低温溶液缩聚法制备聚间苯二甲酰对苯二胺  

Preparation of Poly(p-phenyleneisophthalamide)by Low Temperature Solution Polycondensation

作　　者：吴红枚[1,2] 蒋一成 梁振辉[1,2] 王榆元[1,2] WU Hong-mei;JAING Yi-cheng;LIANG Zhen-hui;WANG Yu-yuan(Department of Polymer Science,College of Chemistry and Chemical Engineering,University of South China,Hengyang 421001,China;Hunan Key Laboratory for the Design and Application of Actinide Complexes,University of South China,Hengyang 421001,China)

机构地区：[1]南华大学化学化工学院高分子材料与工程系,湖南衡阳421001 [2]南华大学湖南省天然锕系元素配合物的设计与应用重点实验室,湖南衡阳421001

出　　处：《塑料工业》2020年第4期15-19,47,共6页China Plastics Industry

基　　金：国家自然科学基金项目(21104031)。

摘　　要：采用低温溶液缩聚法制备了聚间苯二甲酰对苯二胺(PPIA),讨论了单体浓度、单体物质的量配比、反应温度等因素对聚合反应的影响,并用红外光谱(IR)、热重分析(TG)、X射线衍射(XRD)、扫描电镜(SEM)对实验产物进行了测定。红外检测出的特征峰符合PPIA的结构特征,热重测得热分解速率最大温度在520℃左右,X射线衍射表明聚合物有明显结晶现象,并且扫描电镜显示下的聚合物结构聚集状态良好。Poly(p-phenyleneisophthalamide)(PPIA)was prepared by low temperature solution polycondensation method.The effects of molar concentration of monomer,molar ratio of monomer and reaction temperature on the experiment were discussed.The experimental products were determined by infrared spectroscopy(IR),thermogravimetric analysis(TG),X-ray diffraction(XRD)and scanning electron microscopy(SEM).The characteristic peaks detected by IR could satisfy the basic structure of PPIA and the maximum temperature of thermal decomposition rate by TG is about 520℃.XRD indicates that the polymer has obvious crystallization phenomenon,and the polymer structure aggregates well under SEM.

关 键 词：聚间苯二甲酰对苯二胺 低温溶液缩聚法 因素分析 表征 

分 类 号：TQ323.6[化学工程—合成树脂塑料工业]