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

Polymers

Haiyang Gao¹  Lixia Pei²  Yong Tang² 

[1] Key Laboratory for Polymeric Composite &State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu 610550, China;

关键词: anilido–imine chromium;    ethylene;    norbornene;    copolymerization;   

DOI  :  10.3390/polym8030069

来源: DOAJ

【 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. 13C 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.

【 授权许可】

Unknown