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Proceedings Paper

FTIR studies of titanium tetrachloride and magnesium dichloride complexes with aromatic esters relevant to Ziegler-Natta catalysts
Author(s): Kjell-Arne Solli; Martin Ystenes; Piotr Sobota
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Paper Abstract

Esters of aromatic carboxylic acids and dicarboxylic acids show different effects when used as electron donors in the synthesis of milled MgCl2-supported Ziegler-Natta catalysts. Such Ziegler-Natta catalysts are synthesized by cogrinding anhydrous MgCl2 with the ester, then reacting the resulting support with TiCl4 followed by washing and drying. Alternatively, the catalyst may be synthesized by cogrinding MgCl2 with a TiCl4- aromatic ester complex. The catalyst is activated by a trialkyl aluminum in order to polymerize propene or other (alpha) -alkenes. Esters of the monoacids generally enhance the activity of the catalyst (relative to no ester), and the produced polypropene is also more isotactic. Esters of the diacids also enhance the isotacticity of the polymer produced somewhat, but the activity of the catalyst is lower.

Paper Details

Date Published: 1 March 1992
PDF: 2 pages
Proc. SPIE 1575, 8th Intl Conf on Fourier Transform Spectroscopy, (1 March 1992); doi: 10.1117/12.56328
Show Author Affiliations
Kjell-Arne Solli, Norwegian Institute of Technology (Norway)
Martin Ystenes, Norwegian Institute of Technology (Norway)
Piotr Sobota, Univ. of Wroclaw (Poland)

Published in SPIE Proceedings Vol. 1575:
8th Intl Conf on Fourier Transform Spectroscopy
Herbert Michael Heise; Ernst Heiner Korte; Heinz W. Siesler, Editor(s)

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