TER-COPOLYMERIZATION OF ETHYLENE - AROMATIC VINYL COMPOUND - VINYL NORBORNENE

摘要

PURPOSE: An ethylene-aromatic vinyl compounds-vinyl norbornene ter-copolymer is provided which has high activity, high molecular weight and improved copolymerization of aromatic vinyl compound, and is useful because the terminal double bonds are utilized for many purposes. CONSTITUTION: The ter-copolymer consists of 50-90mol% of ethylene, 1-55mol% of aromatic vinyl compound and 0.01-10mol% of vinyl norbornene and are polymerized by the assistant catalyst and transitional metal catalyst represented by the structure (I), wherein M is IVB group metals such as titanium, zirconium and hafnium; Cp1 is unsubstituted cyclopentadienyl, non-cyclic, 1-4 alkyl group substituted cyclopentadienyl, substituted or non-substituted indenyl, substituted or non-substituted fluorenyl group; Y is hydrogen, C1-10 silyl, alkyl, aryl and their combinations, A is C1-30 alkyl, alkylamido or cyclopentadienyl derivatives as Cp1; X is hydrogen, chlorine, bromine, methyl, ethyl, phenyl or diene; when A is Cp1 derivatives, the transition metal complex has racemic structure and d or l-form is used.