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

• Published in: Journal of polymer science. Part B, Polymer physics Vol. 43; no. 21; pp. 2981 - 2992
• Main Authors: Prado, Luís A. S. de A., Goerigk, G., Ponce, M. L., Garamus, V. M., Wittich, H., Willumeit, R., Schulte, K., Nunes, S. P.
• Format: Journal Article
• Language: English
• Published: Hoboken Wiley Subscription Services, Inc., A Wiley Company 01.11.2005; Wiley
• Subjects: anomalous small-angle X-ray scattering; Applied sciences; Exact sciences and technology; Exchange resins and membranes; Forms of application and semi-finished materials; organic-inorganic hybrid materials; Polymer industry, paints, wood; proton-conducting membranes; Technology of polymers; Tungsten compound; Dispersion degree; Hybrid material; Zirconium IV Oxides; Polymer solid electrolyte; Ether copolymer; Small angle X ray scattering; Experimental study; Functional polymer; Ketone copolymer; Sulfonate copolymer; Heteropolyacid; Cation exchange membrane
• ISSN: 0887-6266; 1099-0488
• DOI: 10.1002/polb.20576

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. © 2005 Wiley Periodicals, Inc. J Polym Sci Part B: Polym Phys 43: 2981–2992, 2005