| 학회 | 한국고분자학회 |
| 학술대회 | 2004년 가을 (10/08 ~ 10/09, 경북대학교) |
| 권호 | 29권 2호, p.560 |
| 발표분야 | 복합재료 |
| 제목 | Preparation of hybrid nanoparticles with high zeta potential in nonpolar solvents |
| 초록 | Encapsulation of inorganic nanoparticles in a polymer shell can not only help to prevent their agglomeration but donate versatile ability according to using monomer with various functional groups in organic media. This study, by miniemulsion polymerization1, was investigated to modify dispersion quality (i.e., size and stability) and high electromobility with monomer including siloxane, fluorinate, highly molecule polyethylene glycol such as hydrophobic comonomer, respectively. The surface modified inorganic colloids were encapsulated with various polymer; polystyrene as an optically transparent material, and above comonomers as a macromolecule stabilizer. In this study, it was found that the hybrid nanoparticles possessed the positive zeta potential ranging from 100 mV to 180 mV. Furthermore, it was observed that the electrophoretic mobility of nanoparticles were highly dependent on the types of nonpolar medium. The effective encapsulation of TiO2 with polymers was examined in detail morphology along with surface functionality (그림1). Fig 1. TEM micrographs of pristine TiO2 nanopartiles and encapsulation of TiO2 with polymer prepared using polyethylene glycol methylmethacrylate (This bar denotes 500nm in each case). Reference 1. M. Antonietti and K. Landfester, Polymer Science, 27, 689(2002) |
| 저자 | 김미선1, 이준영1, 김준경2, 이상수2 |
| 소속 | 1성균관대, 2한국과학기술(연) |
| 키워드 | hybrid nanoparticle; miniemulsion polymerization; zeta potential; nonpolar solvent |
