Crosslinking of comb-shaped polymer anion exchange membranes via thiol–ene click chemistry

To produce anion conductive and durable polymer electrolytes for alkaline fuel cell applications, a series of cross-linked quaternary ammonium functionalized poly(2,6-dimethyl-1,4-phenylene oxide)s with mass-based ion exchange capacities (IEC) ranging from 1.80 to 2.55 mmol g ⁻¹ were synthesized via thiol–ene click chemistry.