| 학회 | 한국화학공학회 |
| 학술대회 | 2011년 가을 (10/26 ~ 10/28, 송도컨벤시아) |
| 권호 | 17권 2호, p.1256 |
| 발표분야 | 공업화학 |
| 제목 | Preparation and chracterization of Janussilica particles using PS particle barrier |
| 초록 | In nanoparticle-based field, the chemical composition of surfacehave effects onthe properties of particles and the performances of applications. The surface modification is the one of the control methods onto the properties of nanoparticles. In this research,Janus silica particles were prepared byusing monolayer of PS(polystyrene) particles as barrier.PS particles were arrayedby spin coating of PS suspensionon the silicon wafer, andsilica suspension was dropped and coated on the PS particle layer. After heating the silica/PS/wafer sample at200 °C for20 min, the barrier was formedwithsome partof silica particles buried. The introduction of silane compounds on the unblocked surface of the silica particles were performed in DI water, ethanol, and ammonium hydroxide mixture solution at 40 °C for 12 hr. During the reaction, the modifying compounds were added to the solution using micro feed pump. After the reaction, PS barrier was removed and the Janussilica particles were gained. The silica particles were characterized by SEM, 13C solid-state NMR, water contact angle (WCA) measurements. |
| 저자 | 이창훈, 정원근, 김중연, 정현철, 김성현 |
| 소속 | 고려대 |
| 키워드 | silica particle; multifunctional surface |
| 원문파일 | 초록 보기 |
