TY  - CONF
AU  - Pržulj, Sanja
AU  - Veselinović, Gorica
AU  - Ivanišević, Marko
AU  - Gnjato, Slobodan
AU  - Balaban, Milica
AU  - Jovančićević, Branimir
PY  - 2022
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6205
AB  - PAHs are a group of ubiquitous persistent organic pollutants that cause sever global environmental 
concerns for ecosystems and human health due to their potential toxicity and carcinogenicity. PAHs are a group of organic pollutants strongly related to anthropogenic activities such as settlement, transport, and industrial development. Due to their lipophilicity and persistence, PAHs are readily adsorbed in the particulate matter once they enter the urban river system and are finally deposited in the sediment. [1] The aim of this work was to evaluate the distribution of PAHs in the sediments of Vrbas River, to assess their occurrence and to establish the origin 
 (pyrogenic/petrogenic) of pollution sources.This study focussed on investigation on the state of pollution and identification of potential sources of contamination of river sediments by polycyclic aromatic hydrocarbons along entire course of the Vrbas River (Bosnia and Herzegovina). 
Nineteen sampling points were selected covering the entire course of the Vrbas River (Bosnia and 
Herzegovina). The samples were extracted in a Soxhlet apparatus and fractionated using column 
chromatography. In the fraction of aromatic hydrocarbons, PAHs were analysed by gas chromatography - mass spectrometry (GC-MS) in a selected ion monitoring (SIM) mode. The ions 
monitored were: m/z = 128 (naphthalene), m/z = 152 (acenaphthylene), m/z = 154 acenaphthene), 
m/z = 166 (fluorene), m/z = 178 (phenanthrene andanthracene), m/z = 202 (fluoranthene and 
pyrene), m/z = 228 (benzo[a]anthracene and chrysene), m/z = 252 (benzo[b]fluoranthene, 
benzo[k]fluoranthene, benzo[j]fluoranthene, benzo[e]pyrene and benzo[a]pyrene), m/z = 276 
(indeno[1,2,3-c,d]pyrene and benzo[g,h,i]perylene), and m/z = 278 (dibenzo[a,h]anthracene) [2]. Thereafter numerous PAH diagnostic ratios were calculated and analysed. High molecular weight polycyclic aromatic hydrocarbons (4, 5 or 6 rings) are more prevalent in the observed samples. The analysis of different PAH diagnostic ratios indicate the pyrogenic PAHs origin. In most samples, according to calculated parameters, these are combustion products of coal, grass, and wood, while in some samples these parameters implicate the fuel combustion origin of PAHs. No regularity was observed in the distribution of PAHs in the samples, indicating the existence of multiple sources of these compounds in the investigated area. Thus, the conclusion is that 
this area was exposed to both point and diffuse sources of PAH contaminants.
PB  - Belgrade : Materials Research Society of Serbia
C3  - Program and the Book of Abstracts - 23rd Annual Conference YUCOMAT 2022 & 12th World Round Table Conference on Sintering WRTCS 2022, August 29 - September 2, 2022, Herceg Novi, Montenegro
T1  - Study of oil type pollutant adsorption on Vrbas River sediments (Bosnia and Herecgovina)
SP  - 141
EP  - 141
UR  - https://hdl.handle.net/21.15107/rcub_cer_6205
ER  - 

@conference{
author = "Pržulj, Sanja and Veselinović, Gorica and Ivanišević, Marko and Gnjato, Slobodan and Balaban, Milica and Jovančićević, Branimir",
year = "2022",
abstract = "PAHs are a group of ubiquitous persistent organic pollutants that cause sever global environmental 
concerns for ecosystems and human health due to their potential toxicity and carcinogenicity. PAHs are a group of organic pollutants strongly related to anthropogenic activities such as settlement, transport, and industrial development. Due to their lipophilicity and persistence, PAHs are readily adsorbed in the particulate matter once they enter the urban river system and are finally deposited in the sediment. [1] The aim of this work was to evaluate the distribution of PAHs in the sediments of Vrbas River, to assess their occurrence and to establish the origin 
 (pyrogenic/petrogenic) of pollution sources.This study focussed on investigation on the state of pollution and identification of potential sources of contamination of river sediments by polycyclic aromatic hydrocarbons along entire course of the Vrbas River (Bosnia and Herzegovina). 
Nineteen sampling points were selected covering the entire course of the Vrbas River (Bosnia and 
Herzegovina). The samples were extracted in a Soxhlet apparatus and fractionated using column 
chromatography. In the fraction of aromatic hydrocarbons, PAHs were analysed by gas chromatography - mass spectrometry (GC-MS) in a selected ion monitoring (SIM) mode. The ions 
monitored were: m/z = 128 (naphthalene), m/z = 152 (acenaphthylene), m/z = 154 acenaphthene), 
m/z = 166 (fluorene), m/z = 178 (phenanthrene andanthracene), m/z = 202 (fluoranthene and 
pyrene), m/z = 228 (benzo[a]anthracene and chrysene), m/z = 252 (benzo[b]fluoranthene, 
benzo[k]fluoranthene, benzo[j]fluoranthene, benzo[e]pyrene and benzo[a]pyrene), m/z = 276 
(indeno[1,2,3-c,d]pyrene and benzo[g,h,i]perylene), and m/z = 278 (dibenzo[a,h]anthracene) [2]. Thereafter numerous PAH diagnostic ratios were calculated and analysed. High molecular weight polycyclic aromatic hydrocarbons (4, 5 or 6 rings) are more prevalent in the observed samples. The analysis of different PAH diagnostic ratios indicate the pyrogenic PAHs origin. In most samples, according to calculated parameters, these are combustion products of coal, grass, and wood, while in some samples these parameters implicate the fuel combustion origin of PAHs. No regularity was observed in the distribution of PAHs in the samples, indicating the existence of multiple sources of these compounds in the investigated area. Thus, the conclusion is that 
this area was exposed to both point and diffuse sources of PAH contaminants.",
publisher = "Belgrade : Materials Research Society of Serbia",
journal = "Program and the Book of Abstracts - 23rd Annual Conference YUCOMAT 2022 & 12th World Round Table Conference on Sintering WRTCS 2022, August 29 - September 2, 2022, Herceg Novi, Montenegro",
title = "Study of oil type pollutant adsorption on Vrbas River sediments (Bosnia and Herecgovina)",
pages = "141-141",
url = "https://hdl.handle.net/21.15107/rcub_cer_6205"
}

Pržulj, S., Veselinović, G., Ivanišević, M., Gnjato, S., Balaban, M.,& Jovančićević, B.. (2022). Study of oil type pollutant adsorption on Vrbas River sediments (Bosnia and Herecgovina). in Program and the Book of Abstracts - 23rd Annual Conference YUCOMAT 2022 & 12th World Round Table Conference on Sintering WRTCS 2022, August 29 - September 2, 2022, Herceg Novi, Montenegro
Belgrade : Materials Research Society of Serbia., 141-141.
https://hdl.handle.net/21.15107/rcub_cer_6205

Pržulj S, Veselinović G, Ivanišević M, Gnjato S, Balaban M, Jovančićević B. Study of oil type pollutant adsorption on Vrbas River sediments (Bosnia and Herecgovina). in Program and the Book of Abstracts - 23rd Annual Conference YUCOMAT 2022 & 12th World Round Table Conference on Sintering WRTCS 2022, August 29 - September 2, 2022, Herceg Novi, Montenegro. 2022;:141-141.
https://hdl.handle.net/21.15107/rcub_cer_6205 .

Pržulj, Sanja, Veselinović, Gorica, Ivanišević, Marko, Gnjato, Slobodan, Balaban, Milica, Jovančićević, Branimir, "Study of oil type pollutant adsorption on Vrbas River sediments (Bosnia and Herecgovina)" in Program and the Book of Abstracts - 23rd Annual Conference YUCOMAT 2022 & 12th World Round Table Conference on Sintering WRTCS 2022, August 29 - September 2, 2022, Herceg Novi, Montenegro (2022):141-141,
https://hdl.handle.net/21.15107/rcub_cer_6205 .

TY  - JOUR
AU  - Samelak, Ivan
AU  - Balaban, Milica
AU  - Antić, Mališa
AU  - Šolević Knudsen, Tatjana
AU  - Jovančićević, Branimir
PY  - 2020
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3373
AB  - Many pollution sources are difficult to identify because pollutants are transported far away into complex environments. In particular, the mechanisms of petroleum migration in sediments are poorly known. Here, we studied two sediments from the circuit of a heating plant and three sediments located at 100, 200 and 300 m away from the plant. Saturated hydrocarbons were isolated and group composition was determined by column chromatography. n-Alkanes, terpanes and steranes were analyzed by gas chromatography-mass spectrometry. Results show that the amount of short n-alkanes increases during migration, which indicates the migration mechanism. Results on steranes reveal a geochromatographic migration of the oil, where the fastest eluting stereoisomers display the longest migration path. Changes in the distribution of biological markers are explained by migration in water.
PB  - Springer Science and Business Media LLC
T2  - Environmental Chemistry Letters
T1  - Geochromatographic migration of oil pollution from a heating plant to river sediments
VL  - 18
SP  - 459
EP  - 466
DO  - 10.1007/s10311-019-00937-2
ER  - 

@article{
author = "Samelak, Ivan and Balaban, Milica and Antić, Mališa and Šolević Knudsen, Tatjana and Jovančićević, Branimir",
year = "2020",
abstract = "Many pollution sources are difficult to identify because pollutants are transported far away into complex environments. In particular, the mechanisms of petroleum migration in sediments are poorly known. Here, we studied two sediments from the circuit of a heating plant and three sediments located at 100, 200 and 300 m away from the plant. Saturated hydrocarbons were isolated and group composition was determined by column chromatography. n-Alkanes, terpanes and steranes were analyzed by gas chromatography-mass spectrometry. Results show that the amount of short n-alkanes increases during migration, which indicates the migration mechanism. Results on steranes reveal a geochromatographic migration of the oil, where the fastest eluting stereoisomers display the longest migration path. Changes in the distribution of biological markers are explained by migration in water.",
publisher = "Springer Science and Business Media LLC",
journal = "Environmental Chemistry Letters",
title = "Geochromatographic migration of oil pollution from a heating plant to river sediments",
volume = "18",
pages = "459-466",
doi = "10.1007/s10311-019-00937-2"
}

Samelak, I., Balaban, M., Antić, M., Šolević Knudsen, T.,& Jovančićević, B.. (2020). Geochromatographic migration of oil pollution from a heating plant to river sediments. in Environmental Chemistry Letters
Springer Science and Business Media LLC., 18, 459-466.
https://doi.org/10.1007/s10311-019-00937-2

Samelak I, Balaban M, Antić M, Šolević Knudsen T, Jovančićević B. Geochromatographic migration of oil pollution from a heating plant to river sediments. in Environmental Chemistry Letters. 2020;18:459-466.
doi:10.1007/s10311-019-00937-2 .

Samelak, Ivan, Balaban, Milica, Antić, Mališa, Šolević Knudsen, Tatjana, Jovančićević, Branimir, "Geochromatographic migration of oil pollution from a heating plant to river sediments" in Environmental Chemistry Letters, 18 (2020):459-466,
https://doi.org/10.1007/s10311-019-00937-2 . .

TY  - CHAP
AU  - Balaban, Milica
AU  - Pergal, Marija
AU  - Manojlović, Dragan
PY  - 2018
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/5802
AB  - Thermoplastic copolyester elastomers (TPEE) are a category of important industrial polymeric materials, receiving increasing attention in both commercial manufacturing and academic circles. This chapter provides the synthesis, structure, properties and applications of TPEEs. TPEEs belong to the class of thermoplastic elastomers which combine mechanical properties of chemically crosslinked elastomers with those of thermoplastics. Thermoplastic copolyester elastomers are multiblock copolymers of chemically different hard (polyester) and soft (polyether)
segments connected by ester linkages. Owing to their segmented structure and a two-phase microstructure, they have superior mechanical properties. The properties of TPEEs depend on the chemical nature and incompatibility of the hard and soft segments, as well as on their weight 
ratio and respective lengths. TPEEs ranging from soft to hard elastomers can be obtained by varying the hard or soft segment content, the length of the soft segments and/or the degree of crystallinity of the hard segments. Due to the high performance properties of TPEEs, an extensive section on mechanical, thermal and chemical properties is presented. The recent developments of TPEE materials, such as nanocomposites and blends, as well as biodegradable TPEEs, are also addressed. Processing, recycling possibilities and the future trends in TPEEs development are also discussed.
PB  - Nova Science
T2  - Polyester: Synthesis, Types and Applications
T1  - Thermoplastic Copolyester Elastomers, Their Structural Diversity and Applications
SP  - 1
EP  - 55
UR  - https://hdl.handle.net/21.15107/rcub_cer_5802
ER  - 

@inbook{
author = "Balaban, Milica and Pergal, Marija and Manojlović, Dragan",
year = "2018",
abstract = "Thermoplastic copolyester elastomers (TPEE) are a category of important industrial polymeric materials, receiving increasing attention in both commercial manufacturing and academic circles. This chapter provides the synthesis, structure, properties and applications of TPEEs. TPEEs belong to the class of thermoplastic elastomers which combine mechanical properties of chemically crosslinked elastomers with those of thermoplastics. Thermoplastic copolyester elastomers are multiblock copolymers of chemically different hard (polyester) and soft (polyether)
segments connected by ester linkages. Owing to their segmented structure and a two-phase microstructure, they have superior mechanical properties. The properties of TPEEs depend on the chemical nature and incompatibility of the hard and soft segments, as well as on their weight 
ratio and respective lengths. TPEEs ranging from soft to hard elastomers can be obtained by varying the hard or soft segment content, the length of the soft segments and/or the degree of crystallinity of the hard segments. Due to the high performance properties of TPEEs, an extensive section on mechanical, thermal and chemical properties is presented. The recent developments of TPEE materials, such as nanocomposites and blends, as well as biodegradable TPEEs, are also addressed. Processing, recycling possibilities and the future trends in TPEEs development are also discussed.",
publisher = "Nova Science",
journal = "Polyester: Synthesis, Types and Applications",
booktitle = "Thermoplastic Copolyester Elastomers, Their Structural Diversity and Applications",
pages = "1-55",
url = "https://hdl.handle.net/21.15107/rcub_cer_5802"
}

Balaban, M., Pergal, M.,& Manojlović, D.. (2018). Thermoplastic Copolyester Elastomers, Their Structural Diversity and Applications. in Polyester: Synthesis, Types and Applications
Nova Science., 1-55.
https://hdl.handle.net/21.15107/rcub_cer_5802

Balaban M, Pergal M, Manojlović D. Thermoplastic Copolyester Elastomers, Their Structural Diversity and Applications. in Polyester: Synthesis, Types and Applications. 2018;:1-55.
https://hdl.handle.net/21.15107/rcub_cer_5802 .

Balaban, Milica, Pergal, Marija, Manojlović, Dragan, "Thermoplastic Copolyester Elastomers, Their Structural Diversity and Applications" in Polyester: Synthesis, Types and Applications (2018):1-55,
https://hdl.handle.net/21.15107/rcub_cer_5802 .

TY  - CHAP
AU  - Pergal, Marija
AU  - Balaban, Milica
AU  - Stanković, Dalibor
AU  - Petković, Branka B.
PY  - 2018
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2404
AB  - Poly(dimethylsiloxane)s (PDMS) have one of the lowest values of glass transition temperature among synthetic polymers, and indicate lowtemperature flexibility, excellent thermal, thermo-oxidative and ultraviolet stability, very low surface energy, high hydrophobicity, high gas permeability and good biocompatibility. α,ω-Difunctionalized (or telechelic) PDMSs of low molecular weights are various starting prepolymers for the preparation of a wide variety of types of PDMSbased segmented copolymers, such as polyurethanes, polyesters, polyamides and polyimides, as well as for the preparation of polymer networks such as epoxy and polyurethane networks. Polymers based on PDMS which combine the specific and unique properties of PDMS with the mechanical strength of organic segments have a wide range of important applications such as elastomers, protective coatings, surfactants, gas separation membranes, photoresists, contact lenses and biomaterials. This chapter surveys the most relevant aspects related to the synthesis, structure and physical properties of PDMS modified segmented copolymers and polymer networks. Influence of the structure and molecular weight of PDMS prepolymers and organic segments on the morphology and properties of the copolymers and polymer networks based on PDMS is discussed. Correlation between composition and microstructure-property behavior of PDMS-based copolymers and polymer networks will be reported in detail. This chapter also discusses PDMS-based blends and reinforcement of PDMS-based copolymers via addition of nanoparticle-based materials and characterization of these PDMS-based blends and nanocomposites. The potential application of PDMS-based materials and future trends in chemistry and synthesis of PDMS-based copolymers and polymer networks will also be given.
PB  - Nova Science
T2  - Advances in Chemistry Research
T1  - Poly(dimethylsiloxane) modified polymers: Synthesis, structure and physical properties
VL  - 43
SP  - 1
EP  - 80
UR  - https://hdl.handle.net/21.15107/rcub_cer_2404
ER  - 

@inbook{
author = "Pergal, Marija and Balaban, Milica and Stanković, Dalibor and Petković, Branka B.",
year = "2018",
abstract = "Poly(dimethylsiloxane)s (PDMS) have one of the lowest values of glass transition temperature among synthetic polymers, and indicate lowtemperature flexibility, excellent thermal, thermo-oxidative and ultraviolet stability, very low surface energy, high hydrophobicity, high gas permeability and good biocompatibility. α,ω-Difunctionalized (or telechelic) PDMSs of low molecular weights are various starting prepolymers for the preparation of a wide variety of types of PDMSbased segmented copolymers, such as polyurethanes, polyesters, polyamides and polyimides, as well as for the preparation of polymer networks such as epoxy and polyurethane networks. Polymers based on PDMS which combine the specific and unique properties of PDMS with the mechanical strength of organic segments have a wide range of important applications such as elastomers, protective coatings, surfactants, gas separation membranes, photoresists, contact lenses and biomaterials. This chapter surveys the most relevant aspects related to the synthesis, structure and physical properties of PDMS modified segmented copolymers and polymer networks. Influence of the structure and molecular weight of PDMS prepolymers and organic segments on the morphology and properties of the copolymers and polymer networks based on PDMS is discussed. Correlation between composition and microstructure-property behavior of PDMS-based copolymers and polymer networks will be reported in detail. This chapter also discusses PDMS-based blends and reinforcement of PDMS-based copolymers via addition of nanoparticle-based materials and characterization of these PDMS-based blends and nanocomposites. The potential application of PDMS-based materials and future trends in chemistry and synthesis of PDMS-based copolymers and polymer networks will also be given.",
publisher = "Nova Science",
journal = "Advances in Chemistry Research",
booktitle = "Poly(dimethylsiloxane) modified polymers: Synthesis, structure and physical properties",
volume = "43",
pages = "1-80",
url = "https://hdl.handle.net/21.15107/rcub_cer_2404"
}

Pergal, M., Balaban, M., Stanković, D.,& Petković, B. B.. (2018). Poly(dimethylsiloxane) modified polymers: Synthesis, structure and physical properties. in Advances in Chemistry Research
Nova Science., 43, 1-80.
https://hdl.handle.net/21.15107/rcub_cer_2404

Pergal M, Balaban M, Stanković D, Petković BB. Poly(dimethylsiloxane) modified polymers: Synthesis, structure and physical properties. in Advances in Chemistry Research. 2018;43:1-80.
https://hdl.handle.net/21.15107/rcub_cer_2404 .

Pergal, Marija, Balaban, Milica, Stanković, Dalibor, Petković, Branka B., "Poly(dimethylsiloxane) modified polymers: Synthesis, structure and physical properties" in Advances in Chemistry Research, 43 (2018):1-80,
https://hdl.handle.net/21.15107/rcub_cer_2404 .

TY  - DATA
AU  - Samelak, Ivan
AU  - Balaban, Milica
AU  - Vidovic, Nada
AU  - Koljancic, Nemanja
AU  - Antić, Mališa
AU  - Šolević Knudsen, Tatjana
AU  - Jovančićević, Branimir
PY  - 2018
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/4478
AB  - Samples; Fig. S-1. Flow of the Vrbas River with the sampling locations of the river sediments, RS1– RS4, and the riverbank sediments (soils), S1–S4. TABLE S-I. Identification of representative sterane and terpane peaks in fragmentograms m/z 217 and m/z 191 shown in Fig. S-1b and c.Fig. S-2. Fragmentograms of n-alkanes (m/z 71), steranes (m/z 217) and terpanes (m/z 191) of the RS1 and S1 samples, which are typical for the extracts of the investigated fresh river sediments and soils. Fig. S-3. Fragmentograms of n-alkanes (m/z 71), steranes (m/z 217) and terpanes (m/z 191) of the river sediments samples, RS1-RS4 and bank sediments (soils) samples, S1–S4.
PB  - Serbian Chemical Society
T2  - Journal of the Serbian Chemical Society
T1  - Supplementary material to: "Application of alkane biological markers in the assessment of the origin of oil pollutants in the soil and recent river sediments (River Vrbas, Bosnia and Herzegovina)"
UR  - https://hdl.handle.net/21.15107/rcub_cer_4478
ER  - 

@misc{
author = "Samelak, Ivan and Balaban, Milica and Vidovic, Nada and Koljancic, Nemanja and Antić, Mališa and Šolević Knudsen, Tatjana and Jovančićević, Branimir",
year = "2018",
abstract = "Samples; Fig. S-1. Flow of the Vrbas River with the sampling locations of the river sediments, RS1– RS4, and the riverbank sediments (soils), S1–S4. TABLE S-I. Identification of representative sterane and terpane peaks in fragmentograms m/z 217 and m/z 191 shown in Fig. S-1b and c.Fig. S-2. Fragmentograms of n-alkanes (m/z 71), steranes (m/z 217) and terpanes (m/z 191) of the RS1 and S1 samples, which are typical for the extracts of the investigated fresh river sediments and soils. Fig. S-3. Fragmentograms of n-alkanes (m/z 71), steranes (m/z 217) and terpanes (m/z 191) of the river sediments samples, RS1-RS4 and bank sediments (soils) samples, S1–S4.",
publisher = "Serbian Chemical Society",
journal = "Journal of the Serbian Chemical Society",
title = "Supplementary material to: "Application of alkane biological markers in the assessment of the origin of oil pollutants in the soil and recent river sediments (River Vrbas, Bosnia and Herzegovina)"",
url = "https://hdl.handle.net/21.15107/rcub_cer_4478"
}

Samelak, I., Balaban, M., Vidovic, N., Koljancic, N., Antić, M., Šolević Knudsen, T.,& Jovančićević, B.. (2018). Supplementary material to: "Application of alkane biological markers in the assessment of the origin of oil pollutants in the soil and recent river sediments (River Vrbas, Bosnia and Herzegovina)". in Journal of the Serbian Chemical Society
Serbian Chemical Society..
https://hdl.handle.net/21.15107/rcub_cer_4478

Samelak I, Balaban M, Vidovic N, Koljancic N, Antić M, Šolević Knudsen T, Jovančićević B. Supplementary material to: "Application of alkane biological markers in the assessment of the origin of oil pollutants in the soil and recent river sediments (River Vrbas, Bosnia and Herzegovina)". in Journal of the Serbian Chemical Society. 2018;.
https://hdl.handle.net/21.15107/rcub_cer_4478 .

Samelak, Ivan, Balaban, Milica, Vidovic, Nada, Koljancic, Nemanja, Antić, Mališa, Šolević Knudsen, Tatjana, Jovančićević, Branimir, "Supplementary material to: "Application of alkane biological markers in the assessment of the origin of oil pollutants in the soil and recent river sediments (River Vrbas, Bosnia and Herzegovina)"" in Journal of the Serbian Chemical Society (2018),
https://hdl.handle.net/21.15107/rcub_cer_4478 .

TY  - JOUR
AU  - Samelak, Ivan
AU  - Balaban, Milica
AU  - Vidovic, Nada
AU  - Koljancic, Nemanja
AU  - Antić, Mališa
AU  - Šolević Knudsen, Tatjana
AU  - Jovančićević, Branimir
PY  - 2018
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2376
AB  - In this paper, an attempt was made to contribute to the use of biological markers, n-alkanes, and polycyclic alkanes of the sterane and terpane type, in the assessment of the source of oil pollutants in the environment using the example of the correlation between recent river and coastal sediments,. Four samples of recent river sediments of the Vrbas River and four samples of adjacent bank sediments (soils), in the part of the River that belongs to the city of Banja Luka (Bosnia and Herzegovina) were analyzed. In the alkane fractions of isolated extracts, a bimodal distribution of the n-alkanes was observed. Lower homologues dominated in the recent river sediments with maximum at C15, but higher n-alkanes dominated in the soil samples, with a maximum at n-C29 or at n-C31. The higher concentration of steranes and terpanes with oil type distributions in the recent/fresh river sediments (compared to the bank sediments) represents evidence that lower n-alkanes originate from oil sources. The higher content of total hydrocarbons in the recent river sediments than in the bank sediments further confirms this conclusion. At the same time, these fundamental considerations provide evidence that oil pollution primarily occurred in the water flow and then the oil pollutants propagated towards the riverbank.
PB  - Serbian Chemical Soc, Belgrade
T2  - Journal of the Serbian Chemical Society
T1  - Application of alkane biological markers in the assessment of the origin of oil pollutants in the soil and recent river sediments (River Vrbas, Bosnia and Herzegovina)
VL  - 83
IS  - 10
SP  - 1167
EP  - 1175
DO  - 10.2298/JSC180501061S
ER  - 

@article{
author = "Samelak, Ivan and Balaban, Milica and Vidovic, Nada and Koljancic, Nemanja and Antić, Mališa and Šolević Knudsen, Tatjana and Jovančićević, Branimir",
year = "2018",
abstract = "In this paper, an attempt was made to contribute to the use of biological markers, n-alkanes, and polycyclic alkanes of the sterane and terpane type, in the assessment of the source of oil pollutants in the environment using the example of the correlation between recent river and coastal sediments,. Four samples of recent river sediments of the Vrbas River and four samples of adjacent bank sediments (soils), in the part of the River that belongs to the city of Banja Luka (Bosnia and Herzegovina) were analyzed. In the alkane fractions of isolated extracts, a bimodal distribution of the n-alkanes was observed. Lower homologues dominated in the recent river sediments with maximum at C15, but higher n-alkanes dominated in the soil samples, with a maximum at n-C29 or at n-C31. The higher concentration of steranes and terpanes with oil type distributions in the recent/fresh river sediments (compared to the bank sediments) represents evidence that lower n-alkanes originate from oil sources. The higher content of total hydrocarbons in the recent river sediments than in the bank sediments further confirms this conclusion. At the same time, these fundamental considerations provide evidence that oil pollution primarily occurred in the water flow and then the oil pollutants propagated towards the riverbank.",
publisher = "Serbian Chemical Soc, Belgrade",
journal = "Journal of the Serbian Chemical Society",
title = "Application of alkane biological markers in the assessment of the origin of oil pollutants in the soil and recent river sediments (River Vrbas, Bosnia and Herzegovina)",
volume = "83",
number = "10",
pages = "1167-1175",
doi = "10.2298/JSC180501061S"
}

Samelak, I., Balaban, M., Vidovic, N., Koljancic, N., Antić, M., Šolević Knudsen, T.,& Jovančićević, B.. (2018). Application of alkane biological markers in the assessment of the origin of oil pollutants in the soil and recent river sediments (River Vrbas, Bosnia and Herzegovina). in Journal of the Serbian Chemical Society
Serbian Chemical Soc, Belgrade., 83(10), 1167-1175.
https://doi.org/10.2298/JSC180501061S

Samelak I, Balaban M, Vidovic N, Koljancic N, Antić M, Šolević Knudsen T, Jovančićević B. Application of alkane biological markers in the assessment of the origin of oil pollutants in the soil and recent river sediments (River Vrbas, Bosnia and Herzegovina). in Journal of the Serbian Chemical Society. 2018;83(10):1167-1175.
doi:10.2298/JSC180501061S .

Samelak, Ivan, Balaban, Milica, Vidovic, Nada, Koljancic, Nemanja, Antić, Mališa, Šolević Knudsen, Tatjana, Jovančićević, Branimir, "Application of alkane biological markers in the assessment of the origin of oil pollutants in the soil and recent river sediments (River Vrbas, Bosnia and Herzegovina)" in Journal of the Serbian Chemical Society, 83, no. 10 (2018):1167-1175,
https://doi.org/10.2298/JSC180501061S . .

TY  - CHAP
AU  - Pergal, Marija
AU  - Balaban, Milica
PY  - 2017
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/5768
AB  - This chapter deals with a commercially very important part of the polyurethane (PU) polymer family, biodegradable polyurethanes (BioPUs). PUs are multiblock copolymers composed of a high molecular weight macrodiol, called a soft segment, and a hard segment composed of a diisocyanate and a low molecular weight diol. As a result of the thermodynamic incompatibility of 
the hard and soft segments in PU copolymers the phenomenon of microphase separation occurs. Nowadays, it is generally accepted that the overall properties, as well as the biocompatibility, of segmented PU and poly(urethane urea) (PUU) copolymers are correlated to the degree of microphase separation. The thermoplastic and elastic behaviour of these copolymers can be 
explained by their multiphase structure. The elastomeric properties of these copolymers are generally attributed to the phase separation of the hard and soft segments; the hard domains serve as crosslinks and reinforcing fillers in the matrix of the soft segment. It is generally assumed that the soft phase is responsible for the reversible elasticity of the polymeric material, whereas the 
hard phase is responsible for the mechanical strength properties.
PB  - Zagreb, Croatia : IAPC Publishing
T2  - Biodegradable Polymers: recent developments and new perspectives
T1  - Synthesis and structure-property relationships of biodegradable polyurethanes
SP  - 141
EP  - 190
UR  - https://hdl.handle.net/21.15107/rcub_cer_5768
ER  - 

@inbook{
author = "Pergal, Marija and Balaban, Milica",
year = "2017",
abstract = "This chapter deals with a commercially very important part of the polyurethane (PU) polymer family, biodegradable polyurethanes (BioPUs). PUs are multiblock copolymers composed of a high molecular weight macrodiol, called a soft segment, and a hard segment composed of a diisocyanate and a low molecular weight diol. As a result of the thermodynamic incompatibility of 
the hard and soft segments in PU copolymers the phenomenon of microphase separation occurs. Nowadays, it is generally accepted that the overall properties, as well as the biocompatibility, of segmented PU and poly(urethane urea) (PUU) copolymers are correlated to the degree of microphase separation. The thermoplastic and elastic behaviour of these copolymers can be 
explained by their multiphase structure. The elastomeric properties of these copolymers are generally attributed to the phase separation of the hard and soft segments; the hard domains serve as crosslinks and reinforcing fillers in the matrix of the soft segment. It is generally assumed that the soft phase is responsible for the reversible elasticity of the polymeric material, whereas the 
hard phase is responsible for the mechanical strength properties.",
publisher = "Zagreb, Croatia : IAPC Publishing",
journal = "Biodegradable Polymers: recent developments and new perspectives",
booktitle = "Synthesis and structure-property relationships of biodegradable polyurethanes",
pages = "141-190",
url = "https://hdl.handle.net/21.15107/rcub_cer_5768"
}

Pergal, M.,& Balaban, M.. (2017). Synthesis and structure-property relationships of biodegradable polyurethanes. in Biodegradable Polymers: recent developments and new perspectives
Zagreb, Croatia : IAPC Publishing., 141-190.
https://hdl.handle.net/21.15107/rcub_cer_5768

Pergal M, Balaban M. Synthesis and structure-property relationships of biodegradable polyurethanes. in Biodegradable Polymers: recent developments and new perspectives. 2017;:141-190.
https://hdl.handle.net/21.15107/rcub_cer_5768 .

Pergal, Marija, Balaban, Milica, "Synthesis and structure-property relationships of biodegradable polyurethanes" in Biodegradable Polymers: recent developments and new perspectives (2017):141-190,
https://hdl.handle.net/21.15107/rcub_cer_5768 .

TY  - CHAP
AU  - Pergal, Marija
AU  - Balaban, Milica
PY  - 2017
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2231
AB  - This chapter summarizes the synthesis and physicochemical properties of thermoplastic polyester, poly(ethylene terephthalate) (PET). PET, along with poly(butylene terephthalate) (PBT) is an aliphaticaromatic and semicrystalline thermoplastic polyester of prime commercial and industrial importance. Namely, PET is a very important industrial polymer due to its excellent properties such as processability, chemical resistance, high tensile impact strength, high thermal stability and clarity. PET is synthesized from ethylene glycol and terephthalic acid or dimethyl terephthalate by a two-stage polycondensation process. High molecular weight of PET can be achieved by solid-state polymerization. This chapter presents different types of nanoparticles, such as organoclays, carbon nanotubes and carbon black, which are used for the improvement of the physical, mechanical, thermal and barrier properties of PET nanocomposites. It also highlights the recent developments in PET/layered silicate nanocomposites. The blending of PET with other polymers, as an excellent method of preparing materials with enhanced property/cost performance, is described. Processing, recycling and degradation of PET are also presented. This chapter discusses the surface modification of PET by physical treatment, chemical treatment and grafting polymerization in order to modify its surface properties, for enhanced surface wettability, adhesion activities and biocompatibility improvement. Moreover, this chapter also surveys the most relevant aspects related to the preparation and characterization of thermoplastic copolyester elastomers, especially PET and PBT copolyesters. The application potential of PET is discussed and selected examples of commercially available PET are given. Future trends in PET-based material synthesis and design are also discussed.
PB  - Nova Science Publishers, Inc.
T2  - Polyethylene Terephthalate: Uses, Properties and Degradation
T1  - Poly(Ethylene Terephthalate): Synthesis and physicochemical properties
SP  - 1
EP  - 101
UR  - https://hdl.handle.net/21.15107/rcub_cer_2231
ER  - 

@inbook{
author = "Pergal, Marija and Balaban, Milica",
year = "2017",
abstract = "This chapter summarizes the synthesis and physicochemical properties of thermoplastic polyester, poly(ethylene terephthalate) (PET). PET, along with poly(butylene terephthalate) (PBT) is an aliphaticaromatic and semicrystalline thermoplastic polyester of prime commercial and industrial importance. Namely, PET is a very important industrial polymer due to its excellent properties such as processability, chemical resistance, high tensile impact strength, high thermal stability and clarity. PET is synthesized from ethylene glycol and terephthalic acid or dimethyl terephthalate by a two-stage polycondensation process. High molecular weight of PET can be achieved by solid-state polymerization. This chapter presents different types of nanoparticles, such as organoclays, carbon nanotubes and carbon black, which are used for the improvement of the physical, mechanical, thermal and barrier properties of PET nanocomposites. It also highlights the recent developments in PET/layered silicate nanocomposites. The blending of PET with other polymers, as an excellent method of preparing materials with enhanced property/cost performance, is described. Processing, recycling and degradation of PET are also presented. This chapter discusses the surface modification of PET by physical treatment, chemical treatment and grafting polymerization in order to modify its surface properties, for enhanced surface wettability, adhesion activities and biocompatibility improvement. Moreover, this chapter also surveys the most relevant aspects related to the preparation and characterization of thermoplastic copolyester elastomers, especially PET and PBT copolyesters. The application potential of PET is discussed and selected examples of commercially available PET are given. Future trends in PET-based material synthesis and design are also discussed.",
publisher = "Nova Science Publishers, Inc.",
journal = "Polyethylene Terephthalate: Uses, Properties and Degradation",
booktitle = "Poly(Ethylene Terephthalate): Synthesis and physicochemical properties",
pages = "1-101",
url = "https://hdl.handle.net/21.15107/rcub_cer_2231"
}

Pergal, M.,& Balaban, M.. (2017). Poly(Ethylene Terephthalate): Synthesis and physicochemical properties. in Polyethylene Terephthalate: Uses, Properties and Degradation
Nova Science Publishers, Inc.., 1-101.
https://hdl.handle.net/21.15107/rcub_cer_2231

Pergal M, Balaban M. Poly(Ethylene Terephthalate): Synthesis and physicochemical properties. in Polyethylene Terephthalate: Uses, Properties and Degradation. 2017;:1-101.
https://hdl.handle.net/21.15107/rcub_cer_2231 .

Pergal, Marija, Balaban, Milica, "Poly(Ethylene Terephthalate): Synthesis and physicochemical properties" in Polyethylene Terephthalate: Uses, Properties and Degradation (2017):1-101,
https://hdl.handle.net/21.15107/rcub_cer_2231 .

TY  - CHAP
AU  - Pergal, Marija
AU  - Balaban, Milica
AU  - Dojčinović, Biljana
AU  - Manojlović, Dragan
PY  - 2017
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2209
AB  - Thermoplastic polyurethanes (TPUs) are an important class of synthetic polymers with many industrial applications, whose properties can be custom-made by simply adjusting the composition to meet the highly diversified requirements of modern technology. TPUs are multiblock copolymers composed of alternating soft and hard segments. Significant changes of thermal, mechanical, surface, flame retardant and barrier properties of TPUs have been achieved by their combination with different nanoparticles. A large interfacial surface between TPUs and nanoparticles has led to the possibility for new properties to be created. These properties are often demonstrated as being necessary in order to meet all requirements for specific applications. Properties of TPU-based nanocomposites strongly depend on the preparation method, the type and content of hard and soft segments in the TPUs, the type and content of nanoparticles, and intensity of interfacial interactions between the polymer matrix and nanoparticles. In this chapter, recent development on nanocomposites based on TPUs and different types of nanoparticles is presented. The current understanding of nanocomposites based on TPUs is reviewed in this chapter within the following topics: (a) conditions for nanoparticle preparation in order to maximize their good dispersion in the TPU matrix, (b) different methods for preparation of TPU-based nanocomposites and (c) properties of TPU-based nanocomposites depending on the type, size and shape of the incorporated nanoparticles. The research into TPU-based nanocomposites, including fundamental structure-property relationships and potential applications of TPU-based nanocomposites is discussed. In this chapter, future prospects for TPUbased nanocomposites are also presented.
PB  - Nova Science Publishers, Inc.
T2  - Thermoplastic Composites: Emerging Technology, Uses and Prospects
T1  - Thermoplastic polyurethane nanocomposites
SP  - 1
EP  - 60
UR  - https://hdl.handle.net/21.15107/rcub_cherry_316
ER  - 

@inbook{
author = "Pergal, Marija and Balaban, Milica and Dojčinović, Biljana and Manojlović, Dragan",
year = "2017",
abstract = "Thermoplastic polyurethanes (TPUs) are an important class of synthetic polymers with many industrial applications, whose properties can be custom-made by simply adjusting the composition to meet the highly diversified requirements of modern technology. TPUs are multiblock copolymers composed of alternating soft and hard segments. Significant changes of thermal, mechanical, surface, flame retardant and barrier properties of TPUs have been achieved by their combination with different nanoparticles. A large interfacial surface between TPUs and nanoparticles has led to the possibility for new properties to be created. These properties are often demonstrated as being necessary in order to meet all requirements for specific applications. Properties of TPU-based nanocomposites strongly depend on the preparation method, the type and content of hard and soft segments in the TPUs, the type and content of nanoparticles, and intensity of interfacial interactions between the polymer matrix and nanoparticles. In this chapter, recent development on nanocomposites based on TPUs and different types of nanoparticles is presented. The current understanding of nanocomposites based on TPUs is reviewed in this chapter within the following topics: (a) conditions for nanoparticle preparation in order to maximize their good dispersion in the TPU matrix, (b) different methods for preparation of TPU-based nanocomposites and (c) properties of TPU-based nanocomposites depending on the type, size and shape of the incorporated nanoparticles. The research into TPU-based nanocomposites, including fundamental structure-property relationships and potential applications of TPU-based nanocomposites is discussed. In this chapter, future prospects for TPUbased nanocomposites are also presented.",
publisher = "Nova Science Publishers, Inc.",
journal = "Thermoplastic Composites: Emerging Technology, Uses and Prospects",
booktitle = "Thermoplastic polyurethane nanocomposites",
pages = "1-60",
url = "https://hdl.handle.net/21.15107/rcub_cherry_316"
}

Pergal, M., Balaban, M., Dojčinović, B.,& Manojlović, D.. (2017). Thermoplastic polyurethane nanocomposites. in Thermoplastic Composites: Emerging Technology, Uses and Prospects
Nova Science Publishers, Inc.., 1-60.
https://hdl.handle.net/21.15107/rcub_cherry_316

Pergal M, Balaban M, Dojčinović B, Manojlović D. Thermoplastic polyurethane nanocomposites. in Thermoplastic Composites: Emerging Technology, Uses and Prospects. 2017;:1-60.
https://hdl.handle.net/21.15107/rcub_cherry_316 .

Pergal, Marija, Balaban, Milica, Dojčinović, Biljana, Manojlović, Dragan, "Thermoplastic polyurethane nanocomposites" in Thermoplastic Composites: Emerging Technology, Uses and Prospects (2017):1-60,
https://hdl.handle.net/21.15107/rcub_cherry_316 .

TY  - JOUR
AU  - Balaban, Milica
AU  - Antić, Vesna
AU  - Pergal, Marija
AU  - Gođevac, Dejan
AU  - Francolini, Iolanda
AU  - Martinelli, Andrea
AU  - Rogan, Jelena R.
AU  - Đonlagić, Jasna
PY  - 2013
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1204
AB  - Segmented poly(urethane-urea-siloxane)s (PUUS) were synthesized using 4,4'-methylenediphenyl diisocyanate (MDI) and ethylene diamine (ED) as the hard segment components and hydroxypropyl-terminated poly(dimethylsiloxane) (PDMS) as the soft segment component, where the hard segment content ranged from 38 to 65 wt%. Segmented PUUSs were prepared by a two-step polymerization procedure in tetrahydrofuran/N-methylpyrrolidone (THF/NMP) mixture with a large proportion of polar solvent. The structure, composition and hard segment length were determined by C-13 NMR and two-dimensional correlation spectroscopy. Thermal, mechanical, small-angle X-ray scattering and hydrogen bonding analyses indicated the formation of the microphase-separated copolymers with high tensile strength. Globular superstructures observed in the copolymer films by scanning electron microscopy (SEM) and atomic force microscopy (AFM) were probably arisen from the microstructural organization of the MDI-ED segments, depending on their content and length. The PUUS copolymers showed high water resistance and became more hydrophobic with increasing weight fraction of PDMS.
PB  - Springer Verlag
T2  - Polymer Bulletin
T1  - Influence of the chemical structure of poly(urea-urethane-siloxane)s on their morphological, surface and thermal properties
VL  - 70
IS  - 9
SP  - 2493
EP  - 2518
DO  - 10.1007/s00289-013-0968-2
ER  - 

@article{
author = "Balaban, Milica and Antić, Vesna and Pergal, Marija and Gođevac, Dejan and Francolini, Iolanda and Martinelli, Andrea and Rogan, Jelena R. and Đonlagić, Jasna",
year = "2013",
abstract = "Segmented poly(urethane-urea-siloxane)s (PUUS) were synthesized using 4,4'-methylenediphenyl diisocyanate (MDI) and ethylene diamine (ED) as the hard segment components and hydroxypropyl-terminated poly(dimethylsiloxane) (PDMS) as the soft segment component, where the hard segment content ranged from 38 to 65 wt%. Segmented PUUSs were prepared by a two-step polymerization procedure in tetrahydrofuran/N-methylpyrrolidone (THF/NMP) mixture with a large proportion of polar solvent. The structure, composition and hard segment length were determined by C-13 NMR and two-dimensional correlation spectroscopy. Thermal, mechanical, small-angle X-ray scattering and hydrogen bonding analyses indicated the formation of the microphase-separated copolymers with high tensile strength. Globular superstructures observed in the copolymer films by scanning electron microscopy (SEM) and atomic force microscopy (AFM) were probably arisen from the microstructural organization of the MDI-ED segments, depending on their content and length. The PUUS copolymers showed high water resistance and became more hydrophobic with increasing weight fraction of PDMS.",
publisher = "Springer Verlag",
journal = "Polymer Bulletin",
title = "Influence of the chemical structure of poly(urea-urethane-siloxane)s on their morphological, surface and thermal properties",
volume = "70",
number = "9",
pages = "2493-2518",
doi = "10.1007/s00289-013-0968-2"
}

Balaban, M., Antić, V., Pergal, M., Gođevac, D., Francolini, I., Martinelli, A., Rogan, J. R.,& Đonlagić, J.. (2013). Influence of the chemical structure of poly(urea-urethane-siloxane)s on their morphological, surface and thermal properties. in Polymer Bulletin
Springer Verlag., 70(9), 2493-2518.
https://doi.org/10.1007/s00289-013-0968-2

Balaban M, Antić V, Pergal M, Gođevac D, Francolini I, Martinelli A, Rogan JR, Đonlagić J. Influence of the chemical structure of poly(urea-urethane-siloxane)s on their morphological, surface and thermal properties. in Polymer Bulletin. 2013;70(9):2493-2518.
doi:10.1007/s00289-013-0968-2 .

Balaban, Milica, Antić, Vesna, Pergal, Marija, Gođevac, Dejan, Francolini, Iolanda, Martinelli, Andrea, Rogan, Jelena R., Đonlagić, Jasna, "Influence of the chemical structure of poly(urea-urethane-siloxane)s on their morphological, surface and thermal properties" in Polymer Bulletin, 70, no. 9 (2013):2493-2518,
https://doi.org/10.1007/s00289-013-0968-2 . .

TY  - JOUR
AU  - Balaban, Milica
AU  - Antić, Vesna
AU  - Pergal, Marija
AU  - Francolini, Iolanda
AU  - Martinelli, Andrea
AU  - Đonlagić, Jasna
PY  - 2012
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1123
AB  - Segmented poly(urethane-urea-siloxanes) (PUUS) based on 4,4'- methylene diphenyl diisocyanate-ethylene diamine (MDI-ED) hard segments and hydroxypropyl-terminated poly(dimethylsiloxane) (PDMS, Mn = 1000 g mol-1) soft segments were prepared under various experimental conditions. The copolymers with constant molar ratio of hard and soft segments (PDMS:MDI:ED = 1:2:1; 20 wt. % of the hard segments) were synthesized in two different solvent mixtures, by a two-step polyaddition procedure. The first one was tetrahydrofuran/N,N-dimethylacetamide (THF/DMAc) with different co-solvent ratios (1/1, 1/2 and 1/9, v/v), whereas the second one was tetrahydrofuran/N-methylpyrrolidone (THF/NMP, 1/9, v/v). The reaction conditions were optimized by varying the co-solvents ratio, the concentration of the catalyst, the initial monomer concentration, as well as the time of the first and the second step of the reaction. The effects of the experimental conditions on the size of the PUUS were investigated by gel permeation chromatography (GPC) and dilute solution viscometry. The copolymers with the highest molecular weights were obtained in the THF/NMP mixture (1/9, v/v). The structure and composition of the copolymers were determined by 1H-NMR and FTIR spectroscopy. The morphology of the synthesized copolymers was investigated by atomic force microscopy (AFM), while the thermal properties were studied by differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA). The surface properties were evaluated by measuring the water contact angle (WCA). The copolymers exhibited phase-separated microstructure and were stable up to 200°C in nitrogen.
AB  - Segmentirani poli(uretan-urea-siloksani) (PUUS), sa tvrdim segmentima na bazi 4,4'-metilendifenildiizocijanata i etilendiamina (MDI-ED) i mekim segmentima na bazi hidroksipropil-terminiranog poli(dimetilsiloksana) (PDMS, Mn = 1000 g mol-1), sintetisani su pod različitim eksperimentalnim uslovima. Kopolimeri sa konstantnim molskim odnosom tvrdih i mekih segmenata (PDMS:MDI:ED = 1:2:1; 20 mas. % tvrdih segmenata), sintetisani su u dve različite smeše rastvarača kao reakcionog medijuma, metodom dvostepene poliadicije. Prva kombinacija rastvarača je bila smeša tetrahidrofurana (THF) i N,N-dimetilacetamida (DMAc), dok je u drugom slučaju korišćena smeša THF-a i N-metilpirolidona (NMP). Reakcioni uslovi su optimizovani u pogledu odnosa ko-rastvarača, koncentracije katalizatora, početne koncentracije monomera i vremena odigravanja prve i druge faze reakcije. Ispitan je uticaj primenjenih eksperimentalnih uslova na veličinu PUUS primenom gel-propusne hromatografije (GPC) i viskozimetrije razblaženih rastvora [η]. Kopolimeri najvećih molarnih masa su dobijeni u smeši THF/NMP (1/9, v/v). Struktura i sastav kopolimera su okarakterisani 1H-NMR i FTIR spektroskopijom. Morfologija sintetisanih kopolimera je ispitana mikroskopijom atomskih sila (AFM), dok su termička svojstva ispitana diferencijalnom skenirajućom kalorimetrijom (DSC) i termogravimetrijskom analizom (TGA). Površinska svojstva kopolimera su ispitana određivanjem kontaktnih uglova sa vodom (WCA). Kopolimeri su pokazali dvofaznu mikrostrukturu i bili su stabilni do 200°C u atmosteri azota.
PB  - Serbian Chemical Society
T2  - Journal of the Serbian Chemical Society
T1  - The effect of polar solvents on the synthesis of poly(urethane-urea-siloxane)s
T1  - Uticaj polarnih rastvarača na sintezu poli(uretan-urea-siloksana)
VL  - 77
IS  - 10
SP  - 1457
EP  - 1481
DO  - 10.2298/JSC111025056B
ER  - 

@article{
author = "Balaban, Milica and Antić, Vesna and Pergal, Marija and Francolini, Iolanda and Martinelli, Andrea and Đonlagić, Jasna",
year = "2012",
abstract = "Segmented poly(urethane-urea-siloxanes) (PUUS) based on 4,4'- methylene diphenyl diisocyanate-ethylene diamine (MDI-ED) hard segments and hydroxypropyl-terminated poly(dimethylsiloxane) (PDMS, Mn = 1000 g mol-1) soft segments were prepared under various experimental conditions. The copolymers with constant molar ratio of hard and soft segments (PDMS:MDI:ED = 1:2:1; 20 wt. % of the hard segments) were synthesized in two different solvent mixtures, by a two-step polyaddition procedure. The first one was tetrahydrofuran/N,N-dimethylacetamide (THF/DMAc) with different co-solvent ratios (1/1, 1/2 and 1/9, v/v), whereas the second one was tetrahydrofuran/N-methylpyrrolidone (THF/NMP, 1/9, v/v). The reaction conditions were optimized by varying the co-solvents ratio, the concentration of the catalyst, the initial monomer concentration, as well as the time of the first and the second step of the reaction. The effects of the experimental conditions on the size of the PUUS were investigated by gel permeation chromatography (GPC) and dilute solution viscometry. The copolymers with the highest molecular weights were obtained in the THF/NMP mixture (1/9, v/v). The structure and composition of the copolymers were determined by 1H-NMR and FTIR spectroscopy. The morphology of the synthesized copolymers was investigated by atomic force microscopy (AFM), while the thermal properties were studied by differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA). The surface properties were evaluated by measuring the water contact angle (WCA). The copolymers exhibited phase-separated microstructure and were stable up to 200°C in nitrogen., Segmentirani poli(uretan-urea-siloksani) (PUUS), sa tvrdim segmentima na bazi 4,4'-metilendifenildiizocijanata i etilendiamina (MDI-ED) i mekim segmentima na bazi hidroksipropil-terminiranog poli(dimetilsiloksana) (PDMS, Mn = 1000 g mol-1), sintetisani su pod različitim eksperimentalnim uslovima. Kopolimeri sa konstantnim molskim odnosom tvrdih i mekih segmenata (PDMS:MDI:ED = 1:2:1; 20 mas. % tvrdih segmenata), sintetisani su u dve različite smeše rastvarača kao reakcionog medijuma, metodom dvostepene poliadicije. Prva kombinacija rastvarača je bila smeša tetrahidrofurana (THF) i N,N-dimetilacetamida (DMAc), dok je u drugom slučaju korišćena smeša THF-a i N-metilpirolidona (NMP). Reakcioni uslovi su optimizovani u pogledu odnosa ko-rastvarača, koncentracije katalizatora, početne koncentracije monomera i vremena odigravanja prve i druge faze reakcije. Ispitan je uticaj primenjenih eksperimentalnih uslova na veličinu PUUS primenom gel-propusne hromatografije (GPC) i viskozimetrije razblaženih rastvora [η]. Kopolimeri najvećih molarnih masa su dobijeni u smeši THF/NMP (1/9, v/v). Struktura i sastav kopolimera su okarakterisani 1H-NMR i FTIR spektroskopijom. Morfologija sintetisanih kopolimera je ispitana mikroskopijom atomskih sila (AFM), dok su termička svojstva ispitana diferencijalnom skenirajućom kalorimetrijom (DSC) i termogravimetrijskom analizom (TGA). Površinska svojstva kopolimera su ispitana određivanjem kontaktnih uglova sa vodom (WCA). Kopolimeri su pokazali dvofaznu mikrostrukturu i bili su stabilni do 200°C u atmosteri azota.",
publisher = "Serbian Chemical Society",
journal = "Journal of the Serbian Chemical Society",
title = "The effect of polar solvents on the synthesis of poly(urethane-urea-siloxane)s, Uticaj polarnih rastvarača na sintezu poli(uretan-urea-siloksana)",
volume = "77",
number = "10",
pages = "1457-1481",
doi = "10.2298/JSC111025056B"
}

Balaban, M., Antić, V., Pergal, M., Francolini, I., Martinelli, A.,& Đonlagić, J.. (2012). The effect of polar solvents on the synthesis of poly(urethane-urea-siloxane)s. in Journal of the Serbian Chemical Society
Serbian Chemical Society., 77(10), 1457-1481.
https://doi.org/10.2298/JSC111025056B

Balaban M, Antić V, Pergal M, Francolini I, Martinelli A, Đonlagić J. The effect of polar solvents on the synthesis of poly(urethane-urea-siloxane)s. in Journal of the Serbian Chemical Society. 2012;77(10):1457-1481.
doi:10.2298/JSC111025056B .

Balaban, Milica, Antić, Vesna, Pergal, Marija, Francolini, Iolanda, Martinelli, Andrea, Đonlagić, Jasna, "The effect of polar solvents on the synthesis of poly(urethane-urea-siloxane)s" in Journal of the Serbian Chemical Society, 77, no. 10 (2012):1457-1481,
https://doi.org/10.2298/JSC111025056B . .