| 학회 |
한국고분자학회 |
| 학술대회 |
2014년 가을 (10/06 ~ 10/08, 제주 ICC) |
| 권호 |
39권 2호 |
| 발표분야 |
X-ray & Neutron Scattering for Polymer Science |
| 제목 |
Perturbed helical nano-structures of liquid crystals in nanoconfinement |
| 초록 |
The helical nanofilaments (HNFs) have attracted much interest because of their unique optical properties, but there have been many hurdles to use these for the practical applications due to the structural complexity. Here we demonstrate that the molecular configuration and layer conformation of modulated HNF (HNFs(mod)) can be studied using physicochemical confinement system. The layer directions affected by the chemical affinity between the mesogen and surface were drastically controlled in surface-modified nanochannels. Furthermore, an in situ experiment using grazing-incidence X-ray diffraction (GIXD) was carried out to investigate in detail the structural evolution through thermal transitions. The results demonstrate that the HNF(mod) structure can be perfectly controlled for functional HNF device applications, and a combined system with chemical and physical confinement effects will be helpful for better understanding of the fundamentals of soft matter. |
| 저자 |
이선희1, 김한임1, 신태주2, 이상복3, 윤동기1
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| 소속 |
1한국과학기술원, 2포항가속기(연), 3Univ. of Maryland |
| 키워드 |
liquid crystal; modulation; helical nanofilament; porous AAO
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| E-Mail |
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