SWELLING AND MECHANICAL-PROPERTIES OF POLYVINYLALCOHOL HYDROGELS

被引:22
作者
TAKIGAWA, T
KASIHARA, H
MASUDA, T
机构
[1] Research Center for Biomedical Engineering, Kyoto University Shogoin, Kyoto, 606, Sakyo-ku
关键词
D O I
10.1007/BF00300157
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 swelling and mechanical properties of Poly(vinylalcohol) hydrogels were examined. It was found that the degree of swelling of PVA hydrogels depends on annealing temperature, but is almost independent of the initial polymer concentration. Mechanical properties of the hydrogels were also influenced by the degree of swelling. A shoulder was observed in double-logarithmic plots of stress vs. strain for the hydrogels, and became clearer as annealing temperature increased. This shoulder was closely related to the breakdown of the microcrystalline domains acting as crosslinks. Also, the shape of stress-strain curves plotted double-logarithmically for the hydrogels changed with the extension rate. © 1990 Springer-Verlag.
引用
收藏
页码:613 / 618
页数:6
相关论文
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