CHEMICAL TOUGHENING OF EPOXIES .1. STRUCTURAL MODIFICATION OF EPOXY-RESINS BY REACTION WITH HYDROXY-TERMINATED POLY(BUTADIENE-CO-ACRYLONITRILE)

被引：39

作者：

SANKARAN, S ^{[1
]}

CHANDA, M ^{[1
]}

机构：

[1] INDIAN INST SCI,DEPT CHEM ENGN,BANGALORE 560012,KARNATAKA,INDIA

来源：

JOURNAL OF APPLIED POLYMER SCIENCE | 1990年 / 39卷 / 07期

关键词：

D O I：

10.1002/app.1990.070390704

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

In an attempt to toughen the epoxy resin matrix for fiber‐reinforced composite applications, a chemical modification procedure of a commercially available bisphenol‐A‐based epoxy resin using reactive liquid rubber HTBN [hydroxy‐terminated poly(butadiene‐co‐acrylonitrile)] and TDI (tolylene diisocyanate) is described. The progress of the reaction and the structural changes during modification process are studied using IR spectroscopy, viscosity data, and chemical analysis (epoxy value determination). The studies support the proposition that TDI acts as a coupling agent between the epoxy and HTBN, forming a urethane linkage with the former and an oxazolidone ring with the latter. The chemical reactions that possibly take place during the modification are discussed. Copyright © 1990 John Wiley & Sons, Inc.

引用

页码：1459 / 1466

页数：8

共 13 条

[1]

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