| 학회 |
한국고분자학회 |
| 학술대회 |
2011년 가을 (10/06 ~ 10/07, 김대중 컨벤션센터) |
| 권호 |
36권 2호 |
| 발표분야 |
대학원생 구두발표 |
| 제목 |
Multifunctional Nanocomposites Derived from Covalent Bond-Induced Layer-by-Layer Assembly in Non-polar Solvent |
| 초록 |
We introduce a layer-by-layer-assembled multifunctional nanocomposite on colloids via a nucleophilic substitution reaction (NSR). First, 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 fabricated with BMPA-QDs (or BMPA-MPs) and amine-functionalized poly(amidoamine) (PAMA) dendrimers in a nonpolar solvent. The reaction was performed via NSR between -Br and -NH2. These could overcome disadvantages of conventional processes that proceeded in water such as a low packing density by electrostatic repulsion and reducing inherent properties of nanoparticles. These showed long-term stability of their inherent properties in nonpolar solvents. Furthermore, assembly of these onto flat substrates produced a hierarchical structure that exhibited superhydrophobic properties with water contact angles bigger than 150°. |
| 저자 |
윤미선, 김영훈, 조진한
|
| 소속 |
고려대 |
| 키워드 |
layer-by-layer assembly; covalent bond; magnetic nanoparticles; quantum dot; colloidal substrate
|
| E-Mail |
|
