TY  - JOUR
AU  - Đurović, Sanja
AU  - Dragičević, Vesna
AU  - Waisi, Hadi
AU  - Pagnacco, Maja C.
AU  - Luković, Nevena
AU  - Knežević-Jugović, Zorica
AU  - Nikolić, Bogdan
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4124
AB  - Polyphenols present in different plant cell organelles increase the resistance of plants to various types of environmental stresses. We investigated the possibility of increasing the content of bioactive compounds in the seed of yellow soybean variety Laura. The soybean was treated during vegetation with five products based on plant extracts, on the assumption of enrichment of plants with various nutrients. Soybean flour extracts were screened spectrophotometrically for total phenolic content and antioxidant activity. The antioxidant activity was evaluated using three methods. The content of phenolic acids was determined by HPLC, and the raw protein content was estimated by the Kjeldahl method. Depending on the treatment, variations in the quantity of individual phenolic acids with up to 90% higher concentration as compared to the control were observed. Controlled usage of certain plant extracts can increase the concentration of the target group of bioactive compounds in the samples. The synergistic effect of proteins and phenolic compounds on the antioxidant activity of extracts was detected. The results of this study are not only important from the aspect of plant resistance to various types of stress, but also when considering soybean as a functional food.
PB  - Srpsko biološko društvo, Beograd, i dr.
T2  - Archives of Biological Sciences
T1  - Enhancement of antioxidant activity and bioactive compound contents in yellow soybean by plant-extract-based products
EP  - 434
IS  - 3
SP  - 425
VL  - 71
DO  - 10.2298/ABS190123024D
ER  - 

@article{
author = "Đurović, Sanja and Dragičević, Vesna and Waisi, Hadi and Pagnacco, Maja C. and Luković, Nevena and Knežević-Jugović, Zorica and Nikolić, Bogdan",
year = "2019",
abstract = "Polyphenols present in different plant cell organelles increase the resistance of plants to various types of environmental stresses. We investigated the possibility of increasing the content of bioactive compounds in the seed of yellow soybean variety Laura. The soybean was treated during vegetation with five products based on plant extracts, on the assumption of enrichment of plants with various nutrients. Soybean flour extracts were screened spectrophotometrically for total phenolic content and antioxidant activity. The antioxidant activity was evaluated using three methods. The content of phenolic acids was determined by HPLC, and the raw protein content was estimated by the Kjeldahl method. Depending on the treatment, variations in the quantity of individual phenolic acids with up to 90% higher concentration as compared to the control were observed. Controlled usage of certain plant extracts can increase the concentration of the target group of bioactive compounds in the samples. The synergistic effect of proteins and phenolic compounds on the antioxidant activity of extracts was detected. The results of this study are not only important from the aspect of plant resistance to various types of stress, but also when considering soybean as a functional food.",
publisher = "Srpsko biološko društvo, Beograd, i dr.",
journal = "Archives of Biological Sciences",
title = "Enhancement of antioxidant activity and bioactive compound contents in yellow soybean by plant-extract-based products",
pages = "434-425",
number = "3",
volume = "71",
doi = "10.2298/ABS190123024D"
}

Đurović, S., Dragičević, V., Waisi, H., Pagnacco, M. C., Luković, N., Knežević-Jugović, Z.,& Nikolić, B.. (2019). Enhancement of antioxidant activity and bioactive compound contents in yellow soybean by plant-extract-based products. in Archives of Biological Sciences
Srpsko biološko društvo, Beograd, i dr.., 71(3), 425-434.
https://doi.org/10.2298/ABS190123024D

Đurović S, Dragičević V, Waisi H, Pagnacco MC, Luković N, Knežević-Jugović Z, Nikolić B. Enhancement of antioxidant activity and bioactive compound contents in yellow soybean by plant-extract-based products. in Archives of Biological Sciences. 2019;71(3):425-434.
doi:10.2298/ABS190123024D .

Đurović, Sanja, Dragičević, Vesna, Waisi, Hadi, Pagnacco, Maja C., Luković, Nevena, Knežević-Jugović, Zorica, Nikolić, Bogdan, "Enhancement of antioxidant activity and bioactive compound contents in yellow soybean by plant-extract-based products" in Archives of Biological Sciences, 71, no. 3 (2019):425-434,
https://doi.org/10.2298/ABS190123024D . .

TY  - JOUR
AU  - Vuksanović, Marija M.
AU  - Tomić, Nataša
AU  - Gajić-Kvaščev, Maja
AU  - Đokić, Veljko
AU  - Dojčinović, Marina
AU  - Volkov-Husović, Tatjana
AU  - Jančić-Heinemann, Radmila
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4308
AB  - Composites are materials that reach many users and therefore, it is necessary to correlate the properties of every component on the behaviour of the material. Alumina is used as reinforcement with the aim of improving hardness. It was proven that the hardness depends on the crystal structure of the reinforcement. As the hardness is related to cavitation resistance, the influence of different reinforcements on the composite cavitation resistance was studied. Alumina and iron(III) oxide doped alumina particles were prepared by the sol-gel technique, starting from soluble salts of both elements. The gels were calcined at three different temperatures: 700, 800 and 900 degrees C. Poly(methyl methacrylate), PMMA, was used as the polymer matrix reinforced with alumina particles. The reinforcement content of all the samples was 3 wt %. Cavitation erosion of the samples was measured using a standard ultrasonic vibratory setup with a stationary sample. The cavitation resistance of the samples was studied using the classical mass loss method and the surface defects resulting from cavitation were analyzed. The morphologies of the defects after 1 h of cavitation erosion were examined by field emission scanning electron microscopy (FE-SEM). The images were characterized using the image analysis procedure. The results showed that the alumina crystal structure resulting at different calcination temperatures influences the defect morphology, cavitation resistance and the hardness of the composites.
PB  - Elsevier Science Sa, Lausanne
T2  - Wear
T1  - The influence of alumina crystal structures on the morphology and surface erosion of PMMA composite materials exposed to cavitation testing
VL  - 436
DO  - 10.1016/j.wear.2019.203033
ER  - 

@article{
author = "Vuksanović, Marija M. and Tomić, Nataša and Gajić-Kvaščev, Maja and Đokić, Veljko and Dojčinović, Marina and Volkov-Husović, Tatjana and Jančić-Heinemann, Radmila",
year = "2019",
abstract = "Composites are materials that reach many users and therefore, it is necessary to correlate the properties of every component on the behaviour of the material. Alumina is used as reinforcement with the aim of improving hardness. It was proven that the hardness depends on the crystal structure of the reinforcement. As the hardness is related to cavitation resistance, the influence of different reinforcements on the composite cavitation resistance was studied. Alumina and iron(III) oxide doped alumina particles were prepared by the sol-gel technique, starting from soluble salts of both elements. The gels were calcined at three different temperatures: 700, 800 and 900 degrees C. Poly(methyl methacrylate), PMMA, was used as the polymer matrix reinforced with alumina particles. The reinforcement content of all the samples was 3 wt %. Cavitation erosion of the samples was measured using a standard ultrasonic vibratory setup with a stationary sample. The cavitation resistance of the samples was studied using the classical mass loss method and the surface defects resulting from cavitation were analyzed. The morphologies of the defects after 1 h of cavitation erosion were examined by field emission scanning electron microscopy (FE-SEM). The images were characterized using the image analysis procedure. The results showed that the alumina crystal structure resulting at different calcination temperatures influences the defect morphology, cavitation resistance and the hardness of the composites.",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Wear",
title = "The influence of alumina crystal structures on the morphology and surface erosion of PMMA composite materials exposed to cavitation testing",
volume = "436",
doi = "10.1016/j.wear.2019.203033"
}

Vuksanović, M. M., Tomić, N., Gajić-Kvaščev, M., Đokić, V., Dojčinović, M., Volkov-Husović, T.,& Jančić-Heinemann, R.. (2019). The influence of alumina crystal structures on the morphology and surface erosion of PMMA composite materials exposed to cavitation testing. in Wear
Elsevier Science Sa, Lausanne., 436.
https://doi.org/10.1016/j.wear.2019.203033

Vuksanović MM, Tomić N, Gajić-Kvaščev M, Đokić V, Dojčinović M, Volkov-Husović T, Jančić-Heinemann R. The influence of alumina crystal structures on the morphology and surface erosion of PMMA composite materials exposed to cavitation testing. in Wear. 2019;436.
doi:10.1016/j.wear.2019.203033 .

Vuksanović, Marija M., Tomić, Nataša, Gajić-Kvaščev, Maja, Đokić, Veljko, Dojčinović, Marina, Volkov-Husović, Tatjana, Jančić-Heinemann, Radmila, "The influence of alumina crystal structures on the morphology and surface erosion of PMMA composite materials exposed to cavitation testing" in Wear, 436 (2019),
https://doi.org/10.1016/j.wear.2019.203033 . .

Marinković, A., Tomić, N., Vuksanović, M. M., Kovačina, J. N., Marunkić, D. D., Milošević, M. D.,& Perendija, J.. (2019). Razvoj novih antikorozivnih organo-metalnih jedinjenja na bazi Cerijuma za primenu u alkidnim premazima. 
Univerzitet u Beogradu, Tehnološko-metalurški fakultet..
https://hdl.handle.net/21.15107/rcub_technorep_4148

Marinković A, Tomić N, Vuksanović MM, Kovačina JN, Marunkić DD, Milošević MD, Perendija J. Razvoj novih antikorozivnih organo-metalnih jedinjenja na bazi Cerijuma za primenu u alkidnim premazima. 2019;.
https://hdl.handle.net/21.15107/rcub_technorep_4148 .

Marinković, Aleksandar, Tomić, Nataša, Vuksanović, Marija M., Kovačina, Jovanka N., Marunkić, Dunja D., Milošević, Milena D., Perendija, Jovana, "Razvoj novih antikorozivnih organo-metalnih jedinjenja na bazi Cerijuma za primenu u alkidnim premazima" (2019),
https://hdl.handle.net/21.15107/rcub_technorep_4148 .

TY  - JOUR
AU  - Petronić, Sanja
AU  - Milovanović, Dubravka
AU  - Milosavljević, Anđelka
AU  - Radovanović, Željko
AU  - Cekić-Erić, Olivera
AU  - Jovičić, Radomir
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4279
AB  - In this paper, the influence of parameters of laser processing (drilling, cutting, welding and laser shock peening) on microstructure of superalloy Nimonic 263 are investigated. Drilling and welding process are carried out on the Nd: YAG laser model LS-HTS Mobile P160. When drilling the holes, the parameters of pulse frequency (5 Hz, 7 Hz and 9 Hz) and the pulses duration (1.8 ms to 3.6 ms) are varied. The microstructure is investigated and geometrical and metallurgical characteristics of the holes are determined.Cutting is carried out on the laser BISTRONIC, (2000), BISTAR 3015. The parameters that were varied are as follows: the average laser power, laser velocity, the pressure of the assisting gas and the focus position. Based on the geometrical characteristics of the cuts and surface morphology the optimal parameters are discussed and defined. The laser welded joints of Nimonic 263, in addition to microscopic examination and surface profilometry, were subjected to the destructive testing. During the laser shock peening, the samples were exposed to laser light at a wavelength of 1064 nm and 532 nm, with the number of accumulated pulses 50, 100 and 200. The operating laser was Nd: YAG EKSPLO, SL212P model. Structural analysis of Nimonic 263 was carried out using light microscopy, scanning electron microscopy and EDS analysis. Microhardness measurements were carried out using the Vickers method under load of 9,81N. Profilometry was performed on a contactless profilometer Zygo Newview 7100.
AB  - U ovom radu, proučavan je uticaj parametara određenih procesa laserske tehnike obrade materijala superlegure Nimonic 263 - bušenje, rezanje, zavarivanje i mehanička obrada laserom. Bušenje i zavarivanje su vršeni na laseru Nd:YAG laserom model HTS Mobile LS-P160. Prilikom bušenja rupa varirani su parametri frekvencije impulsa (5 Hz, 7Hz i 9 Hz) i dužine trajanja impulsa (1,8 ms do 3,6 ms). Ispitivana je mikrostruktura i određene su geometrijske i metalurške karakteristike rupa dobijenih ovim parametrima, na osnovu čega je izvršena optimizacija parametara obrade. Rezanje je izvedeno na laseru tipa Bistronic laser, (2000), BISTAR 3015. Varirani su parametri srednje snage lasera, brzina lasera, pritisak gasa i položaj fokusa. Na osnovu dobijenih geometrijskih karakteristika rezova i površinske morfologije diskutovani su i određeni optimalni parametri. Laserom zavareni spojevi limova legure Nimonik 263 su, osim mikroskopskih i profilometrijskih ispitivanja površina, ispitivani i metodom sa razaranjem. Prilikom laserskog deformacionog ojačavanja uzorci su bili izloženi laserskom svetlu na talasnoj dužini od 1064 nm i 532 nm, sa brojem akumuliranih impulsa: 50, 100 i 200. U svim delovima eksperimenta strukturna analiza superlegure Nimonic 263 izvedena je pomoću svetlosne mikroskopije (SM), skenirajuće elektronske mikroskopije (SEM) i EDS-analize. Merenja mikrotvrdoće vršena su pomoću metode Vikersa pod opterećenjem od 9,81N. Profilometrija je izvedena na beskontaktnom profilometru Zygo NewView 7100.
PB  - Engineering Society for Corrosion, Belgrade, Serbia
T2  - Zaštita materijala
T1  - Laser treatments of Nimonic 263 nickel-based superalloy
T1  - Laserske obrade superlegure Nimonik 263
EP  - 43
IS  - 1
SP  - 26
VL  - 60
DO  - 10.5937/zasmat1901026P
ER  - 

@article{
author = "Petronić, Sanja and Milovanović, Dubravka and Milosavljević, Anđelka and Radovanović, Željko and Cekić-Erić, Olivera and Jovičić, Radomir",
year = "2019",
abstract = "In this paper, the influence of parameters of laser processing (drilling, cutting, welding and laser shock peening) on microstructure of superalloy Nimonic 263 are investigated. Drilling and welding process are carried out on the Nd: YAG laser model LS-HTS Mobile P160. When drilling the holes, the parameters of pulse frequency (5 Hz, 7 Hz and 9 Hz) and the pulses duration (1.8 ms to 3.6 ms) are varied. The microstructure is investigated and geometrical and metallurgical characteristics of the holes are determined.Cutting is carried out on the laser BISTRONIC, (2000), BISTAR 3015. The parameters that were varied are as follows: the average laser power, laser velocity, the pressure of the assisting gas and the focus position. Based on the geometrical characteristics of the cuts and surface morphology the optimal parameters are discussed and defined. The laser welded joints of Nimonic 263, in addition to microscopic examination and surface profilometry, were subjected to the destructive testing. During the laser shock peening, the samples were exposed to laser light at a wavelength of 1064 nm and 532 nm, with the number of accumulated pulses 50, 100 and 200. The operating laser was Nd: YAG EKSPLO, SL212P model. Structural analysis of Nimonic 263 was carried out using light microscopy, scanning electron microscopy and EDS analysis. Microhardness measurements were carried out using the Vickers method under load of 9,81N. Profilometry was performed on a contactless profilometer Zygo Newview 7100., U ovom radu, proučavan je uticaj parametara određenih procesa laserske tehnike obrade materijala superlegure Nimonic 263 - bušenje, rezanje, zavarivanje i mehanička obrada laserom. Bušenje i zavarivanje su vršeni na laseru Nd:YAG laserom model HTS Mobile LS-P160. Prilikom bušenja rupa varirani su parametri frekvencije impulsa (5 Hz, 7Hz i 9 Hz) i dužine trajanja impulsa (1,8 ms do 3,6 ms). Ispitivana je mikrostruktura i određene su geometrijske i metalurške karakteristike rupa dobijenih ovim parametrima, na osnovu čega je izvršena optimizacija parametara obrade. Rezanje je izvedeno na laseru tipa Bistronic laser, (2000), BISTAR 3015. Varirani su parametri srednje snage lasera, brzina lasera, pritisak gasa i položaj fokusa. Na osnovu dobijenih geometrijskih karakteristika rezova i površinske morfologije diskutovani su i određeni optimalni parametri. Laserom zavareni spojevi limova legure Nimonik 263 su, osim mikroskopskih i profilometrijskih ispitivanja površina, ispitivani i metodom sa razaranjem. Prilikom laserskog deformacionog ojačavanja uzorci su bili izloženi laserskom svetlu na talasnoj dužini od 1064 nm i 532 nm, sa brojem akumuliranih impulsa: 50, 100 i 200. U svim delovima eksperimenta strukturna analiza superlegure Nimonic 263 izvedena je pomoću svetlosne mikroskopije (SM), skenirajuće elektronske mikroskopije (SEM) i EDS-analize. Merenja mikrotvrdoće vršena su pomoću metode Vikersa pod opterećenjem od 9,81N. Profilometrija je izvedena na beskontaktnom profilometru Zygo NewView 7100.",
publisher = "Engineering Society for Corrosion, Belgrade, Serbia",
journal = "Zaštita materijala",
title = "Laser treatments of Nimonic 263 nickel-based superalloy, Laserske obrade superlegure Nimonik 263",
pages = "43-26",
number = "1",
volume = "60",
doi = "10.5937/zasmat1901026P"
}

Petronić, S., Milovanović, D., Milosavljević, A., Radovanović, Ž., Cekić-Erić, O.,& Jovičić, R.. (2019). Laser treatments of Nimonic 263 nickel-based superalloy. in Zaštita materijala
Engineering Society for Corrosion, Belgrade, Serbia., 60(1), 26-43.
https://doi.org/10.5937/zasmat1901026P

Petronić S, Milovanović D, Milosavljević A, Radovanović Ž, Cekić-Erić O, Jovičić R. Laser treatments of Nimonic 263 nickel-based superalloy. in Zaštita materijala. 2019;60(1):26-43.
doi:10.5937/zasmat1901026P .

Petronić, Sanja, Milovanović, Dubravka, Milosavljević, Anđelka, Radovanović, Željko, Cekić-Erić, Olivera, Jovičić, Radomir, "Laser treatments of Nimonic 263 nickel-based superalloy" in Zaštita materijala, 60, no. 1 (2019):26-43,
https://doi.org/10.5937/zasmat1901026P . .

TY  - JOUR
AU  - Vuksanović, Marija M.
AU  - Gajić-Kvaščev, Maja
AU  - Dojčinović, Marina
AU  - Volkov-Husović, Tatjana
AU  - Jančić-Heinemann, Radmila
PY  - 2018
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3927
AB  - The aim of this study was to examine the influence of cavitation erosion on the morphology of defects formed on the surfaces of alumina-based materials. The alumina-based samples were exposed to cavitation erosion for 42 min. The damages that occurred were monitored at predefined time intervals by measuring the mass loss and observing the sample surfaces. Digital images of surfaces were processed using an image analysis software package to define morphological characteristics of the damages occurred. The calculated morphological parameters were subjected to analysis by pattern recognition techniques to correlate the appearance of particular morphological characteristics with the behavior of the material during cavitation erosion. The newly established method in describing cavitation erosion which uses pattern recognition approach for treatments of morphological parameters calculated for damages by image analysis tools gave the results efficient for material characterization as the traditional one.
PB  - Elsevier Science Inc, New York
T2  - Materials Characterization
T1  - New surface characterization tools for alumina based refractory material exposed to cavitation - Image analysis and pattern recognition approach
EP  - 119
SP  - 113
VL  - 144
DO  - 10.1016/j.matchar.2018.07.003
ER  - 

@article{
author = "Vuksanović, Marija M. and Gajić-Kvaščev, Maja and Dojčinović, Marina and Volkov-Husović, Tatjana and Jančić-Heinemann, Radmila",
year = "2018",
abstract = "The aim of this study was to examine the influence of cavitation erosion on the morphology of defects formed on the surfaces of alumina-based materials. The alumina-based samples were exposed to cavitation erosion for 42 min. The damages that occurred were monitored at predefined time intervals by measuring the mass loss and observing the sample surfaces. Digital images of surfaces were processed using an image analysis software package to define morphological characteristics of the damages occurred. The calculated morphological parameters were subjected to analysis by pattern recognition techniques to correlate the appearance of particular morphological characteristics with the behavior of the material during cavitation erosion. The newly established method in describing cavitation erosion which uses pattern recognition approach for treatments of morphological parameters calculated for damages by image analysis tools gave the results efficient for material characterization as the traditional one.",
publisher = "Elsevier Science Inc, New York",
journal = "Materials Characterization",
title = "New surface characterization tools for alumina based refractory material exposed to cavitation - Image analysis and pattern recognition approach",
pages = "119-113",
volume = "144",
doi = "10.1016/j.matchar.2018.07.003"
}

Vuksanović, M. M., Gajić-Kvaščev, M., Dojčinović, M., Volkov-Husović, T.,& Jančić-Heinemann, R.. (2018). New surface characterization tools for alumina based refractory material exposed to cavitation - Image analysis and pattern recognition approach. in Materials Characterization
Elsevier Science Inc, New York., 144, 113-119.
https://doi.org/10.1016/j.matchar.2018.07.003

Vuksanović MM, Gajić-Kvaščev M, Dojčinović M, Volkov-Husović T, Jančić-Heinemann R. New surface characterization tools for alumina based refractory material exposed to cavitation - Image analysis and pattern recognition approach. in Materials Characterization. 2018;144:113-119.
doi:10.1016/j.matchar.2018.07.003 .

Vuksanović, Marija M., Gajić-Kvaščev, Maja, Dojčinović, Marina, Volkov-Husović, Tatjana, Jančić-Heinemann, Radmila, "New surface characterization tools for alumina based refractory material exposed to cavitation - Image analysis and pattern recognition approach" in Materials Characterization, 144 (2018):113-119,
https://doi.org/10.1016/j.matchar.2018.07.003 . .

TY  - JOUR
AU  - Marinković, Aleksandar
AU  - Tomić, Nataša
AU  - Vuksanović, Marija M.
AU  - Gajić-Kvaščev, Maja
AU  - Milosavljević, Milutin M.
PY  - 2018
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3818
AB  - This paper presents the optimized technological process for obtaining stable calcium carbonate dispersion (CaCO3) in accordance to the standard prescribed in the paper industry. The reason for using CaCO3 in paper production is their low price when compared to the cellulose fibers and its ability to improve the properties of the final product. However, CaCO3 is alkaline filler that has relatively poor chemical stability that may affect the characteristics of the paper. For this reasons it is necessary to optimize the technology for obtaining a stable dispersion of CaCO3 with particles diameter in range 1 mm  lt Dsr  lt 2 mm, a pH of 9.7 and a viscosity of η lt 300 mPas. Diglycerintereftalate (DGTP) (dispersant - D1) and diethylene glycolterephthalate (DEGTP) (dispenser - D2) were synthesized from the waste poly(ethylene terephthalate) (PET) in addition to commercial - sodium tripolyphosphate (Na-TPP-D3) used in the grinding process. The pH stabilization was established with the addition of glycine/NaOH buffer, which allowed obtaining the dispersion with standard values of particle size, pH, viscosity and stability.
AB  - U radu je opisana optimizacija tehnološkog procesa dobijanja stabilne disperzije kalcijum-karbonata (CaCO3) po standardima koje propisuje papirna industrija. Razlog korišćenja CaCO3 u proizvodnji papira je njegova niska cena u odnosu na celulozna vlakna i njegova sposobnost da poboljša svojstva konačnog proizvoda. Međutim, CaCO3 je alkalni punilac koji ima relativno lošu hemijsku stabilnost i može značajno uticati na karakteristike papira. Iz tog razloga je neophodno optimizovati tehnologiju dobijanja stabilne disperzije CaCO3 sa vrednostima srednje veličine čestica u opsegu 1 mm  lt  Dsr  lt  2 mm, pH vrednosti 9,7 i viskoziteta η lt 300 mPas. Sintetisani su dispergatori iz otpadnog poli(etilentereftalata) (PET-a): diglicerintereftalata (DGTP) (dispergator - D1) i dietilenglikoltereftalata (DEGTP) (dispegator - D2) koji su pored komercijalnog - natrijum-tripolifosfata (Na-TPP - D3) korišćeni u procesu mlevenja. Stabilizacija pH vrednosti je uspostavljena sa dodatakom glicin/NaOH - pufera što je omogućilo dobijanje disperzije standardnih vrednosti veličina čestica, pH vrednosti, viskoznosti i stabilnosti.
PB  - Savez inženjera i tehničara Srbije, Beograd
T2  - Tehnika
T1  - Optimization of the process of calcium-carbonate dispersion stabilization for paper industry needs
T1  - Proces dobijanja stabilne disperzije kalcijum-karbonata za potrebe papirne industije
EP  - 767
IS  - 6
SP  - 762
VL  - 73
DO  - 10.5937/tehnika1806762M
ER  - 

@article{
author = "Marinković, Aleksandar and Tomić, Nataša and Vuksanović, Marija M. and Gajić-Kvaščev, Maja and Milosavljević, Milutin M.",
year = "2018",
abstract = "This paper presents the optimized technological process for obtaining stable calcium carbonate dispersion (CaCO3) in accordance to the standard prescribed in the paper industry. The reason for using CaCO3 in paper production is their low price when compared to the cellulose fibers and its ability to improve the properties of the final product. However, CaCO3 is alkaline filler that has relatively poor chemical stability that may affect the characteristics of the paper. For this reasons it is necessary to optimize the technology for obtaining a stable dispersion of CaCO3 with particles diameter in range 1 mm  lt Dsr  lt 2 mm, a pH of 9.7 and a viscosity of η lt 300 mPas. Diglycerintereftalate (DGTP) (dispersant - D1) and diethylene glycolterephthalate (DEGTP) (dispenser - D2) were synthesized from the waste poly(ethylene terephthalate) (PET) in addition to commercial - sodium tripolyphosphate (Na-TPP-D3) used in the grinding process. The pH stabilization was established with the addition of glycine/NaOH buffer, which allowed obtaining the dispersion with standard values of particle size, pH, viscosity and stability., U radu je opisana optimizacija tehnološkog procesa dobijanja stabilne disperzije kalcijum-karbonata (CaCO3) po standardima koje propisuje papirna industrija. Razlog korišćenja CaCO3 u proizvodnji papira je njegova niska cena u odnosu na celulozna vlakna i njegova sposobnost da poboljša svojstva konačnog proizvoda. Međutim, CaCO3 je alkalni punilac koji ima relativno lošu hemijsku stabilnost i može značajno uticati na karakteristike papira. Iz tog razloga je neophodno optimizovati tehnologiju dobijanja stabilne disperzije CaCO3 sa vrednostima srednje veličine čestica u opsegu 1 mm  lt  Dsr  lt  2 mm, pH vrednosti 9,7 i viskoziteta η lt 300 mPas. Sintetisani su dispergatori iz otpadnog poli(etilentereftalata) (PET-a): diglicerintereftalata (DGTP) (dispergator - D1) i dietilenglikoltereftalata (DEGTP) (dispegator - D2) koji su pored komercijalnog - natrijum-tripolifosfata (Na-TPP - D3) korišćeni u procesu mlevenja. Stabilizacija pH vrednosti je uspostavljena sa dodatakom glicin/NaOH - pufera što je omogućilo dobijanje disperzije standardnih vrednosti veličina čestica, pH vrednosti, viskoznosti i stabilnosti.",
publisher = "Savez inženjera i tehničara Srbije, Beograd",
journal = "Tehnika",
title = "Optimization of the process of calcium-carbonate dispersion stabilization for paper industry needs, Proces dobijanja stabilne disperzije kalcijum-karbonata za potrebe papirne industije",
pages = "767-762",
number = "6",
volume = "73",
doi = "10.5937/tehnika1806762M"
}

Marinković, A., Tomić, N., Vuksanović, M. M., Gajić-Kvaščev, M.,& Milosavljević, M. M.. (2018). Optimization of the process of calcium-carbonate dispersion stabilization for paper industry needs. in Tehnika
Savez inženjera i tehničara Srbije, Beograd., 73(6), 762-767.
https://doi.org/10.5937/tehnika1806762M

Marinković A, Tomić N, Vuksanović MM, Gajić-Kvaščev M, Milosavljević MM. Optimization of the process of calcium-carbonate dispersion stabilization for paper industry needs. in Tehnika. 2018;73(6):762-767.
doi:10.5937/tehnika1806762M .

Marinković, Aleksandar, Tomić, Nataša, Vuksanović, Marija M., Gajić-Kvaščev, Maja, Milosavljević, Milutin M., "Optimization of the process of calcium-carbonate dispersion stabilization for paper industry needs" in Tehnika, 73, no. 6 (2018):762-767,
https://doi.org/10.5937/tehnika1806762M . .

TY  - JOUR
AU  - Maksimović, Vesna
AU  - Devečerski, Aleksandar
AU  - Došen, Anja M.
AU  - Bobić, Ilija
AU  - Erić, Milić D.
AU  - Volkov-Husović, Tatjana
PY  - 2017
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3657
AB  - In the present study, an aluminum alloy A356 composite with addition of 5 wt% fly ash was synthesized and subjected to the cavitation erosion resistance test in order to find out if this material can be used in conditions where the cavitation erosion resistance is expected. Obtained results were compared with that of as-cast aluminum A356 alloy, confirming that composite possessed better cavitation erosion resistance than original alloy and that fly ash can be used as an effective reinforcement in metal matrix composites production. Scanning electron microscopy and optical microscopy was used for microstructural analysis. Phase identification of fly ash was carried out using X-ray diffraction analysis. Several methods for monitoring the cavitation erosion resistance of A356 alloy and corresponding composite were applied, such as: mass loss (Delta m), volume loss (Delta V), level of surface degradatiom (P/Po) and pit depth.
PB  - Springer India, New Delhi
T2  - Transactions of the Indian Institute of Metals
T1  - Comparative Study on Cavitation Erosion Resistance of A356 Alloy and A356FA5 Composite
EP  - 105
IS  - 1
SP  - 97
VL  - 70
DO  - 10.1007/s12666-016-0864-1
ER  - 

@article{
author = "Maksimović, Vesna and Devečerski, Aleksandar and Došen, Anja M. and Bobić, Ilija and Erić, Milić D. and Volkov-Husović, Tatjana",
year = "2017",
abstract = "In the present study, an aluminum alloy A356 composite with addition of 5 wt% fly ash was synthesized and subjected to the cavitation erosion resistance test in order to find out if this material can be used in conditions where the cavitation erosion resistance is expected. Obtained results were compared with that of as-cast aluminum A356 alloy, confirming that composite possessed better cavitation erosion resistance than original alloy and that fly ash can be used as an effective reinforcement in metal matrix composites production. Scanning electron microscopy and optical microscopy was used for microstructural analysis. Phase identification of fly ash was carried out using X-ray diffraction analysis. Several methods for monitoring the cavitation erosion resistance of A356 alloy and corresponding composite were applied, such as: mass loss (Delta m), volume loss (Delta V), level of surface degradatiom (P/Po) and pit depth.",
publisher = "Springer India, New Delhi",
journal = "Transactions of the Indian Institute of Metals",
title = "Comparative Study on Cavitation Erosion Resistance of A356 Alloy and A356FA5 Composite",
pages = "105-97",
number = "1",
volume = "70",
doi = "10.1007/s12666-016-0864-1"
}

Maksimović, V., Devečerski, A., Došen, A. M., Bobić, I., Erić, M. D.,& Volkov-Husović, T.. (2017). Comparative Study on Cavitation Erosion Resistance of A356 Alloy and A356FA5 Composite. in Transactions of the Indian Institute of Metals
Springer India, New Delhi., 70(1), 97-105.
https://doi.org/10.1007/s12666-016-0864-1

Maksimović V, Devečerski A, Došen AM, Bobić I, Erić MD, Volkov-Husović T. Comparative Study on Cavitation Erosion Resistance of A356 Alloy and A356FA5 Composite. in Transactions of the Indian Institute of Metals. 2017;70(1):97-105.
doi:10.1007/s12666-016-0864-1 .

Maksimović, Vesna, Devečerski, Aleksandar, Došen, Anja M., Bobić, Ilija, Erić, Milić D., Volkov-Husović, Tatjana, "Comparative Study on Cavitation Erosion Resistance of A356 Alloy and A356FA5 Composite" in Transactions of the Indian Institute of Metals, 70, no. 1 (2017):97-105,
https://doi.org/10.1007/s12666-016-0864-1 . .

TY  - JOUR
AU  - Maksin, Danijela
AU  - Nastasović, Aleksandra
AU  - Maksin, Tatjana N.
AU  - Sandić, Zvjezdana P.
AU  - Loos, Katja
AU  - Ekmeščić, Bojana
AU  - Onjia, Antonije
PY  - 2016
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3470
AB  - Synthesis of an unconventional resin based on 4-vinylpyridine (4-VP) and its Cu(II) sorption behavior were studied. Three samples of macroporous crosslinked poly(4-vinylpyridine-co-ethylene glycol dimethacrylate) (P4VPE) with different porosity parameters were prepared by suspension copolymerization by varying the n-heptane amount in the inert component. The samples were characterized by mercury porosimetry, elemental analysis and X-ray photoelectron spectroscopy (XPS). The sorption of P4VPE for Cu(II) ions, determined under non-competitive conditions, was relatively rapid, i.e., the maximum capacity was reached within 30 min. The maximum experimental sorption capacity for the sample with the highest values of pore diameter and specific pore volume (sample 3, Q(eq) = 89 mg g(-1)) was 17.5 times higher than for the sample with the lowest values of pore diameter and specific pore volume (sample 1, Q(eq) = 5.1 mg g(-1)). Since the values for pyridine content in all P4VPE samples were almost the same, it was concluded that the porosity parameters have predominant influence on Cu(II) sorption rates on P4VPE. The sorption behavior and the rate-controlling mechanisms were analyzed using six kinetic models (pseudo-first order, pseudo-second order, Elovich, intraparticle diffusion, Bangham and Boyd models). XPS study clarified the nature of the formed P4VPE-Cu(II) species.
PB  - Savez hemijskih inženjera, Beograd
T2  - Hemijska industrija
T1  - Cu(II) immobilization onto a one-step synthesized poly(4-vinylpyridine-co-ethylene glycol dimethacrylate) resin: Kinetics and XPS analysis
EP  - 19
IS  - 1
SP  - 9
VL  - 70
DO  - 10.2298/HEMIND141203007M
ER  - 

@article{
author = "Maksin, Danijela and Nastasović, Aleksandra and Maksin, Tatjana N. and Sandić, Zvjezdana P. and Loos, Katja and Ekmeščić, Bojana and Onjia, Antonije",
year = "2016",
abstract = "Synthesis of an unconventional resin based on 4-vinylpyridine (4-VP) and its Cu(II) sorption behavior were studied. Three samples of macroporous crosslinked poly(4-vinylpyridine-co-ethylene glycol dimethacrylate) (P4VPE) with different porosity parameters were prepared by suspension copolymerization by varying the n-heptane amount in the inert component. The samples were characterized by mercury porosimetry, elemental analysis and X-ray photoelectron spectroscopy (XPS). The sorption of P4VPE for Cu(II) ions, determined under non-competitive conditions, was relatively rapid, i.e., the maximum capacity was reached within 30 min. The maximum experimental sorption capacity for the sample with the highest values of pore diameter and specific pore volume (sample 3, Q(eq) = 89 mg g(-1)) was 17.5 times higher than for the sample with the lowest values of pore diameter and specific pore volume (sample 1, Q(eq) = 5.1 mg g(-1)). Since the values for pyridine content in all P4VPE samples were almost the same, it was concluded that the porosity parameters have predominant influence on Cu(II) sorption rates on P4VPE. The sorption behavior and the rate-controlling mechanisms were analyzed using six kinetic models (pseudo-first order, pseudo-second order, Elovich, intraparticle diffusion, Bangham and Boyd models). XPS study clarified the nature of the formed P4VPE-Cu(II) species.",
publisher = "Savez hemijskih inženjera, Beograd",
journal = "Hemijska industrija",
title = "Cu(II) immobilization onto a one-step synthesized poly(4-vinylpyridine-co-ethylene glycol dimethacrylate) resin: Kinetics and XPS analysis",
pages = "19-9",
number = "1",
volume = "70",
doi = "10.2298/HEMIND141203007M"
}

Maksin, D., Nastasović, A., Maksin, T. N., Sandić, Z. P., Loos, K., Ekmeščić, B.,& Onjia, A.. (2016). Cu(II) immobilization onto a one-step synthesized poly(4-vinylpyridine-co-ethylene glycol dimethacrylate) resin: Kinetics and XPS analysis. in Hemijska industrija
Savez hemijskih inženjera, Beograd., 70(1), 9-19.
https://doi.org/10.2298/HEMIND141203007M

Maksin D, Nastasović A, Maksin TN, Sandić ZP, Loos K, Ekmeščić B, Onjia A. Cu(II) immobilization onto a one-step synthesized poly(4-vinylpyridine-co-ethylene glycol dimethacrylate) resin: Kinetics and XPS analysis. in Hemijska industrija. 2016;70(1):9-19.
doi:10.2298/HEMIND141203007M .

Maksin, Danijela, Nastasović, Aleksandra, Maksin, Tatjana N., Sandić, Zvjezdana P., Loos, Katja, Ekmeščić, Bojana, Onjia, Antonije, "Cu(II) immobilization onto a one-step synthesized poly(4-vinylpyridine-co-ethylene glycol dimethacrylate) resin: Kinetics and XPS analysis" in Hemijska industrija, 70, no. 1 (2016):9-19,
https://doi.org/10.2298/HEMIND141203007M . .

TY  - JOUR
AU  - Dimitrijević, Marija
AU  - Jančić-Heinemann, Radmila
AU  - Mitraković, Dragan
AU  - Gajić-Kvaščev, Maja
PY  - 2015
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2998
AB  - The surface defects on alumina-based refractory arising from thermal shock were studied using image analysis and statistical tools. Alumina-based refractory specimens were prepared by adding a different amount of fibers into their original composition and compacted on different pressures. Obtained specimens were subjected to thermal shock, and induced surface defects were characterized by their morphological parameters determined using the image analysis procedure. The influence of preparation conditions on the surface defects morphology was studied using principle component analysis. It was shown that morphological parameters of defects vary corresponding to the composition and preparation conditions of ceramic material.
PB  - Wiley-Blackwell, Hoboken
T2  - International Journal of Applied Ceramic Technology
T1  - Influence of Preparation Conditions of Alumina-Based Refractory on the Morphological Parameters of Surface Defects
EP  - 607
IS  - 3
SP  - 598
VL  - 12
DO  - 10.1111/ijac.12209
ER  - 

@article{
author = "Dimitrijević, Marija and Jančić-Heinemann, Radmila and Mitraković, Dragan and Gajić-Kvaščev, Maja",
year = "2015",
abstract = "The surface defects on alumina-based refractory arising from thermal shock were studied using image analysis and statistical tools. Alumina-based refractory specimens were prepared by adding a different amount of fibers into their original composition and compacted on different pressures. Obtained specimens were subjected to thermal shock, and induced surface defects were characterized by their morphological parameters determined using the image analysis procedure. The influence of preparation conditions on the surface defects morphology was studied using principle component analysis. It was shown that morphological parameters of defects vary corresponding to the composition and preparation conditions of ceramic material.",
publisher = "Wiley-Blackwell, Hoboken",
journal = "International Journal of Applied Ceramic Technology",
title = "Influence of Preparation Conditions of Alumina-Based Refractory on the Morphological Parameters of Surface Defects",
pages = "607-598",
number = "3",
volume = "12",
doi = "10.1111/ijac.12209"
}

Dimitrijević, M., Jančić-Heinemann, R., Mitraković, D.,& Gajić-Kvaščev, M.. (2015). Influence of Preparation Conditions of Alumina-Based Refractory on the Morphological Parameters of Surface Defects. in International Journal of Applied Ceramic Technology
Wiley-Blackwell, Hoboken., 12(3), 598-607.
https://doi.org/10.1111/ijac.12209

Dimitrijević M, Jančić-Heinemann R, Mitraković D, Gajić-Kvaščev M. Influence of Preparation Conditions of Alumina-Based Refractory on the Morphological Parameters of Surface Defects. in International Journal of Applied Ceramic Technology. 2015;12(3):598-607.
doi:10.1111/ijac.12209 .

Dimitrijević, Marija, Jančić-Heinemann, Radmila, Mitraković, Dragan, Gajić-Kvaščev, Maja, "Influence of Preparation Conditions of Alumina-Based Refractory on the Morphological Parameters of Surface Defects" in International Journal of Applied Ceramic Technology, 12, no. 3 (2015):598-607,
https://doi.org/10.1111/ijac.12209 . .

TY  - CONF
AU  - Sandić, Zvjezdana
AU  - Maksin, Danijela
AU  - Nastasović, Aleksandra
AU  - Marković, Jelena P.
AU  - Hercigonja, Radmila
AU  - Milutinović, Slobodan
AU  - Onjia, Antonije
PY  - 2014
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7225
AB  - In order to define the favorable conditions for radioactive technetium (99Tc)
uptake, the sorption behavior of its non-active chemical analogue rhenium
(
75Re) on amino-functionalized macroporous hydrophilic copolymer was
studied. The pseudo-second-order (PSO) model provided the best fit for the
kinetic data, while the intraparticle diffusion (IPD) model indicated a
pronounced influence of the porous structure on the sorption rates. The
maximum sorption capacity was found to be 84 mg g-1 and 74 % removal
efficiency was reached after 180 min in citrate buffer at pH 5.0.
PB  - Belgrade : Society of Physical Chemists of Serbia
C3  - Physical Chemistry 2014 : proceedings / 12th International Conference on Fundamental and Applied Aspects of Physical Chemistry, September 22-26, 2014, Belgrade, Serbia
T1  - Perrhenate sorption by amino-functionalized glycidyl methacrylate copolymer: investigation of rhenium as an analogue of radioactive technetium
EP  - 822
SP  - 819
VL  - 1
UR  - https://hdl.handle.net/21.15107/rcub_technorep_7225
ER  - 

@conference{
author = "Sandić, Zvjezdana and Maksin, Danijela and Nastasović, Aleksandra and Marković, Jelena P. and Hercigonja, Radmila and Milutinović, Slobodan and Onjia, Antonije",
year = "2014",
abstract = "In order to define the favorable conditions for radioactive technetium (99Tc)
uptake, the sorption behavior of its non-active chemical analogue rhenium
(
75Re) on amino-functionalized macroporous hydrophilic copolymer was
studied. The pseudo-second-order (PSO) model provided the best fit for the
kinetic data, while the intraparticle diffusion (IPD) model indicated a
pronounced influence of the porous structure on the sorption rates. The
maximum sorption capacity was found to be 84 mg g-1 and 74 % removal
efficiency was reached after 180 min in citrate buffer at pH 5.0.",
publisher = "Belgrade : Society of Physical Chemists of Serbia",
journal = "Physical Chemistry 2014 : proceedings / 12th International Conference on Fundamental and Applied Aspects of Physical Chemistry, September 22-26, 2014, Belgrade, Serbia",
title = "Perrhenate sorption by amino-functionalized glycidyl methacrylate copolymer: investigation of rhenium as an analogue of radioactive technetium",
pages = "822-819",
volume = "1",
url = "https://hdl.handle.net/21.15107/rcub_technorep_7225"
}

Sandić, Z., Maksin, D., Nastasović, A., Marković, J. P., Hercigonja, R., Milutinović, S.,& Onjia, A.. (2014). Perrhenate sorption by amino-functionalized glycidyl methacrylate copolymer: investigation of rhenium as an analogue of radioactive technetium. in Physical Chemistry 2014 : proceedings / 12th International Conference on Fundamental and Applied Aspects of Physical Chemistry, September 22-26, 2014, Belgrade, Serbia
Belgrade : Society of Physical Chemists of Serbia., 1, 819-822.
https://hdl.handle.net/21.15107/rcub_technorep_7225

Sandić Z, Maksin D, Nastasović A, Marković JP, Hercigonja R, Milutinović S, Onjia A. Perrhenate sorption by amino-functionalized glycidyl methacrylate copolymer: investigation of rhenium as an analogue of radioactive technetium. in Physical Chemistry 2014 : proceedings / 12th International Conference on Fundamental and Applied Aspects of Physical Chemistry, September 22-26, 2014, Belgrade, Serbia. 2014;1:819-822.
https://hdl.handle.net/21.15107/rcub_technorep_7225 .

Sandić, Zvjezdana, Maksin, Danijela, Nastasović, Aleksandra, Marković, Jelena P., Hercigonja, Radmila, Milutinović, Slobodan, Onjia, Antonije, "Perrhenate sorption by amino-functionalized glycidyl methacrylate copolymer: investigation of rhenium as an analogue of radioactive technetium" in Physical Chemistry 2014 : proceedings / 12th International Conference on Fundamental and Applied Aspects of Physical Chemistry, September 22-26, 2014, Belgrade, Serbia, 1 (2014):819-822,
https://hdl.handle.net/21.15107/rcub_technorep_7225 .

TY  - JOUR
AU  - Gajić-Kvaščev, Maja
AU  - Marić-Stojanović, Milica
AU  - Jančić-Heinemann, Radmila
AU  - Kvascev, Goran S.
AU  - Andrić, Velibor
PY  - 2012
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2153
AB  - Background: Portable energy dispersive X-ray fluorescence (pEDXRF) spectrometry analysis was applied for the characterisation of archaeological ceramic findings from three Neolithic sites in Serbia. Two dimension reduction techniques, principal component analysis (PCA) and scattering matrices-based dimension reduction were used to examine the possible classification of those findings, and to extract the most discriminant features. Results: A decision-making procedure is proposed, whose goal is to classify unknown ceramic findings based on their elemental compositions derived by pEDXRF spectrometry. As a major part of decision-making procedure, the possibilities of two dimension reduction methods were tested. Scattering matrices-based dimension reduction was found to be the more efficient method for the purpose. Linear classifiers designed based on the desired output allowed for 7 of 8 unknown samples from the test set to be correctly classified. Conclusions: Based on the results, the conclusion is that despite the constraints typical of the applied analytical technique, the elemental composition can be considered as viable information in provenience studies. With a fully-developed procedure, ceramic artefacts can be classified based on their elemental composition and well-known provenance.
PB  - Springeropen, London
T2  - Chemistry Central Journal
T1  - Non-destructive characterisation and classification of ceramic artefacts using pEDXRF and statistical pattern recognition
VL  - 6
DO  - 10.1186/1752-153X-6-102
ER  - 

@article{
author = "Gajić-Kvaščev, Maja and Marić-Stojanović, Milica and Jančić-Heinemann, Radmila and Kvascev, Goran S. and Andrić, Velibor",
year = "2012",
abstract = "Background: Portable energy dispersive X-ray fluorescence (pEDXRF) spectrometry analysis was applied for the characterisation of archaeological ceramic findings from three Neolithic sites in Serbia. Two dimension reduction techniques, principal component analysis (PCA) and scattering matrices-based dimension reduction were used to examine the possible classification of those findings, and to extract the most discriminant features. Results: A decision-making procedure is proposed, whose goal is to classify unknown ceramic findings based on their elemental compositions derived by pEDXRF spectrometry. As a major part of decision-making procedure, the possibilities of two dimension reduction methods were tested. Scattering matrices-based dimension reduction was found to be the more efficient method for the purpose. Linear classifiers designed based on the desired output allowed for 7 of 8 unknown samples from the test set to be correctly classified. Conclusions: Based on the results, the conclusion is that despite the constraints typical of the applied analytical technique, the elemental composition can be considered as viable information in provenience studies. With a fully-developed procedure, ceramic artefacts can be classified based on their elemental composition and well-known provenance.",
publisher = "Springeropen, London",
journal = "Chemistry Central Journal",
title = "Non-destructive characterisation and classification of ceramic artefacts using pEDXRF and statistical pattern recognition",
volume = "6",
doi = "10.1186/1752-153X-6-102"
}

Gajić-Kvaščev, M., Marić-Stojanović, M., Jančić-Heinemann, R., Kvascev, G. S.,& Andrić, V.. (2012). Non-destructive characterisation and classification of ceramic artefacts using pEDXRF and statistical pattern recognition. in Chemistry Central Journal
Springeropen, London., 6.
https://doi.org/10.1186/1752-153X-6-102

Gajić-Kvaščev M, Marić-Stojanović M, Jančić-Heinemann R, Kvascev GS, Andrić V. Non-destructive characterisation and classification of ceramic artefacts using pEDXRF and statistical pattern recognition. in Chemistry Central Journal. 2012;6.
doi:10.1186/1752-153X-6-102 .

Gajić-Kvaščev, Maja, Marić-Stojanović, Milica, Jančić-Heinemann, Radmila, Kvascev, Goran S., Andrić, Velibor, "Non-destructive characterisation and classification of ceramic artefacts using pEDXRF and statistical pattern recognition" in Chemistry Central Journal, 6 (2012),
https://doi.org/10.1186/1752-153X-6-102 . .

TY  - JOUR
AU  - Hercigonja, Radmila
AU  - Maksin, Danijela
AU  - Nastasović, Aleksandra
AU  - Trifunović, Snežana
AU  - Glodić, Pavle B.
AU  - Onjia, Antonije
PY  - 2012
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2241
AB  - dThe possibility of sorption of technetium-99 in the form of pertechnetate anion (TcO(4)(-)) and the sorption kinetics for removing TcO(4)(-) from aqueous solution by chelating polymers based on glycidyl methacrylate (GMA) were investigated. Two samples of macroporous crosslinked poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate) (PGME), with different amount of the crosslinker (ethylene glycol dimethacrylate, EGDMA), were synthesized by suspension copolymerization and functionalized with diethylene triamine (deta). We propose that nonspecific sorption of pertechnetate anion via electrostatic interactions takes place at the protonated amino groups of macroporous crosslinked copolymer. The results of batch experiments per-formed at pH 1-14 showed fast sorption kinetics for removing TcO(4)(-) by amino-functionalized PGME-deta in a wide range of pH, that is, from 1.0 to 9.0. Almost complete removal of TcO(4)(-) (91-98%) was reached within 180 min in the stated pH range (1.0-9.0), with the sorption half-times of under 25 min. The partitioning coefficients of linear adsorption isotherms, with 180-min equilibrium time, reach the high values of 2130 mL g(-1) and 1698 mL g(-1) for the two samples of synthesized PGME-deta.
PB  - Wiley-Blackwell, Malden
T2  - Journal of Applied Polymer Science
T1  - Adsorptive Removal of Technetium-99 Using Macroporous Poly(GMA-co-EGDMA) Modified with Diethylene Triamine
EP  - 1282
IS  - 2
SP  - 1273
VL  - 123
DO  - 10.1002/app.34693
ER  - 

@article{
author = "Hercigonja, Radmila and Maksin, Danijela and Nastasović, Aleksandra and Trifunović, Snežana and Glodić, Pavle B. and Onjia, Antonije",
year = "2012",
abstract = "dThe possibility of sorption of technetium-99 in the form of pertechnetate anion (TcO(4)(-)) and the sorption kinetics for removing TcO(4)(-) from aqueous solution by chelating polymers based on glycidyl methacrylate (GMA) were investigated. Two samples of macroporous crosslinked poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate) (PGME), with different amount of the crosslinker (ethylene glycol dimethacrylate, EGDMA), were synthesized by suspension copolymerization and functionalized with diethylene triamine (deta). We propose that nonspecific sorption of pertechnetate anion via electrostatic interactions takes place at the protonated amino groups of macroporous crosslinked copolymer. The results of batch experiments per-formed at pH 1-14 showed fast sorption kinetics for removing TcO(4)(-) by amino-functionalized PGME-deta in a wide range of pH, that is, from 1.0 to 9.0. Almost complete removal of TcO(4)(-) (91-98%) was reached within 180 min in the stated pH range (1.0-9.0), with the sorption half-times of under 25 min. The partitioning coefficients of linear adsorption isotherms, with 180-min equilibrium time, reach the high values of 2130 mL g(-1) and 1698 mL g(-1) for the two samples of synthesized PGME-deta.",
publisher = "Wiley-Blackwell, Malden",
journal = "Journal of Applied Polymer Science",
title = "Adsorptive Removal of Technetium-99 Using Macroporous Poly(GMA-co-EGDMA) Modified with Diethylene Triamine",
pages = "1282-1273",
number = "2",
volume = "123",
doi = "10.1002/app.34693"
}

Hercigonja, R., Maksin, D., Nastasović, A., Trifunović, S., Glodić, P. B.,& Onjia, A.. (2012). Adsorptive Removal of Technetium-99 Using Macroporous Poly(GMA-co-EGDMA) Modified with Diethylene Triamine. in Journal of Applied Polymer Science
Wiley-Blackwell, Malden., 123(2), 1273-1282.
https://doi.org/10.1002/app.34693

Hercigonja R, Maksin D, Nastasović A, Trifunović S, Glodić PB, Onjia A. Adsorptive Removal of Technetium-99 Using Macroporous Poly(GMA-co-EGDMA) Modified with Diethylene Triamine. in Journal of Applied Polymer Science. 2012;123(2):1273-1282.
doi:10.1002/app.34693 .

Hercigonja, Radmila, Maksin, Danijela, Nastasović, Aleksandra, Trifunović, Snežana, Glodić, Pavle B., Onjia, Antonije, "Adsorptive Removal of Technetium-99 Using Macroporous Poly(GMA-co-EGDMA) Modified with Diethylene Triamine" in Journal of Applied Polymer Science, 123, no. 2 (2012):1273-1282,
https://doi.org/10.1002/app.34693 . .