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Adsorption-induced chemomechanical behavior of polypyrrole films

1997; Wiley; Volume: 64; Issue: 2 Linguagem: Inglês

10.1002/(sici)1097-4628(19970411)64

1097-4628

Hidenori Okuzaki, Toshio Kunugi,

Advanced Sensor and Energy Harvesting Materials

Journal of Applied Polymer ScienceVolume 64, Issue 2 p. 383-388 Adsorption-induced chemomechanical behavior of polypyrrole films Hidenori Okuzaki, Hidenori Okuzaki Department of Applied Chemistry and Biotechnology, Faculty of Engineering, Yamanashi University, 4-3-11 Takeda, Kofu 400, JapanSearch for more papers by this authorToshio Kunugi, Corresponding Author Toshio Kunugi Department of Applied Chemistry and Biotechnology, Faculty of Engineering, Yamanashi University, 4-3-11 Takeda, Kofu 400, JapanDepartment of Applied Chemistry and Biotechnology, Faculty of Engineering, Yamanashi University, 4-3-11 Takeda, Kofu 400, Japan===Search for more papers by this author Hidenori Okuzaki, Hidenori Okuzaki Department of Applied Chemistry and Biotechnology, Faculty of Engineering, Yamanashi University, 4-3-11 Takeda, Kofu 400, JapanSearch for more papers by this authorToshio Kunugi, Corresponding Author Toshio Kunugi Department of Applied Chemistry and Biotechnology, Faculty of Engineering, Yamanashi University, 4-3-11 Takeda, Kofu 400, JapanDepartment of Applied Chemistry and Biotechnology, Faculty of Engineering, Yamanashi University, 4-3-11 Takeda, Kofu 400, Japan===Search for more papers by this author First published: 07 December 1998 https://doi.org/10.1002/(SICI)1097-4628(19970411)64:2 3.0.CO;2-0Citations: 28AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat Abstract We have discovered that electrochemically synthesized polypyrrole films undergo quick and intensive bending in ambient air without the use of heat, ions, or an electric field. The principle of motion was based on a reversible van der Waals adsorption of water or polar organic molecules onto the film, which distinguished it from other systems owing to electrochemical doping and undoping. The motion of film largely depended on the kind of adsorbate used: water vapor molecules caused rapid bending of the film to the opposite side. In contrast, when polar organic molecules were used as an adsorbate, the bending of film occurred to the same side, namely, the direction of bending was just opposite to that observed for water vapor. On the basis of this phenomenon, we have devised a novel actuator which moves by a spontaneous rotation. Further, an experimental "polypyrrole engine" has been made, which used a polypyrrole belt as working substance and adsorbate as fuel. When water and iodomethane were used as the adsorbates, the belt rotated at a speed of 22 cm min−1. © 1997 John Wiley & Sons, Inc. J Appl Polym Sci 64: 383–388, 1997 Citing Literature Volume64, Issue211 April 1997Pages 383-388 RelatedInformation