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Andreas Sauer, Jean-Charles Buffet, Thomas P. Spaniol, Haruki Nagae, Prof. Kazushi Mashima and Prof. Jun Okuda Switching the Lactide Polymerization Activity of a Cerium Complex by Redox Reactions ChemCatChem 5

Version of Record online: 20 DEC 2012 | DOI: 10.1002/cctc.201200705

Thumbnail image of graphical abstract

The old switcheroo! The ring-opening polymerization activity towards meso-lactide significantly differs when cerium complexes with two bis(phenolate) ligands (OSSO type) change their oxidation state from +4 to +3. This switch can be performed in situ by chemical reduction or oxidation of the catalyst. The redox switching is possible up to three times in a row. PLA=polylactide.

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