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Switching the Lactide Polymerization Activity of a Cerium Complex by Redox Reactions
Author(s) -
Sauer Andreas,
Buffet JeanCharles,
Spaniol Thomas P.,
Nagae Haruki,
Mashima Kazushi,
Okuda Jun
Publication year - 2013
Publication title -
chemcatchem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.497
H-Index - 106
eISSN - 1867-3899
pISSN - 1867-3880
DOI - 10.1002/cctc.201200705
Subject(s) - cerium , redox , polymerization , lactide , oxidation state , ring opening polymerization , chemistry , oxidation reduction , catalysis , combinatorial chemistry , polymer chemistry , organic chemistry , polymer , biochemistry
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.