The structure characterization of thermosensitive poly(N-isopropylacrylamide-co-2-hydroxypropyl methacrylate) hydrogel

被引：25

作者：

Ilic-Stojanovic, Snezana ^{[1
]}

Nikolic, Ljubisa ^{[1
]}

Nikolic, Vesna ^{[1
]}

Ristic, Ivan ^{[2
]}

Budinski-Simendic, Jaroslava ^{[2
]}

Kapor, Agnes ^{[3
]}

Nikolic, Goran M. ^{[4
]}

机构：

[1] Univ Nis, Fac Technol, Leskovac 16000, Serbia

[2] Univ Novi Sad, Fac Tehnol, Novi Sad 21000, Serbia

[3] Univ Novi Sad, Dept Phys, Fac Sci, Novi Sad 21000, Serbia

[4] Univ Nis, Fac Med, Nish 18000, Serbia

来源：

POLYMER INTERNATIONAL | 2014年 / 63卷 / 06期

关键词：

X-ray; N-isopropylacrylamide; hydrogels; radical polymerization; swelling kinetics; glass transition; N-ISOPROPYLACRYLAMIDE; CONTROLLED-RELEASE; GLASS-TRANSITION; TEMPERATURE; POLYMERS; POLYMERIZATION; NANOPARTICLES; COPOLYMERS; BEHAVIOR; CELLS;

D O I：

10.1002/pi.4589

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The goal of this work was to investigate a possible way of crosslinking polymer chains and the potential formation of intramolecular hydrogen bonds in thermosensitive poly(N-isopropylacrylamide-co-2-hydroxypropyl methacrylate) (p(NIPAM-HPMet)) hydrogels obtained by radical polymerization. The chemical structure of the synthesized hydrogels was investigated by Fourier transform infrared (FTIR) spectroscopy and XRD. The FTIR spectrum confirmed the presence of hydrogen bonds formed between the chains in the copolymer. XRD analysis confirmed the amorphous - crystalline structure of the copolymer. A three-glass transition and two melting temperatures were detected by DSC. It was found that the addition of HPMet increased the glass transition and melting temperatures of the p(NIPAM-HPMet) copolymer. The swelling transport mechanism of p(NIPAM-HPMet) changed from non-Fickian at 20 degrees C to case III or zero-order time-independent kinetics characterized by a linear mass uptake with time with increasing temperature at 40 degrees C. (c) 2013 Society of Chemical Industry

引用

页码：973 / 981

页数：9

共 43 条

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