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Highly Active, Productive, and Syndiospecific Yttrium Initiators for the Polymerization of Racemic β‐Butyrolactone
Author(s) -
Amgoune Abderramane,
Thomas Christophe M.,
Ilinca Simona,
Roisnel Thierry,
Carpentier JeanFrançois
Publication year - 2006
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200600058
Subject(s) - polymerization , yttrium , tacticity , ligand (biochemistry) , amine gas treating , chemistry , polymer chemistry , ring (chemistry) , organic chemistry , polymer , biochemistry , receptor , oxide
Alternate tacticities : The ring‐opening polymerization of rac ‐β‐butyrolactone ( rac ‐BBL) using a six‐coordinate yttrium complex bearing a dianionic amine‐bis(phenolate) ligand as initiator proceeds readily at room temperature to give the corresponding poly(3‐hydroxybutyrate) (PHB) with up to 94 % syndiotacticity and narrow molecular‐weight distributions (see scheme).