REVERSIBLE CROSS-LINKING IN EPOXY-RESINS .2. NEW APPROACHES

被引：111

作者：

SASTRI, VR ^{[1
]}

TESORO, GC ^{[1
]}

机构：

[1] POLYTECH INST NEW YORK,BROOKLYN,NY 11201

来源：

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

关键词：

D O I：

10.1002/app.1990.070390703

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Epoxy resins of varying epoxy equivalent weight were crosslinked with 4,4*‐dithiodianiline (DTDA) at a 2/1 mole ratio. Resin of equivalent weight 190 (Epon 828) was cured with DTDA at mole ratios varying from 2/1 to 1.25/1. Properties of cured resins were evaluated and their reduction was investigated. Under the conditions used, reduction to the point of complete solubilization was possible providing crosslink density did not exceed a threshold value tentatively established as Mc = 400 −; 500. Recurring of reduced resins was accomplished by oxidation and by reaction of thiol groups with polyfunctional reagents, including bismaleimides and polyepoxides. Copyright © 1990 John Wiley & Sons, Inc.

引用

页码：1439 / 1457

页数：19

共 18 条

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