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Proceedings Paper

How to improve electrochemomechanical strain in conducting polymers
Author(s): Keiichi Kaneto; Kohei Takayanagi; Kazuo Tominaga; Wataru Takashima
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Paper Abstract

We have been studying electrochemomechanical deformation (ECMD) of conducting polymers to realize artificial muscles or soft actuators, since 1992. For the practical application, i.e., strain, stress, response time, cycle stability and creep have to be improved to levels of demands. In this paper, some attempts to improve the strain are mentioned for polyaniline, polypyrrole and poly(3,4-ethylenedioxythiophene), PEDOT. Especially, PEDOT actuator was found to show novel features in ECMD under tensile loads. The actuation was driven by cation insertion upon reduction in any combination of electrolytes and solvents. Another interesting feature was that the actuation under tensile loads showed larger strain than that without tensile loads. These facts were explained with a model of helical confinement of anions during the electrodeposition and uniaxial alignment of helices by the electrochemical creep under tensile loads.

Paper Details

Date Published: 3 April 2012
PDF: 7 pages
Proc. SPIE 8340, Electroactive Polymer Actuators and Devices (EAPAD) 2012, 83400K (3 April 2012); doi: 10.1117/12.917879
Show Author Affiliations
Keiichi Kaneto, Kyushu Institute of Technology (Japan)
Kohei Takayanagi, Kyushu Institute of Technology (Japan)
Kazuo Tominaga, Kyushu Institute of Technology (Japan)
Wataru Takashima, Kyushu Institute of Technology (Japan)

Published in SPIE Proceedings Vol. 8340:
Electroactive Polymer Actuators and Devices (EAPAD) 2012
Yoseph Bar-Cohen, Editor(s)

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