A vibrational spectroscopic study of lithium triflate in polyphosphazenes with linear oligoethyleneoxy side-chains of different lengths

S. York; E. C. Kellam; H. R. Allcock; R. Frech

doi:10.1016/S0013-4686(00)00752-0

A vibrational spectroscopic study of lithium triflate in polyphosphazenes with linear oligoethyleneoxy side-chains of different lengths

S. York, E. C. Kellam, H. R. Allcock, R. Frech

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

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Abstract

A comparative vibrational spectroscopy study is reported for a series of polymer electrolytes composed of poly(oligoethyleneoxy phosphazenes) containing dissolved lithium triflate. These polymers, of the form [NP((OCH₂CH₂)_x OCH₃)₂]_n, with x = 0, 1, 2, or 5, have been mixed with LiCF₃SO₃ in oxygen:lithium concentration ratios ranging from 10:1 to 40:1. Raman vibrational spectroscopy has been used to examine ionic association and local changes of the polymer as the salt concentration and the length of the ethylene oxide side-chains vary. The degree of ionic association of the triflate ion increases with increasing salt concentration. At a given salt concentration, the degree of ionic association and the nature of the ion-polymer interaction are dependent on the length of the side-chains.

Original language	English (US)
Pages (from-to)	1553-1557
Number of pages	5
Journal	Electrochimica Acta
Volume	46
Issue number	10-11
DOIs	https://doi.org/10.1016/S0013-4686(00)00752-0
State	Published - Mar 15 2001

All Science Journal Classification (ASJC) codes

General Chemical Engineering
Electrochemistry

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10.1016/S0013-4686(00)00752-0

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@article{4e4726cab7d54538998877861331b03d,

title = "A vibrational spectroscopic study of lithium triflate in polyphosphazenes with linear oligoethyleneoxy side-chains of different lengths",

abstract = "A comparative vibrational spectroscopy study is reported for a series of polymer electrolytes composed of poly(oligoethyleneoxy phosphazenes) containing dissolved lithium triflate. These polymers, of the form [NP((OCH2CH2)x OCH3)2]n, with x = 0, 1, 2, or 5, have been mixed with LiCF3SO3 in oxygen:lithium concentration ratios ranging from 10:1 to 40:1. Raman vibrational spectroscopy has been used to examine ionic association and local changes of the polymer as the salt concentration and the length of the ethylene oxide side-chains vary. The degree of ionic association of the triflate ion increases with increasing salt concentration. At a given salt concentration, the degree of ionic association and the nature of the ion-polymer interaction are dependent on the length of the side-chains.",

author = "S. York and Kellam, {E. C.} and Allcock, {H. R.} and R. Frech",

note = "Funding Information: Funding was provided by the Oklahoma Center for Science and Technology contract #5377, EPSCoR and the Department of Energy grant #DE-FG02-93ER14387. ",

year = "2001",

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doi = "10.1016/S0013-4686(00)00752-0",

language = "English (US)",

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T1 - A vibrational spectroscopic study of lithium triflate in polyphosphazenes with linear oligoethyleneoxy side-chains of different lengths

AU - York, S.

AU - Kellam, E. C.

AU - Allcock, H. R.

AU - Frech, R.

N1 - Funding Information: Funding was provided by the Oklahoma Center for Science and Technology contract #5377, EPSCoR and the Department of Energy grant #DE-FG02-93ER14387.

PY - 2001/3/15

Y1 - 2001/3/15

N2 - A comparative vibrational spectroscopy study is reported for a series of polymer electrolytes composed of poly(oligoethyleneoxy phosphazenes) containing dissolved lithium triflate. These polymers, of the form [NP((OCH2CH2)x OCH3)2]n, with x = 0, 1, 2, or 5, have been mixed with LiCF3SO3 in oxygen:lithium concentration ratios ranging from 10:1 to 40:1. Raman vibrational spectroscopy has been used to examine ionic association and local changes of the polymer as the salt concentration and the length of the ethylene oxide side-chains vary. The degree of ionic association of the triflate ion increases with increasing salt concentration. At a given salt concentration, the degree of ionic association and the nature of the ion-polymer interaction are dependent on the length of the side-chains.

AB - A comparative vibrational spectroscopy study is reported for a series of polymer electrolytes composed of poly(oligoethyleneoxy phosphazenes) containing dissolved lithium triflate. These polymers, of the form [NP((OCH2CH2)x OCH3)2]n, with x = 0, 1, 2, or 5, have been mixed with LiCF3SO3 in oxygen:lithium concentration ratios ranging from 10:1 to 40:1. Raman vibrational spectroscopy has been used to examine ionic association and local changes of the polymer as the salt concentration and the length of the ethylene oxide side-chains vary. The degree of ionic association of the triflate ion increases with increasing salt concentration. At a given salt concentration, the degree of ionic association and the nature of the ion-polymer interaction are dependent on the length of the side-chains.

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U2 - 10.1016/S0013-4686(00)00752-0

DO - 10.1016/S0013-4686(00)00752-0

M3 - Article

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SN - 0013-4686

VL - 46

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EP - 1557

JO - Electrochimica Acta

JF - Electrochimica Acta

IS - 10-11

ER -

A vibrational spectroscopic study of lithium triflate in polyphosphazenes with linear oligoethyleneoxy side-chains of different lengths

Abstract

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