TY  - JOUR
AU  - Godiya, Chirag B.
AU  - Marcantoni, Enrico
AU  - Dunjić, Branko
AU  - Tomić, Miloš
AU  - Nikolić, Marija
AU  - Maletaškić, Jelena
AU  - Đonlagić, Jasna
PY  - 2021
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/15
AB  - Poly(methyl methacrylate) (PMMA)/clay nanocomposites (NCs) were prepared by suspension polymerization of methyl methacrylate in the presence of two different organoclays (Cloisite 30B, Cloisite 15A) with clay loading ranged from 0.5 to 5 wt%. Increase in molecular weight of the PMMA matrix with addition of the clay was revealed by gel permeation chromatography (GPC) and intrinsic viscosity measurements. As confirmed by X-ray diffraction (XRD), the NCs had an intercalated structure. The organoclays-MMA/PMMA compatibility was investigated by swelling tests and solubility parameter approach. Rheological behavior of PMMA NCs in molten state was analyzed through construction of master curves of complex viscosity, storage, and loss modulus by applying the time-temperature superposition procedure. Melt rheology, scanning electron microscopy (SEM), and UV/Vis spectroscopy results confirmed higher extent of clay dispersion in the NCs with Cloisite 30B. Compared to pure PMMA, all these NCs show increase of glass transition temperature as measured by DSC and improved thermal stability determined by thermogravimetric analysis (TGA). The results obtained by dynamic mechanical analysis showed that the storage modulus of the NCs was higher by incorporation of clay into the PMMA matrix, increasing as the amount of clay increased and that their mechanical performance was significantly enhanced.
PB  - Springer, New York
T2  - Polymer Bulletin
T1  - Effect of organoclay modifier structure on the viscoelastic and thermal properties of poly(methyl methacrylate)/organoclay nanocomposites
EP  - 2932
IS  - 6
SP  - 2911
VL  - 78
DO  - 10.1007/s00289-020-03248-7
ER  - 

@article{
author = "Godiya, Chirag B. and Marcantoni, Enrico and Dunjić, Branko and Tomić, Miloš and Nikolić, Marija and Maletaškić, Jelena and Đonlagić, Jasna",
year = "2021",
abstract = "Poly(methyl methacrylate) (PMMA)/clay nanocomposites (NCs) were prepared by suspension polymerization of methyl methacrylate in the presence of two different organoclays (Cloisite 30B, Cloisite 15A) with clay loading ranged from 0.5 to 5 wt%. Increase in molecular weight of the PMMA matrix with addition of the clay was revealed by gel permeation chromatography (GPC) and intrinsic viscosity measurements. As confirmed by X-ray diffraction (XRD), the NCs had an intercalated structure. The organoclays-MMA/PMMA compatibility was investigated by swelling tests and solubility parameter approach. Rheological behavior of PMMA NCs in molten state was analyzed through construction of master curves of complex viscosity, storage, and loss modulus by applying the time-temperature superposition procedure. Melt rheology, scanning electron microscopy (SEM), and UV/Vis spectroscopy results confirmed higher extent of clay dispersion in the NCs with Cloisite 30B. Compared to pure PMMA, all these NCs show increase of glass transition temperature as measured by DSC and improved thermal stability determined by thermogravimetric analysis (TGA). The results obtained by dynamic mechanical analysis showed that the storage modulus of the NCs was higher by incorporation of clay into the PMMA matrix, increasing as the amount of clay increased and that their mechanical performance was significantly enhanced.",
publisher = "Springer, New York",
journal = "Polymer Bulletin",
title = "Effect of organoclay modifier structure on the viscoelastic and thermal properties of poly(methyl methacrylate)/organoclay nanocomposites",
pages = "2932-2911",
number = "6",
volume = "78",
doi = "10.1007/s00289-020-03248-7"
}

Godiya, C. B., Marcantoni, E., Dunjić, B., Tomić, M., Nikolić, M., Maletaškić, J.,& Đonlagić, J.. (2021). Effect of organoclay modifier structure on the viscoelastic and thermal properties of poly(methyl methacrylate)/organoclay nanocomposites. in Polymer Bulletin
Springer, New York., 78(6), 2911-2932.
https://doi.org/10.1007/s00289-020-03248-7

Godiya CB, Marcantoni E, Dunjić B, Tomić M, Nikolić M, Maletaškić J, Đonlagić J. Effect of organoclay modifier structure on the viscoelastic and thermal properties of poly(methyl methacrylate)/organoclay nanocomposites. in Polymer Bulletin. 2021;78(6):2911-2932.
doi:10.1007/s00289-020-03248-7 .

Godiya, Chirag B., Marcantoni, Enrico, Dunjić, Branko, Tomić, Miloš, Nikolić, Marija, Maletaškić, Jelena, Đonlagić, Jasna, "Effect of organoclay modifier structure on the viscoelastic and thermal properties of poly(methyl methacrylate)/organoclay nanocomposites" in Polymer Bulletin, 78, no. 6 (2021):2911-2932,
https://doi.org/10.1007/s00289-020-03248-7 . .

TY  - JOUR
AU  - Tomić, Miloš
AU  - Dunjić, Branko
AU  - Nikolić, Marija
AU  - Trifković, Kata T.
AU  - Stanković, Nadežda
AU  - Pavlović, Vladimir B.
AU  - Bajat, Jelena
AU  - Đonlagić, Jasna
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4262
AB  - In the present study the commercial multifunctional fatty acid polyamidoamine (PAA) was for the first time simultaneously applied as a curing agent and clay modifier for epoxy/clay nanocomposites (NC) based on diglycidyl ether of bisphenol A. The montmorillonite (Cloisite (R) Na+) was modified with different quantities of partially and fully protonated polyamidoamine. The NCs with 0.5 wt% novel organoclay were prepared by solution intercalation method. The major aims of this paper are investigations of the effects of the composition of PAA modified clays on structure, mechanical, barrier properties and corrosion stability on steel substrates of NCs were studied. The thermogravimetric, flame photometry and X-ray diffraction analyses confirmed the efficient modification of clay surface with polyamidoamine, predominantly located within layers. The NCs exhibited an intercalated/exfoliated morphology and the presence of free amino groups and increased content of modifier facilitated dispersion of clay particles within the polymer matrix, as shown by electron microscopy techniques (SEM, TEM). Under an optimized loading of PAA (molar quantity of total amino groups per clay cation exchange capacity of 1.75), the layers in stacks were separated by 5.0 nm and high number of individual layers was present in NC. Clay modified by PAA with free amino groups showed increased storage modulus in the rubbery state, glass transition temperature of NCs, while dumping factor was decreased. The tensile test confirmed that introduction of flexible modifier on the epoxy/clay interface lead to increase in the ultimate tensile strenght and elongation at break by 31% and toughness up to 83%. The electrochemical impedance spectroscopy and permeability tests proved the pronounced barrier effect of clay particles against corrosive species and water vapor when high dispersion degree of clay in NC was achieved.
PB  - Elsevier Science Sa, Lausanne
T2  - Progress in Organic Coatings
T1  - Polyamidoamine as a clay modifier and curing agent in preparation of epoxy nanocomposites
EP  - 321
SP  - 311
VL  - 131
DO  - 10.1016/j.porgcoat.2019.02.037
ER  - 

@article{
author = "Tomić, Miloš and Dunjić, Branko and Nikolić, Marija and Trifković, Kata T. and Stanković, Nadežda and Pavlović, Vladimir B. and Bajat, Jelena and Đonlagić, Jasna",
year = "2019",
abstract = "In the present study the commercial multifunctional fatty acid polyamidoamine (PAA) was for the first time simultaneously applied as a curing agent and clay modifier for epoxy/clay nanocomposites (NC) based on diglycidyl ether of bisphenol A. The montmorillonite (Cloisite (R) Na+) was modified with different quantities of partially and fully protonated polyamidoamine. The NCs with 0.5 wt% novel organoclay were prepared by solution intercalation method. The major aims of this paper are investigations of the effects of the composition of PAA modified clays on structure, mechanical, barrier properties and corrosion stability on steel substrates of NCs were studied. The thermogravimetric, flame photometry and X-ray diffraction analyses confirmed the efficient modification of clay surface with polyamidoamine, predominantly located within layers. The NCs exhibited an intercalated/exfoliated morphology and the presence of free amino groups and increased content of modifier facilitated dispersion of clay particles within the polymer matrix, as shown by electron microscopy techniques (SEM, TEM). Under an optimized loading of PAA (molar quantity of total amino groups per clay cation exchange capacity of 1.75), the layers in stacks were separated by 5.0 nm and high number of individual layers was present in NC. Clay modified by PAA with free amino groups showed increased storage modulus in the rubbery state, glass transition temperature of NCs, while dumping factor was decreased. The tensile test confirmed that introduction of flexible modifier on the epoxy/clay interface lead to increase in the ultimate tensile strenght and elongation at break by 31% and toughness up to 83%. The electrochemical impedance spectroscopy and permeability tests proved the pronounced barrier effect of clay particles against corrosive species and water vapor when high dispersion degree of clay in NC was achieved.",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Progress in Organic Coatings",
title = "Polyamidoamine as a clay modifier and curing agent in preparation of epoxy nanocomposites",
pages = "321-311",
volume = "131",
doi = "10.1016/j.porgcoat.2019.02.037"
}

Tomić, M., Dunjić, B., Nikolić, M., Trifković, K. T., Stanković, N., Pavlović, V. B., Bajat, J.,& Đonlagić, J.. (2019). Polyamidoamine as a clay modifier and curing agent in preparation of epoxy nanocomposites. in Progress in Organic Coatings
Elsevier Science Sa, Lausanne., 131, 311-321.
https://doi.org/10.1016/j.porgcoat.2019.02.037

Tomić M, Dunjić B, Nikolić M, Trifković KT, Stanković N, Pavlović VB, Bajat J, Đonlagić J. Polyamidoamine as a clay modifier and curing agent in preparation of epoxy nanocomposites. in Progress in Organic Coatings. 2019;131:311-321.
doi:10.1016/j.porgcoat.2019.02.037 .

Tomić, Miloš, Dunjić, Branko, Nikolić, Marija, Trifković, Kata T., Stanković, Nadežda, Pavlović, Vladimir B., Bajat, Jelena, Đonlagić, Jasna, "Polyamidoamine as a clay modifier and curing agent in preparation of epoxy nanocomposites" in Progress in Organic Coatings, 131 (2019):311-321,
https://doi.org/10.1016/j.porgcoat.2019.02.037 . .

TY  - JOUR
AU  - Džunuzović, Enis
AU  - Ćirjaković, Stefan
AU  - Kovač, Tijana
AU  - Tomić, Miloš
AU  - Dapčević, Aleksandra
AU  - Džunuzović, Jasna
PY  - 2018
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3824
AB  - The surface of anatase TiO2 nanoparticles was modified with in situ synthesized imine, based on 3,4-dihydroxybenzaldehyde and octadecylamine. The modified TiO2 nanoparticles were investigated using FTIR and UV-Vis spectroscopy, which confirmed the formation of the charge transfer complex between imine and surface of TiO2 nanoparticles by the reaction of surface Ti atoms with hydroxyl groups of a modifying agent. TiO2 nanoparticles modified with imine were further applied as a filler for the preparation of epoxy based nanocomposites. Thermal and mechani­cal properties of the prepared nanocomposites were examined using the dynamic mechanical analysis, differential scanning calorimetry, thermogravimetric analysis and hardness measurements. The obtained results have shown that modified TiO2 nanoparticles have no significant influence on the glass transition temperature and that they slow down thermo-oxidative degradation of epoxy resin in the first stage and increase hardness of the crosslinked epoxy resin.
AB  - Površina nanočestica TiO2 modifikovana je 'in situ' sintetisanim iminom na bazi 3,4-dihidroksibenzaldehida i oktadecilamina. Modifikovane TiO2 nanočestice su ispitivane primenom FTIR i UV-Vis spektroskopije, čime je potvrđeno formiran­je 'charge transfer' kompleksa između imina i površine TiO2 nanočestica preko reakcije Ti atoma na površini čestica sa hidroksilnim grupama modifikatora. Modifikovane TiO2 nanočestice su zatim iskorišćene kao punioci za pripremu nanokompozita na bazi epoksidne smole. Termička i mehanička svojstva pripremljenih na­nokompozita su ispitana primenom dinamičko mehaničke analize, diferencijalne skenirajuće kalorimetrije, termogravimetrijske analize i ispitivanjem njihove tvrdoće. Dobijeni rezultati su pokazali da TiO2 nanočestice površinski modifikovane iminom ne utiču značajno na temperaturu ostakljivanja epoksidne smole, da usporavaju termooksidativnu degradaciju u prvom stupnju i da povećavaju tvrdoću umrežene epoksidne smole.
PB  - Univerzitet u Nišu - Tehnološki fakultet, Leskovac
T2  - Advanced Technologies
T1  - Titanium dioxide nanoparticles surface modified with imine as fillers for epoxy resin
T1  - Nanočestice titan-dioksida površinski modifikovane iminom kao punioci za epoksidnu smolu
EP  - 53
IS  - 2
SP  - 46
VL  - 7
DO  - 10.5937/SavTeh1802046D
ER  - 

@article{
author = "Džunuzović, Enis and Ćirjaković, Stefan and Kovač, Tijana and Tomić, Miloš and Dapčević, Aleksandra and Džunuzović, Jasna",
year = "2018",
abstract = "The surface of anatase TiO2 nanoparticles was modified with in situ synthesized imine, based on 3,4-dihydroxybenzaldehyde and octadecylamine. The modified TiO2 nanoparticles were investigated using FTIR and UV-Vis spectroscopy, which confirmed the formation of the charge transfer complex between imine and surface of TiO2 nanoparticles by the reaction of surface Ti atoms with hydroxyl groups of a modifying agent. TiO2 nanoparticles modified with imine were further applied as a filler for the preparation of epoxy based nanocomposites. Thermal and mechani­cal properties of the prepared nanocomposites were examined using the dynamic mechanical analysis, differential scanning calorimetry, thermogravimetric analysis and hardness measurements. The obtained results have shown that modified TiO2 nanoparticles have no significant influence on the glass transition temperature and that they slow down thermo-oxidative degradation of epoxy resin in the first stage and increase hardness of the crosslinked epoxy resin., Površina nanočestica TiO2 modifikovana je 'in situ' sintetisanim iminom na bazi 3,4-dihidroksibenzaldehida i oktadecilamina. Modifikovane TiO2 nanočestice su ispitivane primenom FTIR i UV-Vis spektroskopije, čime je potvrđeno formiran­je 'charge transfer' kompleksa između imina i površine TiO2 nanočestica preko reakcije Ti atoma na površini čestica sa hidroksilnim grupama modifikatora. Modifikovane TiO2 nanočestice su zatim iskorišćene kao punioci za pripremu nanokompozita na bazi epoksidne smole. Termička i mehanička svojstva pripremljenih na­nokompozita su ispitana primenom dinamičko mehaničke analize, diferencijalne skenirajuće kalorimetrije, termogravimetrijske analize i ispitivanjem njihove tvrdoće. Dobijeni rezultati su pokazali da TiO2 nanočestice površinski modifikovane iminom ne utiču značajno na temperaturu ostakljivanja epoksidne smole, da usporavaju termooksidativnu degradaciju u prvom stupnju i da povećavaju tvrdoću umrežene epoksidne smole.",
publisher = "Univerzitet u Nišu - Tehnološki fakultet, Leskovac",
journal = "Advanced Technologies",
title = "Titanium dioxide nanoparticles surface modified with imine as fillers for epoxy resin, Nanočestice titan-dioksida površinski modifikovane iminom kao punioci za epoksidnu smolu",
pages = "53-46",
number = "2",
volume = "7",
doi = "10.5937/SavTeh1802046D"
}

Džunuzović, E., Ćirjaković, S., Kovač, T., Tomić, M., Dapčević, A.,& Džunuzović, J.. (2018). Titanium dioxide nanoparticles surface modified with imine as fillers for epoxy resin. in Advanced Technologies
Univerzitet u Nišu - Tehnološki fakultet, Leskovac., 7(2), 46-53.
https://doi.org/10.5937/SavTeh1802046D

Džunuzović E, Ćirjaković S, Kovač T, Tomić M, Dapčević A, Džunuzović J. Titanium dioxide nanoparticles surface modified with imine as fillers for epoxy resin. in Advanced Technologies. 2018;7(2):46-53.
doi:10.5937/SavTeh1802046D .

Džunuzović, Enis, Ćirjaković, Stefan, Kovač, Tijana, Tomić, Miloš, Dapčević, Aleksandra, Džunuzović, Jasna, "Titanium dioxide nanoparticles surface modified with imine as fillers for epoxy resin" in Advanced Technologies, 7, no. 2 (2018):46-53,
https://doi.org/10.5937/SavTeh1802046D . .

TY  - JOUR
AU  - Tomić, Miloš
AU  - Dunjić, Branko
AU  - Nikolić, Marija
AU  - Maletaškić, Jelena
AU  - Pavlović, Vladimir B.
AU  - Bajat, Jelena
AU  - Đonlagić, Jasna
PY  - 2018
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3985
AB  - The major aims of this paper are the investigation of the effects of the mixing procedure and the montmorillonite (Mt) surface modification on the structure (optical microscopy, XRD, TEM, SEM), rheological, mechanical properties (DMA, tensile test) and corrosion stability (electrochemical impedance spectroscopy) of clay mineral/epoxy nanocomposite (CPN). Two series of CPN samples were prepared based on diglycidyl ether of bisphenol A (DGEBA) and polyamidoamine curing agent with three organophilic Mt and sodium-montmorillonite (1 wt%). Mt were mixed with DGEBA solution in the powder (direct mixing) and in the form of dispersions, preswollen in a commercial coating thinner (solution intercalation). The commercial Mt (Cloisite 30B) modified by quaternary alkylammonium ions bearing hydroxyl groups and especially Mt functionalized by primary (HDA(+)-Mt) alkylammonium ions, at loadings close to cation exchange capacity (CRC), were significantly swollen by thinner and further uniformly dispersed into CPN. Meanwhile, low gel volumes in thinner were found for more hydrophobic Mt (Cloisite 15A). The compatibility of Mt with solvents was well described by solubility and Flory-Huggins interaction parameters. In contrast to the direct incorporation of Mt powders in CPN, swelling enhanced intercalation of epoxy matrix into Mt, and for HDA(+)-Mt based CPN interlayer spacing reached 4.4 nm. The usage of HDA(+)-Mt organoclay and solution intercalation procedure provided the highest enhancement in rheological parameters (G', G", of Mt/epoxy dispersions and glassy storage modulus, Young's modulus and barrier properties of cured CPN.
PB  - Elsevier Science Bv, Amsterdam
T2  - Applied Clay Science
T1  - Dispersion efficiency of montmorillonites in epoxy nanocomposites using solution intercalation and direct mixing methods
EP  - 63
SP  - 52
VL  - 154
DO  - 10.1016/j.clay.2017.12.047
ER  - 

@article{
author = "Tomić, Miloš and Dunjić, Branko and Nikolić, Marija and Maletaškić, Jelena and Pavlović, Vladimir B. and Bajat, Jelena and Đonlagić, Jasna",
year = "2018",
abstract = "The major aims of this paper are the investigation of the effects of the mixing procedure and the montmorillonite (Mt) surface modification on the structure (optical microscopy, XRD, TEM, SEM), rheological, mechanical properties (DMA, tensile test) and corrosion stability (electrochemical impedance spectroscopy) of clay mineral/epoxy nanocomposite (CPN). Two series of CPN samples were prepared based on diglycidyl ether of bisphenol A (DGEBA) and polyamidoamine curing agent with three organophilic Mt and sodium-montmorillonite (1 wt%). Mt were mixed with DGEBA solution in the powder (direct mixing) and in the form of dispersions, preswollen in a commercial coating thinner (solution intercalation). The commercial Mt (Cloisite 30B) modified by quaternary alkylammonium ions bearing hydroxyl groups and especially Mt functionalized by primary (HDA(+)-Mt) alkylammonium ions, at loadings close to cation exchange capacity (CRC), were significantly swollen by thinner and further uniformly dispersed into CPN. Meanwhile, low gel volumes in thinner were found for more hydrophobic Mt (Cloisite 15A). The compatibility of Mt with solvents was well described by solubility and Flory-Huggins interaction parameters. In contrast to the direct incorporation of Mt powders in CPN, swelling enhanced intercalation of epoxy matrix into Mt, and for HDA(+)-Mt based CPN interlayer spacing reached 4.4 nm. The usage of HDA(+)-Mt organoclay and solution intercalation procedure provided the highest enhancement in rheological parameters (G', G", of Mt/epoxy dispersions and glassy storage modulus, Young's modulus and barrier properties of cured CPN.",
publisher = "Elsevier Science Bv, Amsterdam",
journal = "Applied Clay Science",
title = "Dispersion efficiency of montmorillonites in epoxy nanocomposites using solution intercalation and direct mixing methods",
pages = "63-52",
volume = "154",
doi = "10.1016/j.clay.2017.12.047"
}

Tomić, M., Dunjić, B., Nikolić, M., Maletaškić, J., Pavlović, V. B., Bajat, J.,& Đonlagić, J.. (2018). Dispersion efficiency of montmorillonites in epoxy nanocomposites using solution intercalation and direct mixing methods. in Applied Clay Science
Elsevier Science Bv, Amsterdam., 154, 52-63.
https://doi.org/10.1016/j.clay.2017.12.047

Tomić M, Dunjić B, Nikolić M, Maletaškić J, Pavlović VB, Bajat J, Đonlagić J. Dispersion efficiency of montmorillonites in epoxy nanocomposites using solution intercalation and direct mixing methods. in Applied Clay Science. 2018;154:52-63.
doi:10.1016/j.clay.2017.12.047 .

Tomić, Miloš, Dunjić, Branko, Nikolić, Marija, Maletaškić, Jelena, Pavlović, Vladimir B., Bajat, Jelena, Đonlagić, Jasna, "Dispersion efficiency of montmorillonites in epoxy nanocomposites using solution intercalation and direct mixing methods" in Applied Clay Science, 154 (2018):52-63,
https://doi.org/10.1016/j.clay.2017.12.047 . .

TY  - JOUR
AU  - Davidović, Slađana
AU  - Miljković, Miona
AU  - Tomić, Miloš
AU  - Gordić, Milan V.
AU  - Nešić, Aleksandra
AU  - Dimitrijević, Suzana
PY  - 2018
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4017
AB  - The aim of this study was to develop dextran-based edible films plasticized by sorbitol. In order to optimise the film-forming formulation, response surface methodology was used. The influence of dextran and sorbitol concentration on the mechanical and water vapour barrier properties of obtained films was investigated. The results showed that both parameters exhibited significant effect on the water vapour permeability of a film. Both dextran and sorbitol concentration had significant influence on tensile strength and elongation at break, whereas only sorbitol concentration had significant effect on Young's modulus. After optimisation by desirability approach, it was found that a film made of 3.40 wt% of dextran and 20.43 wt% of sorbitol showed the lowest water vapour permeability and the highest tensile strength and elasticity.
PB  - Elsevier Sci Ltd, Oxford
T2  - Carbohydrate Polymers
T1  - Response surface methodology for optimisation of edible coatings based on dextran from Leuconostoc mesenteroides T3
EP  - 213
SP  - 207
VL  - 184
DO  - 10.1016/j.carbpol.2017.12.061
ER  - 

@article{
author = "Davidović, Slađana and Miljković, Miona and Tomić, Miloš and Gordić, Milan V. and Nešić, Aleksandra and Dimitrijević, Suzana",
year = "2018",
abstract = "The aim of this study was to develop dextran-based edible films plasticized by sorbitol. In order to optimise the film-forming formulation, response surface methodology was used. The influence of dextran and sorbitol concentration on the mechanical and water vapour barrier properties of obtained films was investigated. The results showed that both parameters exhibited significant effect on the water vapour permeability of a film. Both dextran and sorbitol concentration had significant influence on tensile strength and elongation at break, whereas only sorbitol concentration had significant effect on Young's modulus. After optimisation by desirability approach, it was found that a film made of 3.40 wt% of dextran and 20.43 wt% of sorbitol showed the lowest water vapour permeability and the highest tensile strength and elasticity.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Carbohydrate Polymers",
title = "Response surface methodology for optimisation of edible coatings based on dextran from Leuconostoc mesenteroides T3",
pages = "213-207",
volume = "184",
doi = "10.1016/j.carbpol.2017.12.061"
}

Davidović, S., Miljković, M., Tomić, M., Gordić, M. V., Nešić, A.,& Dimitrijević, S.. (2018). Response surface methodology for optimisation of edible coatings based on dextran from Leuconostoc mesenteroides T3. in Carbohydrate Polymers
Elsevier Sci Ltd, Oxford., 184, 207-213.
https://doi.org/10.1016/j.carbpol.2017.12.061

Davidović S, Miljković M, Tomić M, Gordić MV, Nešić A, Dimitrijević S. Response surface methodology for optimisation of edible coatings based on dextran from Leuconostoc mesenteroides T3. in Carbohydrate Polymers. 2018;184:207-213.
doi:10.1016/j.carbpol.2017.12.061 .

Davidović, Slađana, Miljković, Miona, Tomić, Miloš, Gordić, Milan V., Nešić, Aleksandra, Dimitrijević, Suzana, "Response surface methodology for optimisation of edible coatings based on dextran from Leuconostoc mesenteroides T3" in Carbohydrate Polymers, 184 (2018):207-213,
https://doi.org/10.1016/j.carbpol.2017.12.061 . .

TY  - JOUR
AU  - Kovačević, Tihomir
AU  - Rusmirović, Jelena
AU  - Tomić, Nataša
AU  - Marinović-Cincović, Milena
AU  - Kamberović, Željko
AU  - Tomić, Miloš
AU  - Marinković, Aleksandar
PY  - 2017
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3576
AB  - Influence of the addition of three different non-metallic fractions (NMF), obtained by processing of printed circuit boards (PCBs), on the mechanical and thermal properties of unsaturated polyester resin (UPR) based composites were studied in this paper. UPR, based on products of PET depolymerization, and NMF were characterized using FTIR, NMR, optical microscopy and SEM/EDS analysis. Cross-linking density (v), storage modulus (G'), damping factor (tan delta) and glass transition temperature (T-g) of the composites were determined from the DMA testing. Tensile (sigma(t)) and flexural (sigma(f)) strength, and micro Vickers hardness indicated good composite performance under static load. Thermal and flame resistant properties were analyzed by TGA/DTG and UL-94 flammability test whereby V-2 category of appropriate composite was achieved. Composites with satisfactory mechanical and thermal properties reflected synergetic effect of constituents obtained from waste materials.
PB  - Elsevier Sci Ltd, Oxford
T2  - Composites Part B-Engineering
T1  - New composites based on waste PET and non-metallic fraction from waste printed circuit boards: Mechanical and thermal properties
EP  - 14
SP  - 1
VL  - 127
DO  - 10.1016/j.compositesb.2017.06.020
ER  - 

@article{
author = "Kovačević, Tihomir and Rusmirović, Jelena and Tomić, Nataša and Marinović-Cincović, Milena and Kamberović, Željko and Tomić, Miloš and Marinković, Aleksandar",
year = "2017",
abstract = "Influence of the addition of three different non-metallic fractions (NMF), obtained by processing of printed circuit boards (PCBs), on the mechanical and thermal properties of unsaturated polyester resin (UPR) based composites were studied in this paper. UPR, based on products of PET depolymerization, and NMF were characterized using FTIR, NMR, optical microscopy and SEM/EDS analysis. Cross-linking density (v), storage modulus (G'), damping factor (tan delta) and glass transition temperature (T-g) of the composites were determined from the DMA testing. Tensile (sigma(t)) and flexural (sigma(f)) strength, and micro Vickers hardness indicated good composite performance under static load. Thermal and flame resistant properties were analyzed by TGA/DTG and UL-94 flammability test whereby V-2 category of appropriate composite was achieved. Composites with satisfactory mechanical and thermal properties reflected synergetic effect of constituents obtained from waste materials.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Composites Part B-Engineering",
title = "New composites based on waste PET and non-metallic fraction from waste printed circuit boards: Mechanical and thermal properties",
pages = "14-1",
volume = "127",
doi = "10.1016/j.compositesb.2017.06.020"
}

Kovačević, T., Rusmirović, J., Tomić, N., Marinović-Cincović, M., Kamberović, Ž., Tomić, M.,& Marinković, A.. (2017). New composites based on waste PET and non-metallic fraction from waste printed circuit boards: Mechanical and thermal properties. in Composites Part B-Engineering
Elsevier Sci Ltd, Oxford., 127, 1-14.
https://doi.org/10.1016/j.compositesb.2017.06.020

Kovačević T, Rusmirović J, Tomić N, Marinović-Cincović M, Kamberović Ž, Tomić M, Marinković A. New composites based on waste PET and non-metallic fraction from waste printed circuit boards: Mechanical and thermal properties. in Composites Part B-Engineering. 2017;127:1-14.
doi:10.1016/j.compositesb.2017.06.020 .

Kovačević, Tihomir, Rusmirović, Jelena, Tomić, Nataša, Marinović-Cincović, Milena, Kamberović, Željko, Tomić, Miloš, Marinković, Aleksandar, "New composites based on waste PET and non-metallic fraction from waste printed circuit boards: Mechanical and thermal properties" in Composites Part B-Engineering, 127 (2017):1-14,
https://doi.org/10.1016/j.compositesb.2017.06.020 . .

TY  - JOUR
AU  - Rusmirović, Jelena
AU  - Trifković, Kata T.
AU  - Bugarski, Branko
AU  - Pavlović, Vladimir B.
AU  - Džunuzović, Jasna
AU  - Tomić, Miloš
AU  - Marinković, Aleksandar
PY  - 2016
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3396
AB  - Influences of the vinyl modified nanosilica Aerosil (R) 380, i.e., vinyl and methacryloyl silane coupling agent and linseed oil fatty acids (BD) reactive residues, on the mechanical properties of the unsaturated polyester resins (UPes) based nanocomposites, was studied. The polycondensation of maleic anhydride and products of poly(ethylene terephthalate) (PET) depolymerization with propylene glycol, with and without separation of ethylene glycol, yields UPe1 and UPe2 resin, respectively. The hydroxyl terminated PET depolymerization products (glycolyzates) and UPes were characterized by acid and hydroxyl values, Fourier Transform Infrared (FTIR) and nuclear magneti resonance (NMR) spectroscopies. Transmission electron microscopy (TEM) confirmed that silica nanoparticles formed domains of aggregates in the polymer matrix. An increase from 195 to 247% of stress at break (sigma(b)), and from 109 to 131% of impact strength (sigma(i)) of UPes based nanocomposites was obtained for 1 wt% addition of vinyl modified silica. Flexural strength (sigma(f)) increase from 106 to 156% for both UPes based nanocomposites with 1 wt% addition of BD modified silica. Cross-linking density (nu), storage modulus (G'), tan delta and T-g of the nanocomposite were determined from the dynamic mechanical testing and discussed in relation to the structure of silica modification.
PB  - Budapest Univ Technol & Econ, Budapest
T2  - Express Polymer Letters
T1  - High performance unsaturated polyester based nanocomposites: Effect of vinyl modified nanosilica on mechanical properties
EP  - 159
IS  - 2
SP  - 139
VL  - 10
DO  - 10.3144/expresspolymlett.2016.14
ER  - 

@article{
author = "Rusmirović, Jelena and Trifković, Kata T. and Bugarski, Branko and Pavlović, Vladimir B. and Džunuzović, Jasna and Tomić, Miloš and Marinković, Aleksandar",
year = "2016",
abstract = "Influences of the vinyl modified nanosilica Aerosil (R) 380, i.e., vinyl and methacryloyl silane coupling agent and linseed oil fatty acids (BD) reactive residues, on the mechanical properties of the unsaturated polyester resins (UPes) based nanocomposites, was studied. The polycondensation of maleic anhydride and products of poly(ethylene terephthalate) (PET) depolymerization with propylene glycol, with and without separation of ethylene glycol, yields UPe1 and UPe2 resin, respectively. The hydroxyl terminated PET depolymerization products (glycolyzates) and UPes were characterized by acid and hydroxyl values, Fourier Transform Infrared (FTIR) and nuclear magneti resonance (NMR) spectroscopies. Transmission electron microscopy (TEM) confirmed that silica nanoparticles formed domains of aggregates in the polymer matrix. An increase from 195 to 247% of stress at break (sigma(b)), and from 109 to 131% of impact strength (sigma(i)) of UPes based nanocomposites was obtained for 1 wt% addition of vinyl modified silica. Flexural strength (sigma(f)) increase from 106 to 156% for both UPes based nanocomposites with 1 wt% addition of BD modified silica. Cross-linking density (nu), storage modulus (G'), tan delta and T-g of the nanocomposite were determined from the dynamic mechanical testing and discussed in relation to the structure of silica modification.",
publisher = "Budapest Univ Technol & Econ, Budapest",
journal = "Express Polymer Letters",
title = "High performance unsaturated polyester based nanocomposites: Effect of vinyl modified nanosilica on mechanical properties",
pages = "159-139",
number = "2",
volume = "10",
doi = "10.3144/expresspolymlett.2016.14"
}

Rusmirović, J., Trifković, K. T., Bugarski, B., Pavlović, V. B., Džunuzović, J., Tomić, M.,& Marinković, A.. (2016). High performance unsaturated polyester based nanocomposites: Effect of vinyl modified nanosilica on mechanical properties. in Express Polymer Letters
Budapest Univ Technol & Econ, Budapest., 10(2), 139-159.
https://doi.org/10.3144/expresspolymlett.2016.14

Rusmirović J, Trifković KT, Bugarski B, Pavlović VB, Džunuzović J, Tomić M, Marinković A. High performance unsaturated polyester based nanocomposites: Effect of vinyl modified nanosilica on mechanical properties. in Express Polymer Letters. 2016;10(2):139-159.
doi:10.3144/expresspolymlett.2016.14 .

Rusmirović, Jelena, Trifković, Kata T., Bugarski, Branko, Pavlović, Vladimir B., Džunuzović, Jasna, Tomić, Miloš, Marinković, Aleksandar, "High performance unsaturated polyester based nanocomposites: Effect of vinyl modified nanosilica on mechanical properties" in Express Polymer Letters, 10, no. 2 (2016):139-159,
https://doi.org/10.3144/expresspolymlett.2016.14 . .

TY  - JOUR
AU  - Dikić, Jelena
AU  - Hrenović, Jasna
AU  - Goić-Barisić, Ivana
AU  - Tomić, Miloš
AU  - Đonlagić, Jasna
AU  - Rajić, Nevenka
PY  - 2014
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2742
AB  - Due to their susceptibility to bacterial biofilm formation, commercial tubes for medical use are one of the main sources of hospital infections with Acinetobacter baumannii. The anti-biofouling activity of novel composites against the clinical isolate of the multi-drug resistant A. baumannii is reported here. The composites were prepared by addition of micronised silver-exchanged natural zeolite (Ag-NZ) into poly(vinyl chloride) (PVC), followed by coating of the composites with D-Tyrosine (D-Tyr). The Ag-NZ composites (containing 1-15 wt% of Ag-NZ) coated with D-Tyr (Ag-NZ-Tyr) showed a bactericidal effect (100% or a 6.9 log CFU reduction) towards immobilised bacterial cells. The uncoated Ag-NZ composites showed a reduction of up to 70% (4.4 log CFU) of immobilised bacteria in comparison with the original PVC. Rheological testing of the composites revealed that the addition of Ag-NZ slightly affected processability and formability of the PVC and increased the elasticity of the polymer matrix.
PB  - Taylor & Francis Ltd, Abingdon
T2  - Biofouling
T1  - Synergistic anti-biofouling effect of Ag-exchanged zeolite and D-Tyrosine on PVC composite against the clinical isolate of Acinetobacter baumannii
EP  - 973
IS  - 8
SP  - 965
VL  - 30
DO  - 10.1080/08927014.2014.959941
ER  - 

@article{
author = "Dikić, Jelena and Hrenović, Jasna and Goić-Barisić, Ivana and Tomić, Miloš and Đonlagić, Jasna and Rajić, Nevenka",
year = "2014",
abstract = "Due to their susceptibility to bacterial biofilm formation, commercial tubes for medical use are one of the main sources of hospital infections with Acinetobacter baumannii. The anti-biofouling activity of novel composites against the clinical isolate of the multi-drug resistant A. baumannii is reported here. The composites were prepared by addition of micronised silver-exchanged natural zeolite (Ag-NZ) into poly(vinyl chloride) (PVC), followed by coating of the composites with D-Tyrosine (D-Tyr). The Ag-NZ composites (containing 1-15 wt% of Ag-NZ) coated with D-Tyr (Ag-NZ-Tyr) showed a bactericidal effect (100% or a 6.9 log CFU reduction) towards immobilised bacterial cells. The uncoated Ag-NZ composites showed a reduction of up to 70% (4.4 log CFU) of immobilised bacteria in comparison with the original PVC. Rheological testing of the composites revealed that the addition of Ag-NZ slightly affected processability and formability of the PVC and increased the elasticity of the polymer matrix.",
publisher = "Taylor & Francis Ltd, Abingdon",
journal = "Biofouling",
title = "Synergistic anti-biofouling effect of Ag-exchanged zeolite and D-Tyrosine on PVC composite against the clinical isolate of Acinetobacter baumannii",
pages = "973-965",
number = "8",
volume = "30",
doi = "10.1080/08927014.2014.959941"
}

Dikić, J., Hrenović, J., Goić-Barisić, I., Tomić, M., Đonlagić, J.,& Rajić, N.. (2014). Synergistic anti-biofouling effect of Ag-exchanged zeolite and D-Tyrosine on PVC composite against the clinical isolate of Acinetobacter baumannii. in Biofouling
Taylor & Francis Ltd, Abingdon., 30(8), 965-973.
https://doi.org/10.1080/08927014.2014.959941

Dikić J, Hrenović J, Goić-Barisić I, Tomić M, Đonlagić J, Rajić N. Synergistic anti-biofouling effect of Ag-exchanged zeolite and D-Tyrosine on PVC composite against the clinical isolate of Acinetobacter baumannii. in Biofouling. 2014;30(8):965-973.
doi:10.1080/08927014.2014.959941 .

Dikić, Jelena, Hrenović, Jasna, Goić-Barisić, Ivana, Tomić, Miloš, Đonlagić, Jasna, Rajić, Nevenka, "Synergistic anti-biofouling effect of Ag-exchanged zeolite and D-Tyrosine on PVC composite against the clinical isolate of Acinetobacter baumannii" in Biofouling, 30, no. 8 (2014):965-973,
https://doi.org/10.1080/08927014.2014.959941 . .

TY  - JOUR
AU  - Kojović, Aleksandar
AU  - Uskoković, Petar
AU  - Aleksić, Radoslav
AU  - Mitraković, Dragan
AU  - Živković, Irena
AU  - Tomić, Miloš
AU  - Brajović, Ljiljana
AU  - Milinković, Stevan
PY  - 2005
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/748
AB  - The paper deals with the research in applying optical fibres (OF) as intensity-based sensors in real-time damage detection of laminar composite materials. For experimental purposes, thermoplastic laminar composite materials with embedded optical fibres were made. Manufactured specimens of aramid fiber/poly(vinyl butyral) with embedded optical fibres were subjected to various loads: static loading by indentation on the adapted tensile testing machine, low blow on Charpy pendulum, and ballistic impact by standard weaponry and ammunition. Initiation of damage and fracture during laminate testing was observed from the intensity drop of the light signal transmitted through the optical fibre. Experimental results confirmed that optical fibres could be applied as intensity sensors in real-time monitoring of structural changes in thermoplastic laminar composite materials.
AB  - Cilj ovoga rada je istraživanje primene optičkih vlakana (OV) kao intenzitetnih senzora za detekciju oštećenja laminarnih kompozitnih materijala u realnom vremenu. Za eksperimentalne potrebe su izraženi termoplastični laminarni kompozitni materijali sa ugrađenim optičkim vlaknima. Izračeni uzorci aramidno vlakno/poli(vinil-butiral) sa ugrađenim optičkim vlaknima izlagani su različitim vrstama opterećenja: statikom opterećenju utiskivanjem na adaptiranoj kidalici, udarima niske energije Šarpijevim klatnom i balistikim udarima standardnim oružjem i municijom. Inicijacija oštećenja i loma laminata tokom ispitivanja su detektovani praćenjem pada intenziteta svetlosnog signala propuštenog kroz optika vlakna. Rezultati eksperimenta su potvrdili da se optička vlakna mogu koristiti u toku rada (u realnom vremenu) kao intenzitetni senzori za detekciju strukturnih promena u laminarnim kompozitnim materijalima.
PB  - Society for Structural Integrity and Life, Institute for Material Testing
T2  - Integritet i vek konstrukcija
T1  - Damage monitoring of composite laminates by means of intensity based fiberoptic sensors
T1  - Praćenje oštećenja kompozitnih laminata pomoću fiberoptičkih senzora intenzitetnog tipa
EP  - 30
IS  - 1
SP  - 19
VL  - 5
UR  - https://hdl.handle.net/21.15107/rcub_grafar_84
ER  - 

@article{
author = "Kojović, Aleksandar and Uskoković, Petar and Aleksić, Radoslav and Mitraković, Dragan and Živković, Irena and Tomić, Miloš and Brajović, Ljiljana and Milinković, Stevan",
year = "2005",
abstract = "The paper deals with the research in applying optical fibres (OF) as intensity-based sensors in real-time damage detection of laminar composite materials. For experimental purposes, thermoplastic laminar composite materials with embedded optical fibres were made. Manufactured specimens of aramid fiber/poly(vinyl butyral) with embedded optical fibres were subjected to various loads: static loading by indentation on the adapted tensile testing machine, low blow on Charpy pendulum, and ballistic impact by standard weaponry and ammunition. Initiation of damage and fracture during laminate testing was observed from the intensity drop of the light signal transmitted through the optical fibre. Experimental results confirmed that optical fibres could be applied as intensity sensors in real-time monitoring of structural changes in thermoplastic laminar composite materials., Cilj ovoga rada je istraživanje primene optičkih vlakana (OV) kao intenzitetnih senzora za detekciju oštećenja laminarnih kompozitnih materijala u realnom vremenu. Za eksperimentalne potrebe su izraženi termoplastični laminarni kompozitni materijali sa ugrađenim optičkim vlaknima. Izračeni uzorci aramidno vlakno/poli(vinil-butiral) sa ugrađenim optičkim vlaknima izlagani su različitim vrstama opterećenja: statikom opterećenju utiskivanjem na adaptiranoj kidalici, udarima niske energije Šarpijevim klatnom i balistikim udarima standardnim oružjem i municijom. Inicijacija oštećenja i loma laminata tokom ispitivanja su detektovani praćenjem pada intenziteta svetlosnog signala propuštenog kroz optika vlakna. Rezultati eksperimenta su potvrdili da se optička vlakna mogu koristiti u toku rada (u realnom vremenu) kao intenzitetni senzori za detekciju strukturnih promena u laminarnim kompozitnim materijalima.",
publisher = "Society for Structural Integrity and Life, Institute for Material Testing",
journal = "Integritet i vek konstrukcija",
title = "Damage monitoring of composite laminates by means of intensity based fiberoptic sensors, Praćenje oštećenja kompozitnih laminata pomoću fiberoptičkih senzora intenzitetnog tipa",
pages = "30-19",
number = "1",
volume = "5",
url = "https://hdl.handle.net/21.15107/rcub_grafar_84"
}

Kojović, A., Uskoković, P., Aleksić, R., Mitraković, D., Živković, I., Tomić, M., Brajović, L.,& Milinković, S.. (2005). Damage monitoring of composite laminates by means of intensity based fiberoptic sensors. in Integritet i vek konstrukcija
Society for Structural Integrity and Life, Institute for Material Testing., 5(1), 19-30.
https://hdl.handle.net/21.15107/rcub_grafar_84

Kojović A, Uskoković P, Aleksić R, Mitraković D, Živković I, Tomić M, Brajović L, Milinković S. Damage monitoring of composite laminates by means of intensity based fiberoptic sensors. in Integritet i vek konstrukcija. 2005;5(1):19-30.
https://hdl.handle.net/21.15107/rcub_grafar_84 .

Kojović, Aleksandar, Uskoković, Petar, Aleksić, Radoslav, Mitraković, Dragan, Živković, Irena, Tomić, Miloš, Brajović, Ljiljana, Milinković, Stevan, "Damage monitoring of composite laminates by means of intensity based fiberoptic sensors" in Integritet i vek konstrukcija, 5, no. 1 (2005):19-30,
https://hdl.handle.net/21.15107/rcub_grafar_84 .