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

M. Forsyth; D. R. MacFarlane; P. Meakin; M. E. Smith; T. J. Bastow

doi:10.1016/0013-4686(95)00190-P

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

M. Forsyth, D. R. MacFarlane, P. Meakin, M. E. Smith, T. J. Bastow

Research output: Contribution to journal › Article › Research › peer-review

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Abstract

²³ Na and ¹⁹ F 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 ²³ Na resonance consistent with decreased anion-cation association and increased cation-plasticizer interactions. The ¹⁹ F resonances appears less susceptible to changes in chemical environment with only minor chemical shift changes recorded. Spin lattice relaxation measurements for the ¹⁹ F nucleus are also reported. Two minima are observed in the relaxation measurements consistent with both an inter and intramolecular relaxation mechanism.

Original language	English
Pages (from-to)	2343-2347
Number of pages	5
Journal	Electrochimica Acta
Volume	40
Issue number	13-14
DOIs	https://doi.org/10.1016/0013-4686(95)00190-P
Publication status	Published - 1 Jan 1995

Keywords

fluorine-19
nuclear magnetic resonance
plasticized polymer electrolytes
sodium-23

Access to Document

10.1016/0013-4686(95)00190-P

Link to publication in Scopus

Cite this

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title = "An nmr investigation of ionic structure and mobility in plasticized solid polymer electrolytes",

abstract = "23 Na and 19 F 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 23 Na resonance consistent with decreased anion-cation association and increased cation-plasticizer interactions. The 19 F resonances appears less susceptible to changes in chemical environment with only minor chemical shift changes recorded. Spin lattice relaxation measurements for the 19 F nucleus are also reported. Two minima are observed in the relaxation measurements consistent with both an inter and intramolecular relaxation mechanism.",

keywords = "fluorine-19, nuclear magnetic resonance, plasticized polymer electrolytes, sodium-23",

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T1 - An nmr investigation of ionic structure and mobility in plasticized solid polymer electrolytes

AU - Forsyth, M.

AU - MacFarlane, D. R.

AU - Meakin, P.

AU - Smith, M. E.

AU - Bastow, T. J.

PY - 1995/1/1

Y1 - 1995/1/1

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AB - 23 Na and 19 F 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 23 Na resonance consistent with decreased anion-cation association and increased cation-plasticizer interactions. The 19 F resonances appears less susceptible to changes in chemical environment with only minor chemical shift changes recorded. Spin lattice relaxation measurements for the 19 F nucleus are also reported. Two minima are observed in the relaxation measurements consistent with both an inter and intramolecular relaxation mechanism.

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KW - nuclear magnetic resonance

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