Conventional and Echo-Detected Time-Resolved ESR Studies on Photo-Polymerization

摘要

Conventional and spin-echo detected time-resolved ESR techniques were taken in the investigation of photo-polymerization process of vinyl monomers, initiated by the photo-excited TMDPO. For the ESR lineshape of the starting radicals, lineshape difference between the conventional and echo-detected spectra was not observed in the system where ethylvinylether or vinylacetate was used as monomer, while the obvious difference was observed in the system where methylmethacrylate or isoprene was used as monomer.