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Amphiphilic polymer gel electrolytes. II. Influence of the ethylene oxide side-chain length on the gel properties

Gavelin, Patrik LU ; Ostrovskii, Denis; Adebahr, Josefina; Jannasch, Patric LU and Wesslén, Bengt LU (2001) In Journal of Polymer Science. Part B, Polymer Physics 39(13). p.1519-1524
Abstract
Amphiphilic polymers consisting of copolymethacrylates carrying about 26 wt % ethylene oxide [(EO)(n)] side chains of different lengths were used as matrices in gel electrolytes. The gel electrolytes were composed of 30 wt % copolymer and 70 wt % 1 M LiPF6 in a mixture of ethylene carbonate and gamma -butyrolactone (2/1 w/w). The coordination of lithium ions by the (EO)(n) side chains in competition with the solvent was studied by Raman spectroscopy. A significantly stronger lithium coordination was observed when the gel electrolyte was based on a copolymer carrying (EO)(9) units in comparison with copolymers having (EO)(1), (EO)(2), and (EO)(4) units. Despite the observed stronger lithium coordination by (EO)(9) units in the gel, the ion... (More)
Amphiphilic polymers consisting of copolymethacrylates carrying about 26 wt % ethylene oxide [(EO)(n)] side chains of different lengths were used as matrices in gel electrolytes. The gel electrolytes were composed of 30 wt % copolymer and 70 wt % 1 M LiPF6 in a mixture of ethylene carbonate and gamma -butyrolactone (2/1 w/w). The coordination of lithium ions by the (EO)(n) side chains in competition with the solvent was studied by Raman spectroscopy. A significantly stronger lithium coordination was observed when the gel electrolyte was based on a copolymer carrying (EO)(9) units in comparison with copolymers having (EO)(1), (EO)(2), and (EO)(4) units. Despite the observed stronger lithium coordination by (EO)(9) units in the gel, the ion conductivity was not significantly lower with respect to the gels based on the other copolymers. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Polymer Science. Part B, Polymer Physics
volume
39
issue
13
pages
1519 - 1524
publisher
John Wiley & Sons
external identifiers
  • scopus:0035398296
ISSN
0887-6266
DOI
10.1002/polb.1124
language
English
LU publication?
yes
id
5f3109ab-5278-436e-bd76-29abe9c731dd (old id 150787)
date added to LUP
2007-07-13 11:48:28
date last changed
2018-01-07 09:35:12
@article{5f3109ab-5278-436e-bd76-29abe9c731dd,
  abstract     = {Amphiphilic polymers consisting of copolymethacrylates carrying about 26 wt % ethylene oxide [(EO)(n)] side chains of different lengths were used as matrices in gel electrolytes. The gel electrolytes were composed of 30 wt % copolymer and 70 wt % 1 M LiPF6 in a mixture of ethylene carbonate and gamma -butyrolactone (2/1 w/w). The coordination of lithium ions by the (EO)(n) side chains in competition with the solvent was studied by Raman spectroscopy. A significantly stronger lithium coordination was observed when the gel electrolyte was based on a copolymer carrying (EO)(9) units in comparison with copolymers having (EO)(1), (EO)(2), and (EO)(4) units. Despite the observed stronger lithium coordination by (EO)(9) units in the gel, the ion conductivity was not significantly lower with respect to the gels based on the other copolymers.},
  author       = {Gavelin, Patrik and Ostrovskii, Denis and Adebahr, Josefina and Jannasch, Patric and Wesslén, Bengt},
  issn         = {0887-6266},
  language     = {eng},
  number       = {13},
  pages        = {1519--1524},
  publisher    = {John Wiley & Sons},
  series       = {Journal of Polymer Science. Part B, Polymer Physics},
  title        = {Amphiphilic polymer gel electrolytes. II. Influence of the ethylene oxide side-chain length on the gel properties},
  url          = {http://dx.doi.org/10.1002/polb.1124},
  volume       = {39},
  year         = {2001},
}