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Ion Gels by Self-Assembly of a Triblock Copolymer in an Ionic Liquid
Abstract
We report a new way of developing ion gels through the self-assembly of a triblock copolymer in a room-temperature ionic liquid. Transparent ion gels were achieved by gelation of a poly(styrene-block-ethylene oxide-block-styrene) (SOS) triblock copolymer in 1-butyl-3-methylimidazolium hexafluorophosphate ([BMIM][PF6]) with as low as 5 wt % SOS triblock copolymer. The gelation behavior, ionic conductivity, rheological properties, and microstructure of the ion gels were investigated. The ionic conductivity of the ion gels is only modestly affected by the triblock copolymer network. Its temperature dependence nearly tracks that of the bulk ionic liquid viscosity. The ion gels are thermally stable up to at least 100 degrees C and possess significant mechanical strength. The results presented here suggest that triblock copolymer gelation is a promising way to develop highly conductive ion gels and provides many advantages in terms of variety and processing.
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Cited by
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Self-citationIonic liquids as amphiphile self-assembly media
Greaves, T. L., & Drummond, C. J. (2008) · Chemical Society Reviews · doi:10.1039/b801395k · Cited by 532
Block copolymer electrolytes for rechargeable lithium batteries
Young, W., Kuan, W., & Epps (2014) · Journal of Polymer Science Part B: Polymer Physics · doi:10.1002/polb.23404 · Cited by 417
Cho, J. H., Lee, J., He, Y., Kim, B. S., Lodge, T. P., & Frisbie, C. D. (2008) · Advanced Materials · doi:10.1002/adma.200701069 · Cited by 377
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Metadata
- Authors
- He, Y., Boswell, P. G., Bühlmann, P., & Lodge, T. P.
- Venue
- The Journal of Physical Chemistry B
- Publisher
- American Chemical Society (ACS)
- Published
- 2006-12-01
- Volume
- 111
- Issue
- 18
- Pages
- 4645-4652
- ISSN
- 1520-5207 (ISSN-L)
- 1520-6106
- OpenAlex
- W2089866485
- Cited by
- 308
- References
- 0
- FWCI
- 3.96
- Type
- journal article
- Language
- en
- Open access
- closed
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- He, Y., Boswell, P. G., Bühlmann, P., & Lodge, T. P. (2007). Ion Gels by Self-Assembly of a Triblock Copolymer in an Ionic Liquid. The Journal of Physical Chemistry B. https://doi.org/10.1021/jp064574n
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