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Proceedings Paper

Electrochemomechanical deformation (ECMD) of PPyDBS in free standing film formation and trilayer designs
Author(s): Nihan Aydemir; Tarmo Tamm; Jadranka Travas-Sejdic; Paul A. Kilmartin; Alvo Aabloo; Rudolf Kiefer
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Paper Abstract

An investigation is reported into the electrochemomechanical deformation (ECMD) of polypyrrole (PPy) doped with dodecylbenzenesulfonate (DBS) in the form of freestanding films and deposited onto conductive substrates (chemically fixed poly-3,4-(ethylenedioxythiophene, PEDOT) based on PVdF (poly(vinylidenefluoride)). Linear actuation has been achieved starting from a trilayer bending actuator design with a stretchable middle layer. To allow evaluation of the proposed design, commercially available PVdF membranes were chosen as model material. For bending trilayer functionality, electronic separation of both electrode layers is essential, but in order to obtain linear actuation, the CP layers on either side are connected to form a single working electrode. The PPyDBS free standing films and PPyDBS deposited on PEDOT-PVdF-PEDOT were investigated by electrochemical methods (cyclic voltammetry, square wave potentials) in a 4-methyl-1,3-dioxolan-2-one (propylene carbonate, PC) solution of tetrabutylammonium trifluoromethanesulfonate (TBACF3SO3). This study also presents a novel method of utilizing scanning ion-conductance microscopy (SICM) to accurately examine the electrochemical redox behavior of the surface layer of the linear actuator using a micropipette tip.

Paper Details

Date Published: 8 March 2014
PDF: 8 pages
Proc. SPIE 9056, Electroactive Polymer Actuators and Devices (EAPAD) 2014, 905631 (8 March 2014); doi: 10.1117/12.2044702
Show Author Affiliations
Nihan Aydemir, The Univ. of Auckland (New Zealand)
Tarmo Tamm, Univ. of Tartu (Estonia)
Jadranka Travas-Sejdic, The Univ. of Auckland (New Zealand)
Paul A. Kilmartin, The Univ. of Auckland (New Zealand)
Alvo Aabloo, Univ. of Tartu (Estonia)
Rudolf Kiefer, The Univ. of Auckland (New Zealand)
Univ. of Tartu (Estonia)

Published in SPIE Proceedings Vol. 9056:
Electroactive Polymer Actuators and Devices (EAPAD) 2014
Yoseph Bar-Cohen, Editor(s)

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