CURE KINETICS AND MECHANISMS OF A TETRAGLYCIDYL-4,4'-DIAMINODIPHENYLMETHANE DIAMINODIPHENYLSULPHONE EPOXY-RESIN USING NEAR IR SPECTROSCOPY

被引：110

作者：

STJOHN, NA ^{[1
]}

GEORGE, GA ^{[1
]}

机构：

[1] UNIV QUEENSLAND,DEPT CHEM,ST LUCIA,QLD 4072,AUSTRALIA

来源：

POLYMER | 1992年 / 33卷 / 13期

关键词：

NEAR IR SPECTROSCOPY; CHEMORHEOLOGY; CURE KINETICS; REACTION MECHANISMS; EPOXY RESIN;

D O I：

10.1016/0032-3861(92)90438-3

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The cure of tetraglycidyl-4,4'-diaminodiphenylmethane with 27 wt% diaminodiphenylsulphone at 160-degrees-C was studied using near i.r. spectroscopy. The changes in concentrations of epoxy, hydroxyl, ether and primary, secondary and tertiary amine groups during cure were calculated and empirical reaction rate curves derived for the various functional groups involved. An autocatalytic reaction mechanism was observed for both the primary and the secondary amine group reaction with epoxide. The secondary amine-epoxy reaction showed a substitution effect and is affected by the changes in rheological properties of the resin during gelation and vitrification. Two separate epoxy-hydroxyl reactions are observed, as well as a cyclization reaction due to impurities.

引用

页码：2679 / 2688

页数：10

共 28 条

[1] THERMOKINETICS AND CHEMORHEOLOGY OF THE CURE REACTIONS OF THE TETRAGLYCIDYL DIAMINO DIPHENYL METHANE DIAMINO DIPHENYL SULFONE EPOXY SYSTEMS [J].