Photo- and electroactive color changeable acrylamide gel actuator

Chunye Xu; Hirohisa Tamagawa; Mikio Uchida; Suzana Popovic; Minoru Taya

doi:10.1117/12.432654

16 July 2001 Photo- and electroactive color changeable acrylamide gel actuator

Chunye Xu, Hirohisa Tamagawa, Mikio Uchida, Suzana Popovic, Minoru Taya

Proceedings Volume 4329, Smart Structures and Materials 2001: Electroactive Polymer Actuators and Devices; (2001) https://doi.org/10.1117/12.432654
Event: SPIE's 8th Annual International Symposium on Smart Structures and Materials, 2001, Newport Beach, CA, United States

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.

Citation Download Citation

Chunye Xu, Hirohisa Tamagawa, Mikio Uchida, Suzana Popovic, and Minoru Taya "Photo- and electroactive color changeable acrylamide gel actuator", Proc. SPIE 4329, Smart Structures and Materials 2001: Electroactive Polymer Actuators and Devices, (16 July 2001); https://doi.org/10.1117/12.432654

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