The past decade has witnessed considerable efforts of scientists in addressing challenges in the fields of energy, sustainable development, clean water and healthy life, and tremendous materials with specific features and advanced applications have been developed. Porous polyelectrolytes, as one of these powerful multifunctional materials platforms, have exhibited the unique strength in solving concerning topics, e.g., sustainability and environmental detection. As one subclass of porous polyelectrolyte, porous poly(ionic liquid)s (PILs) membranes have attracted increasing interest among polymer and materials field owing to their typical applications in sensing, actuation, carbon precursors, etc. However, the exploration of the limitation and interesting application scenarios of such porous materials are still appealing. Recently our group developed a novel poly(ionic liquid)s--poly(1,2,4-triazolium) PILs. It is proved that, owing to a possible carbene intermediate process, metal clusters down to the size of 1 nm can be stabilized by poly(1,2,4-triazolium)s in organic solutions. Inspired by this carbene chemistry, we designed and developed a 1,2,4-triazolium-based porous polycarbene-bearing membrane. This free-standing nanoporous polycarbene-bearing membrane can serves as an actuator sensor to detect acetic acid (CH3COOH) down to ~ 3.7 ppm in aqueous media, and could in-situ monitor an entire proton-involved chemical reaction event, indicative of their futuristic real-life application in reaction technology.

Porous polycarbene-bearing membrane actuator for ultrasensitive weak-acid detection and real-time chemical reaction monitoring

256th National Meeting (2018)

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