Ionic conductivity of polymer gels deriving from alkali metal ionic liquids and negatively charged polyelectrolytes

Ogihara, Wataru, Sun, Jianzeng, Forsyth, Maria, MacFarlane, Douglas R., Yoshizawa, Masahiro and Ohno, Hiroyuki 2004, Ionic conductivity of polymer gels deriving from alkali metal ionic liquids and negatively charged polyelectrolytes, Electrochimica acta, vol. 49, no. 11, pp. 1797-1801.

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Title Ionic conductivity of polymer gels deriving from alkali metal ionic liquids and negatively charged polyelectrolytes
Author(s) Ogihara, Wataru
Sun, Jianzeng
Forsyth, Maria
MacFarlane, Douglas R.
Yoshizawa, Masahiro
Ohno, Hiroyuki
Journal name Electrochimica acta
Volume number 49
Issue number 11
Start page 1797
End page 1801
Publisher Elsevier Science Pub. Co.
Place of publication New York, N.Y.
Publication date 2004-04-30
ISSN 0013-4686
1873-3859
Keyword(s) ionic liquid
ionic conductivity
alkali metal ionic liquid
gel
polyelectrolyte
Summary We have prepared polymer gel electrolytes with alkali metal ionic liquids (AMILs) that inherently contain alkali metal ions. The AMIL consisted of sulfate anion, imidazolium cation, and alkali metal cation. AMILs were mixed directly with poly(3-sulfopropyl acrylate) lithium salt or poly(2-acrylamido-2-methylpropanesulfonic acid) lithium salt to form polymer gels. The ionic conductivity of these gels decreased with increasing polymer fraction, as in general ionic liquid/polymer mixed systems. At low polymer concentrations, these gels displayed excellent ionic conductivity of 10−4 to 10−3 S cm−1 at room temperature. Gelation was found to cause little change in the 7Li diffusion coefficient of the ionic liquid, as measured by pulse-field-gradient NMR. These data strongly suggest that the lithium cation migrates in successive pathways provided by the ionic liquids.
Language eng
Field of Research 039999 Chemical Sciences not elsewhere classified
Socio Economic Objective 970103 Expanding Knowledge in the Chemical Sciences
HERDC Research category C1.1 Refereed article in a scholarly journal
Copyright notice ©2004, Elsevier Ltd.
Persistent URL http://hdl.handle.net/10536/DRO/DU:30030225

Document type: Journal Article
Collection: Institute for Technology Research and Innovation
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