| Project/Area Number |
11650933
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
高分子構造・物性(含繊維)
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| Research Institution | Himeji Institute of technology |
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Principal Investigator |
KAWATSUKI Nobuhiro Himeji Institute of Technology, Faculty of Engineering, Associated Professor, 工学部, 助教授 (60271201)
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| Project Period (FY) |
1999 – 2000
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| Project Status |
Completed (Fiscal Year 2000)
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| Budget Amount *help |
¥2,600,000 (Direct Cost: ¥2,600,000)
Fiscal Year 2000: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 1999: ¥1,800,000 (Direct Cost: ¥1,800,000)
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| Keywords | Photoreaction / Photoalignment / Polymer Liquid Crystal / Liquid Crystal Display / Photo-cross-linking / 偏光 / 液晶 / 配向フィルム |
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| Research Abstract |
We investigated photorientation of polymer liquid crystal films and alignment control of liquid crystal (LC) on photo-cross-linkable polymer films using a slantwise nonpolarized ultraviolet (NP-UV) light irradiation. A polymer having several kinds of photoreactive mesogenic groups, such as 6-[4-(4'-methoxycinnamoyloxy) biphenyloxy] hexyl side-group, anthracene-containing side group or coumarin containing side groups. In addition, copolymers with methacrylate derivatives comprising photoinactive side-groups were also synthesized and used for the experiments. We clarified that the mesogenic side groups could align by the use of non polarized UV light as well as the sue of polarized UV light. Further, the LC aligned homogeneously or homeotropically with tilt angles, and the alignment behavior was dependent on the type of the (co) polymers and LCs.
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