Hydroxide Conducting Membranes with Quaternary Ammonium Cations Tethered to Poly(arylene alkylene)s via Flexible Phenylpropyl Spacers
Durable and high-performing anion exchange membranes (AEMs) are central components in alkaline water electrolyzers and fuel cells. Here, we have pursued a synthetic strategy where heteroatom-free polymer backbones are functionalized with alkali-stable dimethyl piperidinium (DMP) cations via flexible spacers. We achieved this design by synthesizing a trifluorobenzophenone monomer carrying a piperid