Proton-Conducting Cross-Linked Sulfonated Aromatic Polymers for Fuel Cells Application

MRS Online Proceedings Library volume 1384, Article number: 11 (2011) Cite this article

Abstract

Thermal stability, hydration and mechanical properties of thermally cross-linked Sulfonated Aromatic Polymers (SAP) with high ionic exchange capacity (IEC) were measured and compared to untreated samples. The formation of cross-linking greatly stabilizes SAP in terms of thermal, mechanical, and hydrolytic degradation: they can resist in water even at a temperature of 145 °C with improved mechanical properties. Acid-base titration and FTIR spectra consistently indicate that SAP microstructure stabilization is related to cross-linking of the polymer chains by SO2 bridges, which is promoted by temperature.

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Affiliations

  1. University of Roma Tor Vergata, Dip. Scienze Tecnologie Chimiche, 00133, Roma, Italy

    B. Maranesi, L. Pasquini & M.L. Di Vona

  2. Laboratoire Chimie Provence, Aix-Marseille Univ, Centre St Jérôme, 13397, Marseille, France

    M. Khadhraoui & P. Knauth

Authors
  1. B. Maranesi
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  2. L. Pasquini
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  3. M. Khadhraoui
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  4. P. Knauth
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  5. M.L. Di Vona
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Maranesi, B., Pasquini, L., Khadhraoui, M. et al. Proton-Conducting Cross-Linked Sulfonated Aromatic Polymers for Fuel Cells Application. MRS Online Proceedings Library 1384, 11 (2011). https://doi.org/10.1557/opl.2012.439

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