Polystyrene-Supported 2-Arylindenyl Zirconocene Catalysts for Propylene Polymerization |
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| Authors: | Stephen C. Diehl Robert M. Waymouth |
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| Affiliation: | Department of Chemistry, Stanford University, Stanford 94305, California, USA |
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| Abstract: | Mono- and bis 2-arylindenyl zirconocene/methylalumoxane (MAO) catalysts are prepared on a crosslinked polystyrene resin using gel-phase organic reactions. The 2-arylindene ligands are bonded to the polystyrene backbone through a disiloxane linkage, and the zirconocene is prepared directly on the support in high yield. These supported 2-arylindenylzirconocenes in the presence of MAO show high activity and yield polypropylenes with microstructures similar to those produced by the analogous solution-phase catalysts. |
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