| 학회 | 한국고분자학회 |
| 학술대회 | 2003년 가을 (10/10 ~ 10/11, 부경대학교) |
| 권호 | 28권 2호, p.368 |
| 발표분야 | 기능성 고분자 |
| 제목 | Synthesis and characterization of high dielectric nanoparticles/polymer nanocomposites |
| 초록 | Electric permittivity of heterogeneous mixture has been actively studied because of various applications such as microelectronic device, storage material and optics. High dielectric nano particles have been synthesized by chemical method and then dispersed homogeneously into polymer matrix such as hydrogen silsesquioxane and polyimide for nano-composite. The size and shape of high dielectric particles have been controlled by the concentration of mixed surfactants and mole ratio of anionic surfactant (sodium dodecylsulfate) to cationic surfactant (cetyltrimethylammonium bromide). For stable dispersion of nano particles, surface charges have been introduced by applying various acids, alkalies and coupling agents ($\gamma$ -APS) to nano particles. The shape, size, dispersity and structure of nano particles have been analyzed by transmission electron microscopy and x-ray diffraction. Electric permittivity of nano-composites have been measured using HP 4194A impedance gain-phase analyzer and HP 8510B network analyzer from 10 MHz to 5 GHz. Especially, the effects of particle shape and size have been investigated on permittivity of nanocomposite. |
| 저자 | 강진호, 전하영, 김영철, 박찬언 |
| 소속 | 포항공과대 |
| 키워드 | high dielectric; polymer; nanocomposite |
