A reappraisal of the 'thermoreversible' gelation of aqueous poly(vinyl alcohol) solutions through freezing-thawing cycles

被引：35

作者：

Hernandez, R

Lopez, D

Mijangos, C

Guenet, JM

机构：

[1] Inst Charles Sadron, CNRS UPR 22, F-67083 Strasbourg, France

[2] CSIC, Inst Ciencia & Tecnol Polimeros, E-28006 Madrid, Spain

来源：

POLYMER | 2002年 / 43卷 / 21期

关键词：

gelation; poly(vinyl alcohol); freezing-thawing cycles;

D O I：

10.1016/S0032-3861(02)00470-6

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 [高分子化学与物理]; 080501 [材料物理与化学]; 081704 [应用化学];

摘要：

We report on a study of the gelation phenomenon of poly(vinyl alcohol) in water through freezing-thawing cycles. From self-exclusion chromatography experiments carried out on redissolved gels and microcalorimetry measurements performed on gels we come to the conclusion that gelation is rather of chemical than of physical nature. (C) 2002 Elsevier Science Ltd. All rights reserved.

引用

页码：5661 / 5663

页数：3

共 15 条

[1]

POLYSTYRENE DEGRADATION INDUCED BY STRESSES RESULTING FROM FREEZING OF ITS SOLUTIONS [J].