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
收藏
页码：599 / 605
页数：7
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