Hydrolytic stability of unsaturated polyester prepolymers

被引：9

作者：

Belan, F

Bellenger, V

Mortaigne, B

Verdu, J

Yang, YS

机构：

[1] ENSAM,F-75013 PARIS,FRANCE

[2] DGA CREA,F-94114 ARCUEIL,FRANCE

来源：

COMPOSITES SCIENCE AND TECHNOLOGY | 1996年 / 56卷 / 07期

关键词：

unsaturated polyester; hydrolysis; kinetics; ageing;

D O I：

10.1016/0266-3538(96)00014-0

中图分类号：

TB33 [复合材料];

学科分类号：

摘要：

Polyester prepolymers were used as model compounds of the corresponding networks in a study of relationships between structure and hydrolytic stability. A comparison of various types of prepolymers allowed us to establish that the hydrolytic stabilities are in the order: propylene glycol (PG) < neopentyl glycol (NPG), maleic acid(MA) < isophthalic acid (PA). For industrial prepolymers, which are copolyesters based on combinations of the above monomers, it appears that the overall hydrolysis rate is lower than its theoretical value determined from a simple mixture rule from the individual rare constants determined from the experimental study of homopolyesters. (C) 1996 Elsevier Science Limited

引用

页码：733 / 737

页数：5

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