Self-organization of Protonated 2-heptadecylimidazole as an Effective Ion Conductive Matrix

抄録

2-Heptadecylimidazole (a) neutralized with a series of acids showed good thermal stability. The decomposition temperature of most salts exceeded 200 °C. Among these, a neutralized with HBF₄ showed enantiotropic liquid crystalline phase. Higher ionic conductivity and lower activation energy were found for the salt in the liquid crystalline phase. The a neutralized with HBF₄ was mixed with 11 mol% a to introduce the proton acceptor sites in the assembled a. The mixture showed a monotropic liquid crystalline phase. High ionic conductivity and low activation energy were also seen in the monotropic liquid crystalline phase.