Redox Control of Group 4 Metal Ring-Opening Polymerization Activity toward l-Lactide and 蔚-Caprolactone
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- 作者：Xinke Wang ; Arnaud Thevenon ; Jonathan L. Brosmer ; Insun Yu ; Saeed I. Khan ; Parisa Mehrkhodavandi ; Paula L. Diaconescu
- 刊名：Journal of the American Chemical Society
- 出版年：2014
- 出版时间：August 13, 2014
- 年：2014
- 卷：136
- 期：32
- 页码：11264-11267
- 全文大小：266K
- ISSN：1520-5126
文摘
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 lass="smallcaps">l-lactide and 蔚-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.