Phosphonitrilic Compounds. VI. High Molecular Weight Poly(alkoxy- and aryloxyphosphazenes)

H. R. Allcock, R. L. Kugel, K. J. Valan

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The synthesis and characterization of the first fully substituted, high molecular weight, uncross-linked poly-(organophosphazenes) is described. Polymers of structure (NPR2)n were prepared in which R was OCH3, OC2H5, OCH2CF3, and OC6H5, by nucleophilic replacement of chlorine in uncross-linked (NPCl2)n with alkoxide or aryloxide ions. Infrared, ultraviolet, nmr, glass transition, and X-ray diffraction data are considered in relation to previous structural interpretations of the polyphosphazene system. The marked depolymerization tendency and the nature of phosphorus-nitrogen bonding in these compounds are also discussed.

Original languageEnglish (US)
Pages (from-to)1709-1715
Number of pages7
JournalInorganic chemistry
Issue number10
StatePublished - Oct 1966

All Science Journal Classification (ASJC) codes

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry


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