Swelling kinetics of interpenetrating polymer hydrogels composed of poly(vinyl alcohol)/chitosan

被引：30
|
作者：
Kim, SJ [1 ]
Lee, KJ [1 ]
Kim, IY [1 ]
Kim, SI [1 ]
机构：
[1] Hanyang Univ, Dept Biomed Engn, Seoul 133791, South Korea
来源：
JOURNAL OF MACROMOLECULAR SCIENCE-PURE AND APPLIED CHEMISTRY | 2003年 / A40卷 / 05期
关键词：
hydrogel; IPN; poly(vinyl alcohol); chitosan; swelling kinetics;
D O I：
10.1081/MA-120019888
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Interpenetrating polymer network (IPN) hydrogels based on poly(vinyl alcohol)/ chitosan were prepared by UV irradiation. The swelling behavior of the IPN hydrogels was studied by immersion of the films in deionized water at various temperatures and in buffer solutions at various pHs. IPN3 exhibited a relatively high swelling ratio. The swelling ratio increased with an increase in the content of chitosan and were higher in acidic rather than in alkaline pHs. The overall. swelling process was anomalous diffusion due to polymer relaxation. The diffusion coefficient values increased with an increase in temperature and the content of chitosan.
引用
收藏
页码：501 / 510
页数：10
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