The alkali degradation of LDPE-based radiation-grafted anion-exchange membranes studied using different e x situ methods

) when heated to 80 °C in a relative humidity RH = 95% atmosphere, a measurement frequently overlooked in favour of determining conductivities of RG-AEMs submerged in water (conductivities of submerged RG-AEMs can be suppressed due to excessive water contents and swelling).