CRYSTALLIZATION OF WATER IN SWOLLEN POLY(VINYL ALCOHOL) POLY(VINYL PYRROLIDONE) BLENDS

被引：17
|
作者：
RAULT, J
PING, ZH
NGUYEN, QT
机构：
[1] FUDAN UNIV,DEPT POLYMER MAT,SHANGHAI 200433,PEOPLES R CHINA
[2] ECOLE NATL SUPER IND CHIM,INST NATL POLYTECH LORRAINE,LCPM,CNRS,URA 494,F-54001 NANCY,FRANCE
来源：
POLYMER BULLETIN | 1995年 / 35卷 / 05期
关键词：
D O I：
10.1007/BF00324121
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Water molecules sorbed in pure poly(vinyl alcohol) and poly(vinyl pyrrolidone), as well as in their blends is found to be only partially crystallizable. The fraction of non-crystalizable water is shown to vary with the blend composition. Such variation is explained by the newly proposed Tg-regulation effect when the swollen blend materials is cooled down. A part of the sorbed water cannot crystallize due to the fact that during cooling the amorphous polmer-water phase is frozen before the water crystallization temperature is reached.
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页码：649 / 652
页数：4
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