Phosphorylation of phosphazenes and its effects on thermal properties and fire retardant behavior

Harry R. Allcock, Jonathan P. Taylor

Research output: Contribution to journalArticle

44 Scopus citations

Abstract

Methods for the incorporation of phosphate and phosphonate units into the side groups of phosphazenes, at both the high polymeric and cyclic trimer levels, are described and evaluated. Halogenated organophosphates were used as the phosphorylating agents and were allowed to react with hydroxyl- or lithio-functionalized phosphazenes. Well-defined phosphorylated cyclic trimers were synthesized from the hydroxyl-functionalized precursors, and these were examined as flame-retardant additives to polystyrene. The thermal stabilities of the high polymers made by this route were analyzed by TGA.

Original languageEnglish (US)
Pages (from-to)1177-1189
Number of pages13
JournalPolymer Engineering and Science
Volume40
Issue number5
DOIs
StatePublished - Jan 1 2000

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Polymers and Plastics
  • Materials Chemistry

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