2014•ACS Macro LettersOpen access

Zinc-Catalyzed Highly Isoselective Ring Opening Polymerization of rac -Lactide

Srinivas Abbina, Guodong Du

Abstract

Abstract A family of chiral zinc amido-oxazolinate complexes are shown to be highly active and isoselective initiators for the ring-opening polymerization (ROP) of rac-lactide, yielding isotactic stereoblock polylactides (PLA) with Pm up to 0.91. This represents the highest isoselectivity observed with zinc-based catalysts for ROP of rac-lactide.

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Key concepts: Lactide, Zinc, Polymerization, Tacticity, Ring-opening polymerization, Catalysis, Polymer chemistry, Materials science