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Polymerization of rac ‐Lactide Using Achiral Iron Complexes: Access to Thermally Stable Stereocomplexes
Author(s) -
Marin Paul,
Tschan Mathieu J.L.,
Isnard Florence,
Robert Carine,
Haquette Pierre,
Trivelli Xavier,
Chamoreau LiseMarie,
Guérineau Vincent,
del Rosal Iker,
Maron Laurent,
Venditto Vincenzo,
Thomas Christophe M.
Publication year - 2019
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201903224
Subject(s) - enantiopure drug , polymerization , lactide , enantiomer , polymer , limiting , catalysis , polymer chemistry , materials science , chemistry , chemical engineering , combinatorial chemistry , organic chemistry , enantioselective synthesis , mechanical engineering , engineering
Enantiopure poly(lactic acid) (PLA) can form stereocomplexes when enantiomeric PLA chains are mixed in equivalent amounts. Such materials provide interesting features that might be suitable for numerous applications. Despite several advantages, the main drawback of PLA is its narrow window of processing, thus limiting its use for industrial applications. Reported herein are achiral iron complexes, that are highly active, productive, and stereoselective under mild reaction conditions for the ring‐opening polymerization of lactide. The corresponding catalytic systems enable the production of stereoblock polymers with high molecular weights, allowing the formation of thermally stable and industrially relevant stereocomplexes.