Recent progress in immobilization of late-transition-metal complexes with diimine ligands for olefin polymerization  

作　　者：WU Wei JIANG Yan WU Hao LV ChunSheng LUO MingJian NING YingNan MAO GuoLiang 

机构地区：[1]Provincial Key Laboratory of Oil and Gas Chemical Technology,College of Chemistry and Chemical Engineering,Northeast Petroleum University

出　　处：《Chinese Science Bulletin》2013年第15期1741-1750,共10页

基　　金：supported by the National Natural Science Foundation of China (20972025);the China National Petroleum Corporation (CNPC)Innovation Foundation (2010D-5006-0504);Scientific Research Foundation for the Returned Overseas Chinese Scholars,Heilongjiang Province(41417837-8-08016);Scientific Research Foundation for Overseas Chinese Scholars,Department of education of Heilongjiang Province(1154H14)

摘　　要：Late-transition-metal(LTM) catalysts are a family of very flexible ethylene polymerization catalysts because their catalytic performance can be easily adjusted by modifying the ligand structure.Their less oxyphilicity character,which may promote the production of copolymers from ethylene and polar comonomers,is another aspect that attracts much attention in both academic and industrial fields.The immobilization of LTM catalysts on spherical supports is a crucial step prior to their use in the industrial processes of gas-phase or slurry polymerizations.This paper reviews recent developments in supported LTM catalysts for olefin polymerization,and summarizes loading methods and mechanisms of the immobilization of LTM catalysts on inorganic,organic,and inorganic-organic materials,and the effects of immobilization on catalytic activity,polymerization mechanism,and polymer morphology.Late-transition-metal （LTM） catalysts are a family of very flexible ethylene polymerization catalysts because their catalytic per- formance can be easily adjusted by modifying the ligand structure. Their less oxyphilicity character, which may promote the pro- duction of copolymers from ethylene and polar comonomers, is another aspect that attracts much attention in both academic and industrial fields. The immobilization of LTM catalysts on spherical supports is a crucial step prior to their use in the industrial processes of gas-phase or slurry polymerizations. This paper reviews recent developments in supported LTM catalysts for olefin polymerization, and summarizes loading methods and mechanisms of the immobilization of LTM catalysts on inorganic, organic, and inorganic-organic materials, and the effects of immobilization on catalytic activity, polymerization mechanism, and polymer morphology.

关 键 词：后过渡金属配合物 烯烃聚合 配体 亚胺 催化剂 聚合反应 催化性能 共聚单体 

分 类 号：O631.5[理学—高分子化学]