STRUCTURE AND MECHANICAL-PROPERTIES OF POLY(VINYL ALCOHOL) GELS SWOLLEN BY VARIOUS SOLVENTS

被引：45

作者：

TAKIGAWA, T ^{[1
]}

KASHIHARA, H ^{[1
]}

URAYAMA, K ^{[1
]}

MASUDA, T ^{[1
]}

机构：

[1] KYOTO UNIV,BIOMED ENGN RES CTR,SAKYO KU,KYOTO 606,JAPAN

来源：

POLYMER | 1992年 / 33卷 / 11期

关键词：

POLY(VINYL ALCOHOL); GEL; STRUCTURE; SWELLING; MECHANICAL PROPERTIES;

D O I：

10.1016/0032-3861(92)90524-Z

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(vinyl alcohol) (PVA) hydrogel, and PVA gels obtained by swelling precursors in various solvents were investigated. On the basis of the experimental results, the structure of the gels in various solvents was estimated. PVA gels have a uniform structure with flexible PVA chains in a mixed solvent of dimethyl sulphoxide (DMSO) and water. On the other hand, those swollen in methanol, ethanol and formamide have a two-phase structure, which is composed of PVA-rich and solvent-rich phases. The PVA chains in the PVA-rich phase are crosslinked by hydrogen bonding.

引用

页码：2334 / 2339

页数：6

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