Cation coordination in ion-conducting gels based on PEO-grafted polymers
(2000) In Solid State Ionics 135(1-4). p.149-154- Abstract
- Ionic conducting polymer gels prepared from PEG-grafted acrylates, ethylene carbonate (EC), dimethyl carbonate (DMC), and LiPF6 are studied by means of infrared and Raman spectroscopy. It is found that the presence of grafted PEO chains substantially changes the coordination of lithium cations from 'cation-solvent' to 'cation-polymer'. Spectroscopic studies show that Li+-PEO coordination is strongly favored in competition with the solvent molecules and dominates completely at ether oxygen to Li-cation ratios (O:Li) of 10:1 and 5:1. At an O:M of 4:1 a solvent-cation interaction arises, in agreement with previously reported MD calculations of a preferred coordination number of 5 in similar systems. The results suggest that the complex... (More)
- Ionic conducting polymer gels prepared from PEG-grafted acrylates, ethylene carbonate (EC), dimethyl carbonate (DMC), and LiPF6 are studied by means of infrared and Raman spectroscopy. It is found that the presence of grafted PEO chains substantially changes the coordination of lithium cations from 'cation-solvent' to 'cation-polymer'. Spectroscopic studies show that Li+-PEO coordination is strongly favored in competition with the solvent molecules and dominates completely at ether oxygen to Li-cation ratios (O:Li) of 10:1 and 5:1. At an O:M of 4:1 a solvent-cation interaction arises, in agreement with previously reported MD calculations of a preferred coordination number of 5 in similar systems. The results suggest that the complex interactions which determine long time stability and ionic transport properties can be designed by functionalization of the polymer backbone in PMMA-based gel electrolytes. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/150765
- author
- Adebahr, Josefina ; Gavelin, Patrik LU ; Jannasch, Patric LU ; Ostrovskii, Denis ; Wesslén, Bengt LU and Jacobsson, Per
- organization
- publishing date
- 2000
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Solid State Ionics
- volume
- 135
- issue
- 1-4
- pages
- 149 - 154
- publisher
- Elsevier
- external identifiers
-
- scopus:0034323034
- ISSN
- 0167-2738
- DOI
- 10.1016/S0167-2738(00)00294-0
- 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
- 9576441f-b64c-46de-9e6c-bc45fb6cfb8c (old id 150765)
- date added to LUP
- 2016-04-01 12:30:28
- date last changed
- 2022-02-26 08:00:25
@article{9576441f-b64c-46de-9e6c-bc45fb6cfb8c, abstract = {{Ionic conducting polymer gels prepared from PEG-grafted acrylates, ethylene carbonate (EC), dimethyl carbonate (DMC), and LiPF6 are studied by means of infrared and Raman spectroscopy. It is found that the presence of grafted PEO chains substantially changes the coordination of lithium cations from 'cation-solvent' to 'cation-polymer'. Spectroscopic studies show that Li+-PEO coordination is strongly favored in competition with the solvent molecules and dominates completely at ether oxygen to Li-cation ratios (O:Li) of 10:1 and 5:1. At an O:M of 4:1 a solvent-cation interaction arises, in agreement with previously reported MD calculations of a preferred coordination number of 5 in similar systems. The results suggest that the complex interactions which determine long time stability and ionic transport properties can be designed by functionalization of the polymer backbone in PMMA-based gel electrolytes.}}, author = {{Adebahr, Josefina and Gavelin, Patrik and Jannasch, Patric and Ostrovskii, Denis and Wesslén, Bengt and Jacobsson, Per}}, issn = {{0167-2738}}, language = {{eng}}, number = {{1-4}}, pages = {{149--154}}, publisher = {{Elsevier}}, series = {{Solid State Ionics}}, title = {{Cation coordination in ion-conducting gels based on PEO-grafted polymers}}, url = {{http://dx.doi.org/10.1016/S0167-2738(00)00294-0}}, doi = {{10.1016/S0167-2738(00)00294-0}}, volume = {{135}}, year = {{2000}}, }