Alkaline fuel cells using anion conductive polymers offer several advantages, such as possible use of abundant metal electrocatalysts (Ni, Co, Ag, etc.) and better kinetics of the oxygen reduction reaction. The issues associated with alkaline fuel cells are lack of anion conductive polymers with high conductivity and durability.<br/>In this research, we report synthesis and properties of novel copolymers consisting of perfluoroalkylene and fluorenyl groups in the polymer backbones with pendant ammonium groups (QPAF-4). Lack of heteroatom linkages in the polymer backbones, and the ammonium groups tethered at the pendant alkyl groups contributred to the excellent alkaline stability of the membranes (Figure 1). Synthesis, structural analyses, anion conductivity, water uptake, and mechanical and chemical stabilities of the copolymer membranes will be discussed.

Anion conductive polymers consisting of perfluoroalkylene, fluorenyl, and pendant ammonium groups

255th National Meeting (2018)

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