Journal
RSC ADVANCES
Volume 5, Issue 78, Pages 63732-63737Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5ra10830f
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Funding
- National Basic Research Program [2013CB834505]
- Shandong Provincial Natural Science Foundation, China [ZR2012BZ001]
- Specialized Research Fund for the Doctoral Program of Higher Education of China [20120131130003]
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In the present study, we synthesized a series of ionic liquids by mixing amphiphilic imidazolium-type zwitterions with sulfonic acids containing different substituent groups. Nanostructured proton conductors having hexagonal and cubic structures were constructed by the self-assembly of these zwitterionic ionic liquids. These nanostructured proton conductors exhibited an assembled-structure dependent proton conduction behavior. The introduction of highly ordered liquid crystal structures efficiently improved ionic conductivity, suggesting the induction of proton conduction through a hopping mechanism. Temperature-responsive ionic conductivity behavior based on phase transition within the self-assembled liquid crystal structures was also observed.
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