화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2008년 가을 (10/09 ~ 10/10, 일산킨텍스)
권호 33권 2호
발표분야 기능성 고분자
제목 Conducting Core-Shell Poly(Styrene/Pyrrole) Nanoparticles prepared by Fe3+-Catalyzed Oxidative Polymerization and Emulsifier-Free Emulsion Polymerization
초록 We tried to reduce a cost and an effort to synthesize the core-shell poly(St/Py) nanoparticles by using one-step reaction. The core-shell structure of the resulting nanoparticles was proved by SEM and TEM analysis. Synthetic mechanism of core-shell poly(St/Py) nanoparticles was proposed by time-evolution SEM analysis. The size of the resulting nanoparticles was increased as the concentration of NaSS decreased, and it was proved by SEM and TEM analysis. Surface charge of the nanoparticles was changed according to the concentration of NaSS and measured by Zeta-potential analysis. The resulting nanoparticles showed high conductivity from 0.11 S/cm to 8.67 S/cm after doping and drying. Doping state of self-doped core-shell poly(St/Py) nanoparticles with NaSS as a dopant was also studied in this study. This new strategy is universal for the synthesis of many other conjugated materials or composite particles with controlled morphology.
저자 이동규, 이선종, 이정민, 김중현
소속 연세대
키워드 Conducting polymer; Polypyrrole; Core-Shell; Oxidative polymerization; Emulsifier-free emlusion polymerization
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