Université de Fribourg

Correlation between morphology, water uptake, and proton conductivity in radiation-grafted proton-exchange membranes

Balog, Sandor ; Gasser, Urs ; Mortensen, Kell ; Gubler, Lorenz ; Scherer, Guenther G. ; youcef, Hicham Ben

In: Macromolecular Chemistry and Physics, 2010, vol. 211, no. 6, p. 635-643

An SANS investigation of hydrated proton exchange membranes is presented. Our membranes were synthesized by radiation-induced grafting of ETFE with styrene in the presence of a crosslinker, followed by sulfonation of the styrene. The contrast variation method was used to understand the relationship between morphology, water uptake, and proton conductivity. The membranes are separated into two...