| 초록 |
Recently, polymerized ionic liquids (PILs), with an ionic liquid moiety in each repeating unit, have stirred great interest in the fields of polymer chemistry, physics and materials science. Since PILs are single-ion conductors that are potentially useful for advanced energy storage, energy conversion, and electromechanical transduction devices, it is of great interest to understand structure-property relations. Here, we synthesize PILs with imidazolium cations covalently attached to the polymer chain with a variety of side (or main) chains and various IL counterions. The effect of the glass transition temperature, ionic conductivity, and dielectric constant on molecular structure was investigated using differential scanning calorimetry (DSC) and dielectric relaxation spectroscopy (DRS), along with a morphological study from X-ray scattering. Understanding the structure-property relationship provides useful insights regarding optimal design of PILs for facile ion transport. |
