Enhanced Swelling Behaviors of Polypyrrole Film Doped with Sulfonated Polyaniline

Abstract

Polypyrrole (PPyDBS/PMAS) films partially doped with poly(2-methoxyaniline-5-sulfonate) (PMAS) have been deposited in dodecylbenzene sulfonic acid solutions. Both of the conductivity and water content of the film were found to show the strong dependence of PMAS contents, indicating that the PMAS was clearly incorporated and strongly affects the film characteristics. The obvious increase of cathodic expansion (4.5% in expansive strain) for PPyDBS/PMAS (5%) film elucidates that the PMAS additive contributes to improve the cathodic expansion, which can be attributed to the increased swelling capability of PPy with PMAS incorporation.

Soft Actuators based on Polypyrrole and Polyaniline Composite Films

“…In this paper, ECMD behaviors of polypyrrole and polyaniline composite films prepared by electrochemical polymerization of pyrrole in the presence of the anionic conducting polymer, poly(3-methoxyaniline-5-sulfonate) (PMAS) acid will be reported. These results follow our previous papers [6]. The ECMD of the films in aqueous and organic solutions with various electrolytes will be discussed in terms of cation and anion driven strains.…”

“…The result of Fig.7 confirms that the redox reaction at the voltage below 0 V involved the movement of cations. Similar experiments using electrolytes, NaCl, NaBr, NaI, NaBF 4 and NaPF 6 have been completed, and the result of almost-independent strain for different anions indicated that the redox reaction involved only the cation. The examination of ECMD behaviours of composite films for x > 5% was attempted in aqueous and organic electrolytes.…”

“…It was found that with increasing PMAS ratio, the water content increases, exhibiting a gel-like appearance. 6) . Test films were attached to the working electrodes (WE) made of platinum (Pt) wire, and the film bottom was connected to a thin Pt wire, which suspended a reflecting plate through the pinhole of the cell.…”

Organic Bionics: A New Dimension in Neural Communications

“…An interesting approach has been to incorporate a complementary conducting polymer, in particular poly(2‐methoxyaniline‐5‐sulfonic acid) (PMAS), into PPy as the dopant 49. This system is particularly interesting in that it also provides “softer” gel‐like PPy substrates50, 51 and access to multiple electrochemically switching scenarios (via the conducting backbone and the conducting dopant) that can be used to manipulate properties in situ. To date, PPy/PMAS substrates have proven to be highly effective for supporting the differentiation of both primary (muscle) myoblasts52 and nerve cells,53 of which the latter can be enhanced by electrical stimulation.…”