Crosslinking in phenylethynyl-terminated polyimides

被引：24

作者：

Hinkley, JA ^{[1
]}

Jensen, BJ ^{[1
]}

机构：

[1] NASA,LANGLEY RES CTR,COMPOSITES & POLYMERS BRANCH,HAMPTON,VA 23681

来源：

HIGH PERFORMANCE POLYMERS | 1996年 / 8卷 / 04期

关键词：

D O I：

10.1088/0954-0083/8/4/008

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Stress relaxation of cured phenylethynyl-terminated polyimides was used to estimate their equilibrium rubbery moduli. The corresponding concentrations of elastically effective chains derived from classical rubber elasticity theory were less than one-fifth what would be expected if every chain end participated in a crosslink. A model is proposed to allow the calculation of the average crosslink functionalities.

引用

页码：599 / 605

页数：7

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