[(salen)Al]-mediated, controlled and stereoselective ring-opening polymerization of lactide in solution and without solvent: synthesis of highly isotactic polylactide stereocopolymers from racemic D,L-lactide

Zhiyuan Zhong, Pieter J. Dijkstra, Jan Feijen

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Abstract

Easily accessible [(salen)(iPrO)Al] exerts excellent molecular-weight and stereochemical control in lactide polymerization either in solution or in the absence of solvent. The R,R initiator shows a marked preference for L-lactide over D-lactide. Stereoblock copolylactides with high melting points can be prepared directly from d,l-lactides by using a racemic initiator.
Original languageUndefined
Pages (from-to)4510-4513
JournalAngewandte Chemie (international edition)
Volume41
Issue number23
DOIs
Publication statusPublished - 2002

Keywords

  • Ring-opening polymerization
  • Aluminum
  • Polymers
  • IR-71839
  • stereoselectivity
  • METIS-210925

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