| 학회 |
한국화학공학회 |
| 학술대회 |
2012년 봄 (04/25 ~ 04/27, 제주 ICC) |
| 권호 |
18권 1호, p.865 |
| 발표분야 |
재료 |
| 제목 |
Nanocomposite Colloids Containing Magneto-Optical and Superhydrophobic Properties via Covalent Bond in Non-polar Solvent |
| 초록 |
We introduce a layer-by-layer-assembled nanocomposite via covalent bonding in a non-polar solvent. The oleic acid-stabilized quantum dots (QDs) and magnetic nanoparticles (MPs) were synthesized, and stabilizers were exchanged to 2-bromo-2-methylpropionic acid (BMPA) without any change of solvent polarity. And nanocomposite were prepared with BMPA-QDs (or BMPA-MPs) and amine-functionalized poly(amidoamine) dendrimers in a nonpolar solvent. The reaction was performed via covalent bonding between bromine and amine. It could overcome drawback of conventional processes that proceeded in aqueous solution such as a low packing density by electrostatic repulsion and reducing inherent properties of nanoparticles. It showed long-term stability in non-polar solvents. Furthermore, deposition of these colloids onto flat substrates produced a hierarchical surface morphology that exhibited superhydrophobic properties with water contact angles bigger than 150°. |
| 저자 |
윤미선, 김영훈, 조진한
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| 소속 |
고려대 |
| 키워드 |
layer-by-layer assembly; covalent bonding; functional nanoparticles; silica colloids
|
| E-Mail |
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| VOD |
VOD 보기 |
| 원문파일 |
초록 보기 |
