| 학회 |
한국고분자학회 |
| 학술대회 |
2008년 가을 (10/09 ~ 10/10, 일산킨텍스) |
| 권호 |
33권 2호 |
| 발표분야 |
기능성 고분자 |
| 제목 |
UV-driven Switching of Chain Orientation and Liquid Crystal Alignment in Nanoscale Thin Films of a Novel Polyimide Bearing Stilbene Moieties. |
| 초록 |
A novel photosensitive polyimide, poly(4,4’-stilbenylene 4,4’-oxidiphthalimide) (ODPA-Stilbene PSPI) was newly synthesized. The most surprising feature of this PSPI is that the PSPI films irradiated with linear polarized ultraviolet light (LPUVL) can favorably induce a unidirectional alignment of liquid crystals (LCs) in contact with the film surface and further switch the director of the unidirectionally aligned LCs from a perpendicular direction to a parallel direction with respect to the polarization direction of LPUVL by simply controlling the exposure dose in the irradiation process. These LPUVL-irradiated films were found to provide high anchoring energy to LCs, always giving very stable, homogeneous cells with unidirectionally aligned LCs regardless of the LC alignment directions. |
| 저자 |
이택준1, 이문호1, 함석규1, 이승우2, 채복남1, 윤진환1, 김가희1, 허규용1, 진경식1, 진상우1, 박삼대1, 김동민1, 김진철1, 김경태1, 정정운1, 안병철1, 노예철1, 김승빈1
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| 소속 |
1포항공대, 2영남대 |
| 키워드 |
LCD; alignment layer; photo-reactive
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| E-Mail |
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