Living Chain-Walking (Co)Polymerization of Propylene and 1-Decene by Nickel ?-Diimine Catalysts.

ABSTRACT: Homo- and copolymers of propylene and 1-decene were synthesized by controlled chain-walking (co)polymerization using phenyl substituted ?-diimine nickel complexes activated with modified methylaluminoxane (MMAO). This catalytic system was found to polymerize propylene in a living fashion to furnish high molecular weight ethylene-propylene (EP) copolymers. The copolymerizations proceeded to give high molecular weight P/1-decene copolymers with narrow molecular weight distribution (Mw/Mn ? 1.2), which indicated a living nature of copolymerization at room temperature. The random copolymerization results indicated the possibility of precise branched structure control, depending on the polymerization temperature and time.

SUBMITTER: Li P 

PROVIDER: S-EPMC7564000 | biostudies-literature | 2020 Aug

REPOSITORIES: biostudies-literature