| 학회 |
한국고분자학회 |
| 학술대회 |
2015년 가을 (10/06 ~ 10/08, 대구컨벤션센터(EXCO)) |
| 권호 |
40권 2호 |
| 발표분야 |
대학원생 구두발표 (영어발표, 발표15분) |
| 제목 |
Three-dimensional clustering of Janus cylinders by convex curvature and hydrophobic interactions |
| 초록 |
The three-dimensional (3D) clustering of Janus cylinders is controlled by simply tuning the cylinder geometry and hydrophobic interactions. Janus cylinders were prepared by combining two approaches: micromolding and initiated chemical vapor deposition (iCVD). Hydrophilic cylinders with a flat- or convex-top curvature were prepared by micromolding. The iCVD process then provides a hydrophobic domain through the simple and precise deposition of a polymer film on the top surface. We use these Janus cylinders as building blocks to form 2D or 3D clusters via hydrophobic interactions. We investigate how cylinder geometry or degree of hydrophobic interaction affects the resulting cluster geometries. The convex-top Janus cylinders lead to 3D clustering through tip-to-tip interactions, and the flat-top Janus cylinders lead to 2D clustering through face-to-face attraction. The number of Janus cylinders in 3D clusters is tuned by controlling the degree of hydrophobic (or hydrophilic) interaction. |
| 저자 |
이창수1, 임성갑2, 유재범2, 곽무진2, 강성민1, 최창형1, 김종민1, 오명석2
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| 소속 |
1충남대, 2KAIST |
| 키워드 |
Janus microparticle; self-assembly; iCVD; micromolding
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| E-Mail |
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