Partially fluorinated poly(arylene–alkane)s containing cobaltocenium for alkaline-stable anion exchange membranes.

Alkali-resistant metal-based cationic polyelectrolytes are designed as anion exchange membranes. After grafting aminocobaltocene hexafluorophosphates onto partially fluorinated ether-free poly(arylene–alkane)s via a simple nucleophilic substitution reaction, the membrane exhibits excellent chemical, thermal and mechanical stability, high hydroxide conductivity, as well as durability of single cells for 400 h. [ABSTRACT FROM AUTHOR]