An nmr investigation of ionic structure and mobility in plasticized solid polymer electrolytes

Forsyth, M., MacFarlane, D. R., Meakin, P., Smith, M. E. and Bastow, T. J. 1995, An nmr investigation of ionic structure and mobility in plasticized solid polymer electrolytes, Electrochimica acta, vol. 40, no. 13-14, pp. 2343-2347.

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Title An nmr investigation of ionic structure and mobility in plasticized solid polymer electrolytes
Author(s) Forsyth, M.
MacFarlane, D. R.
Meakin, P.
Smith, M. E.
Bastow, T. J.
Journal name Electrochimica acta
Volume number 40
Issue number 13-14
Start page 2343
End page 2347
Publisher Elsevier Science Pub. Co.
Place of publication New York, N.Y.
Publication date 1995-10
ISSN 0013-4686
1873-3859
Keyword(s) nuclear magnetic resonance
sodium-23
fluorine-19
plasticized polymer electrolytes
Summary 23Na and 19F nuclear magnetic resonance spectroscopy is used to investigate the effect of plasticizer addition on ionic structure and mobility in a urethane crosslinked polyether solid polymer electrolyte. The incorporation of dimethyl formamide and propylene carbonate plasticizers in a sodium triflate/polyether system results in an upfield chemical shift for the 23Na resonance consistent with decreased anion-cation association and increased cation-plasticizer interactions. The 19F resonances appears less susceptible to changes in chemical environment with only minor chemical shift changes recorded. Spin lattice relaxation measurements for the 19F nucleus are also reported. Two minima are observed in the relaxation measurements consistent with both an inter and intramolecular relaxation mechanism.
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:30030132

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