Advanced Materials

Cover image for Vol. 27 Issue 33

May 27, 2002

A polypyrrole-based cation exchange membrane...

A cation exchange membrane formed via the polymerization of a cobaltabisdicarbollide unit with pyrrole is presented. The cobalt doping agent is covalently bound directly to the pyrrole unit; no supporting electrolyte is necessary. An improved overoxidation resistance over the non-covalently linked counterpart is reported. This new material is an excellent candidate for selective ion exchange resins controlled by an electrochemical potential (F. Teixidor et al., Adv. Mater. 2002, 14, 826-829).

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