| 학회 | 한국고분자학회 |
| 학술대회 | 2005년 가을 (10/13 ~ 10/14, 제주 ICC) |
| 권호 | 30권 2호 |
| 발표분야 | 자기조립형 기능성재료 |
| 제목 | Molecular Ordering of Supramolecule in the Confined Area |
| 초록 | We have investigated the behavior of a linear supramolecular material having perfluorinated chain. Synchrotron X-ray diffraction, polarized light microscopy results show this material exhibits lamellar structure upon heating and cooling. This structure is changed by substrates; between sandwiched hydrophilic surfaces there appears a very long range line structure, while without cover various-size toroidal defects were found. Interestingly, in confined area with similar surface condition above, new phase was observed by using scattering and microscope method. We were able to generate defect domains that are not only nearly uniform in size but also arranged in quasi-2D ordered patterns without cover. Atomic force microscopy measurements revealed that defects have regular toroidal topology which are connected every single spot. With sandwiched confined surfaces, very uniform Rugby ball morphologies were appeared regularly with very long range, which have undulation periodically. This method opens the possibility for exploiting the unique optical and rheological properties associated with novel behaviors to making new materials. For example, the control of the shape, size, and spatial arrangement of the defects and very uniformly repeated morphology at the mesoscale suggests applications in patterning, bio-membrane, and template. From these, we expect that desired structure can be obtained by control substrate conditions. |
| 저자 | 윤동기, 김윤호, 정희태 |
| 소속 | 한국과학기술원 생명화학공학과 |
| 키워드 | Supramolecule; orientation; confiened area |
