Dynamic Ion Gels from the Complex Coacervation of Oppositely Charged Poly(ionic liquid)s.

ABSTRACT: A cationic poly(ionic liquid) (PIL) with pendent butyl imidazolium cations and free bis(trifluoromethylsulfonyl)imide (TFSI) anions and an anionic PIL with pendent TFSI anions and free 1-butyl-3-methylimidazolium cations are synthesized by postpolymerization chemical modification and reversible addition-fragmentation chain-transfer radical copolymerization, respectively. Upon mixing solutions of these two PILs in acetone with stoichiometric amounts of ion pairs, ionic exchanges induce coacervation and, after solvent evaporation, lead to the formation of a dynamic ion gel (DIG) and the concomitant release of free [1-methyl-3-butyl imidazolium]TFSI ionic liquid (IL). A comparison of thermal (T_g), ion conducting (σ_DC), and viscoelastic (elastic moduli (G'))

SUBMITTER: Alaa Eddine M 

PROVIDER: S-EPMC11340024 | biostudies-literature | 2024 Aug

REPOSITORIES: biostudies-literature