Block–Stereoblock Copolymers of Poly(ϵ-Caprolactone) and Poly(Lactic Acid)

Tomer Rosen, Israel Goldberg, Wanda Navarra, Vincenzo Venditto*, Moshe Kol

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

A magnesium complex of the type {ONNN}Mg-HMDS wherein {ONNN} is a sequential tetradentate monoanionic ligand is introduced. In the presence of an alcohol initiator this complex catalyzes the living and immortal homopolymerization of the lactide enantiomers and ϵ-caprolactone at room-temperature with exceptionally high activities, as well as the precise block copolymerization of these monomers in a one-pot synthesis by sequential monomer addition. Copolymers of unprecedented microstructures such as the PCL-b-PLLA-b-PDLA and PDLA-b-PLLA-b-PCL-b-PLLA-b-PDLA block–stereoblock microstructures that feature unique thermal properties are readily accessed.

Original languageEnglish
Pages (from-to)7191-7195
Number of pages5
JournalAngewandte Chemie - International Edition
Volume57
Issue number24
DOIs
StatePublished - 11 Jun 2018

Keywords

  • block copolymers
  • living polymerization
  • magnesium
  • poly(lactic acid)
  • poly(ϵ-caprolactone)

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