新型聚酰胺酰亚胺的合成及其热稳定性  

Synthesis and Thermal Stability of New Poly(amide-imide)s

作　　者：张涛 姚金水[2] 杨志勇[2] 王丹青 朱政 

机构地区：[1]枣庄市职业学院,山东枣庄277800 [2]山东轻工业学院材料科学与工程学院玻璃与功能陶瓷加工与测试技术山东省重点实验室,山东济南250353 [3]枣庄市商务局,山东枣庄277101

出　　处：《合成化学》2012年第2期214-216,共3页Chinese Journal of Synthetic Chemistry

基　　金：国家自然科学基金资助项目(20374035);山东省自然科学基金资助项目(Y2006F42);教育部新世纪人才计划资助项目(NCET-07-0521)

摘　　要：L-丙氨酸与均苯四甲酸二酐经缩合反应制得手性酰亚胺(1);1与二苯基甲烷二异氰酸酯聚合制得新型的以L-丙氨酸为手性源的聚酰胺酰亚胺(2),其结构经1H NMR和FT-IR表征。用DSC和TGA研究了2的结晶性能和热稳定性,同时对2的溶解性能进行了探讨。结果表明,2的Tm为357.6℃,失重5%的分解温度为215℃;2在常温下溶于DMF,DMAc,DMSO和NMP。A new chiral poly（amide-imide）s（2） was prepared by condensation reaction of L-alanine and pyromellitic dianhydride to give chiral imine,followed by polymerization with 4,4′-diphenylmethane diisocyanate.The structures were characterized by 1H NMR and FT-IR.The crystallization and thermal stability of 2 were investigated by DSC and TGA.By the same time,the dissolution properties of 2 were discussed,too.The results showed that Tm of 2 was 357.6 ℃,decomposition temperature was 215 ℃ at weight loss 5%,and soluble in DMF,DMAc,DMSO,NMP at room temperature.

关 键 词：L-丙氨酸 手性 聚酰胺酰亚胺 热稳定性 聚合 合成 

分 类 号：O633.6[理学—高分子化学]