Conductivity and NMR properties of plasticized polyethers complexed with lithium salts

Forsyth, Maria and Garcia Martinez, Marian and MacFarlane, Douglas R. and Ng, S. and Smith, Mark E. and Strange, John H. (1995) Conductivity and NMR properties of plasticized polyethers complexed with lithium salts. In: 10th International Conference on Solid State Ionics (SSI-10), DEC 03-08, 1995, Singapore, Singapore. (The full text of this publication is not available from this repository)

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Abstract

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 F-19-NMR, in plasticized SPEs are also reported.

Item Type: Conference or workshop item (Paper)
Additional information: 10th International Conference on Solid State Ionics (SSI-10) SINGAPORE, SINGAPORE, DEC 03-08, 1995 Natl Univ Singapore, Dept Phys; Asian Soc Solid State Ion
Subjects: Q Science > QD Chemistry
Divisions: Faculties > Science Technology and Medical Studies > School of Biosciences
Depositing User: R.F. Xu
Date Deposited: 08 Jun 2009 14:33
Last Modified: 15 Jul 2014 07:58
Resource URI: http://kar.kent.ac.uk/id/eprint/19188 (The current URI for this page, for reference purposes)
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