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Studies of ziegler-type catalysts for the polymerization of ethylene and propylene—I a highly active catalyst for the polymerization of ethylene

✍ Scribed by E.W. Duck; D. Grant; A.V. Butcher; D.G. Timms

Publisher
Elsevier Science
Year
1974
Tongue
English
Weight
518 KB
Volume
10
Category
Article
ISSN
0014-3057

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✦ Synopsis

The reaction product of an incompletely desolvated ethereal Grignard reagent and TiCI,,, when employed with a trialkylaluminium cocatalyst, possesses catalytic activit~ for the polymerization of ethylene, of some two orders of magnitude (on the basis of Ti) greater than that of traditional TiCI 3 catalysts. The yield of polyethylene increases linearly with increasing ~Bu3A1 concentration, when a constant amount of Et,Zn is also present.

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✍ A.E. Yildirim 📂 Article 📅 1981 🏛 Elsevier Science 🌐 English ⚖ 345 KB

A soluble ethylene catalyst were obtained by mixing a methylene dichloride solution of dichlorobislT-cyclopentadienyl) titanium (Cp2TiCI2) with a heptane solution of ethylaluminium sesquichloride (AlzEt3C13) or of diethylaluminium chloride {AIEt2CI). Ethylene was polymerized using these catalysts; t

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Studies of Ziegler-type catalysts for the polymerization of ethylene and propylene II The polymerization of ethylene with VOCl3-Et3Al2Cl3 (chlorinated activator) catalysts
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VOCla-Et3A12Cl 3 (chlorinated activator) catalysts have been employed for the polymerization of ethylene at T between 15 and 85 ° in n-hexane. Using butylperchlorocrotonate as the activator, the following catalyst efficiencies (g polymer/gV, hr, atmosphere ethylene in the cap gas) were achieved: l06