Several high molecular weight poly(alkylene phosphorothioate)s were synthesized by reacting poly(H-phosphonate)s with sulfur. The molecular weight of the resulting polymers are similar to the respective starting poly(alkylene H-phosphonate)s indicating that during sulfurization process no chain degradation occurred. The structure of poly(alkylene phosphorothioate)s was confirmed by the analysis of 1H, 13C and 31P NMR spectra.
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