A novel poly[acrylonitrile-co-(3-ammoniumcarboxylate-butenoic acid-methylester)]copolymer for carbon fiber precursor  

作　　者：An Qi Ju Shan Yi Guang Hong Yao Xu 

机构地区：[1]College of Materials Science and Engineering&State Key Laboratory for Modification of Chemical Fibers and Polymer Materials,Donghua University,Shanghai 201620,China [2]College of Chemistry&Chemical Engineering,Donghua University,Shanghai 201620,China

出　　处：《Chinese Chemical Letters》2012年第11期1307-1310,共4页中国化学快报（英文版）

基　　金：supported by the National Natural Science Foundation of China(Nos.51073031, 20971021 and 20974018);Doctoral Dissertation Innovation Project(No.BC201004)

摘　　要：A novel bifunctional comonomer 3-ammoniumcarboxylate-butenoic acid-methyl ester （ACBM） was synthesized tor preparing poly[acrylonitrile-co-（3-ammoniumcarboxylate-butenoic acid-methyl ester）] [P（AN-co-ACBM）] copolymer as a carbon fiber precursor. Differential scanning calorimetry results show that the P（AN-co-ACBM） exhibits a significantly improved stabilization performance compared with polyacrylonitrile （PAN）, such as lower cyclization temperature and smaller rate of heat release, which is mainly attributed to the initiation of ACBM through an ionic cyclization mechanism. Simultaneously, the rheological analysis shows that P（AN-co-ACBM） possesses better spinnabilitv than PAN.A novel bifunctional comonomer 3-ammoniumcarboxylate-butenoic acid-methyl ester （ACBM） was synthesized tor preparing poly[acrylonitrile-co-（3-ammoniumcarboxylate-butenoic acid-methyl ester）] [P（AN-co-ACBM）] copolymer as a carbon fiber precursor. Differential scanning calorimetry results show that the P（AN-co-ACBM） exhibits a significantly improved stabilization performance compared with polyacrylonitrile （PAN）, such as lower cyclization temperature and smaller rate of heat release, which is mainly attributed to the initiation of ACBM through an ionic cyclization mechanism. Simultaneously, the rheological analysis shows that P（AN-co-ACBM） possesses better spinnabilitv than PAN.

关 键 词：POLYACRYLONITRILE Carbon fiber Thermal analysis DSC POLYMERIZATION 

分 类 号：TQ342.31[化学工程—化纤工业] TQ342.742