Network chain orientation in the toughening process of the elastomer modified mesogenic epoxy resin

被引：28
|
作者：
Ochi, M [1 ]
Morishita, T [1 ]
Kokufu, S [1 ]
Harada, M [1 ]
机构：
[1] Kansai Univ, Fac Engn, Dept Appl Chem, Suita, Osaka 5648680, Japan
来源：
POLYMER | 2001年 / 42卷 / 24期
关键词：
elastomer modification; mesogenic epoxy resin; toughening;
D O I：
10.1016/S0032-3861(01)00474-8
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
A biphenol-type epoxy resin, which has a mesogenic group in the backbone moiety, was modified with a reactive elastomer (CTBN). Toughness of the epoxy resin was significantly increased with the addition of the CTBN elastomer compared with that of the bisphenol-A type epoxy resin. It was clearly observed by SEM that a large plastic deformation occurred near the crack-tip in the biphenol-type epoxy resin modified with CTBN. The arrangement of the network chains in the plastic deformation region was quantitatively studied by polarized microscopic FT-IR technique, which was related to the toughening mechanism of the elastomer modified epoxy resin. (C) 2001 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：9687 / 9695
页数：9
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