Harnessing Poly(ionic liquid)s for Sensing Applications

Abstract

The interest in poly(ionic liquid)s for sensing applications is derived from their strong interactions to a variety of analytes. By combining the desirable mechanical properties of polymers with the physical and chemical properties of ILs, new materials can be created. The tunable nature of both ionic liquids and polymers allows for incredible diversity, which is exemplified in their broad applicability. In this article we examine the new field of poly(ionic liquid) sensors by providing a detailed look at the current state-of-the-art sensing devices for solvents, gases, biomolecules, pH, and anions.

Ionic Liquid‐Based Stimuli‐Responsive Functional Materials

“…2− formed after a thermally induced dehydration process, the ILs exhibited reversible thermochromism behavior (transparent to blue or vice versa). [107,108] In addition, PIL-based thermo-responsive hydrogel has also offered a new perspective in electrochemical sensors, [33,112] catalysis, [113,114] protein separation, [115] simultaneous extraction, [116] actuators, [117,118] and as a surfactant or media for material synthesis. [119,120] Thermoresponsive ILs have much potential for smart materials applications.…”

Comparison of poly(ethylene glycol)-based networks obtained by cationic ring opening polymerization of neutral and 1,2,3-triazolium diepoxy monomers

“…Numerous reports have already demonstrated the potential of PILs in applications including catalysis, 21,22 dye-sensitized solar cells, 23 electrochromic devices, 24,25 gas separation membranes, 26,27 antimicrobial surfaces, 28 sensors and actuators, 29,30 electrolyte-gated transistors, 31 fuel cells, 32 as well as devices for energy storage such as batteries or super-capacitors. [33][34][35][36] Most of these applications rely on PILs having enhanced ion conducting properties generally in the form of highly viscous liquids.…”

Charge transport and glassy dynamics in polymeric ionic liquids as reflected by their inter- and intramolecular interactions

“…Polymeric ionic liquids (PILs) have been developed with the primary intention to establish a novel class of potential electrolyte materials for multifold applications, such as power-storage devices or CO 2 absorption appliances. [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17] With the evolution of these modern materials Hiroyuki Ohno and coworkers pioneered the strategy of incorporating outstanding properties of ILs (e.g. wide electrochemical and thermal window, negligible vapour pressure and non-flammability; but foremost high ionic conductivity) into mechanically stable polymeric systems by polymerization.…”