Author/Authors :
S.M.M ،Mortazavi Dapartment of Catalyst - Iran Polymer and Petrochemical Institute, Tehran, Iran , H ،Arabi Dapartment of Catalyst - Iran Polymer and Petrochemical Institute, Tehran, Iran , Gh ،Zhouri Department of Chemistry - Faculty of Science - Ferdowsi University, Mashhad, Iran , S ،Ahmadjo Dapartment of Catalyst - Iran Polymer and Petrochemical Institute, Tehran, Iran , M ،Nekoomanesh Dapartment of Catalyst - Iran Polymer and Petrochemical Institute, Tehran, Iran
كليدواژه :
Metallocene catalyst , polyethylene , molecular weight , polymerization condition , activity
چكيده لاتين :
Bis-2PhIndZrCl2 was synthesized by indirect method simply and quantitatively. The performance of the catalyst in
ethylene polymerization was investigated using different polymerization conditions. The activity of the catalyst went up
as the Al:Zr molar ratio increased to 2333:1 following to reduction by using higher Al/Zr ratio. The maximum activity
of the catalyst was obtained at polymerization temperature of 60 oC. The viscosity average molecular weight (Mv) of
the polymer decreased as the polymerization temperature increased; on the other hand the reaction pressure increased
the Mv of the polymer and the catalyst activity, as well.
