SEARCH Articles Figures Tables Ionomer perfluorosulfonic acid Ionomers, perfluorosulfonic acid Perfluorosulfonate ionomers Perfluorosulfonates Perfluorosulfonic acid ionomer membranes Perfluorosulfonic acid ionomer structure Perfluorosulfonic acid ionomer transport properties Perfluorosulfonic acid ionomers (PFSIs Typical Functional Monomer for Perfluorosulfonic Acid Ionomer