Characterization of proton-conducting organic-inorganic polymeric materials by ASAXS

Luís A.S.De A. Prado*, G. Goerigk, M. L. Ponce, V. M. Garamus, H. Wittich, R. Willumeit, K. Schulte, Suzana Nunes

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

7 Scopus citations


The distribution of ZrO2 and phosphotungstic acid (PTA) in a matrix of sulfonated polyether ketone was investigated by anomalous small-angle X-ray scattering (ASAXS). Scattering curves were obtained using X-ray energies near the Zr and W absorption edges, allowing the independent analysis of the distribution of ZrO2 and PTA in the sample. The interaction between both inorganic components improved their dispersion considerably when compared with films containing just one of the additives. The synergism was correlated to previous investigations concerning proton conductivity and permeability of the membranes developed for direct methanol fuel cell.

Original languageEnglish (US)
Pages (from-to)2981-2992
Number of pages12
JournalJournal of Polymer Science, Part B: Polymer Physics
Issue number21
StatePublished - Nov 1 2005


  • Anomalous small-angle X-ray scattering
  • Organic-inorganic hybrid materials
  • Proton-conducting membranes

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Polymers and Plastics
  • Materials Chemistry


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