TY  - JOUR
AU  - Ristić, Ivan
AU  - Jotanović, Milovan
AU  - Erceg, Tamara
AU  - Nikolić, Ljubiša
AU  - Cakić, Suzana
AU  - Mićić, Vladan
AU  - Pavlović, Stefan
AU  - Begić, Sabina
PY  - 2019
UR  - http://savremenimaterijali.info/index.php?idsek=223
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3806
AB  - The consequence of drastic reduction in fossil fuel reserves has forced the
scientific community to find and develop new ways to exploit renewable resources and
optimize the process of polymer materials production. The aim is to obtain applicable
polymer whose complete life cycle is set in ecological framework. Poly(lactide) (PLA)
meets these requirements as biodegradable polyester whose monomer is derived from the
plant feedstock containing carbohydrates. PLA could be prepared using the different
synthesis routes, but from the point of energy saving, as well as environmental protection,
the microwave synthesis of PLA is the best solution. In this work, poly(L-lactide) were
synthesized in microwave reactor. Reaction time was varied, while the other parameters of
the synthesis were constant. The structures of obtained polymers were confirmed by Fourier
– transform infrared spectroscopy (FT-IR). For determination of molar masses of poly(Llactide) samples, the gel permeation chromatography (GPC) was applied. Thermal
properties were investigated by differential scanning calorimetry (DSC).
PB  - Бања Лука: Академија наука и умјетности РС
T2  - Contemporary Materials
T1  - The influence of reaction time on the properties of microwave synthesized poly(lactide)
VL  - 10
IS  - 1
SP  - 56
EP  - 63
DO  - 10.7251/COMEN1901056R
ER  - 

@article{
author = "Ristić, Ivan and Jotanović, Milovan and Erceg, Tamara and Nikolić, Ljubiša and Cakić, Suzana and Mićić, Vladan and Pavlović, Stefan and Begić, Sabina",
year = "2019",
abstract = "The consequence of drastic reduction in fossil fuel reserves has forced the
scientific community to find and develop new ways to exploit renewable resources and
optimize the process of polymer materials production. The aim is to obtain applicable
polymer whose complete life cycle is set in ecological framework. Poly(lactide) (PLA)
meets these requirements as biodegradable polyester whose monomer is derived from the
plant feedstock containing carbohydrates. PLA could be prepared using the different
synthesis routes, but from the point of energy saving, as well as environmental protection,
the microwave synthesis of PLA is the best solution. In this work, poly(L-lactide) were
synthesized in microwave reactor. Reaction time was varied, while the other parameters of
the synthesis were constant. The structures of obtained polymers were confirmed by Fourier
– transform infrared spectroscopy (FT-IR). For determination of molar masses of poly(Llactide) samples, the gel permeation chromatography (GPC) was applied. Thermal
properties were investigated by differential scanning calorimetry (DSC).",
publisher = "Бања Лука: Академија наука и умјетности РС",
journal = "Contemporary Materials",
title = "The influence of reaction time on the properties of microwave synthesized poly(lactide)",
volume = "10",
number = "1",
pages = "56-63",
doi = "10.7251/COMEN1901056R"
}

Ristić, I., Jotanović, M., Erceg, T., Nikolić, L., Cakić, S., Mićić, V., Pavlović, S.,& Begić, S.. (2019). The influence of reaction time on the properties of microwave synthesized poly(lactide). in Contemporary Materials
Бања Лука: Академија наука и умјетности РС., 10(1), 56-63.
https://doi.org/10.7251/COMEN1901056R

Ristić I, Jotanović M, Erceg T, Nikolić L, Cakić S, Mićić V, Pavlović S, Begić S. The influence of reaction time on the properties of microwave synthesized poly(lactide). in Contemporary Materials. 2019;10(1):56-63.
doi:10.7251/COMEN1901056R .

Ristić, Ivan, Jotanović, Milovan, Erceg, Tamara, Nikolić, Ljubiša, Cakić, Suzana, Mićić, Vladan, Pavlović, Stefan, Begić, Sabina, "The influence of reaction time on the properties of microwave synthesized poly(lactide)" in Contemporary Materials, 10, no. 1 (2019):56-63,
https://doi.org/10.7251/COMEN1901056R . .

TY  - CONF
AU  - Ristić, Ivan
AU  - Jotanović, Milovan
AU  - Erceg, Tamara
AU  - Nikolić, Ljubiša
AU  - Cakić, Suzana
AU  - Mićić, Vladan
AU  - Pavlović, Stefan
PY  - 2017
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3797
AB  - The world is faced with the consequences of drastic reduction in fossil fuel reserves, because of their widespread use, not only as an energy source, but also as a feedstock for monomers obtaining. In order to solve this problem, the scientific community has focused on finding the new ways to exploit renewable resources and optimize the process of polymer materials production. The aim is to obtain applicable polymer whose complete life cycle is put in ecological framework. Poly(lactide) (PLA) meets these requirements as biodegradable polyester whose monomer is derived from plant feedstock containing carbohydrates. Different methods can be applied for PLA synthesis, but from the point of energy saving, as well as environmental protection, the microwave synthesis of PLA is the best solution. The use of microwaves enables homogenous heating of reaction mixture, lower consumption of organic solvent and drastic reduction in polymerization time, obtaining, in the same time, high molecular weight polymers.
PB  - University of Maribor Press
C3  - Materials: (conference proceedings) - 10th International Conference on Sustainable Energy and Environmental Protection
T1  - Energy Efficient Poly(Lactide) Obtaining by Microwave Synthesis
SP  - 43
EP  - 49
DO  - 10.18690/978-961-286-056-1.6
ER  - 

@conference{
author = "Ristić, Ivan and Jotanović, Milovan and Erceg, Tamara and Nikolić, Ljubiša and Cakić, Suzana and Mićić, Vladan and Pavlović, Stefan",
year = "2017",
abstract = "The world is faced with the consequences of drastic reduction in fossil fuel reserves, because of their widespread use, not only as an energy source, but also as a feedstock for monomers obtaining. In order to solve this problem, the scientific community has focused on finding the new ways to exploit renewable resources and optimize the process of polymer materials production. The aim is to obtain applicable polymer whose complete life cycle is put in ecological framework. Poly(lactide) (PLA) meets these requirements as biodegradable polyester whose monomer is derived from plant feedstock containing carbohydrates. Different methods can be applied for PLA synthesis, but from the point of energy saving, as well as environmental protection, the microwave synthesis of PLA is the best solution. The use of microwaves enables homogenous heating of reaction mixture, lower consumption of organic solvent and drastic reduction in polymerization time, obtaining, in the same time, high molecular weight polymers.",
publisher = "University of Maribor Press",
journal = "Materials: (conference proceedings) - 10th International Conference on Sustainable Energy and Environmental Protection",
title = "Energy Efficient Poly(Lactide) Obtaining by Microwave Synthesis",
pages = "43-49",
doi = "10.18690/978-961-286-056-1.6"
}

Ristić, I., Jotanović, M., Erceg, T., Nikolić, L., Cakić, S., Mićić, V.,& Pavlović, S.. (2017). Energy Efficient Poly(Lactide) Obtaining by Microwave Synthesis. in Materials: (conference proceedings) - 10th International Conference on Sustainable Energy and Environmental Protection
University of Maribor Press., 43-49.
https://doi.org/10.18690/978-961-286-056-1.6

Ristić I, Jotanović M, Erceg T, Nikolić L, Cakić S, Mićić V, Pavlović S. Energy Efficient Poly(Lactide) Obtaining by Microwave Synthesis. in Materials: (conference proceedings) - 10th International Conference on Sustainable Energy and Environmental Protection. 2017;:43-49.
doi:10.18690/978-961-286-056-1.6 .

Ristić, Ivan, Jotanović, Milovan, Erceg, Tamara, Nikolić, Ljubiša, Cakić, Suzana, Mićić, Vladan, Pavlović, Stefan, "Energy Efficient Poly(Lactide) Obtaining by Microwave Synthesis" in Materials: (conference proceedings) - 10th International Conference on Sustainable Energy and Environmental Protection (2017):43-49,
https://doi.org/10.18690/978-961-286-056-1.6 . .

TY  - CONF
AU  - Ristić, Ivan
AU  - Mićić, Vladan
AU  - Cakić, Suzana
AU  - Radičević, Radmila
AU  - Aleksić, Vojislav
AU  - Miletić, Aleksandra
AU  - Pavlović, Stefan
PY  - 2016
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3869
AB  - The parameters of foam preparation, such as addition of fillers, have a significant effect on the properties of polyurethane foams. The goal of this work was to study the effect of the cement addition on the thermo-mechanical properties of rigid polyurethane foams. Isocyanate component was based on polymeric diphenylmethane diisocyanate, and polyol component was polyether type, with addition of castor oil as polyol. It was estimated that the addition of cement increased the values of foam compressive strength and permanent deformation. Compressive strength increased even more than 90% with 20 wt% of cement. Further increase of the cement loading deteriorates the mechanical properties of foamed material because it distorts cellular structures of obtained materials. Addition of cement increased the value of the glass transition temperature of polyurethane foam. The highest increase in the value of glass transition temperature, for 7.5ºC, was achieved by the addition of 20 wt% of cement.
PB  - Society of Chemists and Technologists of Macedonia
C3  - Book of abstracts - XXIV Congress of Chemists and Technologists of Macedonia, Ohrid
T1  - Thermo-mechanical properties of rigid polyurethane foams with cement addition
SP  - 287
UR  - https://hdl.handle.net/21.15107/rcub_cer_3869
ER  - 

@conference{
author = "Ristić, Ivan and Mićić, Vladan and Cakić, Suzana and Radičević, Radmila and Aleksić, Vojislav and Miletić, Aleksandra and Pavlović, Stefan",
year = "2016",
abstract = "The parameters of foam preparation, such as addition of fillers, have a significant effect on the properties of polyurethane foams. The goal of this work was to study the effect of the cement addition on the thermo-mechanical properties of rigid polyurethane foams. Isocyanate component was based on polymeric diphenylmethane diisocyanate, and polyol component was polyether type, with addition of castor oil as polyol. It was estimated that the addition of cement increased the values of foam compressive strength and permanent deformation. Compressive strength increased even more than 90% with 20 wt% of cement. Further increase of the cement loading deteriorates the mechanical properties of foamed material because it distorts cellular structures of obtained materials. Addition of cement increased the value of the glass transition temperature of polyurethane foam. The highest increase in the value of glass transition temperature, for 7.5ºC, was achieved by the addition of 20 wt% of cement.",
publisher = "Society of Chemists and Technologists of Macedonia",
journal = "Book of abstracts - XXIV Congress of Chemists and Technologists of Macedonia, Ohrid",
title = "Thermo-mechanical properties of rigid polyurethane foams with cement addition",
pages = "287",
url = "https://hdl.handle.net/21.15107/rcub_cer_3869"
}

Ristić, I., Mićić, V., Cakić, S., Radičević, R., Aleksić, V., Miletić, A.,& Pavlović, S.. (2016). Thermo-mechanical properties of rigid polyurethane foams with cement addition. in Book of abstracts - XXIV Congress of Chemists and Technologists of Macedonia, Ohrid
Society of Chemists and Technologists of Macedonia., 287.
https://hdl.handle.net/21.15107/rcub_cer_3869

Ristić I, Mićić V, Cakić S, Radičević R, Aleksić V, Miletić A, Pavlović S. Thermo-mechanical properties of rigid polyurethane foams with cement addition. in Book of abstracts - XXIV Congress of Chemists and Technologists of Macedonia, Ohrid. 2016;:287.
https://hdl.handle.net/21.15107/rcub_cer_3869 .

Ristić, Ivan, Mićić, Vladan, Cakić, Suzana, Radičević, Radmila, Aleksić, Vojislav, Miletić, Aleksandra, Pavlović, Stefan, "Thermo-mechanical properties of rigid polyurethane foams with cement addition" in Book of abstracts - XXIV Congress of Chemists and Technologists of Macedonia, Ohrid (2016):287,
https://hdl.handle.net/21.15107/rcub_cer_3869 .