STICKY POLY(VINYL ALCOHOL) HYDROGELS

被引：14

作者：

CHA, WI

HYON, SH

GRAIVER, D

IKADA, Y

机构：

[1] KYOTO UNIV,BIOMED ENGN RES CTR,53 KAWAHARA CHO,SAKYO KU,KYOTO 606,JAPAN

[2] DOW CORNING CORP,MIDLAND,MI 48640

来源：

JOURNAL OF APPLIED POLYMER SCIENCE | 1993年 / 47卷 / 02期

关键词：

D O I：

10.1002/app.1993.070470213

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Low-temperature gelation of poly(vinyl alcohol) (PVA) solution was performed in the presence of CaCl2. The resulting PVA hydrogels showed high stickiness and excellent water-holding ability. These properties became more remarkable with increasing CaCl2 concentration in solvent. Furthermore, both the peel strength on stainless steel and the degree of swelling of the PVA hydrogel drastically increased as CaCl2 concentration was increased from 20 to 30 wt %. It is concluded that the sticky and water-holding properties of PVA hydrogels are intimately related to the state of hydration of Ca ions in aqueous environment.

引用

页码：339 / 343

页数：5

共 8 条

[1] STUDIES OF THE CROSS-LINKING PROCESS IN GELATIN GELS .3. DEPENDENCE OF MELTING POINT ON CONCENTRATION AND MOLECULAR WEIGHT [J].