2025 Volume 25 Issue 1 Pages 5-12
Quaternary-ammonium-salt-type amphiphilic ionic liquids with novel structures and functions were synthesized, and the physicochemical characteristics, the adsorption and aggregation properties in aqueous solution, and the surface and bulk properties of these amphiphilic ionic liquids were investigated. Furthermore, the bulk properties of these amphiphilic ionic liquids were investigated by using wide-angle X-ray scattering and cryo-transmission electron microscopy. It was revealed that these amphiphilic ionic liquids formed layer structures in bulk, and the spacing could be changed by the alkyl chain length and the length and structure of spacer of amphiphilic ionic liquids and the structures of added surfactants.