43 Branched-PE/i-PP Reactor Blends Prepared through Ethylene Gas-Phase Polymerization Catalyzed by α-Diimine Nickel Supported on iPP Particles

Branched-PE/i-PP reactor blends that contain above 20wt% of the branched PE were prepared through in-situ ethylene gas-phase polymerization catalyzed by α-diimine nickel catalysts ([ArN=C(CH3)-C(CH3)=NAr]NiCl2, Ar=2,6-dimethylphenyl) impregnated in iPP particles. The catalytic activities, the structure and properties of the in-situ blends were investigated and discussed. The activity results from the supported gas-phase polymerization were also compared to those from its unsupported slurry counterpart.