Alkylsulfonation of poly(aminophosphazenes)

E. H. Klingenberg, H. R. Allock, M. F. Welker

Research output: Contribution to journalConference articlepeer-review


We report the alkylsulfonation of high polymeric aminophosphazenes with 1,3-propane sulfone(1). The sulfonation reactions were first studied with the use of cyclotriphosphazenes as small molecule models. The techniques were then extended to the corresponding high polymers. A general synthetic approach to these reactions is illustrated. Alkysulfonation reactions occur with amino groups linked directly to the polymer backbone to yield polymers with low loadings of both zwitterion and sulfonic acid groups. Even these low loadings of the new groups dramatically changed the properties of the polymers, increasing the solubility in polar media and rendering the macromolecules susceptible to ionic crosslinking in the presence of divalent cations. Polymers with amino groups linked to the polymer chain by alkoxy spacer groups react with 1 under mild conditions to produce the alkylsulfonated derivatives. These polymeric sulfonic acids show typical characteristics of ionomers.

Original languageEnglish (US)
Pages (from-to)353-354
Number of pages2
JournalPolymeric Materials Science and Engineering, Proceedings of the ACS Division of Polymeric Materials Science and Engineering
StatePublished - Dec 1 1993
EventProceedings of the American Chemical Society Division of Polymeric Materials - Science and Engineering - Chicago, IL, USA
Duration: Jun 11 1993Jun 11 1993

All Science Journal Classification (ASJC) codes

  • Chemical Engineering (miscellaneous)
  • Polymers and Plastics


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