| 학회 |
한국고분자학회 |
| 학술대회 |
2008년 가을 (10/09 ~ 10/10, 일산킨텍스) |
| 권호 |
33권 2호 |
| 발표분야 |
기능성 고분자 |
| 제목 |
Unusual Alignment of Liquid Crystals on Rubbed Films of Polyimides with Fluorenyl Side Groups |
| 초록 |
We synthesized two polyimides (PIs), poly(4,4-(9,9-fluorenyl)diphenylene cyclobutanyltetracarboximide) (CBDA-FDA) and poly(4,4-(9,9-fluorenyl)diphenylene pyromellitimide) (PMDA-FDA), and investigated in detail the surface morphology, molecular orientation, and nematic liquid crystal (LC) alignments of rubbed CBDA-FDA and PMDA-FDA films. The rubbed CBDA-FDA film surface was found to contain microgrooves that run parallel to the rubbing direction, but was found to induce LC alignment perpendicular to the rubbing direction. In contrast, the rubbed PMDA-FDA film surface was found to contain unusual meandering microgrooves that run perpendicular to the rubbing direction. |
| 저자 |
이택준, 이문호, 함석규, 박삼대, 윤진환, 김가희, 허규용, 진경식, 진상우, 김진철, 김동민, 노예철, 안병철, 정정운, 권원상, 김경태
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| 소속 |
포항공대 |
| 키워드 |
LCD; polymer; alignment layer; rubbing; photo-reactive
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| E-Mail |
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