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

Damon J. Gilmour, Ruth L. Webster, Mitchell R. Perry, Laurel L. Schafer

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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 ε-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.
Original languageEnglish
Pages (from-to)12411-12419
Number of pages9
JournalDalton Transactions
Volume44
Issue number27
Early online date13 May 2015
DOIs
Publication statusPublished - 21 Jul 2015

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