Design of PEO-based ruthenium carbene for aqueous metathesis polymerization. Synthesis by the “macromonomer method” and application in the miniemulsion metathesis polymerization of norbornene
Abstract
Novel water-soluble ruthenium carbene complexes with finely tuned structure and properties in solution are reported. These ruthenium-based initiators were found to exhibit great catalytic activity in aqueous miniemulsion ring-opening metathesis polymerization of norbornene. Stable particles of polynorbornene could be generated in the 200–250 nm size range stabilized with a nonionic surfactant (polystyrene-b-poly(ethylene oxide)). © 2006 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 44: 2784–2793, 2006