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Polyelectrolyte-in-ionic-liquid electrolytes

journal contribution
posted on 01.11.2003, 00:00 authored by C Tiyapiboonchaiya, Jenny PringleJenny Pringle, D MacFarlane, Maria ForsythMaria Forsyth, J Sun
Novel 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 physics

Volume

204

Issue

17

Pagination

2147 - 2154

Publisher

Wiley-VCH Verlag GmbH & Co. KGaA

Location

Weinheim, Germany

ISSN

1022-1352

eISSN

1521-3935

Language

eng

Publication classification

C1.1 Refereed article in a scholarly journal

Copyright notice

2003, WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim