Polyoxadiazole (POD) based membranes were synthesized and tested for electr
ical conductivity both in as-prepared and doped with H3PO4 forms. Being pre
pared by the phase inversion method, POD membranes contained a developed ma
cropore system, which however can be modified by mechanical compression. It
was found that compression improves the membrane strength and flexibility.
The proton conductivity of H3PO4 doped POD membranes is quite high, reachi
ng that of Nafion.