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Polyelectrolyte-in-ionic-liquid electrolytes
journal contribution
posted on 2003-11-01, 00:00 authored by C Tiyapiboonchaiya, Jenny PringleJenny Pringle, D MacFarlane, Maria ForsythMaria Forsyth, J SunNovel polymer electrolyte materials based on a polyelectrolyte-in-ionic-liquid principle are described. A combination of a lithium 2-acrylamido-2-methyl-1-propanesulfonic acid (AMPSLi) and N,N′-dimethylacrylamide (DMMA) are miscible with the ionic liquid, 1-ethyl-3-methylimidazolium dicyanamide (EMIDCA). EMIDCA has remarkably high conductivity (≥ 2 · 10−2 S · cm−1) at room temperature and acts as a good solvating medium for the polyelectrolyte. At compositions of AMPSLi less than or equal to 75 mol-% in the copolymer (P(AMPSLi-co-DMAA)), the polyelectrolytes in EMIDCA are homogeneous, flexible elastomeric gel materials at 10 − 15 wt.-% of total polyelectrolyte. Conductivities higher than 8 · 10−3 S · cm−1 at 30 °C have been achieved. The effects of the monomer composition, polyelectrolyte concentration, temperature and lithium concentration on the ionic conductivity have been studied using thermal and conductivity analysis, and pulsed field gradient nuclear magnetic resonance techniques.
History
Journal
Macromolecular chemistry and physicsVolume
204Issue
17Pagination
2147 - 2154Publisher
Wiley-VCH Verlag GmbH & Co. KGaALocation
Weinheim, GermanyPublisher DOI
ISSN
1022-1352eISSN
1521-3935Language
engPublication classification
C1.1 Refereed article in a scholarly journalCopyright notice
2003, WILEY-VCH Verlag GmbH & Co. KGaA, WeinheimUsage metrics
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