Concerning the ring-opening polymerization of lactide and cyclic esters by coordination metal catalysts

A summary of the reactions involved in the ring-opening polymerization (ROP) of lactide (LA) to give polylactides (PLAs) is presented along with competing reactions. Particular attention is given to the stereoselective polymerization of -LA to give heterotactic PLA and -LA to give syndiotactic PLA b...

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Bibliographic Details
Published inPure and applied chemistry Vol. 82; no. 8; pp. 1647 - 1662
Main Author Chisholm, Malcolm H.
Format Journal Article
LanguageEnglish
Published Berlin De Gruyter 19.06.2010
Walter de Gruyter GmbH
Subjects
Aluminum
biodegradability
Catalysis
Catalysts
cyclic esters
Esters
metal–alkoxides
polyesters
Polylactic acid
Polymerization
Ring opening polymerization
Stereoselectivity
Syndiotacticity
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Summary:A summary of the reactions involved in the ring-opening polymerization (ROP) of lactide (LA) to give polylactides (PLAs) is presented along with competing reactions. Particular attention is given to the stereoselective polymerization of -LA to give heterotactic PLA and -LA to give syndiotactic PLA by aluminum Schiff-based catalysts and to the development of highly active group 2 metal single-site catalysts. Melt or solvent-free polymerization is also described along with reactions that lead exclusively to cyclic-polylactides.
ISSN:0033-4545
1365-3075
DOI:10.1351/PAC-CON-09-09-24