Redox Control within Single-Site Polymerization Catalysts

✍ Scribed by Gregson, Charlotte K. A.; Gibson, Vernon C.; Long, Nicholas J.; Marshall, Edward L.; Oxford, Phillip J.; White, Andrew J. P.

• Book ID: 120196966
• Publisher: American Chemical Society
• Year: 2006
• Tongue: English
• Weight: 95 KB
• Volume: 128
• Category: Article
• ISSN: 0002-7863
• DOI: 10.1021/ja061398n

✦ Synopsis

The activity of a single-site titanium-based lactide polymerization initiator supported by a ferrocenyl-derivatized salen ligand is shown to be modulated by a chemical redox switch; a substantially higher rate of propagation is found for the neutral catalyst compared to its oxidized dicationic ferrocenium counterpart.