TY  - CONF
AU  - Nikolić, Ljubiša
AU  - Najman, Stevo
AU  - Petrović, Đorđe
AU  - Urošević, Maja
AU  - Nikolić, Vesna
AU  - Cakić, Suzana
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11667
AB  - Poly(N-isopropylmethacrylamide) has significant potential for designing thermosensitive new materials. It is similar with well-known poly(N-isopropylacrylamide) hydrogels. The influence of the α-methylation on the each monomer unit in the main chain exhibits weaker intermolecular interactions between the amide group. The method of thermally-initiated free radical polymerization was applied to synthesize a series of poly(N-isopropylmethacrylamide) hydrogels with different cross-linker amount. The micrographs, obtained by the scanning electron microscopy method, indicated a semi-homogeneous crosslinked network of these hydrogels which can be classified as macroporous. The swelling behavior at room temperature of these negatively thermosensitive hydrogel exhibit a little higher swelling degree in acidic media (at pH 2.0 swelling degree was about 21) in relation to the weakly basic media (at pH 7.4 swelling degree was about 18). The poly(N-isopropylmethacrylamide) hydrogel topology showed much free space within the crosslinked polymer chains in the swollen state and they could be use as absorbers of water, diluents, dissolvent, solutions, or as carriers for active substances.
PB  - University in Banjaluka : Faculty of Technology
C3  - 14th Conference of chemists, technologists and environmentalists of Republic of Srpska : the book of abstracts; Oct 21-22, Banja Luka, Republic of Srpska
T1  - The influence of poly(N-isopropylmethacrylamide) hydrogels crosslinking on their swelling capacity
SP  - 71
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11667
ER  - 

@conference{
author = "Nikolić, Ljubiša and Najman, Stevo and Petrović, Đorđe and Urošević, Maja and Nikolić, Vesna and Cakić, Suzana",
year = "2022",
abstract = "Poly(N-isopropylmethacrylamide) has significant potential for designing thermosensitive new materials. It is similar with well-known poly(N-isopropylacrylamide) hydrogels. The influence of the α-methylation on the each monomer unit in the main chain exhibits weaker intermolecular interactions between the amide group. The method of thermally-initiated free radical polymerization was applied to synthesize a series of poly(N-isopropylmethacrylamide) hydrogels with different cross-linker amount. The micrographs, obtained by the scanning electron microscopy method, indicated a semi-homogeneous crosslinked network of these hydrogels which can be classified as macroporous. The swelling behavior at room temperature of these negatively thermosensitive hydrogel exhibit a little higher swelling degree in acidic media (at pH 2.0 swelling degree was about 21) in relation to the weakly basic media (at pH 7.4 swelling degree was about 18). The poly(N-isopropylmethacrylamide) hydrogel topology showed much free space within the crosslinked polymer chains in the swollen state and they could be use as absorbers of water, diluents, dissolvent, solutions, or as carriers for active substances.",
publisher = "University in Banjaluka : Faculty of Technology",
journal = "14th Conference of chemists, technologists and environmentalists of Republic of Srpska : the book of abstracts; Oct 21-22, Banja Luka, Republic of Srpska",
title = "The influence of poly(N-isopropylmethacrylamide) hydrogels crosslinking on their swelling capacity",
pages = "71",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11667"
}

Nikolić, L., Najman, S., Petrović, Đ., Urošević, M., Nikolić, V.,& Cakić, S.. (2022). The influence of poly(N-isopropylmethacrylamide) hydrogels crosslinking on their swelling capacity. in 14th Conference of chemists, technologists and environmentalists of Republic of Srpska : the book of abstracts; Oct 21-22, Banja Luka, Republic of Srpska
University in Banjaluka : Faculty of Technology., 71.
https://hdl.handle.net/21.15107/rcub_vinar_11667

Nikolić L, Najman S, Petrović Đ, Urošević M, Nikolić V, Cakić S. The influence of poly(N-isopropylmethacrylamide) hydrogels crosslinking on their swelling capacity. in 14th Conference of chemists, technologists and environmentalists of Republic of Srpska : the book of abstracts; Oct 21-22, Banja Luka, Republic of Srpska. 2022;:71.
https://hdl.handle.net/21.15107/rcub_vinar_11667 .

Nikolić, Ljubiša, Najman, Stevo, Petrović, Đorđe, Urošević, Maja, Nikolić, Vesna, Cakić, Suzana, "The influence of poly(N-isopropylmethacrylamide) hydrogels crosslinking on their swelling capacity" in 14th Conference of chemists, technologists and environmentalists of Republic of Srpska : the book of abstracts; Oct 21-22, Banja Luka, Republic of Srpska (2022):71,
https://hdl.handle.net/21.15107/rcub_vinar_11667 .

TY  - CONF
AU  - Ilić-Stojanović, Snežana
AU  - Nikolić, Ljubiša
AU  - Petrović, Đorđe
AU  - Stojanović, Jelena
AU  - Urošević, Maja
AU  - Nikolić, Vesna
AU  - Cakić, Suzana
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11668
AB  - Poly(N-isopropylmethacrylamide) homopolymer, which belongs to thermosensitive hydrogels, was synthesized by free radical polymerization method with 1.5 mol% of ethylene glycol dimethacrylate as cross-linker. The structure of obtained homopolymer network was confirmed by Fourier transform infrared spectroscopy analysis. The hydrogel in the gelatinous state was subjected to gamma irradiation in order to additionally form a three-dimensional network in a solid state. Suddenly, the synthesized gelatinous homopolymer was transformed into the liquid state after irradiation instead of expected additional crosslinking. Breakdown of poly(Nisopropylmethacrylamide) homopolymer was confirmed by using different methods: gel permeation chromatography, the static headspace gas chromatography mass spectrometry and gas chromatography/flame ionization detection methods. New compounds, different from the homopolymer, monomer and crosslinker were detected after irradiation. As result, the gamma irradiation will be applicable for the poly(N-isopropylmethacrylamide) homopolymer decomposition and useful to further recyclability analysis.
PB  - University in Banjaluka : Faculty of Technology
C3  - 14th Conference of chemists, technologists and environmentalists of Republic of Srpska : the book of abstracts; Oct 21-22, Banja Luka, Republic of Srpska
T1  - Decomposition of poly(N-isopropylmethacrylamide) homopolymer network
SP  - 72
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11668
ER  - 

@conference{
author = "Ilić-Stojanović, Snežana and Nikolić, Ljubiša and Petrović, Đorđe and Stojanović, Jelena and Urošević, Maja and Nikolić, Vesna and Cakić, Suzana",
year = "2022",
abstract = "Poly(N-isopropylmethacrylamide) homopolymer, which belongs to thermosensitive hydrogels, was synthesized by free radical polymerization method with 1.5 mol% of ethylene glycol dimethacrylate as cross-linker. The structure of obtained homopolymer network was confirmed by Fourier transform infrared spectroscopy analysis. The hydrogel in the gelatinous state was subjected to gamma irradiation in order to additionally form a three-dimensional network in a solid state. Suddenly, the synthesized gelatinous homopolymer was transformed into the liquid state after irradiation instead of expected additional crosslinking. Breakdown of poly(Nisopropylmethacrylamide) homopolymer was confirmed by using different methods: gel permeation chromatography, the static headspace gas chromatography mass spectrometry and gas chromatography/flame ionization detection methods. New compounds, different from the homopolymer, monomer and crosslinker were detected after irradiation. As result, the gamma irradiation will be applicable for the poly(N-isopropylmethacrylamide) homopolymer decomposition and useful to further recyclability analysis.",
publisher = "University in Banjaluka : Faculty of Technology",
journal = "14th Conference of chemists, technologists and environmentalists of Republic of Srpska : the book of abstracts; Oct 21-22, Banja Luka, Republic of Srpska",
title = "Decomposition of poly(N-isopropylmethacrylamide) homopolymer network",
pages = "72",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11668"
}

Ilić-Stojanović, S., Nikolić, L., Petrović, Đ., Stojanović, J., Urošević, M., Nikolić, V.,& Cakić, S.. (2022). Decomposition of poly(N-isopropylmethacrylamide) homopolymer network. in 14th Conference of chemists, technologists and environmentalists of Republic of Srpska : the book of abstracts; Oct 21-22, Banja Luka, Republic of Srpska
University in Banjaluka : Faculty of Technology., 72.
https://hdl.handle.net/21.15107/rcub_vinar_11668

Ilić-Stojanović S, Nikolić L, Petrović Đ, Stojanović J, Urošević M, Nikolić V, Cakić S. Decomposition of poly(N-isopropylmethacrylamide) homopolymer network. in 14th Conference of chemists, technologists and environmentalists of Republic of Srpska : the book of abstracts; Oct 21-22, Banja Luka, Republic of Srpska. 2022;:72.
https://hdl.handle.net/21.15107/rcub_vinar_11668 .

Ilić-Stojanović, Snežana, Nikolić, Ljubiša, Petrović, Đorđe, Stojanović, Jelena, Urošević, Maja, Nikolić, Vesna, Cakić, Suzana, "Decomposition of poly(N-isopropylmethacrylamide) homopolymer network" in 14th Conference of chemists, technologists and environmentalists of Republic of Srpska : the book of abstracts; Oct 21-22, Banja Luka, Republic of Srpska (2022):72,
https://hdl.handle.net/21.15107/rcub_vinar_11668 .