Poly(arylene alkylene)s with pendent benzyl-tethered ammonium cations for anion exchange membranes
Polymeric anion-exchange membranes (AEMs) with alkali-stable quaternary ammonium (QA) cations are essential components for the development of alkaline membrane fuel cells and water electrolyzers. Ionic loss by β-elimination reactions typically accelerates at low water contents, i.e., high alkali concentrations, which makes QA cations attached to polymer backbones via benzylic sites interesting alt