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Titanium pyridonates for the homo- and copolymerization of rac-lactide and epsilon-caprolactone

TitleTitanium pyridonates for the homo- and copolymerization of rac-lactide and epsilon-caprolactone
Publication TypeJournal Article
Year of Publication2015
AuthorsGilmour, DJ, Webster, RL, Perry, MR, Schafer, LL
JournalDalton Transactions
Volume44
Pagination12411-12419
ISSN1477-9226
Abstract

A series of titanium pyridonate complexes have been synthesized under very mild reaction conditions from a common precursor, Ti(NMe2)(4). These complexes have been explored as initiators for the ring-opening polymerization of rac-lactide and epsilon-caprolactone and have proven to be competitive with leading titanium initiators. Furthermore, these complexes have been shown to be competent initiators for the synthesis of copolymers (CL-LA block copolymers and random copolymers). Metal complex reactivity trends in both homo- and copolymerization show that poly(lactic acid) is most susceptible to chain scission and transesterification.

DOI10.1039/c5dt01162k