High ionic exchange capacity polyphenylsulfone (SPPSU) and polyethersulfone (SPES) cross-linked by annealing treatment: Thermal stability, hydration level and mechanical properties

• Published in: Journal of membrane science Vol. 354; no. 1; pp. 134 - 141
• Main Authors: Di Vona, M.L., Sgreccia, E., Tamilvanan, M., Khadhraoui, M., Chassigneux, C., Knauth, P.
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 15.05.2010
• Subjects: Aromatic polymer; PEM fuel cells; Polymer electrolyte; Swelling; Water uptake; Water uptake; Polymer electrolyte; PEM fuel cells; Swelling; Aromatic polymer

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 sulfonated polyphenylsulfone (SPPSU) in terms...