TY  - JOUR
AU  - Porubska, Maria
AU  - Babić, Dragan
AU  - Janigova, Ivica
AU  - Slouf, Miroslav
AU  - Jomova, Klaudia
AU  - Chodak, Ivan
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1081
AB  - Crosslinking of polyamide 6 (PA) and filled one with glass fibres (PA/GF) was initiated via macroradical formation by gamma irradiation either in air or in inert argon atmosphere. The crosslinked portion was found to start at absorbed dose around 300 kGy and achieved about 60 and 40 wt% for PA and PA/GF, respectively, if irradiation proceeded in inert, while in air molecular weight increase was only observed without crosslinked gel formation. DSC indicated that irradiation leads to a decrease in crystallinity as well as lamellae thickness. Besides crosslinking, scission of polymer chains also occurs. Modest increase of impact strength was found for PA while small decrease for PA/GF was observed. The dependence of Youngs modulus values on the irradiation dose indicates a minimum around gel point being more pronounced for PA compared to the composite. Irradiation resulted in minor changes in tensile strength and elongation at break while a substantial increase in the elongation at yield was found for PA if irradiated in inert atmosphere. Generally, the application of an optimal dose of gamma irradiation in air results in an increase of toughness of PA without changing other mechanical properties.
PB  - Springer
T2  - Polymer Bulletin
T1  - The effect of gamma irradiation in air and inert atmosphere on structure and properties of unfilled or glass fibre-reinforced polyamide 6
VL  - 73
IS  - 6
SP  - 1775
EP  - 1794
DO  - 10.1007/s00289-015-1576-0
ER  - 

@article{
author = "Porubska, Maria and Babić, Dragan and Janigova, Ivica and Slouf, Miroslav and Jomova, Klaudia and Chodak, Ivan",
year = "2016",
abstract = "Crosslinking of polyamide 6 (PA) and filled one with glass fibres (PA/GF) was initiated via macroradical formation by gamma irradiation either in air or in inert argon atmosphere. The crosslinked portion was found to start at absorbed dose around 300 kGy and achieved about 60 and 40 wt% for PA and PA/GF, respectively, if irradiation proceeded in inert, while in air molecular weight increase was only observed without crosslinked gel formation. DSC indicated that irradiation leads to a decrease in crystallinity as well as lamellae thickness. Besides crosslinking, scission of polymer chains also occurs. Modest increase of impact strength was found for PA while small decrease for PA/GF was observed. The dependence of Youngs modulus values on the irradiation dose indicates a minimum around gel point being more pronounced for PA compared to the composite. Irradiation resulted in minor changes in tensile strength and elongation at break while a substantial increase in the elongation at yield was found for PA if irradiated in inert atmosphere. Generally, the application of an optimal dose of gamma irradiation in air results in an increase of toughness of PA without changing other mechanical properties.",
publisher = "Springer",
journal = "Polymer Bulletin",
title = "The effect of gamma irradiation in air and inert atmosphere on structure and properties of unfilled or glass fibre-reinforced polyamide 6",
volume = "73",
number = "6",
pages = "1775-1794",
doi = "10.1007/s00289-015-1576-0"
}

Porubska, M., Babić, D., Janigova, I., Slouf, M., Jomova, K.,& Chodak, I.. (2016). The effect of gamma irradiation in air and inert atmosphere on structure and properties of unfilled or glass fibre-reinforced polyamide 6. in Polymer Bulletin
Springer., 73(6), 1775-1794.
https://doi.org/10.1007/s00289-015-1576-0

Porubska M, Babić D, Janigova I, Slouf M, Jomova K, Chodak I. The effect of gamma irradiation in air and inert atmosphere on structure and properties of unfilled or glass fibre-reinforced polyamide 6. in Polymer Bulletin. 2016;73(6):1775-1794.
doi:10.1007/s00289-015-1576-0 .

Porubska, Maria, Babić, Dragan, Janigova, Ivica, Slouf, Miroslav, Jomova, Klaudia, Chodak, Ivan, "The effect of gamma irradiation in air and inert atmosphere on structure and properties of unfilled or glass fibre-reinforced polyamide 6" in Polymer Bulletin, 73, no. 6 (2016):1775-1794,
https://doi.org/10.1007/s00289-015-1576-0 . .

TY  - JOUR
AU  - Babić, Dragan
AU  - Kutlača, Đuro
AU  - Živković, Lazar
AU  - Štrbac, Dijana
AU  - Semenčenko, Dušica
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/891
AB  - Scientific productivity data (number of publications and h-indices), collected from the Web of Science (WoS) database for the period 2005-2010 for 13 countries of Southeast Europe (including Austria as the reference country) and for the 251 WoS categories were grouped, during extraction of data, into 41 fields of science (FoS) according to Frascati manual classification (OECD in Revised field of science and technology (FoS) classification in the Frascati manual, pp. 1-12, 2007). The Scientific Performance QuaLity (SPQL) level has been defined and calculated for the 13 studied countries and for all FoS based on the established best fit of the linear dependence between P (1/alpha) and h-index. From these data the SPQL levels of the six major fields and overall country levels have been generated in a way which makes them dependent not on the quantity of scientific publications output, but on its quality thus making them suitable for constructing conceivable science policies. Nevertheless, general observed trend shows growth of the quality of scientific performance (SPQL) with scientific production output, but there are evident exceptions from such a tendency in both positive and negative directions. The highest quality levels of the reached scientific performance have been identified for the 41 FoSs (subfields) and 6 major FoS by the countries concerned.
PB  - Springer
T2  - Scientometrics
T1  - Evaluation of the quality of scientific performance of the selected countries of Southeast Europe
VL  - 106
IS  - 1
SP  - 405
EP  - 434
DO  - 10.1007/s11192-015-1649-8
ER  - 

@article{
author = "Babić, Dragan and Kutlača, Đuro and Živković, Lazar and Štrbac, Dijana and Semenčenko, Dušica",
year = "2016",
abstract = "Scientific productivity data (number of publications and h-indices), collected from the Web of Science (WoS) database for the period 2005-2010 for 13 countries of Southeast Europe (including Austria as the reference country) and for the 251 WoS categories were grouped, during extraction of data, into 41 fields of science (FoS) according to Frascati manual classification (OECD in Revised field of science and technology (FoS) classification in the Frascati manual, pp. 1-12, 2007). The Scientific Performance QuaLity (SPQL) level has been defined and calculated for the 13 studied countries and for all FoS based on the established best fit of the linear dependence between P (1/alpha) and h-index. From these data the SPQL levels of the six major fields and overall country levels have been generated in a way which makes them dependent not on the quantity of scientific publications output, but on its quality thus making them suitable for constructing conceivable science policies. Nevertheless, general observed trend shows growth of the quality of scientific performance (SPQL) with scientific production output, but there are evident exceptions from such a tendency in both positive and negative directions. The highest quality levels of the reached scientific performance have been identified for the 41 FoSs (subfields) and 6 major FoS by the countries concerned.",
publisher = "Springer",
journal = "Scientometrics",
title = "Evaluation of the quality of scientific performance of the selected countries of Southeast Europe",
volume = "106",
number = "1",
pages = "405-434",
doi = "10.1007/s11192-015-1649-8"
}

Babić, D., Kutlača, Đ., Živković, L., Štrbac, D.,& Semenčenko, D.. (2016). Evaluation of the quality of scientific performance of the selected countries of Southeast Europe. in Scientometrics
Springer., 106(1), 405-434.
https://doi.org/10.1007/s11192-015-1649-8

Babić D, Kutlača Đ, Živković L, Štrbac D, Semenčenko D. Evaluation of the quality of scientific performance of the selected countries of Southeast Europe. in Scientometrics. 2016;106(1):405-434.
doi:10.1007/s11192-015-1649-8 .

Babić, Dragan, Kutlača, Đuro, Živković, Lazar, Štrbac, Dijana, Semenčenko, Dušica, "Evaluation of the quality of scientific performance of the selected countries of Southeast Europe" in Scientometrics, 106, no. 1 (2016):405-434,
https://doi.org/10.1007/s11192-015-1649-8 . .

TY  - JOUR
AU  - Kutlaca, Djuro
AU  - Babić, Dragan
AU  - Živković, Lazar
AU  - Štrbac, Dijana
PY  - 2015
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/335
AB  - This paper provides a comprehensive comparative analysis of the South East European countries scientific output and impact by Frascati fields of science in the period of 2005-2010. The aim is to determine the volume of scientific output in the mentioned period, level of development of certain scientific fields in selected countries and quality of scientific publication production. SEE countries scientific performance is examined on several indicators including total number of country publications per full time equivalent researcher, revealed publication advantage, the h index and top cited articles. Results of the study could be especially significant to the planners and policy-makers because they provide facts important for the long term S and T planning of the country.
T2  - Scientometrics
T1  - Analysis of quantitative and qualitative indicators of SEE countries scientific output
VL  - 102
IS  - 1
SP  - 247
EP  - 265
DO  - 10.1007/s11192-014-1290-y
ER  - 

@article{
author = "Kutlaca, Djuro and Babić, Dragan and Živković, Lazar and Štrbac, Dijana",
year = "2015",
abstract = "This paper provides a comprehensive comparative analysis of the South East European countries scientific output and impact by Frascati fields of science in the period of 2005-2010. The aim is to determine the volume of scientific output in the mentioned period, level of development of certain scientific fields in selected countries and quality of scientific publication production. SEE countries scientific performance is examined on several indicators including total number of country publications per full time equivalent researcher, revealed publication advantage, the h index and top cited articles. Results of the study could be especially significant to the planners and policy-makers because they provide facts important for the long term S and T planning of the country.",
journal = "Scientometrics",
title = "Analysis of quantitative and qualitative indicators of SEE countries scientific output",
volume = "102",
number = "1",
pages = "247-265",
doi = "10.1007/s11192-014-1290-y"
}

Kutlaca, D., Babić, D., Živković, L.,& Štrbac, D.. (2015). Analysis of quantitative and qualitative indicators of SEE countries scientific output. in Scientometrics, 102(1), 247-265.
https://doi.org/10.1007/s11192-014-1290-y

Kutlaca D, Babić D, Živković L, Štrbac D. Analysis of quantitative and qualitative indicators of SEE countries scientific output. in Scientometrics. 2015;102(1):247-265.
doi:10.1007/s11192-014-1290-y .

Kutlaca, Djuro, Babić, Dragan, Živković, Lazar, Štrbac, Dijana, "Analysis of quantitative and qualitative indicators of SEE countries scientific output" in Scientometrics, 102, no. 1 (2015):247-265,
https://doi.org/10.1007/s11192-014-1290-y . .

TY  - JOUR
AU  - Vulićević, Lj.
AU  - Ivanović, Nenad
AU  - Popovic, N.
AU  - Novaković, Mirjana M.
AU  - Popović, Maja
AU  - Mitrić, Miodrag
AU  - Andrić, Velibor
AU  - Babić, Dragan
PY  - 2008
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3581
AB  - Nano-sized powders of iron oxides have been synthesized electrochemically at temperatures in the range of 295-361 K, and current densities in the range of 200-1000 mA dm(-2). The structure and morphology of the powders were investigated by X-ray diffraction and scanning electron and transmission electron microscopy techniques. Their infrared absorption spectra, specific heat C(p)(T) and magnetic susceptibility chi(T) temperature dependences are also determined. The obtained powders consist of two phases, each possessing distinguished characteristics: the one formed of large plates and the other of whiskers. By appropriate adjustment of the synthesis conditions, it is possible to change features and relative abundances of the two phases, and that way to control morphology and other powder properties. Relaxation and transformation of the phases under external influences was also investigated, and the optimal procedure for preparation and stabilization of iron oxide nano-sized powders with desired characteristics was established.
T2  - Journal of Microscopy, Oxford
T1  - Investigation of properties of electrochemically synthesizediron oxide nano-powders
VL  - 232
IS  - 3
SP  - 629
EP  - 633
DO  - 10.1111/j.1365-2818.2008.02129.x
ER  - 

@article{
author = "Vulićević, Lj. and Ivanović, Nenad and Popovic, N. and Novaković, Mirjana M. and Popović, Maja and Mitrić, Miodrag and Andrić, Velibor and Babić, Dragan",
year = "2008",
abstract = "Nano-sized powders of iron oxides have been synthesized electrochemically at temperatures in the range of 295-361 K, and current densities in the range of 200-1000 mA dm(-2). The structure and morphology of the powders were investigated by X-ray diffraction and scanning electron and transmission electron microscopy techniques. Their infrared absorption spectra, specific heat C(p)(T) and magnetic susceptibility chi(T) temperature dependences are also determined. The obtained powders consist of two phases, each possessing distinguished characteristics: the one formed of large plates and the other of whiskers. By appropriate adjustment of the synthesis conditions, it is possible to change features and relative abundances of the two phases, and that way to control morphology and other powder properties. Relaxation and transformation of the phases under external influences was also investigated, and the optimal procedure for preparation and stabilization of iron oxide nano-sized powders with desired characteristics was established.",
journal = "Journal of Microscopy, Oxford",
title = "Investigation of properties of electrochemically synthesizediron oxide nano-powders",
volume = "232",
number = "3",
pages = "629-633",
doi = "10.1111/j.1365-2818.2008.02129.x"
}

Vulićević, Lj., Ivanović, N., Popovic, N., Novaković, M. M., Popović, M., Mitrić, M., Andrić, V.,& Babić, D.. (2008). Investigation of properties of electrochemically synthesizediron oxide nano-powders. in Journal of Microscopy, Oxford, 232(3), 629-633.
https://doi.org/10.1111/j.1365-2818.2008.02129.x

Vulićević L, Ivanović N, Popovic N, Novaković MM, Popović M, Mitrić M, Andrić V, Babić D. Investigation of properties of electrochemically synthesizediron oxide nano-powders. in Journal of Microscopy, Oxford. 2008;232(3):629-633.
doi:10.1111/j.1365-2818.2008.02129.x .

Vulićević, Lj., Ivanović, Nenad, Popovic, N., Novaković, Mirjana M., Popović, Maja, Mitrić, Miodrag, Andrić, Velibor, Babić, Dragan, "Investigation of properties of electrochemically synthesizediron oxide nano-powders" in Journal of Microscopy, Oxford, 232, no. 3 (2008):629-633,
https://doi.org/10.1111/j.1365-2818.2008.02129.x . .

TY  - JOUR
AU  - Krtolica-Žikić, Koviljka
AU  - Krajnović, Milena M.
AU  - Usaj-Knežević, Slavica
AU  - Babić, Dragan
AU  - Jovanovic, Dusan
AU  - Dimitrijević, Bogomir B.
PY  - 2007
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3184
AB  - AIM: To investigate the significance of p16 and O-6- methylguanine-DNA methyltransferase (MGMT) genes promoter hypermethylation and K-ras mutations on colorectal tumorigenesis and progression. METHODS: p16 and MGMT methylation status was examined on 47 tumor samples, and K-ras mutational status was examined on 85 tumor samples. For methylation analysis, a methylation specific PCR (MS-PCR) method was used. RESULTS: p16 and MGMT promoter methylation was found in 51% (24/47) and 43% (20/47) of CRCS, respectively, and the K-ras mutation was found in 44% (37/85) of CRCs. Comethylation of p16 and MGMT genes was significantly associated with lower aggressiveness of the disease within a two-year period of observation. Only 27% of patients with simultaneous p16 and MGMT methylation showed the detectible occurrence of metastasis and/or death, compared to 67% of patients without double methylation or with no methylation (3/11 vs 22/33, P LT 0.05, chi(2)-test). In addition, p16 and MGMT comethylation showed a trend toward an association with longer survival in patients with CRCs (35.5 +/- 6.0 mo vs 23.1 +/- 3.2 mo, P = 0.072, Log-rank test). Progression of the disease within a two-year period was observed in 66% of patients carrying the K-ras mutation, compared to only 19% of patients with wild type K-ras (29/44 vs 7/37, P LT 0.001, chi(2)-test). The presence of the K-ras mutation significantly correlated to shortened overall survival (20.0 +/- 1.9 mo vs 37.0 +/- 1.8 mo, P LT 0.001, Log-rank test). The comethylation of p16 and MGMT genes was significantly associated with lower aggressiveness of the disease even when K-ras mutations were included in the analysis as an independent variable. CONCLUSION: Our data suggest that comethylation of promoters of p16 and MGMT genes could have a prognostic value in patients with CRC. Specifically, concurrent methylation of both genes correlates with better prognosis. (C) 2007 The WJG Press. All rights reserved.
T2  - World Journal of Gastroenterology
T1  - Comethylation of p16 and MGMT genes in colorectal carcinoma: Correlation with clinicopathological features and prognostic value
VL  - 13
IS  - 8
SP  - 1187
EP  - 1194
DO  - 10.3748/wjg.v13.i8.1187
ER  - 

@article{
author = "Krtolica-Žikić, Koviljka and Krajnović, Milena M. and Usaj-Knežević, Slavica and Babić, Dragan and Jovanovic, Dusan and Dimitrijević, Bogomir B.",
year = "2007",
abstract = "AIM: To investigate the significance of p16 and O-6- methylguanine-DNA methyltransferase (MGMT) genes promoter hypermethylation and K-ras mutations on colorectal tumorigenesis and progression. METHODS: p16 and MGMT methylation status was examined on 47 tumor samples, and K-ras mutational status was examined on 85 tumor samples. For methylation analysis, a methylation specific PCR (MS-PCR) method was used. RESULTS: p16 and MGMT promoter methylation was found in 51% (24/47) and 43% (20/47) of CRCS, respectively, and the K-ras mutation was found in 44% (37/85) of CRCs. Comethylation of p16 and MGMT genes was significantly associated with lower aggressiveness of the disease within a two-year period of observation. Only 27% of patients with simultaneous p16 and MGMT methylation showed the detectible occurrence of metastasis and/or death, compared to 67% of patients without double methylation or with no methylation (3/11 vs 22/33, P LT 0.05, chi(2)-test). In addition, p16 and MGMT comethylation showed a trend toward an association with longer survival in patients with CRCs (35.5 +/- 6.0 mo vs 23.1 +/- 3.2 mo, P = 0.072, Log-rank test). Progression of the disease within a two-year period was observed in 66% of patients carrying the K-ras mutation, compared to only 19% of patients with wild type K-ras (29/44 vs 7/37, P LT 0.001, chi(2)-test). The presence of the K-ras mutation significantly correlated to shortened overall survival (20.0 +/- 1.9 mo vs 37.0 +/- 1.8 mo, P LT 0.001, Log-rank test). The comethylation of p16 and MGMT genes was significantly associated with lower aggressiveness of the disease even when K-ras mutations were included in the analysis as an independent variable. CONCLUSION: Our data suggest that comethylation of promoters of p16 and MGMT genes could have a prognostic value in patients with CRC. Specifically, concurrent methylation of both genes correlates with better prognosis. (C) 2007 The WJG Press. All rights reserved.",
journal = "World Journal of Gastroenterology",
title = "Comethylation of p16 and MGMT genes in colorectal carcinoma: Correlation with clinicopathological features and prognostic value",
volume = "13",
number = "8",
pages = "1187-1194",
doi = "10.3748/wjg.v13.i8.1187"
}

Krtolica-Žikić, K., Krajnović, M. M., Usaj-Knežević, S., Babić, D., Jovanovic, D.,& Dimitrijević, B. B.. (2007). Comethylation of p16 and MGMT genes in colorectal carcinoma: Correlation with clinicopathological features and prognostic value. in World Journal of Gastroenterology, 13(8), 1187-1194.
https://doi.org/10.3748/wjg.v13.i8.1187

Krtolica-Žikić K, Krajnović MM, Usaj-Knežević S, Babić D, Jovanovic D, Dimitrijević BB. Comethylation of p16 and MGMT genes in colorectal carcinoma: Correlation with clinicopathological features and prognostic value. in World Journal of Gastroenterology. 2007;13(8):1187-1194.
doi:10.3748/wjg.v13.i8.1187 .

Krtolica-Žikić, Koviljka, Krajnović, Milena M., Usaj-Knežević, Slavica, Babić, Dragan, Jovanovic, Dusan, Dimitrijević, Bogomir B., "Comethylation of p16 and MGMT genes in colorectal carcinoma: Correlation with clinicopathological features and prognostic value" in World Journal of Gastroenterology, 13, no. 8 (2007):1187-1194,
https://doi.org/10.3748/wjg.v13.i8.1187 . .

TY  - JOUR
AU  - Marinović-Cincović, Milena
AU  - Babić, Dragan
AU  - Džunuzović, Enis S.
AU  - Popov-Pergal, Katarina
AU  - Rancic, Milica
PY  - 2007
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3301
AB  - Polyimide resins were obtained from the reaction between N-[4-benzoyl-2-(2,5-dioxo-2,5-dihydro-pyrrol-1-yl)-phenyl]-acetamide and the following compounds with terminal amino groups: urea, 4-[(4-aminophenyl)sulfonyl] aniline, thiourea, 2-aminoethylamine, and 4.4-diaminodiphenylmethane. The thermal and thermooxidative behaviour of the polyimide resins was studied by thermogravimetric measurements (TG) in oxygen and nitrogen. Polyimide resins have been irradiated (500 kGy) and their radiation stability evaluated on the basis of thermal and thermooxidative behaviour of irradiated samples. The thermal and oxidative degradation of the examined polyimides is complex and occurs in two phases. The first step occurs in both nitrogen and oxygen but it is somewhat less pronounced in oxygen due to oxidation and formation of more stable products. All samples showed very good radiation stability and there is almost no change in the first degradation step while the span of the peaks in the second step is narrowed and temperatures are slightly lower. (C) 2007 Elsevier Ltd. All rights reserved.
T2  - Polymer Degradation and Stability
T1  - Thermal, oxidative and radiation stability of polyimides. Part IV: Polyimides based on N-[4-benzoyl-2-(2,5-dioxo-2,5-dihydro-pyrrol-1-yl)-phenyl]-acetamide and different diamines
VL  - 92
IS  - 9
SP  - 1730
EP  - 1736
DO  - 10.1016/j.polymdegradstab.2007.05.021
ER  - 

@article{
author = "Marinović-Cincović, Milena and Babić, Dragan and Džunuzović, Enis S. and Popov-Pergal, Katarina and Rancic, Milica",
year = "2007",
abstract = "Polyimide resins were obtained from the reaction between N-[4-benzoyl-2-(2,5-dioxo-2,5-dihydro-pyrrol-1-yl)-phenyl]-acetamide and the following compounds with terminal amino groups: urea, 4-[(4-aminophenyl)sulfonyl] aniline, thiourea, 2-aminoethylamine, and 4.4-diaminodiphenylmethane. The thermal and thermooxidative behaviour of the polyimide resins was studied by thermogravimetric measurements (TG) in oxygen and nitrogen. Polyimide resins have been irradiated (500 kGy) and their radiation stability evaluated on the basis of thermal and thermooxidative behaviour of irradiated samples. The thermal and oxidative degradation of the examined polyimides is complex and occurs in two phases. The first step occurs in both nitrogen and oxygen but it is somewhat less pronounced in oxygen due to oxidation and formation of more stable products. All samples showed very good radiation stability and there is almost no change in the first degradation step while the span of the peaks in the second step is narrowed and temperatures are slightly lower. (C) 2007 Elsevier Ltd. All rights reserved.",
journal = "Polymer Degradation and Stability",
title = "Thermal, oxidative and radiation stability of polyimides. Part IV: Polyimides based on N-[4-benzoyl-2-(2,5-dioxo-2,5-dihydro-pyrrol-1-yl)-phenyl]-acetamide and different diamines",
volume = "92",
number = "9",
pages = "1730-1736",
doi = "10.1016/j.polymdegradstab.2007.05.021"
}

Marinović-Cincović, M., Babić, D., Džunuzović, E. S., Popov-Pergal, K.,& Rancic, M.. (2007). Thermal, oxidative and radiation stability of polyimides. Part IV: Polyimides based on N-[4-benzoyl-2-(2,5-dioxo-2,5-dihydro-pyrrol-1-yl)-phenyl]-acetamide and different diamines. in Polymer Degradation and Stability, 92(9), 1730-1736.
https://doi.org/10.1016/j.polymdegradstab.2007.05.021

Marinović-Cincović M, Babić D, Džunuzović ES, Popov-Pergal K, Rancic M. Thermal, oxidative and radiation stability of polyimides. Part IV: Polyimides based on N-[4-benzoyl-2-(2,5-dioxo-2,5-dihydro-pyrrol-1-yl)-phenyl]-acetamide and different diamines. in Polymer Degradation and Stability. 2007;92(9):1730-1736.
doi:10.1016/j.polymdegradstab.2007.05.021 .

Marinović-Cincović, Milena, Babić, Dragan, Džunuzović, Enis S., Popov-Pergal, Katarina, Rancic, Milica, "Thermal, oxidative and radiation stability of polyimides. Part IV: Polyimides based on N-[4-benzoyl-2-(2,5-dioxo-2,5-dihydro-pyrrol-1-yl)-phenyl]-acetamide and different diamines" in Polymer Degradation and Stability, 92, no. 9 (2007):1730-1736,
https://doi.org/10.1016/j.polymdegradstab.2007.05.021 . .

TY  - JOUR
AU  - Džunuzović, Enis S.
AU  - Tasic, S
AU  - Bozic, B
AU  - Babić, Dragan
AU  - Dunjic, B
PY  - 2005
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2849
AB  - Urethane acrylate resins based on partially modified aliphatic hyperbranched polyesters (HBP) have been synthesized. HBP of the second and the third generation were synthesized from 2,2-bis(hydroxymethyl)propionic acid and di-trimethylol propane. The modification of certain amount of OH end-groups was carried out with soybean fatty acids. The urethane acrylates with different degrees of acrylation have been obtained by reaction of partially modified HBP and different amounts of NCO adduct which had been previously obtained by reaction of equimolar amounts of isophorone diisocyanate and 2-hydroxyethyl acrylate. The synthesized samples were characterized by FT-IR,H-1 and C-13 NMR and GPC. The theological properties of uncured samples and mechanical and thermal properties of UV cured urethane acrylates diluted with 20 wt.% hexanediol diacrylate were examined. The modification of OH end-groups with soybean fatty acids causes a rapid decrease in viscosity of HBP. The examined properties of urethane acrylates depend on the degree of acrylation. After irradiating, the additional cross-linking, which is caused by reaction of double bonds from unsaturated fatty acids, has also important effect on the properties of cured samples. (C) 2004 Published by Elsevier B.V.
T2  - Progress in Organic Coatings
T1  - UV-curable hyperbranched urethane acrylate oligomers containing soybean fatty acids
VL  - 52
IS  - 2
SP  - 136
EP  - 143
DO  - 10.1016/j.porgcoat.2004.10.003
ER  - 

@article{
author = "Džunuzović, Enis S. and Tasic, S and Bozic, B and Babić, Dragan and Dunjic, B",
year = "2005",
abstract = "Urethane acrylate resins based on partially modified aliphatic hyperbranched polyesters (HBP) have been synthesized. HBP of the second and the third generation were synthesized from 2,2-bis(hydroxymethyl)propionic acid and di-trimethylol propane. The modification of certain amount of OH end-groups was carried out with soybean fatty acids. The urethane acrylates with different degrees of acrylation have been obtained by reaction of partially modified HBP and different amounts of NCO adduct which had been previously obtained by reaction of equimolar amounts of isophorone diisocyanate and 2-hydroxyethyl acrylate. The synthesized samples were characterized by FT-IR,H-1 and C-13 NMR and GPC. The theological properties of uncured samples and mechanical and thermal properties of UV cured urethane acrylates diluted with 20 wt.% hexanediol diacrylate were examined. The modification of OH end-groups with soybean fatty acids causes a rapid decrease in viscosity of HBP. The examined properties of urethane acrylates depend on the degree of acrylation. After irradiating, the additional cross-linking, which is caused by reaction of double bonds from unsaturated fatty acids, has also important effect on the properties of cured samples. (C) 2004 Published by Elsevier B.V.",
journal = "Progress in Organic Coatings",
title = "UV-curable hyperbranched urethane acrylate oligomers containing soybean fatty acids",
volume = "52",
number = "2",
pages = "136-143",
doi = "10.1016/j.porgcoat.2004.10.003"
}

Džunuzović, E. S., Tasic, S., Bozic, B., Babić, D.,& Dunjic, B.. (2005). UV-curable hyperbranched urethane acrylate oligomers containing soybean fatty acids. in Progress in Organic Coatings, 52(2), 136-143.
https://doi.org/10.1016/j.porgcoat.2004.10.003

Džunuzović ES, Tasic S, Bozic B, Babić D, Dunjic B. UV-curable hyperbranched urethane acrylate oligomers containing soybean fatty acids. in Progress in Organic Coatings. 2005;52(2):136-143.
doi:10.1016/j.porgcoat.2004.10.003 .

Džunuzović, Enis S., Tasic, S, Bozic, B, Babić, Dragan, Dunjic, B, "UV-curable hyperbranched urethane acrylate oligomers containing soybean fatty acids" in Progress in Organic Coatings, 52, no. 2 (2005):136-143,
https://doi.org/10.1016/j.porgcoat.2004.10.003 . .

TY  - JOUR
AU  - Nikolić, Lj.
AU  - Skala, Dejan
AU  - Nikolić, Vladimir M.
AU  - Stamenkovic, J
AU  - Babić, Dragan
AU  - Ilic-Stojanovic, S
PY  - 2004
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2690
AB  - In this work the synthesis of a crosslinked macroporous copolymer was effected from methyl methacrylate and acrylamide. The synthesis process began with emulsion prepolymerization, followed by sol-gel copolymerization until a hard block was obtained. Determination of the properties of the obtained material was carried out by FTIR, mercury porosimetry, and SEM microscopy. The material was characterized by a porous structure with open pores. The macroporous copolymer obtained can be used for polymer-analog reactions and the transformation of amide and ester groups into acyl azide groups. It can be used as a hard inert support for the immobilization of enzymes, or other proteins, by condensation of acyl azide group on poly-mer with the free amino group from the base amino acid of enzyme/protein. For the immobilization of microorganisms it can be used by vacuum diffusion of microorganism suspension into the porous structure, without active group transformation reactions. With microorganisms in the polymer pores, microorganism colonies form within the copolymer by microbial fermentation. (C) 2003 Wiley Periodicals, Inc. J Appl Polym Sci 91: 387-395, 2004.
T2  - Journal of Applied Polymer Science
T1  - Methyl methacrylate and acrylamide crosslinked macroporous copolymers
VL  - 91
IS  - 1
SP  - 387
EP  - 395
DO  - 10.1002/app.13113
ER  - 

@article{
author = "Nikolić, Lj. and Skala, Dejan and Nikolić, Vladimir M. and Stamenkovic, J and Babić, Dragan and Ilic-Stojanovic, S",
year = "2004",
abstract = "In this work the synthesis of a crosslinked macroporous copolymer was effected from methyl methacrylate and acrylamide. The synthesis process began with emulsion prepolymerization, followed by sol-gel copolymerization until a hard block was obtained. Determination of the properties of the obtained material was carried out by FTIR, mercury porosimetry, and SEM microscopy. The material was characterized by a porous structure with open pores. The macroporous copolymer obtained can be used for polymer-analog reactions and the transformation of amide and ester groups into acyl azide groups. It can be used as a hard inert support for the immobilization of enzymes, or other proteins, by condensation of acyl azide group on poly-mer with the free amino group from the base amino acid of enzyme/protein. For the immobilization of microorganisms it can be used by vacuum diffusion of microorganism suspension into the porous structure, without active group transformation reactions. With microorganisms in the polymer pores, microorganism colonies form within the copolymer by microbial fermentation. (C) 2003 Wiley Periodicals, Inc. J Appl Polym Sci 91: 387-395, 2004.",
journal = "Journal of Applied Polymer Science",
title = "Methyl methacrylate and acrylamide crosslinked macroporous copolymers",
volume = "91",
number = "1",
pages = "387-395",
doi = "10.1002/app.13113"
}

Nikolić, Lj., Skala, D., Nikolić, V. M., Stamenkovic, J., Babić, D.,& Ilic-Stojanovic, S.. (2004). Methyl methacrylate and acrylamide crosslinked macroporous copolymers. in Journal of Applied Polymer Science, 91(1), 387-395.
https://doi.org/10.1002/app.13113

Nikolić L, Skala D, Nikolić VM, Stamenkovic J, Babić D, Ilic-Stojanovic S. Methyl methacrylate and acrylamide crosslinked macroporous copolymers. in Journal of Applied Polymer Science. 2004;91(1):387-395.
doi:10.1002/app.13113 .

Nikolić, Lj., Skala, Dejan, Nikolić, Vladimir M., Stamenkovic, J, Babić, Dragan, Ilic-Stojanovic, S, "Methyl methacrylate and acrylamide crosslinked macroporous copolymers" in Journal of Applied Polymer Science, 91, no. 1 (2004):387-395,
https://doi.org/10.1002/app.13113 . .

TY  - JOUR
AU  - Marinović-Cincović, Milena
AU  - Džunuzović, Enis S.
AU  - Babić, Dragan
AU  - Popov-Pergal, Katarina
AU  - Pergal, Miroslav
PY  - 2004
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2820
AB  - Different polyimide resins were synthesized using N-[3-(2,5-dioxo-2,5-dihydro-1H-pyrrol-1-yl)phenyl]acetamide and the following compounds with terminal amino groups: urea, 6-aminohexylamine, 2-aminoethylamine, 3-[4-(3-aminopropyl)piperazin-1-yl]propan-l-amine, 4-[(4-aminocyclohexyl)methyl]cyclohexanamine, 4-(4-aminobenzyl)ani line, and 4-[-aminophenyl)sulfonyl] aniline. The thermal and thermooxidative behaviour of the polyimide resins was studied by thermogravimetric measurements (TG) in oxygen and nitrogen. Polyimide resins have been irradiated (500 kGy) and their radiation stability evaluated on the basis of thermal and thermooxidative behaviour of irradiated samples. (C) 2004 Elsevier Ltd. All rights reserved.
T2  - Polymer Degradation and Stability
T1  - Thermal, oxidative and radiation stability of polyimides III. Polyimides based on N-[3-(2,5-dioxo-2,5-dihydro-1H-pyrrol-1-yl)phenyl]acetamide and different diamines
VL  - 86
IS  - 2
SP  - 349
EP  - 355
DO  - 10.1016/j.polymdegradstab.2004.03.023
ER  - 

@article{
author = "Marinović-Cincović, Milena and Džunuzović, Enis S. and Babić, Dragan and Popov-Pergal, Katarina and Pergal, Miroslav",
year = "2004",
abstract = "Different polyimide resins were synthesized using N-[3-(2,5-dioxo-2,5-dihydro-1H-pyrrol-1-yl)phenyl]acetamide and the following compounds with terminal amino groups: urea, 6-aminohexylamine, 2-aminoethylamine, 3-[4-(3-aminopropyl)piperazin-1-yl]propan-l-amine, 4-[(4-aminocyclohexyl)methyl]cyclohexanamine, 4-(4-aminobenzyl)ani line, and 4-[-aminophenyl)sulfonyl] aniline. The thermal and thermooxidative behaviour of the polyimide resins was studied by thermogravimetric measurements (TG) in oxygen and nitrogen. Polyimide resins have been irradiated (500 kGy) and their radiation stability evaluated on the basis of thermal and thermooxidative behaviour of irradiated samples. (C) 2004 Elsevier Ltd. All rights reserved.",
journal = "Polymer Degradation and Stability",
title = "Thermal, oxidative and radiation stability of polyimides III. Polyimides based on N-[3-(2,5-dioxo-2,5-dihydro-1H-pyrrol-1-yl)phenyl]acetamide and different diamines",
volume = "86",
number = "2",
pages = "349-355",
doi = "10.1016/j.polymdegradstab.2004.03.023"
}

Marinović-Cincović, M., Džunuzović, E. S., Babić, D., Popov-Pergal, K.,& Pergal, M.. (2004). Thermal, oxidative and radiation stability of polyimides III. Polyimides based on N-[3-(2,5-dioxo-2,5-dihydro-1H-pyrrol-1-yl)phenyl]acetamide and different diamines. in Polymer Degradation and Stability, 86(2), 349-355.
https://doi.org/10.1016/j.polymdegradstab.2004.03.023

Marinović-Cincović M, Džunuzović ES, Babić D, Popov-Pergal K, Pergal M. Thermal, oxidative and radiation stability of polyimides III. Polyimides based on N-[3-(2,5-dioxo-2,5-dihydro-1H-pyrrol-1-yl)phenyl]acetamide and different diamines. in Polymer Degradation and Stability. 2004;86(2):349-355.
doi:10.1016/j.polymdegradstab.2004.03.023 .

Marinović-Cincović, Milena, Džunuzović, Enis S., Babić, Dragan, Popov-Pergal, Katarina, Pergal, Miroslav, "Thermal, oxidative and radiation stability of polyimides III. Polyimides based on N-[3-(2,5-dioxo-2,5-dihydro-1H-pyrrol-1-yl)phenyl]acetamide and different diamines" in Polymer Degradation and Stability, 86, no. 2 (2004):349-355,
https://doi.org/10.1016/j.polymdegradstab.2004.03.023 . .

TY  - JOUR
AU  - Džunuzović, Enis S.
AU  - Tasic, S
AU  - Bozic, B
AU  - Babić, Dragan
AU  - Dunjic, B
PY  - 2004
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2780
AB  - A series of acrylate functionalized samples based on hyperbranched hydroxy-terminated polyesters with different molecular weights and different degrees of acrylation were synthesized. The obtained urethane acrylates were slightly yellow viscose liquids. Their composition characterized by FTIR and H-1-NMR spectroscopy and their molecular weights were measured by GPC. All the synthesized samples were diluted with 25 wt.% 1.4-butanediol dimethacrylate (BDDM). The rheological properties of the uncured samples and the dynamic mechanical properties of the UV cured samples were examined. All the samples exhibit Newtonian behavior, which indicates the absence of physical entanglements in these polymers. The viscosity increases with increasing number of acrylic groups per molecule. The glass transition temperature of the UV cured samples increases with increasing the number of acrylic groups per molecule. The value of the storage modulus in the rubber-elastic plateau and the cross-link density increase with increasing number of acrylic groups per molecule. The formed networks are inhomogeneous and the residual unsaturation is the highest in the samples with the largest number of acrylic groups per molecule.
T2  - Journal of the Serbian Chemical Society
T1  - Dynamical mechanical analysis of photocrosslinked hyperbranched urethane acrylates
VL  - 69
IS  - 6
SP  - 441
EP  - 453
DO  - 10.2298/JSC0406441D
ER  - 

@article{
author = "Džunuzović, Enis S. and Tasic, S and Bozic, B and Babić, Dragan and Dunjic, B",
year = "2004",
abstract = "A series of acrylate functionalized samples based on hyperbranched hydroxy-terminated polyesters with different molecular weights and different degrees of acrylation were synthesized. The obtained urethane acrylates were slightly yellow viscose liquids. Their composition characterized by FTIR and H-1-NMR spectroscopy and their molecular weights were measured by GPC. All the synthesized samples were diluted with 25 wt.% 1.4-butanediol dimethacrylate (BDDM). The rheological properties of the uncured samples and the dynamic mechanical properties of the UV cured samples were examined. All the samples exhibit Newtonian behavior, which indicates the absence of physical entanglements in these polymers. The viscosity increases with increasing number of acrylic groups per molecule. The glass transition temperature of the UV cured samples increases with increasing the number of acrylic groups per molecule. The value of the storage modulus in the rubber-elastic plateau and the cross-link density increase with increasing number of acrylic groups per molecule. The formed networks are inhomogeneous and the residual unsaturation is the highest in the samples with the largest number of acrylic groups per molecule.",
journal = "Journal of the Serbian Chemical Society",
title = "Dynamical mechanical analysis of photocrosslinked hyperbranched urethane acrylates",
volume = "69",
number = "6",
pages = "441-453",
doi = "10.2298/JSC0406441D"
}

Džunuzović, E. S., Tasic, S., Bozic, B., Babić, D.,& Dunjic, B.. (2004). Dynamical mechanical analysis of photocrosslinked hyperbranched urethane acrylates. in Journal of the Serbian Chemical Society, 69(6), 441-453.
https://doi.org/10.2298/JSC0406441D

Džunuzović ES, Tasic S, Bozic B, Babić D, Dunjic B. Dynamical mechanical analysis of photocrosslinked hyperbranched urethane acrylates. in Journal of the Serbian Chemical Society. 2004;69(6):441-453.
doi:10.2298/JSC0406441D .

Džunuzović, Enis S., Tasic, S, Bozic, B, Babić, Dragan, Dunjic, B, "Dynamical mechanical analysis of photocrosslinked hyperbranched urethane acrylates" in Journal of the Serbian Chemical Society, 69, no. 6 (2004):441-453,
https://doi.org/10.2298/JSC0406441D . .

TY  - JOUR
AU  - Belošević-Čavor, Jelena
AU  - Ivanović, Nenad
AU  - Babić, Dragan
AU  - Andrić, Velibor
AU  - Novaković, Nikola
AU  - Radisavljević, Ivana
AU  - Cekić, Božidar Đ.
AU  - Manasijević, Miodrag
AU  - Milošević, Zoran
PY  - 2003
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6353
AB  - X-ray fluorescence and DTA-specific heat measurements were performed on several samples of the Hf-Fe phase system, at 50:50%, and 33:67% concentrations. In the first concentration range the possibility of an ordered compound formation has still been unresolved. In the second, a strong dependence of structure and magnetic properties on various external parameters has been found. The presented investigations provide some additional data about the concentration and temperature dependence of structural and magnetic stability in these two particularly interesting domains of concentration of the system.
T2  - Materials Science Forum
T1  - Concentration and temperature stability of some structural and magnetic phases in the Hf-Fe system
VL  - 413
SP  - 175
EP  - 178
UR  - https://hdl.handle.net/21.15107/rcub_vinar_6353
ER  - 

@article{
author = "Belošević-Čavor, Jelena and Ivanović, Nenad and Babić, Dragan and Andrić, Velibor and Novaković, Nikola and Radisavljević, Ivana and Cekić, Božidar Đ. and Manasijević, Miodrag and Milošević, Zoran",
year = "2003",
abstract = "X-ray fluorescence and DTA-specific heat measurements were performed on several samples of the Hf-Fe phase system, at 50:50%, and 33:67% concentrations. In the first concentration range the possibility of an ordered compound formation has still been unresolved. In the second, a strong dependence of structure and magnetic properties on various external parameters has been found. The presented investigations provide some additional data about the concentration and temperature dependence of structural and magnetic stability in these two particularly interesting domains of concentration of the system.",
journal = "Materials Science Forum",
title = "Concentration and temperature stability of some structural and magnetic phases in the Hf-Fe system",
volume = "413",
pages = "175-178",
url = "https://hdl.handle.net/21.15107/rcub_vinar_6353"
}

Belošević-Čavor, J., Ivanović, N., Babić, D., Andrić, V., Novaković, N., Radisavljević, I., Cekić, B. Đ., Manasijević, M.,& Milošević, Z.. (2003). Concentration and temperature stability of some structural and magnetic phases in the Hf-Fe system. in Materials Science Forum, 413, 175-178.
https://hdl.handle.net/21.15107/rcub_vinar_6353

Belošević-Čavor J, Ivanović N, Babić D, Andrić V, Novaković N, Radisavljević I, Cekić BĐ, Manasijević M, Milošević Z. Concentration and temperature stability of some structural and magnetic phases in the Hf-Fe system. in Materials Science Forum. 2003;413:175-178.
https://hdl.handle.net/21.15107/rcub_vinar_6353 .

Belošević-Čavor, Jelena, Ivanović, Nenad, Babić, Dragan, Andrić, Velibor, Novaković, Nikola, Radisavljević, Ivana, Cekić, Božidar Đ., Manasijević, Miodrag, Milošević, Zoran, "Concentration and temperature stability of some structural and magnetic phases in the Hf-Fe system" in Materials Science Forum, 413 (2003):175-178,
https://hdl.handle.net/21.15107/rcub_vinar_6353 .

TY  - JOUR
AU  - Marinović-Cincović, Milena
AU  - Kačarević-Popović, Zorica M.
AU  - Babić, Dragan
PY  - 2003
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6368
AB  - The heat properties of gamma-ray crosslinked polyethylene are determined by differential scanning calorimetry (DSC). The changes in the supermolecular structure are evaluated and correlated to the heterogeneous distribution of crosslinks in polymer structure caused by the specific early excitation process. The nonlinear change in enthalpy of fusion, peak melting temperature, activation energy of ordering transition, number of defects, and maximal specific heat capacity with absorbed dose is explained in terms of separated crosslinking processes, fast on the lamellae surfaces and slow in the crystal core at double bond site that is evident for absorbed dose greater than 1000 kGy. (C) 2003 Elsevier Science Ltd. All rights reserved.
T2  - Radiation Physics and Chemistry
T1  - Structural changes in highly crosslinked polyethylene irradiated in absence of oxygen
VL  - 67
IS  - 3-4
SP  - 425
EP  - 429
DO  - 10.1016/S0969-806X(03)00079-3
ER  - 

@article{
author = "Marinović-Cincović, Milena and Kačarević-Popović, Zorica M. and Babić, Dragan",
year = "2003",
abstract = "The heat properties of gamma-ray crosslinked polyethylene are determined by differential scanning calorimetry (DSC). The changes in the supermolecular structure are evaluated and correlated to the heterogeneous distribution of crosslinks in polymer structure caused by the specific early excitation process. The nonlinear change in enthalpy of fusion, peak melting temperature, activation energy of ordering transition, number of defects, and maximal specific heat capacity with absorbed dose is explained in terms of separated crosslinking processes, fast on the lamellae surfaces and slow in the crystal core at double bond site that is evident for absorbed dose greater than 1000 kGy. (C) 2003 Elsevier Science Ltd. All rights reserved.",
journal = "Radiation Physics and Chemistry",
title = "Structural changes in highly crosslinked polyethylene irradiated in absence of oxygen",
volume = "67",
number = "3-4",
pages = "425-429",
doi = "10.1016/S0969-806X(03)00079-3"
}

Marinović-Cincović, M., Kačarević-Popović, Z. M.,& Babić, D.. (2003). Structural changes in highly crosslinked polyethylene irradiated in absence of oxygen. in Radiation Physics and Chemistry, 67(3-4), 425-429.
https://doi.org/10.1016/S0969-806X(03)00079-3

Marinović-Cincović M, Kačarević-Popović ZM, Babić D. Structural changes in highly crosslinked polyethylene irradiated in absence of oxygen. in Radiation Physics and Chemistry. 2003;67(3-4):425-429.
doi:10.1016/S0969-806X(03)00079-3 .

Marinović-Cincović, Milena, Kačarević-Popović, Zorica M., Babić, Dragan, "Structural changes in highly crosslinked polyethylene irradiated in absence of oxygen" in Radiation Physics and Chemistry, 67, no. 3-4 (2003):425-429,
https://doi.org/10.1016/S0969-806X(03)00079-3 . .

TY  - JOUR
AU  - Marinović-Cincović, Milena
AU  - Babić, Dragan
AU  - Jovanovic, R
AU  - Popov-Pergal, Katarina
AU  - Pergal, Miroslav
PY  - 2003
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2653
AB  - Different polyimide resins were synthesized using 1,6-bis-maleimidohexane and the following compounds with terminal amino groups: 4,4-diaminodiphenylmethane, 4,4-diaminodiphenylsulphone, 1,4-bis-(3-aminopropyl)-piperazine and 4,4NN-bismaleimidodiphenylsulphone and 1,2-diaminoehtane and 1,4-bis-(3-aminopropyl)-piperazine. The thermal and thermooxidative behaviour of the polyimide resins was studied by thermogravimetric measurements (TG) in oxygen and nitrogen. Polyimide resins have been irradiated and their radiation stability evaluated on the basis of thermal and thermooxidative behaviour of irradiated samples. (C) 2003 Elsevier Ltd. All rights reserved.
T2  - Polymer Degradation and Stability
T1  - Thermal, oxidative and radiation stability of polyimides - II. Polyimides based on bismaleimidohexane and bismaleimidodiphenylsulphone with different diamines
VL  - 81
IS  - 3
SP  - 387
EP  - 392
DO  - 10.1016/S0141-3910(03)00121-6
ER  - 

@article{
author = "Marinović-Cincović, Milena and Babić, Dragan and Jovanovic, R and Popov-Pergal, Katarina and Pergal, Miroslav",
year = "2003",
abstract = "Different polyimide resins were synthesized using 1,6-bis-maleimidohexane and the following compounds with terminal amino groups: 4,4-diaminodiphenylmethane, 4,4-diaminodiphenylsulphone, 1,4-bis-(3-aminopropyl)-piperazine and 4,4NN-bismaleimidodiphenylsulphone and 1,2-diaminoehtane and 1,4-bis-(3-aminopropyl)-piperazine. The thermal and thermooxidative behaviour of the polyimide resins was studied by thermogravimetric measurements (TG) in oxygen and nitrogen. Polyimide resins have been irradiated and their radiation stability evaluated on the basis of thermal and thermooxidative behaviour of irradiated samples. (C) 2003 Elsevier Ltd. All rights reserved.",
journal = "Polymer Degradation and Stability",
title = "Thermal, oxidative and radiation stability of polyimides - II. Polyimides based on bismaleimidohexane and bismaleimidodiphenylsulphone with different diamines",
volume = "81",
number = "3",
pages = "387-392",
doi = "10.1016/S0141-3910(03)00121-6"
}

Marinović-Cincović, M., Babić, D., Jovanovic, R., Popov-Pergal, K.,& Pergal, M.. (2003). Thermal, oxidative and radiation stability of polyimides - II. Polyimides based on bismaleimidohexane and bismaleimidodiphenylsulphone with different diamines. in Polymer Degradation and Stability, 81(3), 387-392.
https://doi.org/10.1016/S0141-3910(03)00121-6

Marinović-Cincović M, Babić D, Jovanovic R, Popov-Pergal K, Pergal M. Thermal, oxidative and radiation stability of polyimides - II. Polyimides based on bismaleimidohexane and bismaleimidodiphenylsulphone with different diamines. in Polymer Degradation and Stability. 2003;81(3):387-392.
doi:10.1016/S0141-3910(03)00121-6 .

Marinović-Cincović, Milena, Babić, Dragan, Jovanovic, R, Popov-Pergal, Katarina, Pergal, Miroslav, "Thermal, oxidative and radiation stability of polyimides - II. Polyimides based on bismaleimidohexane and bismaleimidodiphenylsulphone with different diamines" in Polymer Degradation and Stability, 81, no. 3 (2003):387-392,
https://doi.org/10.1016/S0141-3910(03)00121-6 . .

TY  - JOUR
AU  - Babić, Dragan
AU  - Nikolic, R
AU  - Gadžurić, Slobodan
AU  - Zsigrai, Istvan J.
PY  - 2001
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2505
AB  - Specific conductivity of molten mixtures of acetamide with following acetate salts was measured at 83 +/- 0.1degreesC : a) acetamide - anhydrous sodium acetate (up to 0.051 mole fraction), b) acetainide sodium acetate trihydrate (entire concentration range) and c) acetamide - zinc acetate dihydrate ( up to 0.24 mole fraction). Selected composition of all three mixtures, with low melting points were chosen for the studies of the changes of conductance with temperature. The mixtures: with sodium acetate both anhydrous and hydrated showed fairly high specific conductivity (approximate to10(-2) S/cm), nearly two orders of magnitude higher than the mixture with hydrated zinc acetate. Molar conductivity was also calculated. The results were discussed in terms of acetamide-salt-water interactions. Attempts were made to calculate the degree of dissociation of the salts in molten acetamide. The results were compared with the data obtained from earlier thermochemical studies of the same melt systems.
T2  - High Temperature Material Processes
T1  - Electrical conductivity of the acetamide-acetate salt melts
VL  - 5
IS  - 4
SP  - 595
EP  - 602
UR  - https://hdl.handle.net/21.15107/rcub_vinar_2505
ER  - 

@article{
author = "Babić, Dragan and Nikolic, R and Gadžurić, Slobodan and Zsigrai, Istvan J.",
year = "2001",
abstract = "Specific conductivity of molten mixtures of acetamide with following acetate salts was measured at 83 +/- 0.1degreesC : a) acetamide - anhydrous sodium acetate (up to 0.051 mole fraction), b) acetainide sodium acetate trihydrate (entire concentration range) and c) acetamide - zinc acetate dihydrate ( up to 0.24 mole fraction). Selected composition of all three mixtures, with low melting points were chosen for the studies of the changes of conductance with temperature. The mixtures: with sodium acetate both anhydrous and hydrated showed fairly high specific conductivity (approximate to10(-2) S/cm), nearly two orders of magnitude higher than the mixture with hydrated zinc acetate. Molar conductivity was also calculated. The results were discussed in terms of acetamide-salt-water interactions. Attempts were made to calculate the degree of dissociation of the salts in molten acetamide. The results were compared with the data obtained from earlier thermochemical studies of the same melt systems.",
journal = "High Temperature Material Processes",
title = "Electrical conductivity of the acetamide-acetate salt melts",
volume = "5",
number = "4",
pages = "595-602",
url = "https://hdl.handle.net/21.15107/rcub_vinar_2505"
}

Babić, D., Nikolic, R., Gadžurić, S.,& Zsigrai, I. J.. (2001). Electrical conductivity of the acetamide-acetate salt melts. in High Temperature Material Processes, 5(4), 595-602.
https://hdl.handle.net/21.15107/rcub_vinar_2505

Babić D, Nikolic R, Gadžurić S, Zsigrai IJ. Electrical conductivity of the acetamide-acetate salt melts. in High Temperature Material Processes. 2001;5(4):595-602.
https://hdl.handle.net/21.15107/rcub_vinar_2505 .

Babić, Dragan, Nikolic, R, Gadžurić, Slobodan, Zsigrai, Istvan J., "Electrical conductivity of the acetamide-acetate salt melts" in High Temperature Material Processes, 5, no. 4 (2001):595-602,
https://hdl.handle.net/21.15107/rcub_vinar_2505 .

TY  - JOUR
AU  - Popov-Pergal, Katarina
AU  - Pergal, Miroslav
AU  - Babić, Dragan
AU  - Marinović-Cincović, Milena
AU  - Jovanovic, R
PY  - 2000
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2316
AB  - The syntheses of 1,2-ethane-bis-maleamidoacid, N,N-1,2-bis-maleimidoethane (BME), and polyimide resins based on BME and four different diamines are given. The thermal and thermooxidative stability of the resins was studied by thermogravimetry (TG) following parameters such as temperatures for defined weight loss and initial decomposition rate, i.e. shape of TG and first derivative TG curves. Samples have been irradiated and their radiation stability evaluated on the basis of the thermal and thermooxidative behavior of the irradiated samples. The thermal behaviors have been analyzed and the resin based on the diamine with the benzene ring showed the best thermal stability. Radiation in the applied dose range showed an increase of thermal stability. (C) 2000 Elsevier Science Ltd. All rights reserved.
T2  - Polymer Degradation and Stability
T1  - Thermal, oxidative and radiation stability of polyimides I. Bismaleimidoethane and different diamine-based polyimides
VL  - 67
IS  - 3
SP  - 547
EP  - 552
DO  - 10.1016/S0141-3910(99)00158-5
ER  - 

@article{
author = "Popov-Pergal, Katarina and Pergal, Miroslav and Babić, Dragan and Marinović-Cincović, Milena and Jovanovic, R",
year = "2000",
abstract = "The syntheses of 1,2-ethane-bis-maleamidoacid, N,N-1,2-bis-maleimidoethane (BME), and polyimide resins based on BME and four different diamines are given. The thermal and thermooxidative stability of the resins was studied by thermogravimetry (TG) following parameters such as temperatures for defined weight loss and initial decomposition rate, i.e. shape of TG and first derivative TG curves. Samples have been irradiated and their radiation stability evaluated on the basis of the thermal and thermooxidative behavior of the irradiated samples. The thermal behaviors have been analyzed and the resin based on the diamine with the benzene ring showed the best thermal stability. Radiation in the applied dose range showed an increase of thermal stability. (C) 2000 Elsevier Science Ltd. All rights reserved.",
journal = "Polymer Degradation and Stability",
title = "Thermal, oxidative and radiation stability of polyimides I. Bismaleimidoethane and different diamine-based polyimides",
volume = "67",
number = "3",
pages = "547-552",
doi = "10.1016/S0141-3910(99)00158-5"
}

Popov-Pergal, K., Pergal, M., Babić, D., Marinović-Cincović, M.,& Jovanovic, R.. (2000). Thermal, oxidative and radiation stability of polyimides I. Bismaleimidoethane and different diamine-based polyimides. in Polymer Degradation and Stability, 67(3), 547-552.
https://doi.org/10.1016/S0141-3910(99)00158-5

Popov-Pergal K, Pergal M, Babić D, Marinović-Cincović M, Jovanovic R. Thermal, oxidative and radiation stability of polyimides I. Bismaleimidoethane and different diamine-based polyimides. in Polymer Degradation and Stability. 2000;67(3):547-552.
doi:10.1016/S0141-3910(99)00158-5 .

Popov-Pergal, Katarina, Pergal, Miroslav, Babić, Dragan, Marinović-Cincović, Milena, Jovanovic, R, "Thermal, oxidative and radiation stability of polyimides I. Bismaleimidoethane and different diamine-based polyimides" in Polymer Degradation and Stability, 67, no. 3 (2000):547-552,
https://doi.org/10.1016/S0141-3910(99)00158-5 . .