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PA19 Does the Biaxial Nematic Exist in Bent-Core Mesogens?
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- Miyake I.
- Department of Organic and Polymeric Materials, Tokyo Institute of Technology
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- Nakata M.
- Department of Organic and Polymeric Materials, Tokyo Institute of Technology
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- Takanishi Y.
- Department of Organic and Polymeric Materials, Tokyo Institute of Technology
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- Ishikawa K.
- Department of Organic and Polymeric Materials, Tokyo Institute of Technology
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- Watanabe J.
- Department of Organic and Polymeric Materials, Tokyo Institute of Technology
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- Takezoe H.
- Department of Organic and Polymeric Materials, Tokyo Institute of Technology
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- Lee C. H.
- Chemical Resources Laboratory, Tokyo Institute of Technology
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- Yamamoto T.
- Chemical Resources Laboratory, Tokyo Institute of Technology
Bibliographic Information
- Other Title
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- PA19 屈曲型液晶分子のネマチック相における二軸性の可能性(物理・物性)
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Description
If the bent-core molecules exhibit nematic phases, they could have biaxiality due to their molecular shapes. Recently a liquid crystal material containing a thiazole unit as a central core was synthesized and found to exhibit an interesting nematic phase. Under an optical microscope, the Schlieren textures were observed in the nematic phase of a homeotropically aligned cell. In the nematic phase range, we observed a spontaneous orientational change associated with characteristic texture changes, which may provide the information of the nature of the nematic phase. Two reflections were observed at a small angle corresponding to a layer periodicity even in the nematic phase, suggesting the existence of a cybotactic formation of the layer structure. In aligned samples, each peak splits into two. Based on these experimental observations, the possible existence of the biaxial nematic phase will be discussed.
Journal
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- Proceedings of Japanese Liquid Crystal Society Annual meeting
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Proceedings of Japanese Liquid Crystal Society Annual meeting 2002 (0), 317-318, 2002
THE JAPANESE LIQUID CRYSTAL SOCIETY
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Details 詳細情報について
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- CRID
- 1390282680664164736
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- NII Article ID
- 110001482085
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- ISSN
- 24325988
- 18803490
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- Text Lang
- ja
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- Data Source
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- JaLC
- CiNii Articles
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- Abstract License Flag
- Disallowed