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Proceedings Paper

Photo- and electroactive color changeable acrylamide gel actuator
Author(s): Chunye Xu; Hirohisa Tamagawa; Mikio Uchida; Suzana Popovic; Minoru Taya
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Paper Abstract

Polyacrylamide hydrogels containing bis-[4- {dimethylamine}phenyl]{4-vinyl-phenyl}methyl leucohydroxide which is so called vinyl derivative of Malachite Green have been studied as color changeable gels. The response times of the color and the volume changes of the gel were measured under 6 and 2 different stimuli, respectively. We found a way to increase their color change speed upon applied electric current (E-current), and designed a gel actuator using Nafion film as a separator between two compartments and as a cation conductor. In addition acrylamide gel swollen with Na2SO4 solution was used as a medium for increasing electric conductivity. We varied the concentration of dvMG in the gel to control the degree of color change. Furthermore, we have studied the influence of gel thickness on the color change rate. In light of the results obtained, we have proposed one device consisting of this color changeable gel.

Paper Details

Date Published: 16 July 2001
PDF: 8 pages
Proc. SPIE 4329, Smart Structures and Materials 2001: Electroactive Polymer Actuators and Devices, (16 July 2001); doi: 10.1117/12.432654
Show Author Affiliations
Chunye Xu, Univ. of Washington (United States)
Hirohisa Tamagawa, Gifu Univ. (Japan)
Mikio Uchida, Univ. of Washington (United States)
Suzana Popovic, Univ. of Washington (United States)
Minoru Taya, Univ. of Washington (United States)

Published in SPIE Proceedings Vol. 4329:
Smart Structures and Materials 2001: Electroactive Polymer Actuators and Devices
Yoseph Bar-Cohen, Editor(s)

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