Phosphonation of aryloxyphosphazenes

Harry R. Allcock, Michael A. Hofmann, Richard M. Wood

Research output: Contribution to journalArticlepeer-review

47 Scopus citations

Abstract

Two methods for the addition of pendent dialkyl phosphonate units onto aryloxyphosphazenes, at both the polymeric and cyclic trimer levels, are described. Sodium organophosphates or halogenated organophosphates were used as the phosphonating agents and were allowed to react with bromomethylene- or lithio-functionalized aryloxyphosphazenes, respectively. Phosphonation of bromomethylene-phenoxy side groups proceeded with ∼100% conversion, while phosphonation via lithiophenoxy intermediates yielded 80-85% conversion. The presence of a direct phosphorus-carbon bond in all products was confirmed by 13C NMR. Well-defined, cyclic trimers and polymers were obtained via both methods.

Original languageEnglish (US)
Pages (from-to)6915-6921
Number of pages7
JournalMacromolecules
Volume34
Issue number20
DOIs
StatePublished - Sep 25 2001

All Science Journal Classification (ASJC) codes

  • Organic Chemistry
  • Polymers and Plastics
  • Inorganic Chemistry
  • Materials Chemistry

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