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Role and effect of dopant ion on sorption-induced motion of polypyrrole films

1998; Wiley; Volume: 36; Issue: 14 Linguagem: Inglês

10.1002/(sici)1099-0488(199810)36

1099-0488

Hidenori Okuzaki, Takayoshi Kuwabara, Takamitsu Kondo,

Fuel Cells and Related Materials

Journal of Polymer Science Part B: Polymer PhysicsVolume 36, Issue 14 p. 2635-2642 Article Role and effect of dopant ion on sorption-induced motion of polypyrrole films Hidenori Okuzaki, Corresponding Author Hidenori Okuzaki 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 JapanSearch for more papers by this authorTakayoshi Kuwabara, Takayoshi Kuwabara Department of Applied Chemistry and Biotechnology, Faculty of Engineering, Yamanashi University, 4-3-11 Takeda, Kofu 400 JapanSearch for more papers by this authorTakamitsu Kondo, Takamitsu Kondo Department of Applied Chemistry and Biotechnology, Faculty of Engineering, Yamanashi University, 4-3-11 Takeda, Kofu 400 JapanSearch for more papers by this author Hidenori Okuzaki, Corresponding Author Hidenori Okuzaki 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 JapanSearch for more papers by this authorTakayoshi Kuwabara, Takayoshi Kuwabara Department of Applied Chemistry and Biotechnology, Faculty of Engineering, Yamanashi University, 4-3-11 Takeda, Kofu 400 JapanSearch for more papers by this authorTakamitsu Kondo, Takamitsu Kondo Department of Applied Chemistry and Biotechnology, Faculty of Engineering, Yamanashi University, 4-3-11 Takeda, Kofu 400 JapanSearch for more papers by this author First published: 07 December 1998 https://doi.org/10.1002/(SICI)1099-0488(199810)36:14 3.0.CO;2-CCitations: 10AboutPDF 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 The sorption-induced bending and recovery motion of PPy films containing different dopant ions have been investigated, and the interaction between water vapor and PPy was studied from sorption isotherms and kinetics. It was found that the PPy/BF4 film exhibited the most rapid motion, and the initial speeds of bending and recovery motion were 7.9 and 5.9 mm s−1, respectively. The linear expansion coefficient of the film increased in order of PPy/DBS, PPy/TsO, PPy/ClO4, and PPy/BF4, which is consistent with the packing density of the PPy chains (ϕPPy). The dual-mode sorption model applied to the isothermal sorption of water vapor to the PPy demonstrated that the Langmuir's capacity constant increased in the same order with the ϕPPy, while the Henry's law constant was nearly constant. The sorption kinetics obeyed Fickian despite the dimensional change of the films, and the PPy/BF4 film had the largest diffusion coefficient of 3.13 × 10−8 cm2 s−1. The experimental results indicated that the kind of dopant ion was crucial to the thermodynamics and kinetics of sorption, and the quick and intensive bending motion of PPy/BF4 films was attributed to the fast diffusion of water vapor, which caused the large dimensional change of the film.© 1998 John Wiley & Sons, Inc. J. Polym. Sci. B Polym. Phys. 36: 2635–2642, 1998 Citing Literature Volume36, Issue14October 1998Pages 2635-2642 RelatedInformation