Author/Authors :
Jones Jr.، نويسنده , , Robert L. and Armoush، نويسنده , , Mahmoud Z. and Harjati، نويسنده , , Tjhunina and Elder، نويسنده , , Michael and Hummel، نويسنده , , Albert A. and Sullivan، نويسنده , , Jeffrey، نويسنده ,
Abstract :
Classic inorganic and more recent organometallic compounds capable of polymerizing ethylene to ultra high molecular are compared. Activated catalysts showed varying degrees of productivity when challenged with co-monomers. The general activity trend followed TiCl3 < Mg/Si–TiCl3 < metallocenes. A new phenoxyimine catalyst complex N-(3,5-diiodosalicylidene)cycloheptylamine titanium dichloride was useful in making UHMWPE and compared to previously reported phenoxyimine catalyst structures capable of living polyolefin polymerizations.
Keywords :
UHMWPE , Heterogeneous catalysts , FI catalysts , Single site catalysts
