The microwave reaction of phenyl glycidyl ether with aniline on inorganic supports: A model for the microwave crosslinking of epoxy resins

被引:21
作者
Jullien, H
Petit, A
Merienne, C
机构
[1] UNIV PARIS 11,CNRS,URA 478,LAB REACT SELECT SUPPORTS,F-91405 ORSAY,FRANCE
[2] UNIV PARIS 11,CNRS,URA 1384,LAB CHIM & PHYSICOCHIM MILIEUX STRUCT,ICMO,F-91405 ORSAY,FRANCE
关键词
aniline; phenyl glycidyl ether; microwave reaction;
D O I
10.1016/0032-3861(96)88478-3
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 microwave reaction between equivalent amounts of phenyl glycidyl ether and aniline is studied on solid inorganic supports in 'dry media', as a model for the crosslinking reaction of epoxy resins, to determine any chemical peculiarities due to the use of microwave energy. The resulting products are compared with standards given by the conventional heating reaction. The nature of the support is a major parameter. With or without microwaves, clays or silica gel (and especially clays with lamellar structures, such as montmorillonite K10 or Tonsil BW3) provide epoxy conversion extents higher than aluminas, owing to their increased acidic properties. Besides the epoxy-amine addition products, etherification products of the phenyl glycidyl ether are formed by both hydroxyl-epoxy and epoxy-epoxy competitive reactions. When compared to conventional heating, microwaves do not qualitatively change the reaction products, but quantitatively modify their proportions, because both microwaves and the structure of the inorganic supports influence the relative kinetics of the different reaction paths. Copyright (C) 1996 Elsevier Science Ltd.
引用
收藏
页码:3319 / 3330
页数:12
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