摘要
以脂肪族二元醇为分散介质 ,首先在双酚存在条件下完成偏苯三酸酐与二胺的亚胺化反应 ,在真空条件下蒸馏出脂肪族二元醇后 ,通过酯交换及高温熔融缩聚合成聚酯酰亚胺。该工艺不需要合成中间产物和使用价格较高的溶剂。实验结果表明 ,在适当反应条件下 ,大量脂肪族二元醇和双酚的存在不影响亚胺化反应。
An all-aromatic polyester-imide was synthesized with dibasic aliphatic alcohol as dispersion medium. In the presence of bisphenol the imidezation of trimellitic anhydride with diamine was carried out following vacuum distillating out aliphatic dibasic alcohol. The polyester-imide was obtained via transesterification and melt polycondensation at high temperature. The technology has differences from the general technology, no need to synthesize intermediate or use expensive solvent. Under proper condition the dibasic alcohol and bisphenol in the system have no effect to imidization.
出处
《现代化工》
EI
CAS
CSCD
北大核心
2001年第4期25-26,29,共3页
Modern Chemical Industry
关键词
聚酯酰亚胺
芳香族
分散介质
合成
工艺
Alcohols
Amines
Esterification
High temperature operations
Phenols
Polycondensation
Synthesis (chemical)
Vacuum applications
