Conductivity and NMR properties of plasticized polyethers complexed with lithium salts

Forsyth, M., Garcia, M., MacFarlane, D. R., Ng, S., Smith, M. E. and Strange, J. H. 1996, Conductivity and NMR properties of plasticized polyethers complexed with lithium salts, Solid state ionics, vol. 86-88, no. Part 2, pp. 1365-1370.

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Title Conductivity and NMR properties of plasticized polyethers complexed with lithium salts
Author(s) Forsyth, M.
Garcia, M.
MacFarlane, D. R.
Ng, S.
Smith, M. E.
Strange, J. H.
Journal name Solid state ionics
Volume number 86-88
Issue number Part 2
Start page 1365
End page 1370
Publisher Elsevier
Place of publication Amsterdam, The Netherlands
Publication date 1996-07
ISSN 0167-2738
1872-7689
Keyword(s) polymer electrolytes
fluorine-19 NMR
lithium-7 NMR
plasticizers
conductivity
relaxation times
Summary NMR provides a tool whereby the dynamic properties of specific nuclei can be investigated. In the present study, a poly(ethylene oxide-co-propylene oxide) network has been used as the polymer host to prepare solid polymer electrolytes (SPE) containing either LiClO4 or LiCF3SO3. In addition, a low molecular weight plasticizer [propylene carbonate (PC), dimethyl formamide (DMF) or tetraglyme] has been added to several of the samples to enhance the mobility of the polymer and, thus, of the ionic species. The effects of plasticizer and salt concentration on the ionic structure and mobility in these SPEs, as measured by NMR relaxation times, and correlation to the conductivity behaviour in these systems are discussed. Temperature dependent triflate diffusion coefficients, as measured by Pulsed Field Gradient 19F-NMR, in plasticized SPEs are also reported.
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 ©1996, Elsevier Science B.V.
Persistent URL http://hdl.handle.net/10536/DRO/DU:30030122

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