Fast Response Polypyrrole Actuators with Auxiliary Electrodes
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概要
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Electrochemical polypyrrole (PPy) actuators, prepared electrochemically from a methyl benzoate solution of tetra-$n$-butylammonium trifluoromethanesulfonate (TBACF3SO3), have been studied to improve the response rate by two methods; 1) a PPy film attached with plural auxiliary electrodes of thin Au coils, 2) a PPy film equipped with a compliant Au electrode on one side of the film. With increasing the number of auxiliary electrodes for the first method, the film responded faster as if it were a shorter film. These results are due to the decrease in the IR voltage drop along the film from the electrodes and also due to the increased current to the whole film via plural electrodes. The PPy film with the Au thin layer (the second method) exhibited up to 8.8%/s strain rate, which was much faster than that (0.5%/s) without the auxiliary electrodes, keeping the maximum strain of 12–13%. The auxiliary electrodes improved not only the response speed of the PPy actuators but also the durability upon cycling electrochemically.
- 2005-11-15
著者
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Takashima Wataru
Graduate School Of Life Science And Systems Engineering Kyushu Institute Of Technology
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Hara Susumu
Eamex Co.
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Kaneto Keiichi
Graduate School Of Life Science And System Engineering Kyushu Institute Of Technology
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ZAMA Tetsuji
EAMEX Co.
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Takashima Wataru
Graduate School of Life Science and Systems Engineering, Kyushu Institute of Technology, 2-4 Hibikino, Wakamatsu-ku, Kitakyushu 808-0196, Japan
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Kaneto Keiichi
Graduate School of Life Science and Systems Engineering, Kyushu Institute of Technology, 2-4 Hibikino, Wakamatsu-ku, Kitakyushu 808-0196, Japan
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Takashima Wataru
Graduate School of Life Science and System Engineering, Kyushu Institute of Technology, Kitakyushu 808-0196, Japan
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