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Research Progress in Frontiers of Poly(Ionic Liquid)s: A Review

ABSTRACT Polymeric ionic liquids or poly(ionic liquid)s combine unique properties of ionic liquids with macromolecular characteristics. One of the spotlights of review was to identify potential areas of poly(ionic liquid)s. Due to unique combination of polymer and counterions, poly(ionic liquid)s possess tunable properties to be employed in range of advanced applications. Poly(ionic liquid)s composites have claimed relevance in energy storage/production and catalysis. In biosensors, poly(ionic liquid)s were employed to fabricate enzyme electrodes. Moreover, stimuli-responsive copolymers were used to form multi-responsive poly(ionic liquid)s. Separation membranes have been reported for gas separation/storage/transport. A significant use of poly(ionic liquid)s was found as solid-state electrolyte. In fuel cell, poly(ionic liquid)s-based electrolyte membranes were employed. GRAPHICAL ABSTRACT