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


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
Issue number24
StatePublished - 11 Jun 2018


FundersFunder number
United States-Israel Binational Science Foundation
Israel Science Foundation650/14, 2015CTEBBA


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


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