| 학회 | 한국고분자학회 |
| 학술대회 | 2005년 봄 (04/14 ~ 04/15, 전경련회관) |
| 권호 | 30권 1호, p.406 |
| 발표분야 | 기능성 고분자 |
| 제목 | Actuation Behavior of the Solid-state CP Actuator based on Polypyrrole and Solid Polymer Electrolyte |
| 초록 | The oxidation and reduction of conducting polymers can be accompanied by significant changes in the volume of the polymer. The switching of a conducting polymer between the oxidized and the reduced states is a reversible process that can be driven electrochemically by small changes in cell voltage. This way of controlling the volume of a conjugated polymer is being investigated as the basis of a new generation of actuators. In this work, we have studied a new CP actuator, fully polymeric, assembled with two Polypyrrole 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 such as poly(ethylene glycol) (PEG), poly(propylene glycol) (PPG) and PEG/PPG copolymer. And chemically synthesized PPy was characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD) and 4-probe technique. The morphology, ionic conductivity and tensile properties of these electrolytes were studied by using differential scanning calorimetry (DSC), Fourier transform-infrared spectroscopy (FT-IR), alternative current (AC) impedance measurements and universal tensile meter (UTM). 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 (See Fig. 1). And Fig. 2 shows the displacements of actuator according to salt concentration in SPEs. The displacement of these actuators was discussed in connection with the properties of SPE and PPy. Fig. 1. Displacement of an actuator according to the Fig. 2. Displacements of actuators according to thickness of PPy coating layer salt concentration in SPEs |
| 저자 | 강혜란, 최화정, 정해도, 이장우, 조남주 |
| 소속 | 부산대 |
| 키워드 | CP actuator; PPy; polyurethane |
