| 학회 | 한국고분자학회 |
| 학술대회 | 2005년 가을 (10/13 ~ 10/14, 제주 ICC) |
| 권호 | 30권 2호 |
| 발표분야 | 기능성 고분자 |
| 제목 | Investigation of CP Actuator based on Chemically Synthesized Polypyrrole and Solid Polymer Electrolyte |
| 초록 | Conducting polymers, such as polyanilines, polypyrroles, and polythiophenes, have attracted attention around the world as new electrochemical actuator materials. They have attractive properties such as being lightweight and having low cost, high stress generation, low operating voltages, and stable oxidation state. Actuation is achieved by utilizing an electrochemical reaction to generate mechanical motion. Volume change of a conducting polymer during its redox process is thought to be achieved by electrolyte ion transport in and out of the polymer, solvent transport in and out of the polymer, polymer chain configuration changes, and electrostatic expulsion between polymer chains. In this paper, we have studied a new CP actuator, fully polymeric, assembled with two PPy film electrodes and a solid polymer electrolyte (SPE), polyurethane/Mg(ClO4)2. Polyurethanes (PUs) were synthesized from 4,4'-methylene bis(phenyl isocyanate) (MDI), 1,4-butanediol (1,4-BD) and three types of polyols. Chemically synthesized PPy was characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), and 4-point probe. The morphology and ionic conductivity of these electrolytes were studied by using differential scanning calorimetry (DSC), Fourier transform-infrared spectroscopy (FT-IR) and alternative current (AC) impedance measurements. To find the proper thickness of PPy coating layer for actuation, we measured the displacement of actuators according to the thickness of PPy coating layer. And, the displacement of all actuators was discussed in connection with the properties of SPE and PPy. |
| 저자 | 하정민, 최화정, 정해도, 이장우, 조남주 |
| 소속 | 부산대 |
| 키워드 | polypyrrole; actuator; solid polymer electrolyte; conducting polymer |
