Catalysts and methods for polymer synthesis
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United States of America Patent
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Feb 28, 2017
Grant Date -
Sep 22, 2016
app pub date -
Jun 2, 2016
filing date -
Nov 4, 2011
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Abstract
The present invention provides unimolecular metal complexes having increased activity in the copolymerization of carbon dioxide and epoxides. Also provided are methods of using such metal complexes in the synthesis of polymers. According to one aspect, the present invention provides metal complexes comprising an activating species with co-catalytic activity tethered to a multidentate ligand that is coordinated to the active metal center of the complex.
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