Cover Image, Volume 49, Issue 18


original image

Polymerized ionic liquids (PILs) present an enticing opportunity for the development of polymeric “single-ion” conductors with potential applications in electrical energy storage and energy conversion devices such as batteries and fuel cells under a wide range of environmental conditions. The synthesis of well-defined PILs and correlations of their chemical structures with their thermal stabilities and ionic conductivities remain relatively obscure. On page On page 1287 of this issue, Mahesh Mahanthappa and co-workers describe the chemical attributes and single-anion conductivities of two homologous series of PILs under humidified and nearly anhydrous conditions. (Cover artwork by Ryan L. Weber, University of Wisconsin–Madison.)