Synthesis of Polybutadienes with Controllable Microstructure by a Novel Binary Nd(3-NBSO_3)_3/Alkylaluminum Catalyst System  

作　　者：Ji-qin Wen Xue-quan Zhang 代全权 

机构地区：[1]Key Laboratory of Synthetic Rubber,Changchun Institute of Applied Chemistry,Chinese Academy of Sciences [2]Jiangsu Province Institute for Medical Equipment Testing

出　　处：《Chinese Journal of Polymer Science》2015年第3期475-480,共6页高分子科学（英文版）

基　　金：financially supported by the National Basic Research Program of China(No.2015CB654700(2015CB674702));The CAS Hundred Talents Program(Y220011001);the National Natural Science Foundation of China(Nos.51473156 and 51203147);Jilin Provincial Research Fund for Basic Research,China(No.20130102007JC)

摘　　要：The polymerization of 1,3-butadiene was examined by using a novel halogen-free neodymium m-nitrobenzenesulfonate （Nd（3-NBSOa）3·donors）/alkylaluminum binary catalyst system. The catalyst showed fairly high activity and controllable selectivity. The microstructure of the resultant polymer was adjustable by variation of electron donor and/or the alkylaluminum. ^13C-NMR and thermal analysis demonstrate that the produced polybutadienes have stereo-block chain structures of cis-1,4 and trans-1,4 segments with adjustable Tm and To. The neodymium sulfonate-based catalyst is believed to be significant in regulating the chain structure of polydienes and in exploring 1,3-diene polymerization mechanism.The polymerization of 1,3-butadiene was examined by using a novel halogen-free neodymium m-nitrobenzenesulfonate （Nd（3-NBSOa）3·donors）/alkylaluminum binary catalyst system. The catalyst showed fairly high activity and controllable selectivity. The microstructure of the resultant polymer was adjustable by variation of electron donor and/or the alkylaluminum. ^13C-NMR and thermal analysis demonstrate that the produced polybutadienes have stereo-block chain structures of cis-1,4 and trans-1,4 segments with adjustable Tm and To. The neodymium sulfonate-based catalyst is believed to be significant in regulating the chain structure of polydienes and in exploring 1,3-diene polymerization mechanism.

关 键 词：POLYBUTADIENE MICROSTRUCTURE Ziegler-Natta polymerization. 

分 类 号：TQ330.1[化学工程—橡胶工业]