Redox control of group 4 metal ring-opening polymerization activity toward l -lactide and ε-caprolactone
- Author(s): Wang, X
- Thevenon, A
- Brosmer, JL
- Yu, I
- Khan, SI
- Mehrkhodavandi, P
- Diaconescu, PL
- et al.
Published Web Locationhttps://doi.org/10.1021/ja505883u
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. © 2014 American Chemical Society.
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