| 학회 |
한국고분자학회 |
| 학술대회 |
2013년 가을 (10/11 ~ 10/12, 창원컨벤션센터) |
| 권호 |
38권 2호 |
| 발표분야 |
Molecular Self-Assembly from Small Molecules and Liquid Crystals to Macromolecules |
| 제목 |
The peculiar structures induced from helical nanofilament confined in various surface topographies |
| 초록 |
The bent-core liquid crystal (LC) molecules are a topic tempting to researchers in that formation of a chiral superstructure which is helical nanofilament (HNF) is driven by simple self-assembly of LC molecules in “banana” or B phases. Here, we report that surface topography could affect not only suppression of forming HNF but also generation of peculiar structures that are unachievable by general self-assembly of LC molecules. Various surface topographies were fabricated using anodic aluminum oxide (AAO) synthesized by electrochemical reaction. Through etching of alumina part in AAO and replica process, various surface topographies were acquired for concave and convex topographies respectively and LC molecules dissolved in organic solvent were spin-casted on these surfaces for thin thickness. Scanning electron microscopy (SEM) reveals that peculiar structures such as barrel-like and knit-like structures form while formation of HNF observed in bulk is suppressed. |
| 저자 |
류성호1, 윤동기1, Dong Chen2, Eva Korblova2, David M. Walba2, Noel A. Clark2
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| 소속 |
1한국과학기술원, 2Univ. of Colorado |
| 키워드 |
Liquid crystal; Helical nanofilament; Self-assembly; Surface topography; confinement; anodic aluminum oxide
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| E-Mail |
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