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Polymerization of propylene by the three-component system comprising titanium(III) chloride,ethylaluminum sesquichloride,and sodium sulfate
Authors:Kiichiro Matsumura  Yuji Atarashi  Osamu Fukumoto
Abstract:Sodium sulfate increases the polymerization activity of the titanium(III) chloride (AA)–ethylaluminum sesquichloride system for the polymerization of propylene. The reaction of ethylaluminum sesquichloride with sodium sulfate at mild conditions isolates diethylaluminum chloride, which is responsible for the polymerization activity. The reaction of these components at severe conditions forms an organometallic compound containing sulfate, (C2H5)4Al2SO4, and this compound is a powerful activator for titanium(III) chloride.
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