Free-volume hole properties in thermosetting plastics probed by positron annihilation spectroscopy: Chain extension chemistry

被引：53
|
作者：
Jean, YC [1 ]
Deng, Q [1 ]
Nguyen, TT [1 ]
机构：
[1] HERCULES INC,RES CTR,WILMINGTON,DE 19894
来源：
MACROMOLECULES | 1995年 / 28卷 / 26期
关键词：
D O I：
10.1021/ma00130a018
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Free-volume hole sizes and fractions in a series of thermosetting plastics (tetraglycidyl-diaminodiphenylmethane (TGDDM), diglycidyl ether of Bisphenol A (DGEBA) cross-cured with diaminodiphenyl sulfones (DDS)) are measured by using positron annihilation lifetime (PAL) spectroscopy. Relevant mechanical properties are measured in these polymers which have different configurational isomers and chain extensions of curing oligomers. Correlations between the obtained free-volume hole spectroscopy to determine materials parameters and engineering problems are discussed.
引用
收藏
页码：8840 / 8844
页数：5
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