Synthesis and characteristics of interpenetrating polymer network hydrogels composed of poly(vinyl alcohol) and poly(N-isopropylacrylamide)

被引：90

作者：

Kim, SJ ^{[1
]}

Park, SJ ^{[1
]}

Kim, SI ^{[1
]}

机构：

[1] Hanyang Univ, Dept Biomed Engn, Seoul 133605, South Korea

来源：

REACTIVE & FUNCTIONAL POLYMERS | 2003年 / 55卷 / 01期

关键词：

interpenetrating polymer network; poly(vinyl alcohol); poly(N-isopropylacrylamide); hydrogel;

D O I：

10.1016/S1381-5148(02)00215-8

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Interpenetrating polymer network (IPN) hydrogels based on poly(vinyl alcohol) (PVA) and poly(N-isopropylacrylamide) (PNIPAAm) were prepared by the sequential-IPN method. The characterizations of IPN hydrogels were investigated by swelling experiment, Fourier transform infrared (FT-IR) spectroscopy and differential scanning calorimetry (DSC). IPN hydrogels exhibited a relatively high swelling ratio in the range 180-300% at 35 degreesC. The swelling ratio of hydrogels depended on pH and temperature. DSC was used for the quantitative determination of the amounts of freezing and non-freezing water. Free water contents in the hydrogels IPN1, IPN2 and IPN3 were 45.8, 37.9 and 33.1% in pure water, respectively. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：61 / 67

页数：7

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