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A 13C NMR study of the role of plasticizers in the conduction mechanism of solid polymer electrolytes

Forsyth, M., Meakin, P. M. and MacFarlane, D. R. 1995, A 13C NMR study of the role of plasticizers in the conduction mechanism of solid polymer electrolytes, Electrochimica acta, vol. 40, no. 13-14, pp. 2339-2342.

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Title A 13C NMR study of the role of plasticizers in the conduction mechanism of solid polymer electrolytes
Formatted title A 13C NMR study of the role of plasticizers in the conduction mechanism of solid polymer electrolytes
Author(s) Forsyth, M.
Meakin, P. M.
MacFarlane, D. R.
Journal name Electrochimica acta
Volume number 40
Issue number 13-14
Start page 2339
End page 2342
Publisher Elsevier Science Pub. Co.
Place of publication New York, N.Y.
Publication date 1995-10
ISSN 0013-4686
1873-3859
Keyword(s) NMR
pasticizer
polymer electrolytes
polyether
LiClO4
Summary The addition of low molecular weight solvents such as dimethyl formamide (DMF) and propylene carbonate (PC) to urethane crosslinked polyethers results in enhancement of polymer segmental motion, as determined in this work from polymer 13C spin lattice relaxation measurements (T1) and glass transition temperatures. The formation of salt-polyether complexes results in a decrease in T1, even in the presence of the plasticizer, indicating that the polymer ether molecules are still involved in the alkali metal coordination. In a polymer electrolyte containing 1 mol kg−1 LiClO4 the addition of DMF and PC have significantly different affects on the polymer mobility, although they both enhance the conductivity. The conductivity enhancement therefore is not solely the result of an increased solvent mobility.
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 ©1995, Elsevier Science Ltd.
Persistent URL http://hdl.handle.net/10536/DRO/DU:30030138

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