| 학회 |
한국고분자학회 |
| 학술대회 |
2021년 가을 (10/20 ~ 10/22, 경주컨벤션센터) |
| 권호 |
46권 2호 |
| 발표분야 |
콜로이드 및 분자조립 부문위원회 Ⅰ,Ⅱ |
| 제목 |
Patchy colloidal clusters with broken symmetry |
| 초록 |
Colloidal clusters are prepared by assembling positively charged crosslinked polystyrene (PS) shell particles onto negatively charged liquid cores of swollen polymer particles. Shells at the interface of the liquid core are closely packed around the core due to interfacial wetting. By evaporating solvent, cores are solidified, and the clusters are cemented. Finally, by density gradient centrifugation, high-purity symmetric tetrahedral colloidal clusters are obtained. When silica-PS core-shell particles are swollen and served as the liquid cores, hybrid colloidal clusters are obtained. As each silica nanoparticle is relocated to the liquid core interface, broken symmetry as the silica nanoparticle is comparable in size with PS shell. The configuration of clusters is determined once shells around the liquid core is given, which depends on the size ratio of liquid core and shell. Since hybrid clusters are heavier than PS particles, they can be purified using centrifugation. |
| 저자 |
김유진1, 김재현2, 조인성3, David J. Pine4, Stefano Sacanna4, 이기라1
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| 소속 |
1포항공과대, 2Univ. of Pennsylvania, 3CRPP Bordeaux, 4New York Univ. |
| 키워드 |
colloidal cluster; self-assembly
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| E-Mail |
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