Homo- and Copolymerization of Ethylene and Norbornene with Anilido-Imine Chromium Catalysts

被引：17
作者：
Pei, Lixia [1 ,2 ]
Tang, Yong [1 ]
Gao, Haiyang [3 ]
机构：
[1] Southwest Petr Univ, State Key Lab Oil & Gas Reservoir Geol & Exploita, Chengdu 610550, Peoples R China
[2] S China Univ Technol, Sch Chem & Chem Engn, Guangzhou 510641, Guangdong, Peoples R China
[3] Sun Yat Sen Univ, Sch Mat Sci & Engn, Key Lab Polymer Composite & Fuct Mat,New Polymer, Minist Educ,Guangdong Prov Key Lab High Performan, Guangzhou 510275, Guangdong, Peoples R China
来源：
POLYMERS | 2016年 / 8卷 / 03期
关键词：
anilido-imine chromium; copolymerization; norbornene; ethylene; HALF-SANDWICH CATALYSTS; ALPHA-DIIMINE CATALYSTS; TITANIUM COMPLEXES; VINYL-POLYMERIZATION; HOMOGENEOUS METALLOCENE; MOLECULAR-STRUCTURE; NICKEL-CATALYSTS; LIGAND STRUCTURE; ETHENE; MICROSTRUCTURE;
D O I：
10.3390/polym8030069
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
A series of anilido-imine chromium complexes have been used as precursors to catalyze homo- and copolymerization of ethylene and norbornene. The chromium complexes activated with methylalumoxane (MAO) exhibit good activities for homopolymerization of ethylene (E) to produce linear polyethylene and moderate activities for norbornene (N) polymerization to afford vinyl-type polynorbornene. Ethylene-norbornene copolymers with high incorporation of norbornene can be also produced by these catalysts. C-13 NMR and differential scanning calorimetry (DSC) analyses show that the copolymers are random products, and -NNN- and -EEE- units can be observed in the microstructure of the copolymers.
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页数：10
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