SYNTHESIS OF A NEW SILICONE-CONTAINING BISMALEIMIDE COPOLYMER RESIN

A copolymer of bismaleimide-diallylbisphenol A-diphenylsilandiol was synthesized and the copolymerisation was studied by using N-phenylmaleimide, bisphenol A and diphenyl-silandiol as model compounds. The copolymer could be well. cured around 200 degrees C, and the cured resins had good thermal stability. In the range of 170-210 degrees C, a higher curing temperature was favorable to obtain more thermal stable resin by reducing the content of diphenylsilandiol cyclo-homopolymer in resin which would spoil its-thermal stability.

双马来酰亚胺树脂基体的改性

制备了一种新的耐高温双马来酰亚胺树脂体系,它主要由两种单体共聚而成,一种是商品化的4,4′-双马来酰亚胺基-二笨甲烷,另一种是自己合成的烯丙基双酚A。本文重点研究了该树脂的溶解性及反应性,固化树脂的耐热性和力学性能。结果表明,树脂有良好的溶解性和在常温下有很好的粘性等特点,固化树脂具有优良的力学性能和耐热性。