Abstract
Polypyrrole(dodecylbenzene sulfonate), a type of conjugated polymer that can change volume under electrochemical stimulation, was electrochemically deposited on metal-coated Kapton ® strips using current densities that ranged from 0.4 to 40 mA/cm 2. The resulting bending beams were subjected to various voltage and current stimulation waveforms, and the beam movements and electrochemical activity were recorded. The extent of beam curling during cyclic voltammetry and potential stepping correlated inversely with deposition current density. However, during current stepping, the curling did not depend on deposition current density. Rather, it depended only on the amount of charge exchanged.
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