TY  - JOUR
AU  - Stoiljković, Dragoslav
AU  - Jovanović, Slobodan
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5088
AB  - At low pressure, ethylene gas consists of single translating and rotating molecules and behaves as an ideal gas. 
With decrease of free volume by compression, various rotating supramolecular particles are formed, which 
require less space for the movement: molecular pairs, bimolecules and oligomolecules. The appearance of a new 
kind of particles is manifested as a phase transition of the second or third order. An ideal gas consists of single 
translating and rotating molecules. α phase consists of rotating single molecules and rotating molecular pairs and 
it exists when the volume V is reduced to Vc
<V<2Vc
. (Vc
 is critical volume). β phase consists of molecular pairs 
and bimolecules and it exists when V<Vc
 and S>Sc
. (Sc
 is critical entropy). γ phase and liquid ethylene consist 
of bimolecules and oligomolecules and they exist when S<Sc
. The main goal of this article is to publish how 
we developed that model and what were thermodynamical, physical and chemical evidences which confirmed 
its validity. Instead of the classical theory of radical polymerization, we applied Kargin and Kabanov theory of 
polymerization of organized monomer to interpret high pressure free radical polymerization of ethylene. The 
arrangement of monomer molecules in individual supramolecular particles and the supramolecular organization 
of whole system have decisive effects on the mechanism and kinetics of polymerization and on the formation 
of polymer structure and properties, i.e. molecular mass and its distribution, branching, density, etc. There is 
isentropic rule: the same structures and properties are obtained for polyethylene if the entropy of ethylene under 
polymerization conditions is the same, regardless the differences in other polymerization conditions, i.e. reactor 
type, pressure, temperature and method of initiation. Mathematical models of the effect of ethylene entropy on 
polyethylene structure and density enable practical design of polyethylene with desired characteristics. Finally, it 
is mentioned that we expanded the model of ethylene to other gases and liquids as well as to other polymerization 
cases, including liquid monomers and olefins polymerization by Ziegler-Natta, metallocene and Phillips catalysts.
PB  - Iran Polymer and Petrochemical Institute
T2  - Polyolefins Journal
T1  - Compression, supramolecular organization and free radical polymerization of ethylene gas
EP  - 41
IS  - 1
SP  - 23
VL  - 6
DO  - 10.22063/POJ.2018.2252.1117
ER  - 

@article{
author = "Stoiljković, Dragoslav and Jovanović, Slobodan",
year = "2019",
abstract = "At low pressure, ethylene gas consists of single translating and rotating molecules and behaves as an ideal gas. 
With decrease of free volume by compression, various rotating supramolecular particles are formed, which 
require less space for the movement: molecular pairs, bimolecules and oligomolecules. The appearance of a new 
kind of particles is manifested as a phase transition of the second or third order. An ideal gas consists of single 
translating and rotating molecules. α phase consists of rotating single molecules and rotating molecular pairs and 
it exists when the volume V is reduced to Vc
<V<2Vc
. (Vc
 is critical volume). β phase consists of molecular pairs 
and bimolecules and it exists when V<Vc
 and S>Sc
. (Sc
 is critical entropy). γ phase and liquid ethylene consist 
of bimolecules and oligomolecules and they exist when S<Sc
. The main goal of this article is to publish how 
we developed that model and what were thermodynamical, physical and chemical evidences which confirmed 
its validity. Instead of the classical theory of radical polymerization, we applied Kargin and Kabanov theory of 
polymerization of organized monomer to interpret high pressure free radical polymerization of ethylene. The 
arrangement of monomer molecules in individual supramolecular particles and the supramolecular organization 
of whole system have decisive effects on the mechanism and kinetics of polymerization and on the formation 
of polymer structure and properties, i.e. molecular mass and its distribution, branching, density, etc. There is 
isentropic rule: the same structures and properties are obtained for polyethylene if the entropy of ethylene under 
polymerization conditions is the same, regardless the differences in other polymerization conditions, i.e. reactor 
type, pressure, temperature and method of initiation. Mathematical models of the effect of ethylene entropy on 
polyethylene structure and density enable practical design of polyethylene with desired characteristics. Finally, it 
is mentioned that we expanded the model of ethylene to other gases and liquids as well as to other polymerization 
cases, including liquid monomers and olefins polymerization by Ziegler-Natta, metallocene and Phillips catalysts.",
publisher = "Iran Polymer and Petrochemical Institute",
journal = "Polyolefins Journal",
title = "Compression, supramolecular organization and free radical polymerization of ethylene gas",
pages = "41-23",
number = "1",
volume = "6",
doi = "10.22063/POJ.2018.2252.1117"
}

Stoiljković, D.,& Jovanović, S.. (2019). Compression, supramolecular organization and free radical polymerization of ethylene gas. in Polyolefins Journal
Iran Polymer and Petrochemical Institute., 6(1), 23-41.
https://doi.org/10.22063/POJ.2018.2252.1117

Stoiljković D, Jovanović S. Compression, supramolecular organization and free radical polymerization of ethylene gas. in Polyolefins Journal. 2019;6(1):23-41.
doi:10.22063/POJ.2018.2252.1117 .

Stoiljković, Dragoslav, Jovanović, Slobodan, "Compression, supramolecular organization and free radical polymerization of ethylene gas" in Polyolefins Journal, 6, no. 1 (2019):23-41,
https://doi.org/10.22063/POJ.2018.2252.1117 . .

TY  - JOUR
AU  - Knežević-Jugović, Zorica
AU  - Žuža, Milena
AU  - Jakovetić, Sonja
AU  - Stefanović, Andrea
AU  - Džunuzović, Enis
AU  - Jeremić, Katarina B.
AU  - Jovanović, Slobodan M.
PY  - 2016
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3457
AB  - The use of penicillin G acylase (PGA) covalently linked to insoluble carrier is expected to produce major advances in pharmaceutical processing industry and the enzyme stability enhancement is still a significant challenge. The objective of this study was to improve catalytic performance of the covalently immobilized PGA on a potential industrial carrier, macroporous poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate) [poly(GMA-co-EGDMA)], by optimizing the copolymerization process and the enzyme attachment procedure. This synthetic copolymer could be a very promising alternative for the development of low-cost, easy-to-prepare, and stable biocatalyst compared to expensive commercially available epoxy carriers such as Eupergit or Sepabeads. The PGA immobilized on poly(GMA-co-EGDMA) in the shape of microbeads obtained by suspension copolymerization appeared to have higher activity yield compared to copolymerization in a cast. Optimal conditions for the immobilization of PGA on poly(GMA-co-EGDMA) microbeads were 1mg/mL of PGA in 0.75mol/L phosphate buffer pH 6.0 at 25 degrees C for 24h, leading to the active biocatalyst with the specific activity of 252.7U/g dry beads. Chemical amination of the immobilized PGA could contribute to the enhanced stability of the biocatalyst by inducing secondary interactions between the enzyme and the carrier, ensuring multipoint attachment. The best balance between the activity yield (51.5%), enzyme loading (25.6mg/g), and stability (stabilization factor 22.2) was achieved for the partially modified PGA.
PB  - Wiley, Hoboken
T2  - Biotechnology Progress
T1  - An approach for the improved immobilization of penicillin G acylase onto macroporous poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate) as a potential industrial biocatalyst
EP  - 53
IS  - 1
SP  - 43
VL  - 32
DO  - 10.1002/btpr.2181
ER  - 

@article{
author = "Knežević-Jugović, Zorica and Žuža, Milena and Jakovetić, Sonja and Stefanović, Andrea and Džunuzović, Enis and Jeremić, Katarina B. and Jovanović, Slobodan M.",
year = "2016",
abstract = "The use of penicillin G acylase (PGA) covalently linked to insoluble carrier is expected to produce major advances in pharmaceutical processing industry and the enzyme stability enhancement is still a significant challenge. The objective of this study was to improve catalytic performance of the covalently immobilized PGA on a potential industrial carrier, macroporous poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate) [poly(GMA-co-EGDMA)], by optimizing the copolymerization process and the enzyme attachment procedure. This synthetic copolymer could be a very promising alternative for the development of low-cost, easy-to-prepare, and stable biocatalyst compared to expensive commercially available epoxy carriers such as Eupergit or Sepabeads. The PGA immobilized on poly(GMA-co-EGDMA) in the shape of microbeads obtained by suspension copolymerization appeared to have higher activity yield compared to copolymerization in a cast. Optimal conditions for the immobilization of PGA on poly(GMA-co-EGDMA) microbeads were 1mg/mL of PGA in 0.75mol/L phosphate buffer pH 6.0 at 25 degrees C for 24h, leading to the active biocatalyst with the specific activity of 252.7U/g dry beads. Chemical amination of the immobilized PGA could contribute to the enhanced stability of the biocatalyst by inducing secondary interactions between the enzyme and the carrier, ensuring multipoint attachment. The best balance between the activity yield (51.5%), enzyme loading (25.6mg/g), and stability (stabilization factor 22.2) was achieved for the partially modified PGA.",
publisher = "Wiley, Hoboken",
journal = "Biotechnology Progress",
title = "An approach for the improved immobilization of penicillin G acylase onto macroporous poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate) as a potential industrial biocatalyst",
pages = "53-43",
number = "1",
volume = "32",
doi = "10.1002/btpr.2181"
}

Knežević-Jugović, Z., Žuža, M., Jakovetić, S., Stefanović, A., Džunuzović, E., Jeremić, K. B.,& Jovanović, S. M.. (2016). An approach for the improved immobilization of penicillin G acylase onto macroporous poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate) as a potential industrial biocatalyst. in Biotechnology Progress
Wiley, Hoboken., 32(1), 43-53.
https://doi.org/10.1002/btpr.2181

Knežević-Jugović Z, Žuža M, Jakovetić S, Stefanović A, Džunuzović E, Jeremić KB, Jovanović SM. An approach for the improved immobilization of penicillin G acylase onto macroporous poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate) as a potential industrial biocatalyst. in Biotechnology Progress. 2016;32(1):43-53.
doi:10.1002/btpr.2181 .

Knežević-Jugović, Zorica, Žuža, Milena, Jakovetić, Sonja, Stefanović, Andrea, Džunuzović, Enis, Jeremić, Katarina B., Jovanović, Slobodan M., "An approach for the improved immobilization of penicillin G acylase onto macroporous poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate) as a potential industrial biocatalyst" in Biotechnology Progress, 32, no. 1 (2016):43-53,
https://doi.org/10.1002/btpr.2181 . .

TY  - JOUR
AU  - Stojanović, Željko
AU  - Jeremić, Katarina
AU  - Jovanović, Slobodan
PY  - 2013
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5731
AB  - The dilute solution behavior of six carboxymethyl starch (CMS) samples was investigated in aqueous NaCl solutions of different concentration (0.01, 0.05, 0.1, and 0.5 M) by dynamic light scattering (DLS) at 25°C. The values of weight average molar mass, Mw, of the investigated CMS samples were in the range from 9 × 105 to 2.1 × 107 g/mol. Three of the CMS samples were obtained from corn starch and the other three from potato starch. They had different degrees of substitution, DS, ranging from 0.4 to 1.1. The translational diffusion coefficient, Dz, and hydrodynamic radius, Rh, were determined for all CMS samples in aqueous NaCl solutions of different concentrations by the DLS method. The obtained results were treated together with previous results obtained by static light scattering and viscometry, which enabled the calculation of the structure-sensitive parameter, ρ, and the dependence of Rh, radius of gyration, Rg, and viscosity radius, Rη, on molar mass. The calculated values of the ρ parameter were independent of molar mass. The parameter ρ did not change significantly with the variation of the salt concentration in water, its values being in the range from 1.10 to 1.19. The values of exponent ni in the log-log dependence of Rg, Rh, and Rη on Mw were in the range between 0.42 and 0.47; 0.36 and 0.49; 0.42 and 0.44, respectively. These values are characteristic of branched structures of macromolecules.
PB  - Wiley-VCH Verlag
T2  - Starch/Staerke
T1  - Molecular structure of carboxymethyl starch in dilute aqueous sodium chloride solutions
EP  - 911
IS  - 11-12
SP  - 902
VL  - 65
DO  - 10.1002/star.201200225
ER  - 

@article{
author = "Stojanović, Željko and Jeremić, Katarina and Jovanović, Slobodan",
year = "2013",
abstract = "The dilute solution behavior of six carboxymethyl starch (CMS) samples was investigated in aqueous NaCl solutions of different concentration (0.01, 0.05, 0.1, and 0.5 M) by dynamic light scattering (DLS) at 25°C. The values of weight average molar mass, Mw, of the investigated CMS samples were in the range from 9 × 105 to 2.1 × 107 g/mol. Three of the CMS samples were obtained from corn starch and the other three from potato starch. They had different degrees of substitution, DS, ranging from 0.4 to 1.1. The translational diffusion coefficient, Dz, and hydrodynamic radius, Rh, were determined for all CMS samples in aqueous NaCl solutions of different concentrations by the DLS method. The obtained results were treated together with previous results obtained by static light scattering and viscometry, which enabled the calculation of the structure-sensitive parameter, ρ, and the dependence of Rh, radius of gyration, Rg, and viscosity radius, Rη, on molar mass. The calculated values of the ρ parameter were independent of molar mass. The parameter ρ did not change significantly with the variation of the salt concentration in water, its values being in the range from 1.10 to 1.19. The values of exponent ni in the log-log dependence of Rg, Rh, and Rη on Mw were in the range between 0.42 and 0.47; 0.36 and 0.49; 0.42 and 0.44, respectively. These values are characteristic of branched structures of macromolecules.",
publisher = "Wiley-VCH Verlag",
journal = "Starch/Staerke",
title = "Molecular structure of carboxymethyl starch in dilute aqueous sodium chloride solutions",
pages = "911-902",
number = "11-12",
volume = "65",
doi = "10.1002/star.201200225"
}

Stojanović, Ž., Jeremić, K.,& Jovanović, S.. (2013). Molecular structure of carboxymethyl starch in dilute aqueous sodium chloride solutions. in Starch/Staerke
Wiley-VCH Verlag., 65(11-12), 902-911.
https://doi.org/10.1002/star.201200225

Stojanović Ž, Jeremić K, Jovanović S. Molecular structure of carboxymethyl starch in dilute aqueous sodium chloride solutions. in Starch/Staerke. 2013;65(11-12):902-911.
doi:10.1002/star.201200225 .

Stojanović, Željko, Jeremić, Katarina, Jovanović, Slobodan, "Molecular structure of carboxymethyl starch in dilute aqueous sodium chloride solutions" in Starch/Staerke, 65, no. 11-12 (2013):902-911,
https://doi.org/10.1002/star.201200225 . .

TY  - JOUR
AU  - Jovanović, Slobodan
AU  - Džunuzović, Jasna
AU  - Stojanović, Željko
PY  - 2013
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5710
AB  - A short review of biopolymers based on starch (starch derivatives, thermoplastic starch), lignin and hemicelluloses, chitin (chitosan) and products obtained by degradation of starch and other polysaccharides and sugars (poly(lactic acid), poly(hydroxyalkanoates)), as well as some of their basic properties and application area, are given in this part. The problem of environmental and economic feasibility of biopolymers based on renewable raw materials and their competitiveness with polymers based on fossil raw materials is discussed. Also pointed out are the problems that appear due to the increasing use of agricultural land for the production of raw materials for the chemical industry and energy, instead for the production of food for humans and animals. The optimistic assessments of experts considering the development perspectives of biopolymers based on renewable raw materials in the next ten years have also been pointed out. At the end of the paper, the success of a team of researchers gathered around the experts from the company Bayer is indicated. They were the first in the world to develop a catalyst by which they managed to effectively activate CO- and incorporate it into polyols, used for the synthesis of polyurethanes in semi-industrial scale. By applying this process, for the first time a pollutant will be used as a basic raw material for the synthesis of organic compounds, which will have significant consequences on the development of the chemical industry, and therefore the production of polymers.
AB  - U okviru ovoga dijela rada dan je kratak prikaz biopolimera na bazi škroba (derivati škroba, termoplastièni škrob), lignina i hemiceluloze, hitina (hitozan) i na bazi proizvoda razgradnje škroba, drugih polisaharida i šećera (poli(mliječna kiselina), polihidroksialkanoati), kao i neka njihova osnovna svojstva i područje primjene. Razmatran je problem ekološke i ekonomske prihvatljivosti biopolimera na bazi obnovljivih sirovina i njihove konkurentnosti s polimerima na bazi fosilnih sirovina. Ukazano je i na probleme do kojih već dolazi zbog sve veće upotrebe poljoprivrednog zemljišta za proizvodnju sirovina za kemijsku industriju i energente, umjesto za proizvodnju hrane za ljude i životinje. Ukazano je također na optimistične procjene stručnjaka o perspektivi razvoja proizvodnje biopolimera na bazi obnovljivih sirovina. Na kraju rada je ukazano i na uspjeh tima istraživača okupljenih oko stručnjaka tvrtke Bayer, koji su prvi u svijetu razvili katalizator, pomoću kojeg su uspjeli učinkovito aktivirati CO i ugraditi ga u poliole, koje upotrebljavaju za sintezu poliuretana u poluindrustrijskim razmjerima. Ovim postupkom će prvi put jedan zagađivač biti upotrijebljen kao osnovna sirovina za sintezu organskih spojeva, što će imati nesagledive posljedice na razvoj kemijske industrije, a samim tim i proizvodnje polimera.
PB  - Croatian Society of Chemical Engineers
T2  - Kemija u industriji/Journal of Chemists and Chemical Engineers
T1  - Polymers based on renewable raw materials - Part II
T1  - Polimeri na bazi obnovljivih sirovina – II. dio
EP  - 326
IS  - 9-10
SP  - 315
VL  - 62
UR  - https://hdl.handle.net/21.15107/rcub_cer_1369
ER  - 

@article{
author = "Jovanović, Slobodan and Džunuzović, Jasna and Stojanović, Željko",
year = "2013",
abstract = "A short review of biopolymers based on starch (starch derivatives, thermoplastic starch), lignin and hemicelluloses, chitin (chitosan) and products obtained by degradation of starch and other polysaccharides and sugars (poly(lactic acid), poly(hydroxyalkanoates)), as well as some of their basic properties and application area, are given in this part. The problem of environmental and economic feasibility of biopolymers based on renewable raw materials and their competitiveness with polymers based on fossil raw materials is discussed. Also pointed out are the problems that appear due to the increasing use of agricultural land for the production of raw materials for the chemical industry and energy, instead for the production of food for humans and animals. The optimistic assessments of experts considering the development perspectives of biopolymers based on renewable raw materials in the next ten years have also been pointed out. At the end of the paper, the success of a team of researchers gathered around the experts from the company Bayer is indicated. They were the first in the world to develop a catalyst by which they managed to effectively activate CO- and incorporate it into polyols, used for the synthesis of polyurethanes in semi-industrial scale. By applying this process, for the first time a pollutant will be used as a basic raw material for the synthesis of organic compounds, which will have significant consequences on the development of the chemical industry, and therefore the production of polymers., U okviru ovoga dijela rada dan je kratak prikaz biopolimera na bazi škroba (derivati škroba, termoplastièni škrob), lignina i hemiceluloze, hitina (hitozan) i na bazi proizvoda razgradnje škroba, drugih polisaharida i šećera (poli(mliječna kiselina), polihidroksialkanoati), kao i neka njihova osnovna svojstva i područje primjene. Razmatran je problem ekološke i ekonomske prihvatljivosti biopolimera na bazi obnovljivih sirovina i njihove konkurentnosti s polimerima na bazi fosilnih sirovina. Ukazano je i na probleme do kojih već dolazi zbog sve veće upotrebe poljoprivrednog zemljišta za proizvodnju sirovina za kemijsku industriju i energente, umjesto za proizvodnju hrane za ljude i životinje. Ukazano je također na optimistične procjene stručnjaka o perspektivi razvoja proizvodnje biopolimera na bazi obnovljivih sirovina. Na kraju rada je ukazano i na uspjeh tima istraživača okupljenih oko stručnjaka tvrtke Bayer, koji su prvi u svijetu razvili katalizator, pomoću kojeg su uspjeli učinkovito aktivirati CO i ugraditi ga u poliole, koje upotrebljavaju za sintezu poliuretana u poluindrustrijskim razmjerima. Ovim postupkom će prvi put jedan zagađivač biti upotrijebljen kao osnovna sirovina za sintezu organskih spojeva, što će imati nesagledive posljedice na razvoj kemijske industrije, a samim tim i proizvodnje polimera.",
publisher = "Croatian Society of Chemical Engineers",
journal = "Kemija u industriji/Journal of Chemists and Chemical Engineers",
title = "Polymers based on renewable raw materials - Part II, Polimeri na bazi obnovljivih sirovina – II. dio",
pages = "326-315",
number = "9-10",
volume = "62",
url = "https://hdl.handle.net/21.15107/rcub_cer_1369"
}

Jovanović, S., Džunuzović, J.,& Stojanović, Ž.. (2013). Polymers based on renewable raw materials - Part II. in Kemija u industriji/Journal of Chemists and Chemical Engineers
Croatian Society of Chemical Engineers., 62(9-10), 315-326.
https://hdl.handle.net/21.15107/rcub_cer_1369

Jovanović S, Džunuzović J, Stojanović Ž. Polymers based on renewable raw materials - Part II. in Kemija u industriji/Journal of Chemists and Chemical Engineers. 2013;62(9-10):315-326.
https://hdl.handle.net/21.15107/rcub_cer_1369 .

Jovanović, Slobodan, Džunuzović, Jasna, Stojanović, Željko, "Polymers based on renewable raw materials - Part II" in Kemija u industriji/Journal of Chemists and Chemical Engineers, 62, no. 9-10 (2013):315-326,
https://hdl.handle.net/21.15107/rcub_cer_1369 .

TY  - JOUR
AU  - Jovanović, Slobodan
AU  - Džunuzović, Jasna
AU  - Stojanović, Željko
PY  - 2013
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5709
AB  - This paper gives an overview of the production and application of polymer materials based on renewable raw materials * biopolymers. It is pointed out that, investment of resources in the study of renewable raw materials in the last twenty years has led to the improvement of old and development of completely new chemical and biochemical processes for using biomass for the production of low molecular weight chemical substances, and especially for the production of biopolymers, which are biodegradable and compostable, and biopolymers which are nonbiodegradable. In the same period, producers of polymers based on fossil raw materials have also developed biopolymers that are biodegradable and some of them compostable and, most important, compatible with biopolymers based on renewable raw materials. The facts considering the state of biopolymers based on renewable raw materials on the market, and prediction of production increase over the next five years are also stated. Additionally, the main renewable raw materials and the biopolymers made from them that are already present in the world market are briefly listed. A short review of biopolymers based on cellulose from wood and annual plants is also given.
AB  - U okviru ovoga rada dan je pregled stanja u proizvodnji i primjeni polimernih materijala na bazi obnovljivih sirovina – biopolimera. Ukazano je na to da su ulaganjem sredstava u izučavanje obnovljivih sirovina u posljednjih dvadesetak godina unaprijeđeni stari i razvijeni potpuno novi kemijski i biokemijski postupci uporabe biomase za dobivanje niskomolekulskih kemijskih supstancija, a posebno biopolimera koji su i biorazgradivi i kompostabilni, ali i biopolimera koji su bionerazgradivi. U istom razdoblju su i proizvođači polimera na bazi fosilnih sirovina razvili biopolimere koji su biorazgradivi, a neki i kompostabilni i što je vrlo bitno kompatibilni s biopolimerima na bazi obnovljivih sirovina. Navedeni su i podaci o stanju na tržištu biopolimera na bazi obnovljivih sirovina, kao i procjene povećanja proizvodnje u sljedećih desetak godina. Pored toga ukratko su prikazane osnovne obnovljive sirovine, kao i biopolimeri koji se od njih proizvode i veze su prisutni na svjetskom tržištu. Dan je kratak prikaz biopolimera na bazi celuloze iz drveta i jednogodišnjih biljaka.
PB  - Croatian Society of Chemical Engineers
T2  - Kemija u industriji/Journal of Chemists and Chemical Engineers
T1  - Polymers based on renewable raw materials - Part I
T1  - Polimeri na bazi obnovljivih sirovina – I. dio
EP  - 314
IS  - 9-10
SP  - 307
VL  - 62
UR  - https://hdl.handle.net/21.15107/rcub_cer_1380
ER  - 

@article{
author = "Jovanović, Slobodan and Džunuzović, Jasna and Stojanović, Željko",
year = "2013",
abstract = "This paper gives an overview of the production and application of polymer materials based on renewable raw materials * biopolymers. It is pointed out that, investment of resources in the study of renewable raw materials in the last twenty years has led to the improvement of old and development of completely new chemical and biochemical processes for using biomass for the production of low molecular weight chemical substances, and especially for the production of biopolymers, which are biodegradable and compostable, and biopolymers which are nonbiodegradable. In the same period, producers of polymers based on fossil raw materials have also developed biopolymers that are biodegradable and some of them compostable and, most important, compatible with biopolymers based on renewable raw materials. The facts considering the state of biopolymers based on renewable raw materials on the market, and prediction of production increase over the next five years are also stated. Additionally, the main renewable raw materials and the biopolymers made from them that are already present in the world market are briefly listed. A short review of biopolymers based on cellulose from wood and annual plants is also given., U okviru ovoga rada dan je pregled stanja u proizvodnji i primjeni polimernih materijala na bazi obnovljivih sirovina – biopolimera. Ukazano je na to da su ulaganjem sredstava u izučavanje obnovljivih sirovina u posljednjih dvadesetak godina unaprijeđeni stari i razvijeni potpuno novi kemijski i biokemijski postupci uporabe biomase za dobivanje niskomolekulskih kemijskih supstancija, a posebno biopolimera koji su i biorazgradivi i kompostabilni, ali i biopolimera koji su bionerazgradivi. U istom razdoblju su i proizvođači polimera na bazi fosilnih sirovina razvili biopolimere koji su biorazgradivi, a neki i kompostabilni i što je vrlo bitno kompatibilni s biopolimerima na bazi obnovljivih sirovina. Navedeni su i podaci o stanju na tržištu biopolimera na bazi obnovljivih sirovina, kao i procjene povećanja proizvodnje u sljedećih desetak godina. Pored toga ukratko su prikazane osnovne obnovljive sirovine, kao i biopolimeri koji se od njih proizvode i veze su prisutni na svjetskom tržištu. Dan je kratak prikaz biopolimera na bazi celuloze iz drveta i jednogodišnjih biljaka.",
publisher = "Croatian Society of Chemical Engineers",
journal = "Kemija u industriji/Journal of Chemists and Chemical Engineers",
title = "Polymers based on renewable raw materials - Part I, Polimeri na bazi obnovljivih sirovina – I. dio",
pages = "314-307",
number = "9-10",
volume = "62",
url = "https://hdl.handle.net/21.15107/rcub_cer_1380"
}

Jovanović, S., Džunuzović, J.,& Stojanović, Ž.. (2013). Polymers based on renewable raw materials - Part I. in Kemija u industriji/Journal of Chemists and Chemical Engineers
Croatian Society of Chemical Engineers., 62(9-10), 307-314.
https://hdl.handle.net/21.15107/rcub_cer_1380

Jovanović S, Džunuzović J, Stojanović Ž. Polymers based on renewable raw materials - Part I. in Kemija u industriji/Journal of Chemists and Chemical Engineers. 2013;62(9-10):307-314.
https://hdl.handle.net/21.15107/rcub_cer_1380 .

Jovanović, Slobodan, Džunuzović, Jasna, Stojanović, Željko, "Polymers based on renewable raw materials - Part I" in Kemija u industriji/Journal of Chemists and Chemical Engineers, 62, no. 9-10 (2013):307-314,
https://hdl.handle.net/21.15107/rcub_cer_1380 .

TY  - JOUR
AU  - Džunuzović, Jasna
AU  - Pergal, Marija
AU  - Vodnik, Vesna
AU  - Špírková, Milena
AU  - Poręba, Rafał
AU  - Jovanović, Slobodan
PY  - 2012
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5694
AB  - Two series of crosslinked poly(urethane-ester-siloxane)s were synthesized from α,ω-dihydroxy-(ethylene oxide-poly(dimethylsiloxane)-ethylene oxide) (EO-PDMS- -EO), 4,4'-methylenediphenyl diisocyanate and Boltorn® hyperbranched polyesters of the second and third pseudo generation, by two-step polymerization in solution. The effect of the EO-PDMS-EO content and functionality of the applied crosslinking agent on the morphology and surface properties of the prepared poly(urethane-ester-siloxane)s was investigated by FTIR spectroscopy, small-angle X-ray scattering (SAXS), atomic force microscopy (AFM), scanning electron microscopy (SEM) and water absorption measurement. Different techniques (FTIR peak deconvolution, SAXS and AFM) revealed that decrease of the crosslinking agent functionality and EO-PDMS-EO content promotes microphase separation in the synthesized poly(urethane-ester-siloxane)s. SEM analysis and water absorption experiments showed that, due to the hydrophobic character of EO-PDMS-EO and its ability to migrate to the surface of poly(urethane-ester-siloxane)s, samples synthesized with higher EO-PDMS-EO content and crosslinking agents of lower functionality had more hydrophobic surfaces and better waterproof performances. The obtained results indicate that the synthesis of poly(urethane-ester-siloxane)s based on EO-PDMS-EO and Boltorn® hyperbranched polyesters leads to the creation of networks with interesting morphological and surface properties, which can be easily tailored by changing the content of EO-PDMS-EO segment or functionality of hyperbranched polyester.
AB  - U ovom radu sintetisane su dve serije umreženih poli(uretan-estar-siloksana) (PUS) korišćenjem α,ω-dihidroksi-(etilenoksid-poli(dimetilsiloksan)-etilenoksida) (EO-PDMS-EO), 4,4'-diizocijanatodifenilmetana i dva Boltorn® hiperrazgranata poliestra (HRP) druge i treće pseudo generacije kao umreživača. Svaka serija se sastoji od uzoraka koji imaju različiti udeo mekog segmenta (EO-PDMS-EO). Uticaj funkcionalnosti korišćenog HRP i udela mekog segmenta na morfologiju i površinska svojstva PUS ispitan je primenom FTIR spektroskopije, SAXS, AFM i SEM analize i merenjem količine apsorbovane vode. Pokazano je da sa smanjenjem funkcionalnosti umreživača i udela EO-PDMS-EO dolazi do povećanja stepena mikrofaznog razdvajanja kod sintetisanih PUS. Pored toga, uzorci PUS sa većim udelom mekog segmenta i sintetisani primenom HRP niže funkcionalnosti pokazuju bolju otpornost na vodu.
PB  - Association of Chemical Engineers of Serbia
T2  - Hemijska industrija
T1  - Investigation of the morphology and surface properties of crosslinked poly(urethane-ester-siloxane)s
T1  - Ispitivanje morfologije i površinskih svojstava umreženih poli(uretan-estar-siloksana)
EP  - 821
IS  - 6
SP  - 813
VL  - 66
DO  - 10.2298/HEMIND121004101D
ER  - 

@article{
author = "Džunuzović, Jasna and Pergal, Marija and Vodnik, Vesna and Špírková, Milena and Poręba, Rafał and Jovanović, Slobodan",
year = "2012",
abstract = "Two series of crosslinked poly(urethane-ester-siloxane)s were synthesized from α,ω-dihydroxy-(ethylene oxide-poly(dimethylsiloxane)-ethylene oxide) (EO-PDMS- -EO), 4,4'-methylenediphenyl diisocyanate and Boltorn® hyperbranched polyesters of the second and third pseudo generation, by two-step polymerization in solution. The effect of the EO-PDMS-EO content and functionality of the applied crosslinking agent on the morphology and surface properties of the prepared poly(urethane-ester-siloxane)s was investigated by FTIR spectroscopy, small-angle X-ray scattering (SAXS), atomic force microscopy (AFM), scanning electron microscopy (SEM) and water absorption measurement. Different techniques (FTIR peak deconvolution, SAXS and AFM) revealed that decrease of the crosslinking agent functionality and EO-PDMS-EO content promotes microphase separation in the synthesized poly(urethane-ester-siloxane)s. SEM analysis and water absorption experiments showed that, due to the hydrophobic character of EO-PDMS-EO and its ability to migrate to the surface of poly(urethane-ester-siloxane)s, samples synthesized with higher EO-PDMS-EO content and crosslinking agents of lower functionality had more hydrophobic surfaces and better waterproof performances. The obtained results indicate that the synthesis of poly(urethane-ester-siloxane)s based on EO-PDMS-EO and Boltorn® hyperbranched polyesters leads to the creation of networks with interesting morphological and surface properties, which can be easily tailored by changing the content of EO-PDMS-EO segment or functionality of hyperbranched polyester., U ovom radu sintetisane su dve serije umreženih poli(uretan-estar-siloksana) (PUS) korišćenjem α,ω-dihidroksi-(etilenoksid-poli(dimetilsiloksan)-etilenoksida) (EO-PDMS-EO), 4,4'-diizocijanatodifenilmetana i dva Boltorn® hiperrazgranata poliestra (HRP) druge i treće pseudo generacije kao umreživača. Svaka serija se sastoji od uzoraka koji imaju različiti udeo mekog segmenta (EO-PDMS-EO). Uticaj funkcionalnosti korišćenog HRP i udela mekog segmenta na morfologiju i površinska svojstva PUS ispitan je primenom FTIR spektroskopije, SAXS, AFM i SEM analize i merenjem količine apsorbovane vode. Pokazano je da sa smanjenjem funkcionalnosti umreživača i udela EO-PDMS-EO dolazi do povećanja stepena mikrofaznog razdvajanja kod sintetisanih PUS. Pored toga, uzorci PUS sa većim udelom mekog segmenta i sintetisani primenom HRP niže funkcionalnosti pokazuju bolju otpornost na vodu.",
publisher = "Association of Chemical Engineers of Serbia",
journal = "Hemijska industrija",
title = "Investigation of the morphology and surface properties of crosslinked poly(urethane-ester-siloxane)s, Ispitivanje morfologije i površinskih svojstava umreženih poli(uretan-estar-siloksana)",
pages = "821-813",
number = "6",
volume = "66",
doi = "10.2298/HEMIND121004101D"
}

Džunuzović, J., Pergal, M., Vodnik, V., Špírková, M., Poręba, R.,& Jovanović, S.. (2012). Investigation of the morphology and surface properties of crosslinked poly(urethane-ester-siloxane)s. in Hemijska industrija
Association of Chemical Engineers of Serbia., 66(6), 813-821.
https://doi.org/10.2298/HEMIND121004101D

Džunuzović J, Pergal M, Vodnik V, Špírková M, Poręba R, Jovanović S. Investigation of the morphology and surface properties of crosslinked poly(urethane-ester-siloxane)s. in Hemijska industrija. 2012;66(6):813-821.
doi:10.2298/HEMIND121004101D .

Džunuzović, Jasna, Pergal, Marija, Vodnik, Vesna, Špírková, Milena, Poręba, Rafał, Jovanović, Slobodan, "Investigation of the morphology and surface properties of crosslinked poly(urethane-ester-siloxane)s" in Hemijska industrija, 66, no. 6 (2012):813-821,
https://doi.org/10.2298/HEMIND121004101D . .

TY  - JOUR
AU  - Stojanović, Željko
AU  - Jeremić, Katarina
AU  - Jovanović, Slobodan
AU  - Nierling, Wolfgang
AU  - Lechner, Manfred Dieter
PY  - 2009
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5622
AB  - Uzorci karboksimetil skroba pripremljeni su reakcijom eterifikacije u heterogenom
medijumu. Tri uzorka su pripremljena iz kukuruznog skroba a tri iz skroba iz krompira. Stepen supstitucije sintetisanih uzoraka je iznosio od 0,40 do 1,10. Uzorci su
ispitivani metodama statičkog i dinamičkog rasipanja svetlosti i viskozimetrijom razblaženih rastvora u 0,10 M rastvoru NaCl kao rastvaraču na 25 °C. Određene su
vrednosti molarnih masa, MW, poluprečnika rotacije, Rg, hidrodinamičkog poluprečnika, Rh, i graničnog viskozitetnog broja, [η]. Utvrđeno je da su uzorci bez obzira na
tip skroba i stepen supstitucije međusobno slični. Fraktalne dimenzije, df, iznose 2,380
(Rg – MW) i 2,406 (Rη – MW), dok parametar ρ iznosi 1,195. Vrednost fraktalne dimenzije i parametra ρ karakteristične su vrednosti za ponašanje razgranatih klastera u
termodinamički dobrim rastvaračima.
AB  - Carboxymethyl starch samples were prepared by etherification in heterogeneous media. Three samples were prepared from corn starch and three samples from potato starch. Degree of substitution of prepared samples ranged from 0.40 to 1.10. The samples were investigated by static and dynamic light scattering and viscosity of diluted solution in 0.10 M NaCl as solvent at 25 °C. The values of molar mass, MW, radius of gyration, Rg, hydrodynamic radius, Rh, and limited viscosity number, [η] were determined. It was found that the samples are similar to each other regardless of the type of starch and the degree of substitution. Fractal dimension, d f, was equal to 2.380 (Rg - MW) and 2.406 (Rη - MW), while parameter ρ was 1.195. The values of fractal dimension and parameter ρ are characteristic values for the behavior of branched clusters in thermodynamically good solvents.
PB  - Association of Chemical Engineers of Serbia
T2  - Hemijska industrija
T1  - Oblik i veličina makromolekula karboksimetil skroba u razblaženim rastvorima
T1  - The shape and size of macromolecules of carboxymethyl starch in diluted solutions
EP  - 602
IS  - 6
SP  - 593
VL  - 63
DO  - 10.2298/HEMIND0906593S
ER  - 

@article{
author = "Stojanović, Željko and Jeremić, Katarina and Jovanović, Slobodan and Nierling, Wolfgang and Lechner, Manfred Dieter",
year = "2009",
abstract = "Uzorci karboksimetil skroba pripremljeni su reakcijom eterifikacije u heterogenom
medijumu. Tri uzorka su pripremljena iz kukuruznog skroba a tri iz skroba iz krompira. Stepen supstitucije sintetisanih uzoraka je iznosio od 0,40 do 1,10. Uzorci su
ispitivani metodama statičkog i dinamičkog rasipanja svetlosti i viskozimetrijom razblaženih rastvora u 0,10 M rastvoru NaCl kao rastvaraču na 25 °C. Određene su
vrednosti molarnih masa, MW, poluprečnika rotacije, Rg, hidrodinamičkog poluprečnika, Rh, i graničnog viskozitetnog broja, [η]. Utvrđeno je da su uzorci bez obzira na
tip skroba i stepen supstitucije međusobno slični. Fraktalne dimenzije, df, iznose 2,380
(Rg – MW) i 2,406 (Rη – MW), dok parametar ρ iznosi 1,195. Vrednost fraktalne dimenzije i parametra ρ karakteristične su vrednosti za ponašanje razgranatih klastera u
termodinamički dobrim rastvaračima., Carboxymethyl starch samples were prepared by etherification in heterogeneous media. Three samples were prepared from corn starch and three samples from potato starch. Degree of substitution of prepared samples ranged from 0.40 to 1.10. The samples were investigated by static and dynamic light scattering and viscosity of diluted solution in 0.10 M NaCl as solvent at 25 °C. The values of molar mass, MW, radius of gyration, Rg, hydrodynamic radius, Rh, and limited viscosity number, [η] were determined. It was found that the samples are similar to each other regardless of the type of starch and the degree of substitution. Fractal dimension, d f, was equal to 2.380 (Rg - MW) and 2.406 (Rη - MW), while parameter ρ was 1.195. The values of fractal dimension and parameter ρ are characteristic values for the behavior of branched clusters in thermodynamically good solvents.",
publisher = "Association of Chemical Engineers of Serbia",
journal = "Hemijska industrija",
title = "Oblik i veličina makromolekula karboksimetil skroba u razblaženim rastvorima, The shape and size of macromolecules of carboxymethyl starch in diluted solutions",
pages = "602-593",
number = "6",
volume = "63",
doi = "10.2298/HEMIND0906593S"
}

Stojanović, Ž., Jeremić, K., Jovanović, S., Nierling, W.,& Lechner, M. D.. (2009). Oblik i veličina makromolekula karboksimetil skroba u razblaženim rastvorima. in Hemijska industrija
Association of Chemical Engineers of Serbia., 63(6), 593-602.
https://doi.org/10.2298/HEMIND0906593S

Stojanović Ž, Jeremić K, Jovanović S, Nierling W, Lechner MD. Oblik i veličina makromolekula karboksimetil skroba u razblaženim rastvorima. in Hemijska industrija. 2009;63(6):593-602.
doi:10.2298/HEMIND0906593S .

Stojanović, Željko, Jeremić, Katarina, Jovanović, Slobodan, Nierling, Wolfgang, Lechner, Manfred Dieter, "Oblik i veličina makromolekula karboksimetil skroba u razblaženim rastvorima" in Hemijska industrija, 63, no. 6 (2009):593-602,
https://doi.org/10.2298/HEMIND0906593S . .

TY  - JOUR
AU  - Jovanović, Slobodan
AU  - Krgović, Milorad
AU  - Ošap, Danijela
PY  - 2008
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5545
AB  - U okviru ovoga rada dat je sistematski pregled uzroka intenzivnog povećanja sadržaja
štetnih supstanci u masi papira i vodama kružnog toka u poslednjih dvadesetak godina i
njihov negativan uticaj na proizvodnost papir mašina i kvalitet proizvedenog papira ili
kartona. Ukratko su opisane metode određivanja sadržaja štetnih supstanci u masi papira i vodama kružnog toka, supstance koje se koriste za fiksiranje i pasiviranje štetnih
supstanci, kao i procesi koji se koriste za uklanjanje štetnih supstanci iz mase papira i
voda kružnog toka u cilju neometanog vođenja proizvodnje i dobijanje papira i kartona
željenih svojstava.
AB  - This work shows a systematic review of the cause for intensive increase of harmful substances in paper pulp and circular water streams during last twenty years, as well as their negative influence on productivity of paper machines and quality of produced paper or board. A brief description of methods for determining the content of harmful substances in paper pulp and circular water stream, substances used for fixation and deactivation of harmful substances, as well as processes used for removing harmful substances from paper pulp and circular water stream for the purpose of smooth production of paper and board with desired properties are given.
PB  - Association of Chemical Engineers of Serbia
T2  - Hemijska industrija
T1  - Štetne supstance i njihovo uklanjanje iz mase papira i voda kružnog toka
T1  - Harmful substances and their removal from paper pulp and and circular water stream
EP  - 263
IS  - 4
SP  - 251
VL  - 62
DO  - 10.2298/HEMIND0804251J
ER  - 

@article{
author = "Jovanović, Slobodan and Krgović, Milorad and Ošap, Danijela",
year = "2008",
abstract = "U okviru ovoga rada dat je sistematski pregled uzroka intenzivnog povećanja sadržaja
štetnih supstanci u masi papira i vodama kružnog toka u poslednjih dvadesetak godina i
njihov negativan uticaj na proizvodnost papir mašina i kvalitet proizvedenog papira ili
kartona. Ukratko su opisane metode određivanja sadržaja štetnih supstanci u masi papira i vodama kružnog toka, supstance koje se koriste za fiksiranje i pasiviranje štetnih
supstanci, kao i procesi koji se koriste za uklanjanje štetnih supstanci iz mase papira i
voda kružnog toka u cilju neometanog vođenja proizvodnje i dobijanje papira i kartona
željenih svojstava., This work shows a systematic review of the cause for intensive increase of harmful substances in paper pulp and circular water streams during last twenty years, as well as their negative influence on productivity of paper machines and quality of produced paper or board. A brief description of methods for determining the content of harmful substances in paper pulp and circular water stream, substances used for fixation and deactivation of harmful substances, as well as processes used for removing harmful substances from paper pulp and circular water stream for the purpose of smooth production of paper and board with desired properties are given.",
publisher = "Association of Chemical Engineers of Serbia",
journal = "Hemijska industrija",
title = "Štetne supstance i njihovo uklanjanje iz mase papira i voda kružnog toka, Harmful substances and their removal from paper pulp and and circular water stream",
pages = "263-251",
number = "4",
volume = "62",
doi = "10.2298/HEMIND0804251J"
}

Jovanović, S., Krgović, M.,& Ošap, D.. (2008). Štetne supstance i njihovo uklanjanje iz mase papira i voda kružnog toka. in Hemijska industrija
Association of Chemical Engineers of Serbia., 62(4), 251-263.
https://doi.org/10.2298/HEMIND0804251J

Jovanović S, Krgović M, Ošap D. Štetne supstance i njihovo uklanjanje iz mase papira i voda kružnog toka. in Hemijska industrija. 2008;62(4):251-263.
doi:10.2298/HEMIND0804251J .

Jovanović, Slobodan, Krgović, Milorad, Ošap, Danijela, "Štetne supstance i njihovo uklanjanje iz mase papira i voda kružnog toka" in Hemijska industrija, 62, no. 4 (2008):251-263,
https://doi.org/10.2298/HEMIND0804251J . .

TY  - JOUR
AU  - Vuković, Jasna
AU  - Pergal, Marija
AU  - Jovanović, Slobodan
AU  - Vodnik, Vesna
PY  - 2008
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5515
AB  - In this paper, two samples of polyurethane (PU) crosslinked with hydroxy -functonal hyperbranched aliphatic polyester of the second pseudo generation were investigated. For the synthesis of these crosslinked PUs two different macrodiols were used: poly(tetramethyleneoxide) (PTMO) for PUPTMO and ethylene oxide-poly(dimethylsiloxane)-ethylene oxide (PDMS-EO) for PUPDMS-EO sample. Synthesized samples behave as elastomers and have yellow color. Obtained results show that swelling degree of the sample PUPDMS-EO in N-methyl-2-pyrrolidinon (NMP) determined at room temperature is higher than for the sample PUPTMO. It has been also observed that thermal properties of these polyurethane networks can be changed by incorporation of siloxane sequences in their structure.
AB  - U ovom radu su prikazani rezultati dobijeni ispitivanjem dva uzorka poliuretana (PU) umrežena hidroksi-funkcionalnim hiperrazgranatim alifatskim poliestrom druge pseudo generacije. Pri sintezi ovih umreženih PU korišćena su dva različita makrodiola: poli(tetrametilenoksid) (PTMO) za sintezu uzorka PUPTMO i etilenoksid-poli(dimetilsiloksan)- etilenoksid (PDMS-EO) za sintezu uzorka PUPDMS-EO. Sintetizovani uzorci se ponašaju kao elastomeri i imaju žuto obojenje. Određivanjem stepena bubrenja u N-metil-2-pirolidonu (NMP) pri sobnoj temperaturi pokazano je da uzorak PUPDMS-EO ima veći stepen bubrenja od uzorka PUPTMO. Primenom termogravimetrije konstatovano je da se uvođenjem siloksanskih sekvenci u korišćeni makrodiol može uticati na termička svojstva sintetizovanih umreženih poliuretana.
PB  - Association of Chemical Engineers of Serbia
T2  - Hemijska industrija
T1  - Crosslinked polyurethanes based on hyperbranched polymers
T1  - Umreženi poliuretani na bazi hiperrazgranatih polimera
EP  - 359
IS  - 6
SP  - 353
VL  - 62
DO  - 10.2298/HEMIND0806353V
ER  - 

@article{
author = "Vuković, Jasna and Pergal, Marija and Jovanović, Slobodan and Vodnik, Vesna",
year = "2008",
abstract = "In this paper, two samples of polyurethane (PU) crosslinked with hydroxy -functonal hyperbranched aliphatic polyester of the second pseudo generation were investigated. For the synthesis of these crosslinked PUs two different macrodiols were used: poly(tetramethyleneoxide) (PTMO) for PUPTMO and ethylene oxide-poly(dimethylsiloxane)-ethylene oxide (PDMS-EO) for PUPDMS-EO sample. Synthesized samples behave as elastomers and have yellow color. Obtained results show that swelling degree of the sample PUPDMS-EO in N-methyl-2-pyrrolidinon (NMP) determined at room temperature is higher than for the sample PUPTMO. It has been also observed that thermal properties of these polyurethane networks can be changed by incorporation of siloxane sequences in their structure., U ovom radu su prikazani rezultati dobijeni ispitivanjem dva uzorka poliuretana (PU) umrežena hidroksi-funkcionalnim hiperrazgranatim alifatskim poliestrom druge pseudo generacije. Pri sintezi ovih umreženih PU korišćena su dva različita makrodiola: poli(tetrametilenoksid) (PTMO) za sintezu uzorka PUPTMO i etilenoksid-poli(dimetilsiloksan)- etilenoksid (PDMS-EO) za sintezu uzorka PUPDMS-EO. Sintetizovani uzorci se ponašaju kao elastomeri i imaju žuto obojenje. Određivanjem stepena bubrenja u N-metil-2-pirolidonu (NMP) pri sobnoj temperaturi pokazano je da uzorak PUPDMS-EO ima veći stepen bubrenja od uzorka PUPTMO. Primenom termogravimetrije konstatovano je da se uvođenjem siloksanskih sekvenci u korišćeni makrodiol može uticati na termička svojstva sintetizovanih umreženih poliuretana.",
publisher = "Association of Chemical Engineers of Serbia",
journal = "Hemijska industrija",
title = "Crosslinked polyurethanes based on hyperbranched polymers, Umreženi poliuretani na bazi hiperrazgranatih polimera",
pages = "359-353",
number = "6",
volume = "62",
doi = "10.2298/HEMIND0806353V"
}

Vuković, J., Pergal, M., Jovanović, S.,& Vodnik, V.. (2008). Crosslinked polyurethanes based on hyperbranched polymers. in Hemijska industrija
Association of Chemical Engineers of Serbia., 62(6), 353-359.
https://doi.org/10.2298/HEMIND0806353V

Vuković J, Pergal M, Jovanović S, Vodnik V. Crosslinked polyurethanes based on hyperbranched polymers. in Hemijska industrija. 2008;62(6):353-359.
doi:10.2298/HEMIND0806353V .

Vuković, Jasna, Pergal, Marija, Jovanović, Slobodan, Vodnik, Vesna, "Crosslinked polyurethanes based on hyperbranched polymers" in Hemijska industrija, 62, no. 6 (2008):353-359,
https://doi.org/10.2298/HEMIND0806353V . .

TY  - JOUR
AU  - Vuković, Jasna
AU  - Lechner, Manfred D.
AU  - Jovanović, Slobodan
PY  - 2007
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5498
AB  - The results of an investigation of the influence of the synthesis procedure, number of pseudo generations and degree of branching of hydroxy-functional aliphatic hyperbranched polyesters (AHBP) on the values of limiting viscosity number, [η], hydrodynamic radius, Rη, molar mass and polydispersity index, Q, are presented in this paper. Two series of AHBP, synthesized from 2,2-bis(hydroxymethyl)propionic acid and di-trimethylolpropane using a pseudo-one-step and a one-step procedure were investigated. The obtained results show that the values of [η] and R η for all examined samples are the highest in a 0.7 mass % solution of LiCl in N,N-dimethylacetamide (LiCl/DMAc), which indicates that this solvent is the best from the investigated ones. The values of [η] in N-methyl-2-pyrrolidinone (NMP) increased up to the sixth pseudo generation, after which a slight decrease occurred as the consequence of the presence of side-reaction products, formed during the synthesis. The appearance of these side-reaction products was also confirmed from the characteristic GPC chromatograms. For the samples of AHBP synthesized using the pseudo-one-step procedure, a good linear dependence between log [η] and log Mw was obtained up to the fifth pseudo generation, when LiCl/DMAc, NMP and DMAc were used as solvents. The values of the "shrinking" factor, g', were calculated for all investigated AHBPs.
PB  - Serbian Chemical Society
T2  - Journal of the Serbian Chemical Society
T1  - Properties of aliphatic hyperbranched polyesters in dilute solutions
EP  - 1506
IS  - 12
SP  - 1493
VL  - 72
DO  - 10.2298/JSC0712493V
ER  - 

@article{
author = "Vuković, Jasna and Lechner, Manfred D. and Jovanović, Slobodan",
year = "2007",
abstract = "The results of an investigation of the influence of the synthesis procedure, number of pseudo generations and degree of branching of hydroxy-functional aliphatic hyperbranched polyesters (AHBP) on the values of limiting viscosity number, [η], hydrodynamic radius, Rη, molar mass and polydispersity index, Q, are presented in this paper. Two series of AHBP, synthesized from 2,2-bis(hydroxymethyl)propionic acid and di-trimethylolpropane using a pseudo-one-step and a one-step procedure were investigated. The obtained results show that the values of [η] and R η for all examined samples are the highest in a 0.7 mass % solution of LiCl in N,N-dimethylacetamide (LiCl/DMAc), which indicates that this solvent is the best from the investigated ones. The values of [η] in N-methyl-2-pyrrolidinone (NMP) increased up to the sixth pseudo generation, after which a slight decrease occurred as the consequence of the presence of side-reaction products, formed during the synthesis. The appearance of these side-reaction products was also confirmed from the characteristic GPC chromatograms. For the samples of AHBP synthesized using the pseudo-one-step procedure, a good linear dependence between log [η] and log Mw was obtained up to the fifth pseudo generation, when LiCl/DMAc, NMP and DMAc were used as solvents. The values of the "shrinking" factor, g', were calculated for all investigated AHBPs.",
publisher = "Serbian Chemical Society",
journal = "Journal of the Serbian Chemical Society",
title = "Properties of aliphatic hyperbranched polyesters in dilute solutions",
pages = "1506-1493",
number = "12",
volume = "72",
doi = "10.2298/JSC0712493V"
}

Vuković, J., Lechner, M. D.,& Jovanović, S.. (2007). Properties of aliphatic hyperbranched polyesters in dilute solutions. in Journal of the Serbian Chemical Society
Serbian Chemical Society., 72(12), 1493-1506.
https://doi.org/10.2298/JSC0712493V

Vuković J, Lechner MD, Jovanović S. Properties of aliphatic hyperbranched polyesters in dilute solutions. in Journal of the Serbian Chemical Society. 2007;72(12):1493-1506.
doi:10.2298/JSC0712493V .

Vuković, Jasna, Lechner, Manfred D., Jovanović, Slobodan, "Properties of aliphatic hyperbranched polyesters in dilute solutions" in Journal of the Serbian Chemical Society, 72, no. 12 (2007):1493-1506,
https://doi.org/10.2298/JSC0712493V . .

TY  - JOUR
AU  - Nastasović, Aleksandra
AU  - Onjia, Antonije
AU  - Milonjić, Slobodan K.
AU  - Jovanović, Slobodan M.
PY  - 2007
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1066
AB  - The possibility of polymer characterization by inverse gas chromatography (IGC) was illustrated with the study of sorption properties of macroporous crosslinked poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate), PGME, synthesized by suspension copolymerization, and copolymer modified with ethylene diamine, PGME-en. The data collected from IGC experiments at infinite dilution are used for the calculation of the thermodynamic parameters of adsorption, dispersive components of the surface free energies, and the acid/base constants. .
AB  - U okviru rada prikazane su mogućnosti korišćenja inverzne gasne hromatografije (IGC) za karakterizaciju polimera. Umreženi makroporozni kopolimer glicidilmetakrilata, GMA, i etilenglikoldimetakrilata, EGDMA, poli (GMA-co-EGDMA) sintetizovan je suspenzionom kopolimerizacijom, a zatim modifikovan reakcijom sa etilendiaminom. Uzorcima polaznog i modifikovanog kopolimera, poli(GMA-co-EGDMA)-en, su pri nultoj prekrivenosti određeni termodinamički parametri adsorpcije, disperzivna komponenta slobodne površinske energije i kiselo/bazna svojstva.
PB  - Association of Chemical Engineers of Serbia
T2  - Hemijska industrija
T1  - Application of inverse gas chromatography for polymer characterization
T1  - Primena inverzne gasne hromatografije za karakterizaciju polimera
EP  - 349
IS  - 6
SP  - 342
VL  - 61
DO  - 10.2298/HEMIND0706342N
ER  - 

@article{
author = "Nastasović, Aleksandra and Onjia, Antonije and Milonjić, Slobodan K. and Jovanović, Slobodan M.",
year = "2007",
abstract = "The possibility of polymer characterization by inverse gas chromatography (IGC) was illustrated with the study of sorption properties of macroporous crosslinked poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate), PGME, synthesized by suspension copolymerization, and copolymer modified with ethylene diamine, PGME-en. The data collected from IGC experiments at infinite dilution are used for the calculation of the thermodynamic parameters of adsorption, dispersive components of the surface free energies, and the acid/base constants. ., U okviru rada prikazane su mogućnosti korišćenja inverzne gasne hromatografije (IGC) za karakterizaciju polimera. Umreženi makroporozni kopolimer glicidilmetakrilata, GMA, i etilenglikoldimetakrilata, EGDMA, poli (GMA-co-EGDMA) sintetizovan je suspenzionom kopolimerizacijom, a zatim modifikovan reakcijom sa etilendiaminom. Uzorcima polaznog i modifikovanog kopolimera, poli(GMA-co-EGDMA)-en, su pri nultoj prekrivenosti određeni termodinamički parametri adsorpcije, disperzivna komponenta slobodne površinske energije i kiselo/bazna svojstva.",
publisher = "Association of Chemical Engineers of Serbia",
journal = "Hemijska industrija",
title = "Application of inverse gas chromatography for polymer characterization, Primena inverzne gasne hromatografije za karakterizaciju polimera",
pages = "349-342",
number = "6",
volume = "61",
doi = "10.2298/HEMIND0706342N"
}

Nastasović, A., Onjia, A., Milonjić, S. K.,& Jovanović, S. M.. (2007). Application of inverse gas chromatography for polymer characterization. in Hemijska industrija
Association of Chemical Engineers of Serbia., 61(6), 342-349.
https://doi.org/10.2298/HEMIND0706342N

Nastasović A, Onjia A, Milonjić SK, Jovanović SM. Application of inverse gas chromatography for polymer characterization. in Hemijska industrija. 2007;61(6):342-349.
doi:10.2298/HEMIND0706342N .

Nastasović, Aleksandra, Onjia, Antonije, Milonjić, Slobodan K., Jovanović, Slobodan M., "Application of inverse gas chromatography for polymer characterization" in Hemijska industrija, 61, no. 6 (2007):342-349,
https://doi.org/10.2298/HEMIND0706342N . .

TY  - JOUR
AU  - Prodanović, Radivoje
AU  - Milosavic, Nenad B.
AU  - Jovanović, Slobodan
AU  - Ćirković-Veličković, Tanja
AU  - Vujčić, Zoran
AU  - Jankov, Ratko M.
PY  - 2006
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5458
AB  - alpha-Glucosidase from baker's yeast was immobilized on macroporous copolymers of ethylene glycol dimethacrylate and glycidyl methacrylate, poly(GMA-co-EGDMA), with various surface characteristics and pore sizes ranging from 44 nm to 270 nm. Immobilization was done by glutaraldehyde on the copolymer previously modified with 1,2-diaminoethane. The specific activity of the obtained immobilized enzyme varied from 27 to 81 U/g depending on the employed copolymer. The half lives of the immobilized enzyme in cosolvents were influenced by the surface characteristics of the copolymer, ranging from 60 to 150 min in 35 % methanol and from 10 to 44 min in 45 % dimethyl sulphoxide (DMSO). The best stabilities were obtained when the enzyme was immobilized onto a copolymer having a pore size of 48 rim in methanol and 270 nm in DMSO.
AB  - α-Glukozidaza izolovana iz pekarskog kvasca je imobilizovana na makroporoznim glicidil-metakrilatima različitih površinskih karakteristika i veličina pora od 44 do 270 nm. Imobilizacija je izvedena glutaraldehidom na polimeru prethodno modifikovanom sa 1,2-diaminoetanom. Specifična aktivnost dobijenog imobilizovanog enzima je varirala od 27 do 81U/g u zavisnosti od vrste korišćenog polimera. Poluživoti imobilizovanog enzima u korastvaračima su zavisili od površinskih karakteristika polimera i kretali su se u opsegu od 60 do 150 min u 35%(v/v) metanolu i od 10 do 44 min u 45 % (v/v) dimetilsufoksidu. Najveća stabilnost u metanolu je dobijena imobilizacijom enzima na polimeru sa veličinom pora od 48 nm a u dimetilsulfoksidu na polimeru sa veličinom pora od 270 nm.
PB  - Serbian Chemical Soc, Belgrade
T2  - Journal of the Serbian Chemical Society
T1  - Stabilization of alpha-glucosidase in organic solvents by immobilization on macroporous poly(GMA-co-EGDMA) with different surface characteristics
T1  - Stabilizacija α-glukozidaze u organskim rastvaračima imobilizacijom na makroporoznim (poli) glicidil metakrilatima različitih površinskih karakteristika
EP  - 347
IS  - 4
SP  - 339
VL  - 71
DO  - 10.2298/JSC0604339P
ER  - 

@article{
author = "Prodanović, Radivoje and Milosavic, Nenad B. and Jovanović, Slobodan and Ćirković-Veličković, Tanja and Vujčić, Zoran and Jankov, Ratko M.",
year = "2006",
abstract = "alpha-Glucosidase from baker's yeast was immobilized on macroporous copolymers of ethylene glycol dimethacrylate and glycidyl methacrylate, poly(GMA-co-EGDMA), with various surface characteristics and pore sizes ranging from 44 nm to 270 nm. Immobilization was done by glutaraldehyde on the copolymer previously modified with 1,2-diaminoethane. The specific activity of the obtained immobilized enzyme varied from 27 to 81 U/g depending on the employed copolymer. The half lives of the immobilized enzyme in cosolvents were influenced by the surface characteristics of the copolymer, ranging from 60 to 150 min in 35 % methanol and from 10 to 44 min in 45 % dimethyl sulphoxide (DMSO). The best stabilities were obtained when the enzyme was immobilized onto a copolymer having a pore size of 48 rim in methanol and 270 nm in DMSO., α-Glukozidaza izolovana iz pekarskog kvasca je imobilizovana na makroporoznim glicidil-metakrilatima različitih površinskih karakteristika i veličina pora od 44 do 270 nm. Imobilizacija je izvedena glutaraldehidom na polimeru prethodno modifikovanom sa 1,2-diaminoetanom. Specifična aktivnost dobijenog imobilizovanog enzima je varirala od 27 do 81U/g u zavisnosti od vrste korišćenog polimera. Poluživoti imobilizovanog enzima u korastvaračima su zavisili od površinskih karakteristika polimera i kretali su se u opsegu od 60 do 150 min u 35%(v/v) metanolu i od 10 do 44 min u 45 % (v/v) dimetilsufoksidu. Najveća stabilnost u metanolu je dobijena imobilizacijom enzima na polimeru sa veličinom pora od 48 nm a u dimetilsulfoksidu na polimeru sa veličinom pora od 270 nm.",
publisher = "Serbian Chemical Soc, Belgrade",
journal = "Journal of the Serbian Chemical Society",
title = "Stabilization of alpha-glucosidase in organic solvents by immobilization on macroporous poly(GMA-co-EGDMA) with different surface characteristics, Stabilizacija α-glukozidaze u organskim rastvaračima imobilizacijom na makroporoznim (poli) glicidil metakrilatima različitih površinskih karakteristika",
pages = "347-339",
number = "4",
volume = "71",
doi = "10.2298/JSC0604339P"
}

Prodanović, R., Milosavic, N. B., Jovanović, S., Ćirković-Veličković, T., Vujčić, Z.,& Jankov, R. M.. (2006). Stabilization of alpha-glucosidase in organic solvents by immobilization on macroporous poly(GMA-co-EGDMA) with different surface characteristics. in Journal of the Serbian Chemical Society
Serbian Chemical Soc, Belgrade., 71(4), 339-347.
https://doi.org/10.2298/JSC0604339P

Prodanović R, Milosavic NB, Jovanović S, Ćirković-Veličković T, Vujčić Z, Jankov RM. Stabilization of alpha-glucosidase in organic solvents by immobilization on macroporous poly(GMA-co-EGDMA) with different surface characteristics. in Journal of the Serbian Chemical Society. 2006;71(4):339-347.
doi:10.2298/JSC0604339P .

Prodanović, Radivoje, Milosavic, Nenad B., Jovanović, Slobodan, Ćirković-Veličković, Tanja, Vujčić, Zoran, Jankov, Ratko M., "Stabilization of alpha-glucosidase in organic solvents by immobilization on macroporous poly(GMA-co-EGDMA) with different surface characteristics" in Journal of the Serbian Chemical Society, 71, no. 4 (2006):339-347,
https://doi.org/10.2298/JSC0604339P . .

TY  - JOUR
AU  - Nastasović, Aleksandra
AU  - Jovanović, Slobodan M.
AU  - Onjia, Antonije
AU  - Sandić, Zvjezdana P.
AU  - Malović, Ljiljana T.
AU  - Jakovljević, Dragica
AU  - Vuković, Zorica M.
PY  - 2006
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/979
AB  - Macroporous crosslinked poly(GMA-co-EGDMA) was synthesized by the suspension copolymerisation and functionalized by the ring-opening reaction of the pendant epoxy groups with ethylene diamine. The porosity parameters (specific pore volume, specific surface area, and pore diameter, which corresponds to half of the pore volume) for the initial and amino-functionalized copolymer samples were calculated from the cumulative pore volume distribution curves obtained by mercury porosimetry. The selectivity, sorption capacity and sorption rate of amino-functionalized poly(GMA-co-EGDMA)-en were determined under static conditions. The sorption of Cu(ll) and Ag(l) ions on poly(GMA-co-EGDMA)-en was very rapid (ti/2 value about 1 min). Slower sorption was observed for Au(lll) ions with a ti/2 value of 6.5 minutes. The different rates of Au(lll), Cu(ll) and Ag(l) sorption could be applied for gold, copper and silver ion separation from mixed solutions. The sorption of Ni(ll) and Cu(ll) ions from galvanic solution under competitive conditions was also fast, with ti/2 values of 0.5 and 2 min, respectively. However, Zn(ll) sorption was considerably slower (a ti/2 of 10 min). Similar results were obtained for galvanic solution under dynamic conditions, i.e., the metal sorption capacities of poly(GMA-co-EGDMA)-en decreased in the order: Ni(ll)  gt  Cu(ll)  gt  gt  Zn(ll). The reusability of amino-functionalized poly(GMA-co-EGDMA) for Cu(ll) sorption was tested in four sorption/desorption cycles. Regeneration experiments were performed with 0.1 and 1 M H2SO4 showed a Cu(ll) capacity loss of 50 % in the first sorption/desorption cycle. The sorption capacity increased when additional neutralization with 0.1 and 1 M NaOH was performed after each sorption/desorption cycle.
AB  - Umreženi makroporozni kopolimer glicidilmetakrilata i etilenglikoldimetakrilata, poli(GMA-co-EGDMA), sintetizovan je suspenzionom kopolimerizacijom a zatim funkcionalizovan reakcijom bočnih epoksidnih grupa sa etilendiaminom. Pri statičkim uslovima je ispitana selektivnost, kapacitet i brzina sorpcije teških i plemenitih metala iz vodenih rastvora pomoću aminofunkcionalizovanog poli(GMA-co-EGDMA)-en. Sorpcija Ni(ll), Cu(ll) i Zn(ll) jona ispitana je pri dinamičkim uslovima, propuštanjem rastvora za galvanizaciju kroz kolonu napunjenu makroporoznim poli(GMA-co-EGDMA)-en. Regeneraciona moć kopolimera i sposobnost njegove ponovne upotrebe procenjena je na osnovu eksperimenata četiri uzastopna ciklusa sorpcije i desorpcije jona metala.
PB  - Association of Chemical Engineers of Serbia
T2  - Hemijska industrija
T1  - The application of macroporous copolymers in the sorption of heavy and precious metals from aqueous solutions
T1  - Primena makroporoznih kopolimera u sorpciji teških i plemenitih metala iz vodenih rastvora
EP  - 310
IS  - 11-12
SP  - 306
VL  - 60
DO  - 10.2298/HEMIND0612306N
ER  - 

@article{
author = "Nastasović, Aleksandra and Jovanović, Slobodan M. and Onjia, Antonije and Sandić, Zvjezdana P. and Malović, Ljiljana T. and Jakovljević, Dragica and Vuković, Zorica M.",
year = "2006",
abstract = "Macroporous crosslinked poly(GMA-co-EGDMA) was synthesized by the suspension copolymerisation and functionalized by the ring-opening reaction of the pendant epoxy groups with ethylene diamine. The porosity parameters (specific pore volume, specific surface area, and pore diameter, which corresponds to half of the pore volume) for the initial and amino-functionalized copolymer samples were calculated from the cumulative pore volume distribution curves obtained by mercury porosimetry. The selectivity, sorption capacity and sorption rate of amino-functionalized poly(GMA-co-EGDMA)-en were determined under static conditions. The sorption of Cu(ll) and Ag(l) ions on poly(GMA-co-EGDMA)-en was very rapid (ti/2 value about 1 min). Slower sorption was observed for Au(lll) ions with a ti/2 value of 6.5 minutes. The different rates of Au(lll), Cu(ll) and Ag(l) sorption could be applied for gold, copper and silver ion separation from mixed solutions. The sorption of Ni(ll) and Cu(ll) ions from galvanic solution under competitive conditions was also fast, with ti/2 values of 0.5 and 2 min, respectively. However, Zn(ll) sorption was considerably slower (a ti/2 of 10 min). Similar results were obtained for galvanic solution under dynamic conditions, i.e., the metal sorption capacities of poly(GMA-co-EGDMA)-en decreased in the order: Ni(ll)  gt  Cu(ll)  gt  gt  Zn(ll). The reusability of amino-functionalized poly(GMA-co-EGDMA) for Cu(ll) sorption was tested in four sorption/desorption cycles. Regeneration experiments were performed with 0.1 and 1 M H2SO4 showed a Cu(ll) capacity loss of 50 % in the first sorption/desorption cycle. The sorption capacity increased when additional neutralization with 0.1 and 1 M NaOH was performed after each sorption/desorption cycle., Umreženi makroporozni kopolimer glicidilmetakrilata i etilenglikoldimetakrilata, poli(GMA-co-EGDMA), sintetizovan je suspenzionom kopolimerizacijom a zatim funkcionalizovan reakcijom bočnih epoksidnih grupa sa etilendiaminom. Pri statičkim uslovima je ispitana selektivnost, kapacitet i brzina sorpcije teških i plemenitih metala iz vodenih rastvora pomoću aminofunkcionalizovanog poli(GMA-co-EGDMA)-en. Sorpcija Ni(ll), Cu(ll) i Zn(ll) jona ispitana je pri dinamičkim uslovima, propuštanjem rastvora za galvanizaciju kroz kolonu napunjenu makroporoznim poli(GMA-co-EGDMA)-en. Regeneraciona moć kopolimera i sposobnost njegove ponovne upotrebe procenjena je na osnovu eksperimenata četiri uzastopna ciklusa sorpcije i desorpcije jona metala.",
publisher = "Association of Chemical Engineers of Serbia",
journal = "Hemijska industrija",
title = "The application of macroporous copolymers in the sorption of heavy and precious metals from aqueous solutions, Primena makroporoznih kopolimera u sorpciji teških i plemenitih metala iz vodenih rastvora",
pages = "310-306",
number = "11-12",
volume = "60",
doi = "10.2298/HEMIND0612306N"
}

Nastasović, A., Jovanović, S. M., Onjia, A., Sandić, Z. P., Malović, L. T., Jakovljević, D.,& Vuković, Z. M.. (2006). The application of macroporous copolymers in the sorption of heavy and precious metals from aqueous solutions. in Hemijska industrija
Association of Chemical Engineers of Serbia., 60(11-12), 306-310.
https://doi.org/10.2298/HEMIND0612306N

Nastasović A, Jovanović SM, Onjia A, Sandić ZP, Malović LT, Jakovljević D, Vuković ZM. The application of macroporous copolymers in the sorption of heavy and precious metals from aqueous solutions. in Hemijska industrija. 2006;60(11-12):306-310.
doi:10.2298/HEMIND0612306N .

Nastasović, Aleksandra, Jovanović, Slobodan M., Onjia, Antonije, Sandić, Zvjezdana P., Malović, Ljiljana T., Jakovljević, Dragica, Vuković, Zorica M., "The application of macroporous copolymers in the sorption of heavy and precious metals from aqueous solutions" in Hemijska industrija, 60, no. 11-12 (2006):306-310,
https://doi.org/10.2298/HEMIND0612306N . .

TY  - JOUR
AU  - Milosavic, N
AU  - Prodanović, Radivoje
AU  - Jovanović, Slobodan
AU  - Novaković, Irena T.
AU  - Vujčić, Zoran
PY  - 2005
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5475
AB  - Amyloglucosidase from A. niger was covalently immobilized onto poly(GMA-co-EGDMA) by the glutaraldehyde and periodate method. The immobilization of amyloglucosidase after periodate oxidation gave a preparate with the highest specific activity reported so far on similar polymers. The obtained immobilized preparates show the same pH optimum, but a higher temperature optimum compared with the soluble enzyme. The kinetic parameters for the hydrolysis of soluble starch by free and both immobilized enzymes were determined.
AB  - Amiloglukozidaza iz A.niger je imobilizovana na poly(GMA-co-EGDMA) glutaraldehidnom i perjodatnom metodom. Imobilizacija amiloglukozidaze nakon perjodatne oksidacije daje preparat sa najvećom do sada objavljenom specifičnom aktivnosti na sličnim polimerima. Dobijeni imobilizovani preparat ima isti pH optimum ali povećani termooptimum u poređenju sa rastvornim enzimom. Određeni su i kinetički parametri za hidrolizu rastvornog skroba imobilizovanim kao i rastvornim enzimom.
PB  - Serbian Chemical Soc, Belgrade
T2  - Journal of the Serbian Chemical Society
T1  - Preparation and characterization of two types of covalently immobilized amyloglucosidase
T1  - Dobijanje i karakterizacija dva tipa imobilizovane amiloglukozidaze
EP  - 719
IS  - 5
SP  - 713
VL  - 70
DO  - 10.2298/JSC0505713M
ER  - 

@article{
author = "Milosavic, N and Prodanović, Radivoje and Jovanović, Slobodan and Novaković, Irena T. and Vujčić, Zoran",
year = "2005",
abstract = "Amyloglucosidase from A. niger was covalently immobilized onto poly(GMA-co-EGDMA) by the glutaraldehyde and periodate method. The immobilization of amyloglucosidase after periodate oxidation gave a preparate with the highest specific activity reported so far on similar polymers. The obtained immobilized preparates show the same pH optimum, but a higher temperature optimum compared with the soluble enzyme. The kinetic parameters for the hydrolysis of soluble starch by free and both immobilized enzymes were determined., Amiloglukozidaza iz A.niger je imobilizovana na poly(GMA-co-EGDMA) glutaraldehidnom i perjodatnom metodom. Imobilizacija amiloglukozidaze nakon perjodatne oksidacije daje preparat sa najvećom do sada objavljenom specifičnom aktivnosti na sličnim polimerima. Dobijeni imobilizovani preparat ima isti pH optimum ali povećani termooptimum u poređenju sa rastvornim enzimom. Određeni su i kinetički parametri za hidrolizu rastvornog skroba imobilizovanim kao i rastvornim enzimom.",
publisher = "Serbian Chemical Soc, Belgrade",
journal = "Journal of the Serbian Chemical Society",
title = "Preparation and characterization of two types of covalently immobilized amyloglucosidase, Dobijanje i karakterizacija dva tipa imobilizovane amiloglukozidaze",
pages = "719-713",
number = "5",
volume = "70",
doi = "10.2298/JSC0505713M"
}

Milosavic, N., Prodanović, R., Jovanović, S., Novaković, I. T.,& Vujčić, Z.. (2005). Preparation and characterization of two types of covalently immobilized amyloglucosidase. in Journal of the Serbian Chemical Society
Serbian Chemical Soc, Belgrade., 70(5), 713-719.
https://doi.org/10.2298/JSC0505713M

Milosavic N, Prodanović R, Jovanović S, Novaković IT, Vujčić Z. Preparation and characterization of two types of covalently immobilized amyloglucosidase. in Journal of the Serbian Chemical Society. 2005;70(5):713-719.
doi:10.2298/JSC0505713M .

Milosavic, N, Prodanović, Radivoje, Jovanović, Slobodan, Novaković, Irena T., Vujčić, Zoran, "Preparation and characterization of two types of covalently immobilized amyloglucosidase" in Journal of the Serbian Chemical Society, 70, no. 5 (2005):713-719,
https://doi.org/10.2298/JSC0505713M . .

TY  - JOUR
AU  - Jovanović, Slobodan M.
AU  - Nastasović, Aleksandra
AU  - Džunuzović, Enis
AU  - Jeremić, Katarina B.
PY  - 2005
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/763
AB  - Twelve modified dithiocarbamates and a thiuramdisulfide used for the initiation of methyl methacrylate (MMA) polymerization were synthesized in this study. The polymerization of MMA was followed by determine the yield and molar mass of the obtained PMMA as a function of polymerization time. Four of the synthesized dithiocarbamates S-benzyl-N,N-dibenzyldithiocarbamate, S-allyl-N,N-dibenzyldithiocarbamate S-benzyl-N,N-diisobutyldithiocarbamate and S-benzoyl-N,N-diisobutyldithiocarbamate, as well as N,N,N',N'-tetrabenzylthiuramdisulfide acted as iniferters. They were active as the initiators of the photo and/or thermally initiated radical polymerization of MMA in bulk and inert solvents (benzene and toluene). S Benzyl - N,N - dibenzyldithiocarbamate can be successfully used for the initiation of MMA polymerization in a polar solvent such as dimethylacetamide.
AB  - U okviru ovoga rada izvedena je sinteza dvanaest modifikovanih ditiokarbamata i jednog tiuramdisulfida, koji su korišćeni kao inicijatori polimerizacije metilmetakrilata. Određivanjem zavisnosti prinosa i molarne mase polimetilmetakrilata od vremena polimerizacije pokazano je da se četiri od sintetizovanih ditiokarbamata: S-benzil-N,N-dibenzilditiokarbamat S-alil-N,N-dibenzilditiokarbamat, S-benzil-N, N-diizobutilditiokarbamat S-benzoil-N, N-diizobutilditiokarbamat, kao i N,N,N',N' tetrabenziltiuramdisulfid ponašaju kao iniferteri i da imaju zadovoljavajuću aktivnost kao inicijatori foto i/ili termički inicirane radikalne polimerizacije MMA u masi i inertnom rastvaraču (benzenu i toluenu). Pokazano je takođe da se iniferter S-benzil-N,N-dibenzilditiokarbamat može vrlo uspešno koristiti i za iniciranje polimerizacije MMA u polarnom rastvaraču kao što je dimetilacetamid.
PB  - Association of Chemical Engineers of Serbia
T2  - Hemijska industrija
T1  - Initiation of MMA polymerization by iniferters based on dithiocarbamates
T1  - Iniciranje polimerizacije metilmetakrilata iniferterima na bazi ditiokarbamata
EP  - 316
IS  - 11-12
SP  - 311
VL  - 59
DO  - 10.2298/HEMIND0512311J
ER  - 

@article{
author = "Jovanović, Slobodan M. and Nastasović, Aleksandra and Džunuzović, Enis and Jeremić, Katarina B.",
year = "2005",
abstract = "Twelve modified dithiocarbamates and a thiuramdisulfide used for the initiation of methyl methacrylate (MMA) polymerization were synthesized in this study. The polymerization of MMA was followed by determine the yield and molar mass of the obtained PMMA as a function of polymerization time. Four of the synthesized dithiocarbamates S-benzyl-N,N-dibenzyldithiocarbamate, S-allyl-N,N-dibenzyldithiocarbamate S-benzyl-N,N-diisobutyldithiocarbamate and S-benzoyl-N,N-diisobutyldithiocarbamate, as well as N,N,N',N'-tetrabenzylthiuramdisulfide acted as iniferters. They were active as the initiators of the photo and/or thermally initiated radical polymerization of MMA in bulk and inert solvents (benzene and toluene). S Benzyl - N,N - dibenzyldithiocarbamate can be successfully used for the initiation of MMA polymerization in a polar solvent such as dimethylacetamide., U okviru ovoga rada izvedena je sinteza dvanaest modifikovanih ditiokarbamata i jednog tiuramdisulfida, koji su korišćeni kao inicijatori polimerizacije metilmetakrilata. Određivanjem zavisnosti prinosa i molarne mase polimetilmetakrilata od vremena polimerizacije pokazano je da se četiri od sintetizovanih ditiokarbamata: S-benzil-N,N-dibenzilditiokarbamat S-alil-N,N-dibenzilditiokarbamat, S-benzil-N, N-diizobutilditiokarbamat S-benzoil-N, N-diizobutilditiokarbamat, kao i N,N,N',N' tetrabenziltiuramdisulfid ponašaju kao iniferteri i da imaju zadovoljavajuću aktivnost kao inicijatori foto i/ili termički inicirane radikalne polimerizacije MMA u masi i inertnom rastvaraču (benzenu i toluenu). Pokazano je takođe da se iniferter S-benzil-N,N-dibenzilditiokarbamat može vrlo uspešno koristiti i za iniciranje polimerizacije MMA u polarnom rastvaraču kao što je dimetilacetamid.",
publisher = "Association of Chemical Engineers of Serbia",
journal = "Hemijska industrija",
title = "Initiation of MMA polymerization by iniferters based on dithiocarbamates, Iniciranje polimerizacije metilmetakrilata iniferterima na bazi ditiokarbamata",
pages = "316-311",
number = "11-12",
volume = "59",
doi = "10.2298/HEMIND0512311J"
}

Jovanović, S. M., Nastasović, A., Džunuzović, E.,& Jeremić, K. B.. (2005). Initiation of MMA polymerization by iniferters based on dithiocarbamates. in Hemijska industrija
Association of Chemical Engineers of Serbia., 59(11-12), 311-316.
https://doi.org/10.2298/HEMIND0512311J

Jovanović SM, Nastasović A, Džunuzović E, Jeremić KB. Initiation of MMA polymerization by iniferters based on dithiocarbamates. in Hemijska industrija. 2005;59(11-12):311-316.
doi:10.2298/HEMIND0512311J .

Jovanović, Slobodan M., Nastasović, Aleksandra, Džunuzović, Enis, Jeremić, Katarina B., "Initiation of MMA polymerization by iniferters based on dithiocarbamates" in Hemijska industrija, 59, no. 11-12 (2005):311-316,
https://doi.org/10.2298/HEMIND0512311J . .

TY  - JOUR
AU  - Nastasović, Aleksandra
AU  - Jovanović, Slobodan M.
AU  - Jakovljević, Dragica
AU  - Stanković, Slavka
AU  - Onjia, Antonije
PY  - 2004
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/609
AB  - Macroporous crosslinked poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate), p(GME), was synthesized by suspension copolymerization and modified by reaction of the pendant epoxy groups with ethylenediamine. The sorption rate and capacity of themodified copolymer, p(GME)-en for Rh(III) Au(III) and Pt(IV) ions were determined in batch experiments under non-competitive conditions. The uptake of Rh(III) was faster than those ofAu(III) and Pt(IV). The sorption capacity for Pt(IV)was determined in the pHrange 0.9–6.0. The maximum Pt(IV) uptake capacity onto p(GME)-en at pH 5.5 was 1.30 mmol/g.
AB  - Umreženi makroporozni poli(glicidilmetakrilat-ko-etilenglikoldimetakrilat) sintetizovan je suspenzionom kopolimerizacijom i modifikovan reakcijom bočnih epoksidnih grupa sa etilendiaminom. Brzina sorpcije i kapacitet modifikovanog kopolimera, poli(GME)-en, za sorpciju Rh(III), Au(III) i Pt(IV) jona određeni su šaržnim eksperimentima pri nekompetitivnim uslovima. Utvrđeno je da je sorpcija Rh(III) jona na poli(GME)-en brža od sorpcije Au(III) i Pt(IV) jona. Kapacitet sorpcije Pt(IV) jona određen je u opsegu pH 0,9 – 6,0. Maksimalna količina Pt(IV) jona vezanih za p(GME)-en pri pH 5,5 iznosi 1,30 mmol/g.
PB  - Serbian Chemical Society, Belgrade
T2  - Journal of the Serbian Chemical Society
T1  - Noble metal binding on macroporous poly(GMA-co-EGDMA) modified with ethylenediamine
T1  - Vezivanje plemenitih metala za makroporozni poli(GMA-co-EGDMA)kopolimer modifikovan sa etilendiaminom
EP  - 460
IS  - 6
SP  - 455
VL  - 69
UR  - https://hdl.handle.net/21.15107/rcub_technorep_609
ER  - 

@article{
author = "Nastasović, Aleksandra and Jovanović, Slobodan M. and Jakovljević, Dragica and Stanković, Slavka and Onjia, Antonije",
year = "2004",
abstract = "Macroporous crosslinked poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate), p(GME), was synthesized by suspension copolymerization and modified by reaction of the pendant epoxy groups with ethylenediamine. The sorption rate and capacity of themodified copolymer, p(GME)-en for Rh(III) Au(III) and Pt(IV) ions were determined in batch experiments under non-competitive conditions. The uptake of Rh(III) was faster than those ofAu(III) and Pt(IV). The sorption capacity for Pt(IV)was determined in the pHrange 0.9–6.0. The maximum Pt(IV) uptake capacity onto p(GME)-en at pH 5.5 was 1.30 mmol/g., Umreženi makroporozni poli(glicidilmetakrilat-ko-etilenglikoldimetakrilat) sintetizovan je suspenzionom kopolimerizacijom i modifikovan reakcijom bočnih epoksidnih grupa sa etilendiaminom. Brzina sorpcije i kapacitet modifikovanog kopolimera, poli(GME)-en, za sorpciju Rh(III), Au(III) i Pt(IV) jona određeni su šaržnim eksperimentima pri nekompetitivnim uslovima. Utvrđeno je da je sorpcija Rh(III) jona na poli(GME)-en brža od sorpcije Au(III) i Pt(IV) jona. Kapacitet sorpcije Pt(IV) jona određen je u opsegu pH 0,9 – 6,0. Maksimalna količina Pt(IV) jona vezanih za p(GME)-en pri pH 5,5 iznosi 1,30 mmol/g.",
publisher = "Serbian Chemical Society, Belgrade",
journal = "Journal of the Serbian Chemical Society",
title = "Noble metal binding on macroporous poly(GMA-co-EGDMA) modified with ethylenediamine, Vezivanje plemenitih metala za makroporozni poli(GMA-co-EGDMA)kopolimer modifikovan sa etilendiaminom",
pages = "460-455",
number = "6",
volume = "69",
url = "https://hdl.handle.net/21.15107/rcub_technorep_609"
}

Nastasović, A., Jovanović, S. M., Jakovljević, D., Stanković, S.,& Onjia, A.. (2004). Noble metal binding on macroporous poly(GMA-co-EGDMA) modified with ethylenediamine. in Journal of the Serbian Chemical Society
Serbian Chemical Society, Belgrade., 69(6), 455-460.
https://hdl.handle.net/21.15107/rcub_technorep_609

Nastasović A, Jovanović SM, Jakovljević D, Stanković S, Onjia A. Noble metal binding on macroporous poly(GMA-co-EGDMA) modified with ethylenediamine. in Journal of the Serbian Chemical Society. 2004;69(6):455-460.
https://hdl.handle.net/21.15107/rcub_technorep_609 .

Nastasović, Aleksandra, Jovanović, Slobodan M., Jakovljević, Dragica, Stanković, Slavka, Onjia, Antonije, "Noble metal binding on macroporous poly(GMA-co-EGDMA) modified with ethylenediamine" in Journal of the Serbian Chemical Society, 69, no. 6 (2004):455-460,
https://hdl.handle.net/21.15107/rcub_technorep_609 .

TY  - JOUR
AU  - Prodanović, Radivoje
AU  - Jovanović, Slobodan
AU  - Vujčić, Zoran
PY  - 2001
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5343
AB  - Invertase was immobilized via its carbohydrate moiety. The immobilized enzyme has a specific activity of 5500 IU g(-1), with 45% activity yield on immobilization. In a packed bed reactor, 90% 2.5 M sucrose was converted at a flow rate of 4 bed volumes h(-1). The obtained specific productivity at 40 degreesC of 3 kg l(-1) h(-1) is the best one so far. Long-term stability was 290 days in 2.5 M sucrose at 40 degreesC and at a flow rate of 3 bed volumes h(-1).
PB  - Kluwer Academic Publ, Dordrecht
T2  - Biotechnology Letters
T1  - Immobilization of invertase on a new type of macroporous glycidyl methacrylate
EP  - 1174
IS  - 14
SP  - 1171
VL  - 23
DO  - 10.1023/A:1010560911400
ER  - 

@article{
author = "Prodanović, Radivoje and Jovanović, Slobodan and Vujčić, Zoran",
year = "2001",
abstract = "Invertase was immobilized via its carbohydrate moiety. The immobilized enzyme has a specific activity of 5500 IU g(-1), with 45% activity yield on immobilization. In a packed bed reactor, 90% 2.5 M sucrose was converted at a flow rate of 4 bed volumes h(-1). The obtained specific productivity at 40 degreesC of 3 kg l(-1) h(-1) is the best one so far. Long-term stability was 290 days in 2.5 M sucrose at 40 degreesC and at a flow rate of 3 bed volumes h(-1).",
publisher = "Kluwer Academic Publ, Dordrecht",
journal = "Biotechnology Letters",
title = "Immobilization of invertase on a new type of macroporous glycidyl methacrylate",
pages = "1174-1171",
number = "14",
volume = "23",
doi = "10.1023/A:1010560911400"
}

Prodanović, R., Jovanović, S.,& Vujčić, Z.. (2001). Immobilization of invertase on a new type of macroporous glycidyl methacrylate. in Biotechnology Letters
Kluwer Academic Publ, Dordrecht., 23(14), 1171-1174.
https://doi.org/10.1023/A:1010560911400

Prodanović R, Jovanović S, Vujčić Z. Immobilization of invertase on a new type of macroporous glycidyl methacrylate. in Biotechnology Letters. 2001;23(14):1171-1174.
doi:10.1023/A:1010560911400 .

Prodanović, Radivoje, Jovanović, Slobodan, Vujčić, Zoran, "Immobilization of invertase on a new type of macroporous glycidyl methacrylate" in Biotechnology Letters, 23, no. 14 (2001):1171-1174,
https://doi.org/10.1023/A:1010560911400 . .

TY  - JOUR
AU  - Jovanović, Slobodan M.
AU  - Stanković, Rade
AU  - Laninović, Verica
AU  - Nestorović, Gordana
AU  - Popović, Milica
AU  - Vidić, B.
AU  - Pavlović, Olivera
AU  - Krstajić, Nedeljko V.
AU  - Grgur, Branimir
AU  - Vojnović, Milan
AU  - Stanković, Slavka
PY  - 2000
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/336
AB  - In this article, the results of a study of the electrochemical polymerization of pyrrole and the chemical polymerization of pyrrole, aniline and 3-methyl thiophene initiated by FeCh are presented. The electrochemical properties of the synthesized electron conducting polymers (polypyrrole, polyaniline and poly 3-methyl thiophene) were measured. A new reactor for the synthesis of polypyrrole at a constant initiator concentration - K3Fe(CN)e - was developed and for the first time corresponding constants of the pyrrole polymerization reaction were determined. It has been proved that polypyrrole and polyaniline can be used as electrode materials for positive electrodes in lithium rechargeable power sources and that thin layers of these polymers can be successfully applied for the corrosion protection of iron.
AB  - U okviru ovoga rada prikazani su rezultati dobijeni izučavanjem elektrohemijski inicirane polimerizacije pirola i hemijski inicirane oksidativne polimerizacije pirola, anilina i 3-metiltiofena sa FeCb, kao i elektrohemijskih svojstava sintetizovanih elektroprovodnih polimera. Razvijen je novi reaktor za sintezu polipirola pri konstantnoj koncentraciji inicijatora - K3Fe(CN)6 i po prvi put određene odgovarajuće konstante polimerizacije pirola. Pokazano je da polipirol i polianilin mogu da se primenjuju kao elektrodni materijali za obnavljajuće izvore električne struje i da tanki slojevi ovih polimera mogu uspešno da se koriste za zaštitu gvožđa od korozije.
PB  - Association of Chemical Engineers of Serbia
T2  - Hemijska industrija
T1  - Synthesis and electrochemical properties of polypyrrole, polyaniline and poly-3-methyl thiophene
T1  - Sinteza i elektrohemijska svojstva polipirola, polianilina i poli-3-metiltiofena
EP  - 427
IS  - 10
SP  - 417
VL  - 54
UR  - https://hdl.handle.net/21.15107/rcub_technorep_336
ER  - 

@article{
author = "Jovanović, Slobodan M. and Stanković, Rade and Laninović, Verica and Nestorović, Gordana and Popović, Milica and Vidić, B. and Pavlović, Olivera and Krstajić, Nedeljko V. and Grgur, Branimir and Vojnović, Milan and Stanković, Slavka",
year = "2000",
abstract = "In this article, the results of a study of the electrochemical polymerization of pyrrole and the chemical polymerization of pyrrole, aniline and 3-methyl thiophene initiated by FeCh are presented. The electrochemical properties of the synthesized electron conducting polymers (polypyrrole, polyaniline and poly 3-methyl thiophene) were measured. A new reactor for the synthesis of polypyrrole at a constant initiator concentration - K3Fe(CN)e - was developed and for the first time corresponding constants of the pyrrole polymerization reaction were determined. It has been proved that polypyrrole and polyaniline can be used as electrode materials for positive electrodes in lithium rechargeable power sources and that thin layers of these polymers can be successfully applied for the corrosion protection of iron., U okviru ovoga rada prikazani su rezultati dobijeni izučavanjem elektrohemijski inicirane polimerizacije pirola i hemijski inicirane oksidativne polimerizacije pirola, anilina i 3-metiltiofena sa FeCb, kao i elektrohemijskih svojstava sintetizovanih elektroprovodnih polimera. Razvijen je novi reaktor za sintezu polipirola pri konstantnoj koncentraciji inicijatora - K3Fe(CN)6 i po prvi put određene odgovarajuće konstante polimerizacije pirola. Pokazano je da polipirol i polianilin mogu da se primenjuju kao elektrodni materijali za obnavljajuće izvore električne struje i da tanki slojevi ovih polimera mogu uspešno da se koriste za zaštitu gvožđa od korozije.",
publisher = "Association of Chemical Engineers of Serbia",
journal = "Hemijska industrija",
title = "Synthesis and electrochemical properties of polypyrrole, polyaniline and poly-3-methyl thiophene, Sinteza i elektrohemijska svojstva polipirola, polianilina i poli-3-metiltiofena",
pages = "427-417",
number = "10",
volume = "54",
url = "https://hdl.handle.net/21.15107/rcub_technorep_336"
}

Jovanović, S. M., Stanković, R., Laninović, V., Nestorović, G., Popović, M., Vidić, B., Pavlović, O., Krstajić, N. V., Grgur, B., Vojnović, M.,& Stanković, S.. (2000). Synthesis and electrochemical properties of polypyrrole, polyaniline and poly-3-methyl thiophene. in Hemijska industrija
Association of Chemical Engineers of Serbia., 54(10), 417-427.
https://hdl.handle.net/21.15107/rcub_technorep_336

Jovanović SM, Stanković R, Laninović V, Nestorović G, Popović M, Vidić B, Pavlović O, Krstajić NV, Grgur B, Vojnović M, Stanković S. Synthesis and electrochemical properties of polypyrrole, polyaniline and poly-3-methyl thiophene. in Hemijska industrija. 2000;54(10):417-427.
https://hdl.handle.net/21.15107/rcub_technorep_336 .

Jovanović, Slobodan M., Stanković, Rade, Laninović, Verica, Nestorović, Gordana, Popović, Milica, Vidić, B., Pavlović, Olivera, Krstajić, Nedeljko V., Grgur, Branimir, Vojnović, Milan, Stanković, Slavka, "Synthesis and electrochemical properties of polypyrrole, polyaniline and poly-3-methyl thiophene" in Hemijska industrija, 54, no. 10 (2000):417-427,
https://hdl.handle.net/21.15107/rcub_technorep_336 .

TY  - JOUR
AU  - Živković, Predrag M.
AU  - Jovanović, Slobodan
AU  - Popov, Konstantin I.
AU  - Ilić, Nenad
PY  - 2000
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5329
AB  - Aluminum as the base of offset printing plates should make good contact with wetting agents and the light sensitive layer and should be resistant to wear and cracking. In order to achieve this, the aluminum is roughened and eventually anodized. A thin, electrochemically deposited chromium layer is used as the non-printing element in bimetallic offset printing forms. Chromium shows excellent wettability and wear resistance. The possibility of chemical deposition of chromium on aluminum from an alkaline solution is examined in this paper. The presence of chromium was confirmed and measured by EDAX. A difference in the spectral reflection characteristic between chromium-treated and non-treated specimens was also detected. An influence of a chromium layer on an aluminum surface was examined by water drop spreading. Chromium-treated samples showed better wettability than non-treated samples, but they are less wettable than anodized samples.
PB  - Serbian Chemical Society
T2  - Journal of the Serbian Chemical Society
T1  - Modification of the aluminum for making offset printing plates
EP  - 938
IS  - 12
SP  - 935
VL  - 65
DO  - 10.2298/jsc0012935z
ER  - 

@article{
author = "Živković, Predrag M. and Jovanović, Slobodan and Popov, Konstantin I. and Ilić, Nenad",
year = "2000",
abstract = "Aluminum as the base of offset printing plates should make good contact with wetting agents and the light sensitive layer and should be resistant to wear and cracking. In order to achieve this, the aluminum is roughened and eventually anodized. A thin, electrochemically deposited chromium layer is used as the non-printing element in bimetallic offset printing forms. Chromium shows excellent wettability and wear resistance. The possibility of chemical deposition of chromium on aluminum from an alkaline solution is examined in this paper. The presence of chromium was confirmed and measured by EDAX. A difference in the spectral reflection characteristic between chromium-treated and non-treated specimens was also detected. An influence of a chromium layer on an aluminum surface was examined by water drop spreading. Chromium-treated samples showed better wettability than non-treated samples, but they are less wettable than anodized samples.",
publisher = "Serbian Chemical Society",
journal = "Journal of the Serbian Chemical Society",
title = "Modification of the aluminum for making offset printing plates",
pages = "938-935",
number = "12",
volume = "65",
doi = "10.2298/jsc0012935z"
}

Živković, P. M., Jovanović, S., Popov, K. I.,& Ilić, N.. (2000). Modification of the aluminum for making offset printing plates. in Journal of the Serbian Chemical Society
Serbian Chemical Society., 65(12), 935-938.
https://doi.org/10.2298/jsc0012935z

Živković PM, Jovanović S, Popov KI, Ilić N. Modification of the aluminum for making offset printing plates. in Journal of the Serbian Chemical Society. 2000;65(12):935-938.
doi:10.2298/jsc0012935z .

Živković, Predrag M., Jovanović, Slobodan, Popov, Konstantin I., Ilić, Nenad, "Modification of the aluminum for making offset printing plates" in Journal of the Serbian Chemical Society, 65, no. 12 (2000):935-938,
https://doi.org/10.2298/jsc0012935z . .