2種類のメソゲン基をもつ液晶ポリウレタンの合成とスメクチック相の発現
書誌事項
- タイトル別名
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- Synthesis of Liquid Crystalline Polyurethanes consisting of Two Mesogenic Groups and The Smectic Liquid Crystal Formation
抄録
<p>In this study, polyurethans were synthesized from diisocyanate and two different mesogenic diols. Asymmetric mesogenic diol (MD2-6) and symmetric mesogenic diol (MD-66) were used for the mesogenic diol. 2,4-Tolylene diisocyanate (TDI) was used as the diisocyanate. Composition ratio of the two mesogenic diols was changed, and the effect on liquid crystal behavior was investigated by FT-IR measurement ,DSC measurement and X-ray diffraction measurement. As a result, all copolyurethanes (PU(2-6_n),n = molar ratio of MD2-6) showed liquid crystallinity. Except for composition ratio of MD2-6 around 0.1 to PU(2-6_0), only the nematic phase was formed. Composition ratio of MD2-6 around 0.1 to PU(2-6_0) was only formed smectic A phase in a relatively wide temperature range compared to the others.</p>
収録刊行物
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- 日本液晶学会討論会講演予稿集
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日本液晶学会討論会講演予稿集 2021 (0), PB12-, 2021
一般社団法人 日本液晶学会
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詳細情報 詳細情報について
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- CRID
- 1390010776348602624
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- ISSN
- 24325988
- 18803490
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
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- 抄録ライセンスフラグ
- 使用不可