Redox control of a polymerization catalyst by changing the oxidation state of the metal center

Erin M. Broderick; Neng Guo; Tianpin Wu; Carola S. Vogel; Cuiling Xu; Jörg Sutter; Jeffrey T. Miller; Karsten Meyer; Thibault Cantat; Paula L. Diaconescu

doi:10.1039/C1CC13117F

Redox control of a polymerization catalyst by changing the oxidation state of the metal center†

Erin M. Broderick,^a Neng Guo,^b Tianpin Wu,^b Carola S. Vogel,^c Cuiling Xu,^d Jörg Sutter,^c Jeffrey T. Miller,^b Karsten Meyer,^c Thibault Cantat*^e and Paula L. Diaconescu*^a

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* Corresponding authors

^a Department of Chemistry & Biochemistry, University of California, Los Angeles, California 90095, USA
E-mail: pld@chem.ucla.edu

^b CSE Division, Argonne National Laboratory, Argonne, Illinois 60439, USA

^c Department of Chemistry and Pharmacy, Friedrich-Alexander-University Erlangen-Nuremberg, 91058 Erlangen, Germany

^d University of British Columbia, Vancouver, V6T1Z1 Canada

^e CEA, IRAMIS, SIS2M, CNRS UMR 3299 91191 Gif-sur-Yvette, France
E-mail: thibault.cantat@cea.fr

Abstract

The activity of cerium alkoxide complexes supported by a Schiff base ligand was controlled using redox reagents during the ring-opening polymerization of L-lactide. The rate of L-lactide polymerization was modified by switching in situ between the cerium(III) and cerium(IV) species.

Chemical Communications

Redox control of a polymerization catalyst by changing the oxidation state of the metal center†

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Redox control of a polymerization catalyst by changing the oxidation state of the metal center

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