End Capping Ring-Opening Olefin Metathesis Polymerization Polymers with Vinyl Lactones
Citations Over TimeTop 10% of 2008 papers
Abstract
The selective placement of a functional group at the chain end of a ring-opening metathesis polymer using ruthenium carbene initiators has been a significant limitation. Here we demonstrate a highly effective and facile end-capping technique for ROMP with living ruthenium carbene chain ends using single-turnover olefin metathesis substrates. Vinylene carbonate and 3H-furanone are introduced as functionalization and termination agents for the ruthenium-initiated ring-opening metathesis polymerization. This leads directly to the formation of functional polymer end groups without further chemical transformation steps. Aldehyde and carboxylic acid end groups can be introduced by this new method which involves the decomposition of acyl carbenes to ruthenium carbides. The high degrees of chain-end functionality obtained are supported by (1)H NMR spectroscopy, MALDI-ToF mass spectrometry, and end-group derivatization.
Related Papers
- → Alkene Metathesis – A Tool for the Synthesis of Conjugated Polymers(2012)45 cited
- → In situ generation of highly active olefin metathesis initiators(2006)36 cited
- → Formation and degradation of 1,4‐polybutadiene via metathesis: new results concerning cyclic oligomers(1995)26 cited
- → Ring-Opening Metathesis Polymerization (ROMP) Using Maleic Anhydride-Based Monomers(2016)1 cited
- Controlled Ring Opening Metathesis Polymerization (ROMP) Using pH-Responsive, Hexacoordinate Ruthenium-Based Olefin Metathesis Catalysts(2010)