This paper presents the procedure for the synthesis of hydrogels based on N-isopropylacrylamide (NIPAM) and 2-hydroxypropyl methacrylate (HPMet) using dioxan as a solvent. Hydrogels were obtained by radical polymerization using different contents of ethylene glycol dimethacrylate as a cross-linker and benzoyl peroxide as the initiator. In the FTIR spectra of poly(N-isopropylacrylamide-co- 2-hydroxypropylmethacrylate) (p(NIPAM-HPMet)) xerogel, new absorption bands are present and there are no specific bands characteristic of a monomer NIPAM, which indicates that copolymerization was performed. SEM micrographs show porous surfaces of xerogels. The aim of this work was the investigation of the swelling behavior for all synthesized hydrogels with different cross-linker content at the temperature from 20 to 40°C. The sample of p(NIPAM-HPMet) with the lowest cross-linker content reached the highest swelling degree at 20°C (α=20.23). The degree of swelling decreased with increa-sing the cross...-linker content and temperature, so the samples with highest cross-linker content at 40°C reached the swelling degree of 2.05.
U radu je izvršena sinteza hidrogelova na bazi N-izopropilakrilamida (NIPAM) i 2-hidroksipropil metakrilata (HPMet), primenom dioksana kao rastvarača. Hidrogelovi su dobijeni radikalskom polimerizacijom uz upotrebu različitog sadržaja etilenglikoldimetakrilata (EDGM) kao umreživača i benzoil peroksida kao inicijatora. U FTIR spektrima kserogelova poli(N-izopropilakrillamid-ko-2-hidroksipropil metakrilata) (p(NIPAM-HPMet)) prisutne su nove apsorpcione trake, a nisu prisutne pojedine trake karakteristične za monomere, što ukazuje na izvršenu kopolimerizaciju. SEM mikrografije pokazuju poroznu površinu kserogelova. Svojstva pri bubrenju svih sintetisanih hidrogelova praćena su na temperaturama od 20 do 40°C. Najveću sposobnost bubrenja pokazao je uzorak p(NIPAM-HPMet)-a sa najmanjim sadržajem umreživača na 20°C (α = 20,23). Sposobnost bubrenja opada pri povećanju sadržaja umreživača i temperature, tako da uzorci sa najvećim sadržajem umreživača (3 mol% EGDM-a) na 40°C dostižu stepen bu...brenja od samo 2,05.
TY - JOUR
AU - Ilić-Stojanović, Snežana
AU - Nikolić, Ljubiša B.
AU - Nikolić, Vesna D.
AU - Petrović, Slobodan
AU - Zdravković, Aleksandar S.
AU - Stamenković, Jakov
PY - 2014
UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2606
AB - This paper presents the procedure for the synthesis of hydrogels based on N-isopropylacrylamide (NIPAM) and 2-hydroxypropyl methacrylate (HPMet) using dioxan as a solvent. Hydrogels were obtained by radical polymerization using different contents of ethylene glycol dimethacrylate as a cross-linker and benzoyl peroxide as the initiator. In the FTIR spectra of poly(N-isopropylacrylamide-co- 2-hydroxypropylmethacrylate) (p(NIPAM-HPMet)) xerogel, new absorption bands are present and there are no specific bands characteristic of a monomer NIPAM, which indicates that copolymerization was performed. SEM micrographs show porous surfaces of xerogels. The aim of this work was the investigation of the swelling behavior for all synthesized hydrogels with different cross-linker content at the temperature from 20 to 40°C. The sample of p(NIPAM-HPMet) with the lowest cross-linker content reached the highest swelling degree at 20°C (α=20.23). The degree of swelling decreased with increa-sing the cross-linker content and temperature, so the samples with highest cross-linker content at 40°C reached the swelling degree of 2.05.
AB - U radu je izvršena sinteza hidrogelova na bazi N-izopropilakrilamida (NIPAM) i 2-hidroksipropil metakrilata (HPMet), primenom dioksana kao rastvarača. Hidrogelovi su dobijeni radikalskom polimerizacijom uz upotrebu različitog sadržaja etilenglikoldimetakrilata (EDGM) kao umreživača i benzoil peroksida kao inicijatora. U FTIR spektrima kserogelova poli(N-izopropilakrillamid-ko-2-hidroksipropil metakrilata) (p(NIPAM-HPMet)) prisutne su nove apsorpcione trake, a nisu prisutne pojedine trake karakteristične za monomere, što ukazuje na izvršenu kopolimerizaciju. SEM mikrografije pokazuju poroznu površinu kserogelova. Svojstva pri bubrenju svih sintetisanih hidrogelova praćena su na temperaturama od 20 do 40°C. Najveću sposobnost bubrenja pokazao je uzorak p(NIPAM-HPMet)-a sa najmanjim sadržajem umreživača na 20°C (α = 20,23). Sposobnost bubrenja opada pri povećanju sadržaja umreživača i temperature, tako da uzorci sa najvećim sadržajem umreživača (3 mol% EGDM-a) na 40°C dostižu stepen bubrenja od samo 2,05.
PB - Univerzitet u Nišu - Tehnološki fakultet, Leskovac
T2 - Savremene tehnologije
T1 - The effect of the cross-linker content on the swelling properties of intelligent gels
T1 - Efekat sadržaja umreživača na svojstva bubrenja inteligentnih gelova
EP - 15
IS - 2
SP - 10
VL - 3
DO - 10.5937/savteh1402010I
ER -
@article{
author = "Ilić-Stojanović, Snežana and Nikolić, Ljubiša B. and Nikolić, Vesna D. and Petrović, Slobodan and Zdravković, Aleksandar S. and Stamenković, Jakov",
year = "2014",
abstract = "This paper presents the procedure for the synthesis of hydrogels based on N-isopropylacrylamide (NIPAM) and 2-hydroxypropyl methacrylate (HPMet) using dioxan as a solvent. Hydrogels were obtained by radical polymerization using different contents of ethylene glycol dimethacrylate as a cross-linker and benzoyl peroxide as the initiator. In the FTIR spectra of poly(N-isopropylacrylamide-co- 2-hydroxypropylmethacrylate) (p(NIPAM-HPMet)) xerogel, new absorption bands are present and there are no specific bands characteristic of a monomer NIPAM, which indicates that copolymerization was performed. SEM micrographs show porous surfaces of xerogels. The aim of this work was the investigation of the swelling behavior for all synthesized hydrogels with different cross-linker content at the temperature from 20 to 40°C. The sample of p(NIPAM-HPMet) with the lowest cross-linker content reached the highest swelling degree at 20°C (α=20.23). The degree of swelling decreased with increa-sing the cross-linker content and temperature, so the samples with highest cross-linker content at 40°C reached the swelling degree of 2.05., U radu je izvršena sinteza hidrogelova na bazi N-izopropilakrilamida (NIPAM) i 2-hidroksipropil metakrilata (HPMet), primenom dioksana kao rastvarača. Hidrogelovi su dobijeni radikalskom polimerizacijom uz upotrebu različitog sadržaja etilenglikoldimetakrilata (EDGM) kao umreživača i benzoil peroksida kao inicijatora. U FTIR spektrima kserogelova poli(N-izopropilakrillamid-ko-2-hidroksipropil metakrilata) (p(NIPAM-HPMet)) prisutne su nove apsorpcione trake, a nisu prisutne pojedine trake karakteristične za monomere, što ukazuje na izvršenu kopolimerizaciju. SEM mikrografije pokazuju poroznu površinu kserogelova. Svojstva pri bubrenju svih sintetisanih hidrogelova praćena su na temperaturama od 20 do 40°C. Najveću sposobnost bubrenja pokazao je uzorak p(NIPAM-HPMet)-a sa najmanjim sadržajem umreživača na 20°C (α = 20,23). Sposobnost bubrenja opada pri povećanju sadržaja umreživača i temperature, tako da uzorci sa najvećim sadržajem umreživača (3 mol% EGDM-a) na 40°C dostižu stepen bubrenja od samo 2,05.",
publisher = "Univerzitet u Nišu - Tehnološki fakultet, Leskovac",
journal = "Savremene tehnologije",
title = "The effect of the cross-linker content on the swelling properties of intelligent gels, Efekat sadržaja umreživača na svojstva bubrenja inteligentnih gelova",
pages = "15-10",
number = "2",
volume = "3",
doi = "10.5937/savteh1402010I"
}
Ilić-Stojanović, S., Nikolić, L. B., Nikolić, V. D., Petrović, S., Zdravković, A. S.,& Stamenković, J.. (2014). The effect of the cross-linker content on the swelling properties of intelligent gels. in Savremene tehnologije
Univerzitet u Nišu - Tehnološki fakultet, Leskovac., 3(2), 10-15.
https://doi.org/10.5937/savteh1402010I
Ilić-Stojanović S, Nikolić LB, Nikolić VD, Petrović S, Zdravković AS, Stamenković J. The effect of the cross-linker content on the swelling properties of intelligent gels. in Savremene tehnologije. 2014;3(2):10-15.
doi:10.5937/savteh1402010I .
Ilić-Stojanović, Snežana, Nikolić, Ljubiša B., Nikolić, Vesna D., Petrović, Slobodan, Zdravković, Aleksandar S., Stamenković, Jakov, "The effect of the cross-linker content on the swelling properties of intelligent gels" in Savremene tehnologije, 3, no. 2 (2014):10-15,
https://doi.org/10.5937/savteh1402010I . .
