Molecular Brush Having Molten Salt Domain for Fast Ion Conduction

Poly(ethylene oxide) (PEO) derivatives having both vinyl group and imidazolium salt structure on their ends were prepared and polymerized. When molten salt domain was provided by changing chloride anion with bis(trifluoromethanesulfonylimide) anion, excellent ionic conductivity (1.20 × 10^-4 Scm^-1 at 30 °C) was observed in spite of rubber-like properties.