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Proceedings Paper

Electroactive non-ionic gel and its application
Author(s): Toshihiro Hirai; Jianming Zheng; Masashi Watanabe; Hirofusa Shirai
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Paper Abstract

We have reported that nonionic gel of ploy(vinyl alcohol) (PVA) swollen with dimethyl sulfoxide (DMSO) responds to an electric field rapidly with a large and reversible deformation, which includes a spherical bending motion to the anode side and a contraction in the direction of an electric field. The electrically induced strain in the polymer gel has ben suggested to be due to electrically induced unidirectional movement of solvent in the gel. The chemically crosslinked polymer gels used here, which had only about 2wt% of polymer content and far much larger amount of solvent in the gel networks, were a good elastic body to suffer a large mechanical deformation. Here, we discussed mechanical properties of the gel under and out of the application of an electric field, and also the interaction between the polymer network and solvent. The electrically induced deformation was discussed, as well, on the proportionality of strain to the square of an electric field for both of the bending motion to the anode side and the contracting motion in the field direction. Furthermore, we drove out the electrically induced solvent force in the gel under various conditions, and demonstrated that the electroactive non-ionic gel can be used in some mechanical devices.

Paper Details

Date Published: 7 June 2000
PDF: 10 pages
Proc. SPIE 3987, Smart Structures and Materials 2000: Electroactive Polymer Actuators and Devices (EAPAD), (7 June 2000); doi: 10.1117/12.387793
Show Author Affiliations
Toshihiro Hirai, Shinshu Univ. (Japan)
Jianming Zheng, Shinshu Univ. (Japan)
Masashi Watanabe, Shinshu Univ. (Japan)
Hirofusa Shirai, Shinshu Univ. (Japan)

Published in SPIE Proceedings Vol. 3987:
Smart Structures and Materials 2000: Electroactive Polymer Actuators and Devices (EAPAD)
Yoseph Bar-Cohen, Editor(s)

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