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Bredereck's Reagent Revisited: Latent Anionic Ring‐Opening Polymerization and Transesterification Reactions
Author(s) -
Csihony Szilárd,
Beaudette Tristan T.,
Sentman Alan C.,
Nyce Gregory W.,
Waymouth Robert M.,
Hedrick James L.
Publication year - 2004
Publication title -
advanced synthesis and catalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.541
H-Index - 155
eISSN - 1615-4169
pISSN - 1615-4150
DOI - 10.1002/adsc.200404097
Subject(s) - chemistry , reagent , polymerization , ring opening polymerization , polymer chemistry , heterolysis , anionic addition polymerization , transesterification , living anionic polymerization , lactide , chain transfer , organic chemistry , radical polymerization , catalysis , polymer
Abstract The ring‐opening polymerization of lactide with commercially available Bredereck‐type reagents in the presence or absence of alcohol initiators was carried out affording polylactide with controlled molecular weight and narrow polydispersities. An anionic mechanism involving heterolytic cleavage to alkoxides is proposed, where these reagents function as latent anionic initiators for the ring‐opening polymerization of lactide.