Proton-conductive membranes of sulfonated polyphenylsulfone

A. Dyck, D. Fritsch, S. P. Nunes

Research output: Contribution to journalArticlepeer-review

81 Scopus citations


Polyphenylsulfone was sulfonated by two different methods: reaction with SO3 and reaction with (CH3)3SiSO3Cl. The products were characterized, and the advantages of both methods are discussed. Much more homogeneous products were obtained from the reaction with (CH3)3SiSO3Cl, along with better control of the sulfonation degree. An alternative method of membrane preparation led to an asymmetric structure, which allowed the combination of high mechanical stability and high proton conductance.

Original languageEnglish (US)
Pages (from-to)2820-2827
Number of pages8
JournalJournal of Applied Polymer Science
Issue number11
StatePublished - Dec 9 2002
Externally publishedYes


  • Functionalization of polymers
  • Membranes
  • Modification

ASJC Scopus subject areas

  • General Chemistry
  • Surfaces, Coatings and Films
  • Polymers and Plastics
  • Materials Chemistry


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