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Redox control of group 4 metal ring-opening polymerization activity toward L-lactide and ε-caprolactone.

  • Author(s): Wang, Xinke
  • Thevenon, Arnaud
  • Brosmer, Jonathan L
  • Yu, Insun
  • Khan, Saeed I
  • Mehrkhodavandi, Parisa
  • Diaconescu, Paula L
  • et al.

Published Web Location

https://doi.org/10.1021/ja505883u
Abstract

The activity of several group 4 metal alkoxide complexes supported by ferrocene-based ligands was controlled using redox reagents during the ring-opening polymerization of l-lactide and ε-caprolactone. Switching in situ between the oxidized and reduced forms of a metal complex resulted in a change in the corresponding rate of polymerization. Opposite behavior was observed for each monomer used. One-pot copolymerization of the two monomers to give block copolymers was also achieved.

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