Characterization of porous structure through the dynamical properties of ions confined in sulfonated polyimide ionomers filmsA.-L. Rollet, J.-F. Blachot, A. Delville, O. Diat, A. Guillermo, P. Porion, L. Rubatat and G. GebelEur. Phys. J. E, 12 (2003) 131-134DOI: https://doi.org/10.1140/epjed/e2003-01-030-4