Combining hard and soft donors in early-transition-metal olefin polymerization catalysts |
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| Authors: | Long Richard J Gibson Vernon C White Andrew J P Williams David J |
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| Affiliation: | Department of Chemistry, Imperial College London, Exhibition Road, London SW7 2AZ, U.K. |
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| Abstract: | ![]()
Bis(phosphanylphenoxide) complexes of the group 4 metals, upon activation by methylaluminoxane, are highly active for ethylene and propylene polymerization; a zirconium derivative possesses one of the highest propylene polymerization activities found to date for a nonmetallocene system. |
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