NMP/助溶剂体系中含氯对位芳香族聚酰胺的合成与表征  

Synthesis and Characterization of Chlorinated Poly(para-phenylene terephthanlamide)in NMP/Consolvent System

作　　者：尚建勋[1] 于俊荣[1] 陈蕾[1] 王彦[1] 诸静[1] 胡祖明[1] 

机构地区：[1]东华大学纤维材料改性国家重点实验室,上海201620

出　　处：《东华大学学报（自然科学版）》2016年第1期1-5,共5页Journal of Donghua University(Natural Science)

基　　金：国家重点基础研究发展计划(973)资助项目(2011CB606103);国家高技术研究发展计划(863)资助项目(2012AA03212)

摘　　要：采用低温溶液缩聚法将对苯二甲酰氯(TPC)和邻氯对苯二胺(Cl-PPD)在N-甲基吡咯烷酮(NMP)/助溶剂体系中进行缩聚反应,制备了较高相对分子质量的含氯对位芳香族聚酰胺(ClPPTA)树脂,并用傅里叶变换红外光谱对Cl-PPTA分子结构进行了表征.研究了Cl-PPD浓度、初始反应温度、助溶剂加入量、TPC和Cl-PPD的单体摩尔比、反应时间等因素对Cl-PPTA比浓对数黏度的影响,获得了较优的聚合条件.结果发现,NMP/LiCl体系相对于NMP/CaCl2体系更易获得相对分子质量较高的Cl-PPTA,最佳条件下可制得比浓对数黏度达2.38dL/g的Cl-PPTA.Chlorinated poly（para-phenylene terephthanlamide）（Cl-PPTA） with relatively high molecular weight was synthesized by low-temperature solution polycondensation between 2-chloro-1,4-diaminobenzene（Cl-PPD）and terephthaloyl chloride（TPC）in N-methyl-2-pyrrolidone（NMP）/consolvent system.The molecular structure of Cl-PPTA was characterized by Fourier transform infrared spectroscopy（FTIR）.The effects of the concentration of Cl-PPD,initial reaction temperature,cosolvent content,molar ratio of TPC to Cl-PPD and reaction time on the inherent viscosity of Cl-PPTA were investigated.The optimum polymerization conditions were obtained.The results show that it is much easier to get higher molecular weight of Cl-PPTA in NMP/LiCl system than that in NMP/CaCl2 system.The Cl-PPTA with inherent viscosity of 2.38 dL/g can be produced under the optimum condition.

关 键 词：含氯对位芳香族聚酰胺 低温溶液缩聚法 合成 比浓对数黏度 

分 类 号：TQ340.13[化学工程—化纤工业]