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

被引：0
|
作者：
Kim, SJ [1 ]
Park, SJ [1 ]
Yoon, SG [1 ]
Lee, KJ [1 ]
Lee, YM [1 ]
Park, SB [1 ]
Kim, SI [1 ]
机构：
[1] Hanyang Univ, Dept Biomed Engn, Seoul 133791, South Korea
来源：
SMART MATERIALS II | 2002年 / 4934卷
关键词：
poly(vinyl alcohol); poly(N-isopropylacrylamide); water behavior;
D O I：
10.1117/12.469181
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
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 IPN hydrogels were analyzed for sorption behavior of water at 35 degreesC and at a relative humidity (RE) of 95% using a dynamic vapor sorption system, and water diffusion coefficients were calculated. Differential scanning calorimetry (DSC) was used for the quantitative determination of the amounts of freezing and non-freezing water. Free water contents in the IPN hydrogel of IPN1, IPN2 and IPN3 were 45.8, 37.9 and 33.1% in pure water, respectively.
引用
收藏
页码：370 / 377
页数：8
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