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Monocyclopentadienyl Titanium Catalyst

  • Conference paper
Metalorganic Catalysts for Synthesis and Polymerization

Abstract

Monocyclopentadienyl titanium complexes are active catalysts for syndiotactic polymerization of styrene. The activity is severely suppressed when the Cp ligand has a substituent with a Lewis basic heteroatom. The active species is a titanium cation generated by the usual cocatalyst. Electron paramagnetic resonance and polymerization studies of a series of monocyclopentadienyl titanium precursors with different propensity for reduction showed that both the tetravalent and trivalent Ti+ species are active, with the former having the greater activity than the latter. Very stable catalysts have been found as a result. In contrast, monocyclopentadienyl titanium complexes are poor for ethylene or propylene polymerization; but the activity is greatly improved with a coordinative substituent on the Cp ligand.

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Author information

Authors and Affiliations

  1. Amherst Polymer Technology, Inc. Department of Polymer Science and Engineering, Department of Chemistry, University of Massachusetts, 01003, Amherst, Massechusetts, USA

    James C. W. Chien & Marvin D. Rausch

Authors
  1. James C. W. Chien
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  2. Marvin D. Rausch
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Editor information

Editors and Affiliations

  1. Institute for Technical and Macromolecular Chemistry, University of Hamburg, Bundesstraße 45, D-20146, Hamburg, Germany

    Walter Kaminsky

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© 1999 Springer-Verlag Berlin Heidelberg

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Chien, J.C.W., Rausch, M.D. (1999). Monocyclopentadienyl Titanium Catalyst. In: Kaminsky, W. (eds) Metalorganic Catalysts for Synthesis and Polymerization. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-60178-1_40

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  • DOI: https://doi.org/10.1007/978-3-642-60178-1_40

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-642-64292-0

  • Online ISBN: 978-3-642-60178-1

  • eBook Packages: Springer Book Archive

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