Dual-Cationic Poly(ionic liquid)s Carrying 1,2,4-Triazolium and Imidazolium Moieties: Synthesis and Formation of a Single-Component Porous Membrane

Both imidazolium and 1,2,4-triazolium cations are important functional moieties widely incorporated as building blocks in poly(ionic liquid)s (PILs). In a classical model, PIL usually contains either or its repeating unit. Herein, via exploiting the slight reactivity difference of alkyl bromide with imidazole 1,2,4-triazole at room temperature, we synthesized dual-cationic homopolymers carrying both same unit, that is, an asymmetrically dicationic We investigated their fundamental properties, for example, thermal stability solubility, well unique function forming supramolecular porous membranes water-initiated phase-separation cross-linking process. With such knowledge, identified water-based fabricate strategy toward air-stable from single-component PILs. This study will enrich design tools chemical structure library PILs expand application spectrum.