초록 |
Novel ionic mixtures of LiTf2N and an imidazolium-based cation with phosphate anion containing ethylene oxide unit were prepared. According to the experimental results such as optical properties, small angle X-ray scattering (SAXS) and electrochemical analysis, the prepared ionic mixtures were self-assembled into the smectic-orderd structure. Interestingly, the ionic mixtures showed higher ionic conductivity than pure ionic liquid despite their solid-like viscoelasticity. Based on the experimental results, it could be suggested that the smetic ordered structure formed by Coulombic interactions between ion species in the mixtures and the ionic transport could be enhanced by the structure. |