Ion Conductivity of Comb Polysiloxane Polyelectrolytes Containing Oligoether and Perfluoroether Sidechains
- 1 January 2003
- journal article
- Published by The Electrochemical Society in Journal of the Electrochemical Society
- Vol. 150 (8) , A1090-A1094
- https://doi.org/10.1149/1.1589759
Abstract
The ion conductivity has been studied in comb polyelectrolytes consisting of a polysiloxane backbone with oligoether and lithium-sulfonate terminating perfluoroether sidechains. The room-temperature conductivity was found to reach a maximum of 2.5×10−6S/cm2.5×10−6S/cm at 33 etheric oxygens per lithium ion. The cation mobility is coupled to the polymer segmental motion and is described by the Vogel-Tamman-Fulcher (VTF) equation. The mechanisms behind ion mobility are studied by means of the VTF parameters σ0,σ0, B, and T0.T0. In particular, the number of charge carriers as reflected in the parameter σ0σ0 is shown to strongly correlate with the conductivity maxima as a function of lithium ion concentration. © 2003 The Electrochemical Society. All rights reserved.Keywords
This publication has 35 references indexed in Scilit:
- Study of the conductivity and side chain mobility of a comb-like polymer electrolyte using the dynamic mechanical methodSolid State Ionics, 2001
- A Highly Conductive Solid-State Polymer Electrolyte Based on a Double-Comb Polysiloxane Polymer with Oligo(ethylene oxide) Side ChainsOrganometallics, 1999
- Lithium salts of bis(perfluoroalkyl)sulfonic acids: synthesis, characterization and conductivity studiesJournal of Fluorine Chemistry, 1996
- Perfluorosulfonate-polyether based single ion conductorsElectrochimica Acta, 1995
- Solvent-free cation-conducting polysiloxane electrolytes with pendant oligo(oxyethylene) and sulfonate groupsMacromolecules, 1993
- Novel single and double ion type siloxane polymeric solid electrolytes prepared by same prepolymersElectrochimica Acta, 1992
- Effect of crosslinking on the a.c. conductivity of poly(3,6,9,12-tetraoxatridec-1-ene)/lithium perchlorate mixturesPolymer, 1989
- Ionic conductivity of unsaturated polyester resin networks containing LiCIO4British Polymer Journal, 1989
- Comblike polysiloxanes with oligo(oxyethylene) side chains. Synthesis and propertiesMacromolecules, 1988
- The Temperature Dependence of Relaxation Mechanisms in Amorphous Polymers and Other Glass-forming LiquidsJournal of the American Chemical Society, 1955