Sulfonation of (Aryloxy)- and (Arylamino)phosphazenes: Small-Molecule Compounds, Polymers, and Surfaces

Harry R. Allcock, Richard J. Fitzpatrick, Lawrence Salvati

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103 Scopus citations


Sulfonation reactions have been developed that convert aryloxy or arylamino groups linked to phosphazenes to the arylsulfonic acid derivatives. The reactions were developed at three levels-first, with small-molecule phosphazene cyclic trimers; second, with phosphazene high polymers in the solution state; third, at the surfaces of solid polyphosphazenes. The reagents employed included concentrated H2SO4, fuming H2SO4, and ClSO3H. Molecular level products were studied by 31P, 13C, and 1H NMR spectroscopy, while the surface-reacted materials were examined by XPS, SEM, ATR-IR, contact angle, and optical microscopy. This chemistry is of broad utility for the preparation of hydrophilic and hydrogel surfaces on polymers and for the development of biocompatible or antibacterial materials.

Original languageEnglish (US)
Pages (from-to)1120-1132
Number of pages13
JournalChemistry of Materials
Issue number6
StatePublished - Nov 1 1991

All Science Journal Classification (ASJC) codes

  • General Chemistry
  • General Chemical Engineering
  • Materials Chemistry


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