Issue 9, 2016

Nanostructured proton-conducting membranes based on polymerizable zwitterionic ionic liquid microemulsions

Abstract

Ionic liquid (IL)-microemulsions with a polymerizable zwitterionic IL as the polar core were successfully fabricated for the first time using a room temperature IL: 1-(3-sulfopropyl)-3-ethenyl-imidazolium methanesulfonate ([VIPS][MSA]), an anionic surfactant: 4-dodecyl benzenesulfonic acid and styrene. The IL-microemulsion phase diagram was determined. Nanostructured proton-conducting membranes were obtained using an in situ photopolymerization of the IL-microemulsion in different subregions. The Film-Bi obtained using a bicontinuous microemulsion exhibits a higher conductivity and lower activation energy than Film-O/IL or Film-IL/O. The macroscopically interconnected polar zwitterionic IL channels formed in bicontinuous microemulsions can work as proton pathways and supply more hopping sites for proton transportation. This simple and effective method provides a versatile format to prepare IL-based proton conductors.

Graphical abstract: Nanostructured proton-conducting membranes based on polymerizable zwitterionic ionic liquid microemulsions

Supplementary files

Article information

Article type
Paper
Submitted
23 Apr 2016
Accepted
05 Jul 2016
First published
06 Jul 2016

New J. Chem., 2016,40, 7580-7586

Nanostructured proton-conducting membranes based on polymerizable zwitterionic ionic liquid microemulsions

F. Lu, X. Gao, P. Sun and L. Zheng, New J. Chem., 2016, 40, 7580 DOI: 10.1039/C6NJ01284A

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