The Role of Solvent Ligated Metal Complexes Associated with Weakly Coordinating Counteranions (WCAs) in Isobutylene Polymerization |
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| Authors: | Hui Yee Yeong Brigitte Voit Yang Li Fritz E Kühn Narayanan Radhakrishnan |
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| Institution: | 1. Leibniz-Institut für Polymerforschung Dresden, Dresden, Germany;2. Molekulare Katalyse, Fakultät für Chemie der Technischen Universität München, Munich, Germany;3. Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853-1301 |
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| Abstract: | Summary: Polyisobutylene is an industrially important polymer which is conventionally prepared by polymerization at temperatures below 0 °C. The application of solvent ligated metal complexes associated with weakly coordinating counteranions (WCAs), however, allows the room temperature (30 °C) polymerization of isobutylene resulting in highly reactive polyisobutylene (HR-PIB) containing a high content of terminal double bonds. Recently described complexes include manganese (II), copper(II), molybdenum(III) and zink(II) complexes which were coordinated octahedrally with the boron and alumina based WCAs, each with its own advantages and traits. |
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| Keywords: | isobutylene polymerization transition metal complexes |
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