Introduction of Stilbene Derivatives and Cinnamate Ester Derivatives at the ω-End Groups of Poly(Methyl Methacrylate) Prepared via RAFT Polymerization.

The capping of "living" poly(methyl methacrylate) (PMMA) and "living" polystyrene (PS), both prepared by the RAFT technique, with various olefins was screened using F-19-NMR spectroscopy. The capping of "living" PMMA with a labeled stilbene was as high as 63% and with certain cinnamate esters was essentially quantitative, but the capping of "living" polystyrene with all the olefins investigated was generally poor.