A process for preparing an ion-conducting membrane for fuel cells

A process for preparing an ion-conducting membrane, said method comprising: a) reacting a compound having the formula 1, with a polymer having the polymer segment 2: a copolymer having the polymer segment 2 and segment 3, the polymer to be formed: b) forming the copolymer having the polymer segment 2 and the polymer segment 3 to an ion-conducting membrane, in which: Z is a C YO, NH, S or ...