MgCl_2、CaCl_2、BaCl_2载体对Nd(O-i-Pr)_3-HAl(i-Bu)_2催化剂性能的影响  

Catalytic characteristics of rare earth catalyst supported by the chlorides of the elements of IIA groups used in butadiene polymerization

作　　者：张成林[1] 郭德军[1] 单成基[2] 

机构地区：[1]黑龙江八一农垦大学,黑龙江密山158308 [2]中国科学院长春应用化学研究所,吉林长春130022

出　　处：《化学研究与应用》2003年第5期701-703,共3页Chemical Research and Application

基　　金：中国科学院院长基金资助项目(031596)

摘　　要：Supported rare earth catalysts were made from Nd(OiPr)3 and the chlorides of the elements of ⅡA groups which were used as supporters of the catalyst.In the study on the relationship between the composition of supporters and the polymerization activity of butadiene in the presence of the supported rare earth catalysts,it was found that the electronegativity of ⅡA groups elements had an obvious effect on the activity of supported catalysts that the activity and stereospecificity of the supported catalyst increased with the increasing of the electronegativity.This phenomenon was explained in terms of the interaction between the HOMO of the butadiene and the LUMO of the neodymium.Supported rare earth catalysts were made from Nd(OiPr)3 and the chlorides of the elements of ⅡA groups which were used as supporters of the catalyst.In the study on the relationship between the composition of supporters and the polymerization activity of butadiene in the presence of the supported rare earth catalysts,it was found that the electronegativity of ⅡA groups elements had an obvious effect on the activity of supported catalysts that the activity and stereospecificity of the supported catalyst increased with the increasing of the electronegativity.This phenomenon was explained in terms of the interaction between the HOMO of the butadiene and the LUMO of the neodymium.

关 键 词：MgCl2 CaCl2 BACL2 载体 Nd(O-i-Pr)3-HAl(i-Bu)2 稀土催化剂 性能 离子电负性 碱土金属氯化物 丁二烯 聚合 

分 类 号：O643.36[理学—物理化学] O632.12[理学—化学]