一种超支化半芳香聚酰胺的合成及表征  

Synthesis and Properties of Hyperbranched Semi-Aromatic Polyamide

作　　者：冯宗财 袁爽[1,2] 刘芳[2] 赵世鹏[1,2] 宋秀美 郭玉婷 钟诗颖 

机构地区：[1]岭南师范学院化学科学与技术学院广东高校新材料工程技术开发中心,广东湛江524048 [2]华南理工大学材料科学与工程学院,广东广州510640

出　　处：《高分子材料科学与工程》2016年第7期35-40,46,共7页Polymer Materials Science & Engineering

基　　金：广东省自然科学基金资助项目(S2011010001544);高分子材料工程国家重点实验室开放课题基金(KF201208);国家星火计划项目(2012GA780015)

摘　　要：以乙二胺和均苯三甲酰氯为原料通过A2+B3方法合成超支化半芳香型聚酰胺(HBPE),研究了反应条件对聚合反应的影响,利用傅里叶变换红外光谱、核磁共振谱等对合成的超支化半芳香聚酰胺进行了结构表征。研究结果表明,控制单体官能团摩尔比(COCl∶NH2)为1.1∶1,催化剂LiCl浓度为0.0125g/L,反应温度为50℃,反应时间为14h,制得的HBPE的相对分子质量最大,其最大重均相对分子质量及其分布分别为4.3×104和1.59。热重分析结果表明HBPE具有较好的热稳定性。Trimesoyl chloride and ethylenediamine were chosen as monomers to prepare hyperbranched polyamides（HBPE）via A2＋B3polycondensation.The influences of reaction conditions on the viscosity of the polymer were studied.The structures of polymerization products were confirmed as polyamides according to the spectra of FT-IR,1H-NMR and 13C-NMR.The results show that the molecular weight of HBPE is biggest when three benzene formyl chloride concentration is 0.5mol/L,the reaction temperature is 50℃,the reaction time is 14 h,LiCl dosage is 0.0125g/L,monomer ratio of functional group（n（COCl）∶n（NH2））is 1.1∶1.Thermal gravimetric analysis（TG）shows that HBPE has good thermal stability.

关 键 词：超支化 半芳香型聚酰胺 合成 

分 类 号：TQ323.6[化学工程—合成树脂塑料工业]