Title : ( Ethylene Homo-and Copolymerization Using a Bis-IndZrcl2 Metallocene Catalyst: Structural Composition Distribution of the Copolymer )
Authors: M.Mortazavi , H. Arabi , Gholamhossein Zohuri , S. Ahmadjo , M. Nekoomanesh , M. Ahmadi ,
Full TextAbstract
A bis-IndZrCl2 catalyst was synthesized and used for ethylene homo- and copolymerization. The activity of the catalyst increases with increasing Al/Zr ratio; optimum activity was reached at 60 8C. Mv of the polymer decreased as the polymerization temperature increased; increasing reaction pressure increased bothMv and catalyst activity. The copolymerization of ethylene with different a-olefins was studied using the same catalyst system. The results indicate that under identical conditions there was a general decrease in the rate of polymeri- zation as compared to the homopolymeriza- tion. The CCD and the lamellar thickness were investigated using DSC. The heterogeneity of the CCD increasedwith increasing comonomer content and molar mass.
Keywords
, comonomer composion distribution; ethylene/ a, olefin copolymerization; metallocene; polyethylene; structural analysis
@article{paperid:1011860,
author = {M.Mortazavi and H. Arabi and Zohuri, Gholamhossein and S. Ahmadjo and M. Nekoomanesh and M. Ahmadi},
title = {Ethylene Homo-and Copolymerization Using a Bis-IndZrcl2 Metallocene Catalyst: Structural Composition Distribution of the Copolymer},
journal = {Macromolecular Reaction Engineering},
year = {2009},
volume = {3},
month = {May},
issn = {1862-832x},
pages = {263--270},
numpages = {7},
keywords = {comonomer composion distribution; ethylene/ a-olefin copolymerization; metallocene; polyethylene; structural analysis},
}
%0 Journal Article
%T Ethylene Homo-and Copolymerization Using a Bis-IndZrcl2 Metallocene Catalyst: Structural Composition Distribution of the Copolymer
%A M.Mortazavi
%A H. Arabi
%A Zohuri, Gholamhossein
%A S. Ahmadjo
%A M. Nekoomanesh
%A M. Ahmadi
%J Macromolecular Reaction Engineering
%@ 1862-832x
%D 2009
