Preparation and Characterization of Polysulfonamide Statistical Copolymers from Three Aromatic Diamines  

作　　者：刘丽 王维涛 肖长发 

机构地区：[1]School of Materials Science and Engineering,Shanghai University [2]Key Laboratory of Hollow Fiber Membrane Materials and Membrane Processes,Ministry of Education,Tianjin Polytechnic University

出　　处：《Journal of Shanghai Jiaotong university(Science)》2010年第1期114-118,共5页上海交通大学学报（英文版）

基　　金：the National Natural Science Foundation of China (No. 50973059);the Scientific Research Foundation of 2009 Graduate School of Shanghai University

摘　　要：Various polysulfonamide （PSA） statistical copolymers were synthesized by polycondensation of three aromatic diamines and terephthaloyl chloride. The inherent viscosities of the resulting PSA copolymers range from 1.54 to 1.66 dL/g. The precipitated PSA copolymers with feed content of p-phenylene diamine （PPD） being less than 50% （mole fraction） can be redissolved in N-methyl-2-pryrrolidone （NMP） or N, N-dimethylacetamide （DMAc） with lithium chloride of WLiC1 ： 0.02. All of the PSA copolymers exhibit enhanced tensile strength in comparison with PSA and still maintain excellent thermal stability in either air or nitrogen atmosphereVarious polysulfonamide(PSA) statistical copolymers were synthesized by polycondensation of three aromatic diamines and terephthaloyl chloride.The inherent viscosities of the resulting PSA copolymers range from 1.54 to 1.66 dL/g.The precipitated PSA copolymers with feed content of p-phenylene diamine(PPD) being less than 50%(mole fraction) can be redissolved in N-methyl-2-pryrrolidone(NMP) or N,N-dimethylacetamide(DMAc) with lithium chloride of wLiCl=0.02.All of the PSA copolymers exhibit enhanced tensile strength in comparison with PSA and still maintain excellent thermal stability in either air or nitrogen

关 键 词：aromatic diamine terephthaloyl chloride （TPC） polysulfonamide （PSA） statistical copolymer oolvcondensation 

分 类 号：TQ225.261[化学工程—有机化工] O633.13[理学—高分子化学]