引发剂AIBN对高性能炭纤维PAN原丝聚合反应影响  

Effect of AIBN on the copolymerization of acrylonitrile

作　　者：廉信淑 吴明金 叶宛丽[2] 肖建文 赵建华 

机构地区：[1]吉化研究院碳纤维研究所,吉林吉林132021 [2]吉林工业职业技术学院,吉林吉林132000

出　　处：《炭素技术》2012年第4期16-18,共3页Carbon Techniques

摘　　要：以丙烯腈(AN)为主单体,丙烯酸甲酯(MA)、甲叉丁二酸(IA)为二三单体,偶氮二异丁腈为引发剂,进行溶液自由基聚合。考察了引发剂浓度和加入方式对三元共聚合的影响。研究得出,温度为61℃,引发剂浓度为0.75%,升温前加入引发剂,合成了数均分子量为15.5万,重均分子量为33.6万,并且分子量分布指数小于3.0,单体转化率高于90%,增比黏度为1.39的高性能炭纤维用原丝纺丝液。In a certain proportion, AN/IA/MA co-polymers were prepared in the DMSO solution using AIBN as an initiator by free radical solution polymerization. Effect of the initiator concentration and adding method on the copolymerization were investigated. At 61 ℃, and the concentration of AIBN of 0.75%, AN copolymer with the molecular number of 155 000, the molecular weight of 336 000, the conversion of 90%, and the ratio of viscosity of 1.39 was synthesized when the initiator AIBN was injected first. The PDI of the AN copolymer was less than 3.0.

关 键 词：PAN基炭纤维 自由基共聚合 引发剂 

分 类 号：TQ342.742[化学工程—化纤工业]