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Polymerization of Ethylene by the Silaned SiO2 -Mg(iBu)2-TiCl4-Al(iBu)3 Catalyst System

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Wed, 2014-03-26 13:22 — Maher An-Natsheh
Journal Title, Volume, Page: 
An-Najah University Journal for Research - Natural Sciences - Volume 7, Issue 1
Year of Publication: 
1992
Link: 
http://scholar.najah.edu/publication/journal-article/polymerization-ethylene-sil...
Authors: 
M.A. Abu-Eid
Department of Chemistry, Faculty of Science, An-Najah National University, Nablus, Palestine
Current Affiliation: 
Department of Chemistry, Faculty of Science, An-Najah National University, Nablus, Palestine
[email protected]
P.J. TAIT
Department of Chemistry, U. M. 1. S. T. , Sackville Street , Manchester M60 1QD , U.K
Preferred Abstract (Original): 

The polymerization of ethylene was conducted over the Silaned Si02 / Mg(iBu)2 I TiCl I Al (mu)3 and over the Stauffer AA type (1.1)/Al (iBu)3 catalyst systems at 60° C. The activity of the Sb2 — supported catalyst was about one hundred times higher than that of Stauffer AA. The rate — time profiles for both catalysts were found to be of acceleration type • The dependence of the spontaneous rate of polymerization with [Al (mu)3 I has been established for the Si02 — supported catalyst. A maximum rate was achieved at Al: Ti ratio of 512:1. The rate of ethylene production using Si02 — supported catalyst was increased by a factor of two when the prepolymerization time with propylene was 10 minutes.

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