| 초록 |
The conducting polymer, polypyrrole(PPy), undergoes a volumetric change when its oxidation state is changed electrochemically by the application of low voltage. This volumetric change occurs due to ion movements in and out of the polymer film. However, it may be an impediment to the practical use of PPy actuator that usually requires electrolyte solution for actuation. Our research theme is focused on this problem. In this work, the construction of a new solid state CP actuator based on PPy film electrodes and a solid polymer electrolyte(SPE), polyurethane/Mg(ClO4)2, was accomplished. PPy was electrochemically polymerized with NaClO4 as a dopant. Polyurethanes were synthesized using a two-step method based on polydimethylsiloxane with different molecular weights. We constructed PPy/SPE/PPy tri-layer structure and measured the displacement. All the results obtained in this work show the feasibility of electrochemomechanical devices based on PPy and SPE film able to work in air. |
