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学科主题: 氟化学
题名: 4-多氟烷氧基苯甲酸4-多氟烷氧基酰基苯酚酯的合成和相变研究
其他题名: Synthesis and mesomorphic properties of 3-polyfluoroalkoxycarbonylphenyl4-polyfluoroalkoxybenzoates
作者: 王侃 ; 杨永刚 ; 闻建勋
刊名: 液晶与显示
发表日期: 2002-01-01
卷: 17, 期:1, 页:6-11
部门归属: 中国科学院上海有机化学研究所高分子材料研究室
摘要: 介绍和总结了在边界条件影响很大的受限胆甾相和聚合物分散小分子胆舀相液晶(PDCLC)两种情况下,外电场对负性介电常数各向异性的小分子胆甾相液晶的作用。前者的研究通过在不变的螺距p情况下改变液晶盒厚度d与外电场电压值E,发现了规律性变化的液晶相的相态结构。而对PDCLC的研究中,通过平行和垂直于电场方向的观察,得到了胆甾相变化与外加电压的具体关系、以及在彩色液品显示上的应用。
英文摘要: A series of 4(polyfluoroalkoxycarbonyl)phenyl 4-(17-chloro-12,12,13,13,14,14,15,15,16,16,17,17-dodecafluoroheptadecaoxy)benzoate were prepared. Their mesomorphic properties were observed and measured by optical polarizing microscopy and DSC. The results show that when the other fluorinated alkyl chain was short, the sample exhibited enantiotropic smectic A phase, but monotropic smectic A and smectic C phases were exhibited jby these samples when the fluorinated alkyl chain became longer, at last, smectic A phase disappeared and only monotropic smectic C phase was observed.
语种: 中文
内容类型: 期刊论文
URI标识: http://ir.sioc.ac.cn/handle/331003/21653
Appears in Collections:中科院有机氟化学重点实验室_期刊论文

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Recommended Citation:
王侃,杨永刚,闻建勋. 4-多氟烷氧基苯甲酸4-多氟烷氧基酰基苯酚酯的合成和相变研究[J]. 液晶与显示,2002,17(1):6-11.
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