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高Δn低粘度液晶的合成及性能研究
  • ISSN号：1007-2780
  • 期刊名称：《液晶与显示》
  • 时间：0
  • 分类：O753.2[理学—晶体学]
  • 作者机构：[1]中国科学院长春光学精密机械与物理研究所应用光学国家重点实验室,吉林长春130033, [2]中国科学院研究生院,北京100039, [3]武汉工业学院化学与环境工程系,湖北武汉430023
  • 相关基金：国家自然科学基金（No.50703039,No.60736042） 吉林省与中科院科技合作项目（No.2008SYH0005） 应用光学国家重点实验室主任基金
作者： 张然[1,2], 彭增辉[1], 刘永刚[1], 宣丽[1], 张智勇[3]
关键词： 光学各向异性, 粘度, 二苯乙炔, 快速响应, 液晶, birefringence, viscosity, tolane, fast response, liquid crystal
中文摘要：

利用二苯乙炔为中心基团上的核心结构,合成了多种极性较低的液晶和几种含氟液晶单体化合物,并按10%的质量分数与商用液晶进行了混配,同时制成了平行排列的液晶盒。通过旋转粘度计分别测量了混合后的液晶溶液的粘度。利用光谱型椭偏仪测量了633nm下的平行液晶盒的Δn,并且外推出了掺入的液晶单体的Δn,其结果与Vuks方程的计算结果吻合得很好。结果显示,二苯乙炔类液晶比传统的联苯类液晶的Δn有了显著提高,同时保持了相对较低的粘度,适合用于要求具有快速响应特性的液晶器件。

英文摘要：

A group of liquid crystal （LC） single compounds with low polar or fluorine substitutes, which employee tolane as their mesogenic core, were synthesized and mixed with commercial liquid crystal mixture （10% by weight）. Then, parallel-aligned liquid crystal cells were made with these mixtures. The viscosities of these mixtures were measured by rotational viscometer respectively. And the bire- fringence （Δn） of these LC cells were measured by spectroscopic ellipsometer at 633 nm. The Δn of each LC single compound was extrapolated, the results show a reasonable correlation with that calculated by Vuks equation. These tolane-type liquid crystals have remarkable higher An than the biphenyl compounds, and relative low viscosity, so should be suitable for the applications that require high speed response.

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期刊信息
  • 《液晶与显示》
  • 北大核心期刊（2011版）
  • 主管单位:中国科学院
  • 主办单位:中国科学院长春光学精密机械与物理研究所 中国光学光电子行业协会液晶分会 中国物理学会液晶分会
  • 主编：郭海成
  • 地址：长春市东南湖大路3888号
  • 邮编：130033
  • 邮箱：yjxs@ciomp.ac.cn
  • 电话：0431-86176059
  • 国际标准刊号：ISSN：1007-2780
  • 国内统一刊号：ISSN：22-1259/O4
  • 邮发代号:12-203
  • 获奖情况:
  • 中国科学论文统计源期刊,中国科学引文数据库来源期刊
  • 国内外数据库收录:
  • 俄罗斯文摘杂志,美国化学文摘（网络版）,美国剑桥科学文摘,英国科学文摘数据库,日本日本科学技术振兴机构数据库,中国北大核心期刊（2004版）,中国北大核心期刊（2008版）,中国北大核心期刊（2011版）,中国北大核心期刊（2014版）
  • 被引量:5470