Metallocene complexes Cp2TiCl2, Cp2ZrCl2, Cp2Zr(N n Bu2)2, Cp2Ti(? 1-OC(O)C6H5)2 and Cp2Zr(? 1-OC(O)C6H5)2 were supported on MgCl2/SiCl4-n (n-C6H13O) n carrier and used for ethylene polymerization. The supported complexes result in highly active catalysts when treated with different aluminum alkyl-based co-catalysts. These catalysts are able of tuning the final properties of the produced polyethylenes. Mixed composites of metallocenes and conventional Ziegler-Natta catalysts supported on the same carrier were also studied. A supported zirconocene Cp2Zr(? 1-OC(O)C6H5)2 on MgCl2/SiCl4-n (n-C6H13O) n resulted in a highly active catalyst that eject control on the molecular weight, crystallinity and morphology of the resultant polyethylene.
Ethylene polymerization using metallocenes supported on MgCl2/SiCl4-n(n-C6H13O)n
Elisa Passaglia;
2007
Abstract
Metallocene complexes Cp2TiCl2, Cp2ZrCl2, Cp2Zr(N n Bu2)2, Cp2Ti(? 1-OC(O)C6H5)2 and Cp2Zr(? 1-OC(O)C6H5)2 were supported on MgCl2/SiCl4-n (n-C6H13O) n carrier and used for ethylene polymerization. The supported complexes result in highly active catalysts when treated with different aluminum alkyl-based co-catalysts. These catalysts are able of tuning the final properties of the produced polyethylenes. Mixed composites of metallocenes and conventional Ziegler-Natta catalysts supported on the same carrier were also studied. A supported zirconocene Cp2Zr(? 1-OC(O)C6H5)2 on MgCl2/SiCl4-n (n-C6H13O) n resulted in a highly active catalyst that eject control on the molecular weight, crystallinity and morphology of the resultant polyethylene.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
