Qingdao University of Science and Technology

Shandong Chambroad Petrochemicals Co., Ltd.

Shaofeng Liu

Zhibo Li

Bo Luan

Na Zhao

Chuanli Ren

Xiaohui Fu

Jiashuai Liu

Yanhong Xing

Jinbo Zhang

Yongchen Zhao

A preparation method of bimetallic catalysts based on anthracene frameworks and use thereof in olefin polymerization is reported. Anthrecene frameworks were introduced, heat resistance of the catalysts is improved, and by changing central metals and configurations of the frameworks, steric and electronic effects of the metal catalysts of this model can be adjusted and controlled conveniently, and polyolefin polymer materials of different structures and different properties can be prepared, the bimetallic catalyst can be used in ethylene homopolymerization for preparation of high density polyethylene, ethylene/1-octene copolymerization for preparation of polyolefin elastomers and ethylene/norbornene copolymerization for preparation of cycloolefin copolymers. The bimetallic catalyst based on anthracene frameworks can be used in olefin high temperature solution polymerization for preparing polyolefin elastomers and cycloolefin copolymers, the polyolefin elastomers obtained have molecular weights as high as M=890 kg·mol, and the cycloolefin copolymers have copolymerization monomer insertion rates as high as 45 mol %.

Preparation of bimetallic catalyst based on anthracene frameworks and use thereof in olefin high temperature solution polymerization

Provided are a phosphazene compound, a method for preparing a phosphazene compound and a method for producing a polymer with a phosphazene compound as a catalyst. The compound of formula (I) or a solvate thereof, where A is a six- or eight-membered ring consisting of repeatedP&#x2550;N, and B is at least one of unsubstituted or substituted Calkylamino, unsubstituted or substituted Ccycloalkylamino, unsubstituted or substituted arylamino, or halogen, and B is attached to A at phosphorus inP&#x2550;N, where R is unsubstituted or substituted Calkyl, unsubstituted or substituted Ccycloalkyl, unsubstituted or substituted aryl, or unsubstituted or substituted benzyl, or R forms Cheterocycloalkyl together with N attached thereto. 

Phosphazene compound, preparation method and use thereof

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Shandong, China

Shaofeng Liu