Improved cathodic expansions of polypyrrole films by poly(2-methoxyaniline-5-sulfonate) incorporation

We describe the effect of conducting guest polymer, poly(2-methoxyaniline-5-sulfonate, PMAS), incorporation on the electrochemomechanical deforming (ECMD) characteristics of polypyrrole (PPy) film. The films electrodeposited in the aqueous solutions having dodecylbenzene sulfonate (DBS) as the main...

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Bibliographic Details
Published in:Thin solid films 2006-03, Vol.499 (1), p.179-184
Main Authors: Tanaka, Akihisa, Takashima, Wataru, Kaneto, Keiichi
Format: Article
Language:English
Subjects:
Applied sciences
Cathodic expansion
Conducting polymer
Cross-disciplinary physics: materials science
rheology
Electrical, magnetic and optical properties
Electrochemomechanical deformation
Exact sciences and technology
Liquid phase epitaxy
deposition from liquid phases (melts, solutions, and surface layers on liquids)
Materials science
Methods of deposition of films and coatings
film growth and epitaxy
Organic polymers
Physicochemistry of polymers
Physics
Polypyrrole
Properties and characterization
Sulfonated polyaniline
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Summary:We describe the effect of conducting guest polymer, poly(2-methoxyaniline-5-sulfonate, PMAS), incorporation on the electrochemomechanical deforming (ECMD) characteristics of polypyrrole (PPy) film. The films electrodeposited in the aqueous solutions having dodecylbenzene sulfonate (DBS) as the main supporting electrolyte mixed with various amounts of PMAS as the polymer additive, exhibited the drastic change of ECMD behaviors as a function of PMAS content. A complicated ECMD behavior was observed for the PPy film having 5% PMAS dopant in 0.5 M KCl/aqueous solution, which turned to be a simple cathodic expansion (4.5% in strain) in 0.5 M tetra-bulyammonium tetra-fluoroborate/acetonitrile(AcCN) solution. The large cathodic expansion of 6.2% was observed in tetra-bulyammonium chloride/AcCN solution. Responses of ECMD behaviors of the films in Square-Wave Voltammetry (SWV) elucidate that the anion exchange is simultaneously occurred with cation exchange even in the cathodic expansive films. For the cathodic expansion of PPy film, the PMAS incorporation is effective to improve the deformation magnitude. The cathodic expansion should be improved in the judicious selection of electrolyte having bulky cation with small anion as well as preferable solvent.
ISSN:0040-6090
1879-2731
DOI:10.1016/j.tsf.2005.06.070