Ion and solvent dynamics in gel electrolytes based on ethylene oxide grafted acrylate polymers
(2002) In The Journal of Physical Chemistry Part B 106(47). p.12119-12123- Abstract
- Multinuclear pulsed field gradient NMR measurements and theological viscosity measurements were performed on three series of polymer gel electrolytes. The gels were based on a lithium salt electrolyte swollen into a copolymer matrix comprising an acrylate backbone and ethylene oxide side chains. In each series the side chains differed in length and number, but the acrylate-to-ethylene oxide ratio was kept constant. It was found that the self-diffusion coefficient of the cations was much lower than that of the anions, and that it decreased rapidly when the side chains got longer. In contrast, the self-diffusion coefficient of the anions was found to be independent of chain length. In the gel electrolytes, the diffusion coefficients of the... (More)
- Multinuclear pulsed field gradient NMR measurements and theological viscosity measurements were performed on three series of polymer gel electrolytes. The gels were based on a lithium salt electrolyte swollen into a copolymer matrix comprising an acrylate backbone and ethylene oxide side chains. In each series the side chains differed in length and number, but the acrylate-to-ethylene oxide ratio was kept constant. It was found that the self-diffusion coefficient of the cations was much lower than that of the anions, and that it decreased rapidly when the side chains got longer. In contrast, the self-diffusion coefficient of the anions was found to be independent of chain length. In the gel electrolytes, the diffusion coefficients of the solvent molecules are relatively constant despite an increased viscosity with increasing length of the side chains. However, in saltfree gels made for comparison, the diffusion coefficients of the solvent molecules decreased with, increasing length of the side chains, which is consistent with an increased viscosity. (Less)
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https://lup.lub.lu.se/record/322341
- author
- Adebahr, J ; Forsyth, M ; Gavelin, Patrik LU ; Jacobsson, P and Oradd, G
- organization
- publishing date
- 2002
- type
- Contribution to journal
- publication status
- published
- subject
- in
- The Journal of Physical Chemistry Part B
- volume
- 106
- issue
- 47
- pages
- 12119 - 12123
- publisher
- The American Chemical Society (ACS)
- external identifiers
-
- wos:000179543800006
- scopus:0037191893
- ISSN
- 1520-5207
- DOI
- 10.1021/jp013819n
- language
- English
- LU publication?
- yes
- additional info
- The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Polymer and Materials Chemistry (LTH) (011001041)
- id
- f1a6e642-9877-464b-8d51-ee2488e20b7c (old id 322341)
- date added to LUP
- 2016-04-01 16:09:41
- date last changed
- 2022-02-27 19:15:12
@article{f1a6e642-9877-464b-8d51-ee2488e20b7c,
abstract = {{Multinuclear pulsed field gradient NMR measurements and theological viscosity measurements were performed on three series of polymer gel electrolytes. The gels were based on a lithium salt electrolyte swollen into a copolymer matrix comprising an acrylate backbone and ethylene oxide side chains. In each series the side chains differed in length and number, but the acrylate-to-ethylene oxide ratio was kept constant. It was found that the self-diffusion coefficient of the cations was much lower than that of the anions, and that it decreased rapidly when the side chains got longer. In contrast, the self-diffusion coefficient of the anions was found to be independent of chain length. In the gel electrolytes, the diffusion coefficients of the solvent molecules are relatively constant despite an increased viscosity with increasing length of the side chains. However, in saltfree gels made for comparison, the diffusion coefficients of the solvent molecules decreased with, increasing length of the side chains, which is consistent with an increased viscosity.}},
author = {{Adebahr, J and Forsyth, M and Gavelin, Patrik and Jacobsson, P and Oradd, G}},
issn = {{1520-5207}},
language = {{eng}},
number = {{47}},
pages = {{12119--12123}},
publisher = {{The American Chemical Society (ACS)}},
series = {{The Journal of Physical Chemistry Part B}},
title = {{Ion and solvent dynamics in gel electrolytes based on ethylene oxide grafted acrylate polymers}},
url = {{http://dx.doi.org/10.1021/jp013819n}},
doi = {{10.1021/jp013819n}},
volume = {{106}},
year = {{2002}},
}