Title

Aromatic-Aliphatic Block Copolyesters Based on AA/BB Polymers and Poly(lactic) Acid

Document Type

Article

Publication Date

9-23-2006

Department

Polymers and High Performance Materials

Abstract

Aromatic/aliphatic poly[L-lactide-b-(ethyleneoxyethylene terephthalate-co-adipate)-b-L-lactide] triblock copolymers were synthesized and characterized. Hydroxy-telechelic poly(ethyleneoxyethylene terephthalate-co-adipate) (PEOETA) was first prepared via polycondensation and then utilized as an initiator for the ring opening polymerization (ROP) of L-lactide (LLA) in the presence of stannous octanoate (Sn(Oct)2). Formation of the block copolymer was confirmed by 1H NMR spectroscopy, GPC, and AFM. The polymerization rate induced by the PEOETA macroinitiator was comparable to that of a small molecule initiator.

Publication Title

ACS Symposium Series

Volume

939

First Page

234

Last Page

247

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