Journal
ELECTROCHIMICA ACTA
Volume 175, Issue -, Pages 55-61Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2014.12.140
Keywords
Ionomer; Ionic liquid; Polymerized ionic liquid; Dielectric constant; Glass transition temperature
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Funding
- U.S. Army Research Office under Ionic Liquids in Electro-Active Devices (ILEAD) MURI [W911NF-07-1-0452]
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The dependences of the glass transition temperature and the dielectric constant on molecular volume of the repeat unit for polymerized ionic liquids, the monomers they were polymerized from and simple ionic liquids, are reviewed and compared. The ionic conductivities of these materials and the frequencies at which ionic rearrangements occur are shown to be controlled by their glass transition temperatures. The ionic conductivity is proportional to the product of dielectric constant and ionic rearrangement frequency, with the proportionality constant determined by the molecular volume of the repeat unit. (C) 2014 Elsevier Ltd. All rights reserved.
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