Ionically conducting side chain liquid crystal polymer electrolytes
The synthesis and characterisation is described of a new liquid crystalline side-chain polymer based on a predominantly poly(ethylene oxide) backbone attached to which via flexible spacers are mesogenic groups. The thermal behaviour and ionic conductivities of this polymer and its complex with LiClO...
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Published in | Electrochimica acta Vol. 43; no. 10; pp. 1151 - 1154 |
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Main Authors | , , |
Format | Journal Article Conference Proceeding |
Language | English |
Published |
Oxford
Elsevier Ltd
01.01.1998
Elsevier |
Subjects | |
Online Access | Get full text |
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Summary: | The synthesis and characterisation is described of a new liquid crystalline side-chain polymer based on a predominantly poly(ethylene oxide) backbone attached to which
via flexible spacers are mesogenic groups. The thermal behaviour and ionic conductivities of this polymer and its complex with LiClO
4 are compared to those of a structurally analogous but amorphous polymer. The variation of the ionic conductivity as a function of scaled inverse temperature (
T
g/
T) differs for the two systems. For the amorphous complex the ionic mobility is coupled to structural relaxations of the polymer and becomes very small at
T
g. By contrast for the liquid crystalline complex there appears to be a decoupling of the ion motions from structural relaxations. This remarkable observation is thought to imply a new conduction mechanism. |
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Bibliography: | SourceType-Scholarly Journals-2 ObjectType-Feature-2 ObjectType-Conference Paper-1 content type line 23 SourceType-Conference Papers & Proceedings-1 ObjectType-Article-3 |
ISSN: | 0013-4686 1873-3859 |
DOI: | 10.1016/S0013-4686(97)10013-5 |