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A MODEL OF ION TRANSPORT IN CONJUGATED POLYMERS

Part of: Diffusion and convection

Published online by Cambridge University Press:  03 November 2009

JOHN BURNELL
JOHN BURNELL*
Affiliation:
Industrial Research Limited, Lower Hutt, New Zealand (email: j.burnell@irl.cri.nz)
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Abstract

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Understanding ion transport in conjugated polymers is essential for developing mathematical models of applications of these materials. Previous experimental studies have suggested that cation transport in a conjugated polymer could be either diffusion or drift controlled, with debate over which dominates. In this paper we present a new model of cation transport that explains most of the features seen in a set of recent experiments. This model gives good agreement with measured concentration profiles, except when the profile has penetrated the polymer by more than 60%. The model shows that both diffusion and drift processes can be present. An application of a micro-actuator based on a conjugated polymer is presented to demonstrate that this technology could be used to develop a micro-pump.

Keywords

ion transportconjugated polymers

MSC classification

Secondary: 76R99: None of the above, but in this section
Type
Research Article
Information
The ANZIAM Journal , Volume 50 , Issue 3: This Special Issue is dedicated to Dr Stephen White , January 2009 , pp. 355 - 364
Copyright
Copyright © Australian Mathematical Society 2009

References

[1]Plieth, W., Bund, A., Rammelt, U., Neudeck, S. and Duc, L., “The role of ion and solvent transport during the redox process of conducting polymers”, Electro. Acta. 51 (2006) 2366–2372.CrossRefGoogle Scholar
[2]Smela, E., “Conjugated polymer actuators for biomedical applications”, Adv. Mater. 15 (2003) 481–494.CrossRefGoogle Scholar
[3]Smela, E. and Gadegaard, N., “Volume change in polypyrrole studied by atomic force microscopy”, J. Phys. Chem. B 105 (2001) 9395–9405.CrossRefGoogle Scholar
[4]Wang, X., Shapiro, B. and Smela, E., “Visualizing ion currents in conjugated polymers”, Adv. Mater. 16 (2004) 1605–1609.CrossRefGoogle Scholar
[5]Wu, Y., Alici, G., Spinks, G. and Wallace, G., “Fast trilayer polypyrrole bending actuators for high speed applications”, Synth. Met. 156 (2006) 1017–1022.CrossRefGoogle Scholar
[6]Xie, J., Shih, J., Lin, Q., Yang, B. and Tai, Y., “Dynamic simulation of a peristaltic micropump considering coupled fluid flow and structural motion”, J. Micromech. Microeng. 17 (2007) 220–228.Google Scholar