Abstract
Abstract Measurements were made of field desorption mass spectra of normal and deuterated styrene oligomers synthesized in various alkylbenzenes. Several series of molecular ion peaks are observed in both the spectra. From a comparison between them we have identified oligomers’ end groups and derived formation mechanisms for individual molecular species. It has been clarified that molecular species independent of solvents are produced through chain transfer of propagating radicals to styrene dimers. Analysis for the polymerization mechanism of styrene as well as characterization of polymer molecules has been successfully performed by field desorption mass spectrometry.
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