Benzylbiphenyl-regulated poly(aromatic ethylimidazole)s toward high-performance high temperature proton exchange membranes in fuel cells.
The development of high temperature proton exchange membranes (HT-PEMs) with simultaneously enhanced proton transport and mechanical robustness remains a major challenge for HT-PEM fuel cells. Herein, we report a molecular backbone engineering strategy based on the incorporation of 4-benzylbiphenyl (BBP) units into pol...