Asymmetric Cationic [P, O] Type Palladium Complexes in Olefin Homopolymerization and Copolymerization  

作　　者：Shuoyan Xiong Lihua Guo Shumiao Zhang Zhe Liu 

机构地区：[1]Key Laboratory of Soft Matter Chemistry, Chinese Academy of Sciences, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230026, China [2]Shool of Chemistry and ChemtcalEngmeermg, Qufu Normal University, Qufu, Shandong 273165, China

出　　处：《Chinese Journal of Chemistry》2017年第8期1209-1221,共13页中国化学（英文版）

基　　金：Acknowledgement This work was supported by the National Natural Science Foundation of China （NSFC, No. 21304054）, the Taishan Scholar Foundation, Foundation of Qufu Normal University （No. xkJ201603）, and the National College Students Innovation Project （No. 201610446029）.

摘　　要：Metal-catalyzed ethylene homopolymerization and ethylene-polar monomer copolymerization to produce new kinds of polyolefins with novel microstructures are of great interest. So far, there are some disadvantages for traditional transition metal catalyst systems. Therefore, it is critical to develop new catalysts or alternative strategies. In recent years, some cationic [P, O] palladium complexes have been demonstrated with the abilities to obtain oligomers and the high molecular weight polymers. Most importantly, these complexes showed high activity and generated polymers with specific microstructures when used for copolymerization of ethylene with industrially relevant polar monomers. This review summarizes several types of high performance cationic [P, O] palladium catalysts in ethylene oligomerization, ethylene homopolymerization and the copolymerization of ethylene with polar monomers Specially, the regulation of steric and electronic effects at specific sites of the metal complexes was focused.Metal-catalyzed ethylene homopolymerization and ethylene-polar monomer copolymerization to produce new kinds of polyolefins with novel microstructures are of great interest. So far, there are some disadvantages for traditional transition metal catalyst systems. Therefore, it is critical to develop new catalysts or alternative strategies. In recent years, some cationic [P, O] palladium complexes have been demonstrated with the abilities to obtain oligomers and the high molecular weight polymers. Most importantly, these complexes showed high activity and generated polymers with specific microstructures when used for copolymerization of ethylene with industrially relevant polar monomers. This review summarizes several types of high performance cationic [P, O] palladium catalysts in ethylene oligomerization, ethylene homopolymerization and the copolymerization of ethylene with polar monomers Specially, the regulation of steric and electronic effects at specific sites of the metal complexes was focused.

关 键 词：PALLADIUM olefin polymerization COPOLYMERIZATION cationic metal center substituent effect 

分 类 号：O614.823[理学—无机化学] TQ536[理学—化学]