双酚A/苯胺型苯并噁嗪热固化质量损失及机理  

Weight loss and mechanism during the heat curing of bisphenol A /aniline based benzoxazine

作　　者：刘明[1] 李超[1] 张娜[1] 冉起超[1] 顾宜[1] 

机构地区：[1]四川大学高分子科学与工程学院,高分子材料工程国家重点实验室,四川成都610065

出　　处：《热固性树脂》2013年第5期15-20,共6页Thermosetting Resin

基　　金：国家自然科学基金项目(21104048)资助

摘　　要：采用傅里叶红外光谱测试(FT-IR)、示差扫描量热法(DSC)等研究了重结晶双酚A/苯胺型苯并噁嗪热固化过程中的质量损失及其与固化机理之间的关系。通过收集苯并噁嗪固化过程中的小分子挥发物,结合FT-IR、核磁共振氢谱(1H-NMR)尝试解释了苯并噁嗪在固化过程中小分子的释放机理。结果表明,苯并噁嗪热固化过程中的质量损失和挥发物的产生均主要来自于噁嗪环开环后所形成中间体的裂解。The relationship between the weight loss during heat curing of recrystallized bisphenol A/aniline based benzoxazine and the curing mechanism was investigated by FT -IR and DSC. The release mechanism of small molecules of benzoxazine curing process was attempted to explain by collecting small molecule volatiles of benzoxazine curing process and using FF - IR, 1 H - NMR. The results showed that the weight loss of heat curing process and the generation of volatiles were mainly from the fracture of intermediates formed by oxazine ring - opening.

关 键 词：苯并噁嗪 开环聚合 质量损失 裂解 

分 类 号：TQ323.1[化学工程—合成树脂塑料工业]