Investigations of conductivity in FEP-based radiation-grafted alkaline anion-exchange membranes

Novel electrolyte membranes and non-Pt catalysts for low temperature fuel cells

“…The ion exchange capacities (IEC) of the AAEMs are determined using a back titration method as described in [10]. The OH --form AAEMs were submerged in hydrochloric acid standard for 24 h. The solution was then titrated with potassium hydroxide standard.…”

Investigations of the ex situ ionic conductivities at 30 °C of metal-cation-free quaternary ammonium alkaline anion-exchange membranes in static atmospheres of different relative humidities

“…The synthetic protocol for radiation-grafted AAEMs has been described in detail in reference 1 where m g is the mass of grafted sample and m i is the initial 100 mass of the irradiated films. These intermediate membranes were subsequently submerged in aqueous trimethylamine (Acros, 50% by mass) for 4 h to yield the desired quaternary ammonium exchange sites.…”

Reduction of the monomer quantities required for the preparation of radiation-grafted alkaline anion-exchange membranes

“…The ion exchange capacities (IEC) of the functionalized AAEMs were measured using the back titration method previously reported [32]. ) were calculated using Eqn. )…”