摘要
本文采用对氨基酚、苯酚和甲醛为原料合成了一种新型的苯并 噁嗪中间体。运用FTIR和1H -NMR对中间体结构进行了表征。并采用1H -NMR方法研究了反应条件对中间体结构的影响 ,结果表明在 70～ 90℃下反应 1～ 2h有利于形成 噁嗪环。同时 ,对该中间体的固化反应进行了研究 ,表明该中间体具有较高的反应活性 ,并能够促进苯并 噁嗪树脂的固化反应进行。
s A novel kind of benzoxazine precursors was synthesized from p aminophenol,phenol and formaldehyde,and characterized by FTIR and 1H-NMR.The relation of reaction conditions to APPF precursors′ structure was studied by 1H-NMR,and the results showed that the reaction time of 1～2h gave more oxazine rings.The curing reactivity of the precursors was also studied.It was found that the precursors were highly reactive and could accelerat the curing reaction of benzoxazines.
出处
《塑料工业》
CAS
CSCD
北大核心
2001年第2期28-29,40,共3页
China Plastics Industry
