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二苯乙炔基异硫氰酸酯的合成与液晶性质研究
  • 期刊名称：液晶与显示
  • 时间：0
  • 页码：427-431
  • 语言：中文
  • 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
  • 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
  • 相关项目：可见－近红外宽波段快速液晶自适应系统的研究
作者： 胡立发|鲁兴海|彭增辉|刘永刚|穆全全|宣丽|姚丽双|曹召良|
关键词： 液晶, 二苯乙炔, 异硫氰酸酯, 合成, Δn, 响应时间, liquid crystals, tolane, isothiocyanate, synthesize, birefringence, response time
中文摘要：

通过先偶联后还原的方法合成了3种具有氟取代的二苯乙炔基异硫氰酸酯化合物。液晶性质测试表明，这些材料均具有较高的An值，且随着分子中7c电子共轭长度增加而变大，最大可达0．576。将这些高蛳液晶化合物溶于商品炔类液晶材料，可提高其响应速度；其中苯基二苯乙炔基异硫氰酸酯对器件响应性能的提升幅度最大。实验结果表明，二苯乙炔基异硫氰酸酯是一种具有高△n、低旋转黏度的快速液晶材料，在液晶空间光调制器件中具有一定的应用价值。

英文摘要：

Three types of LC materials with isothiocyanate tolane group were prepared via couple and electronation reaction. These LCs exhibit a high birefringence, and the An in creased with conjugation length of n-electron, the maximal value among these I.Cs was 0. 576. When these LCs were mixed in the commercial alkyne LCs respectively, the response performance of the device could be improved. These data demonstrates that the isothiocya hate tolane LCs have high An and low rotational viscosity,which can be used in the device of LC spatial modulator.

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