摘要
本文研究了以对苯二甲酰氯和已二胺为单体、酰胺-盐(NMP-LiCl+CaCl_2)为溶剂体系、三乙胺为酸吸收剂的低温溶液缩聚法聚对苯二甲酰已二胺的合成。在优选的聚合条件下,可以获得聚合物对数比浓粘度(ηinh)为0.8的均相溶液(30℃,浓H_2SO_4中测定),这对原液纺丝和薄膜制备是极为有益的。聚合物的DSC分析表明。
In this paper the synthesis of polyhexamethylene terephthalamide (PHTA)by low temperature polycondensation from terephthoyl chloride (TPC) and hexamethyleaediamine (HDA) in the amide-salts (NMP-LiCl-CaCl2) solvent system was studied. Triethylamine (TEA) was used as an acid acceptor. The homogeneous reaction solution of polymer with about 0.8dl/g (inherent viscosity) , which is available for the preparation of polymer film and fiber, can be obtained. The PHTA obtained was charactered by FTIR and DSC. Tm and Td were 370℃ and 468℃ respectively.
出处
《高分子材料科学与工程》
EI
CAS
CSCD
北大核心
1989年第2期35-39,共5页
Polymer Materials Science & Engineering
