Synthesis and Characterization of Anthraquinone Used as Liquid Crystal Dichroic Dyes

LI Xiao-lian; ZHANG Zong-ying; WANG Yi

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Synthesis and Characterization of Anthraquinone Used as Liquid Crystal Dichroic Dyes

Material Physics & Chemistry | 更新时间：2020-08-12

- Synthesis and Characterization of Anthraquinone Used as Liquid Crystal Dichroic Dyes
- Chinese Journal of Liquid Crystals and Displays Vol. 25, Issue 5, Pages: 646-648(2010)
- 作者机构：
  
  大连理工大学精细化工国家重点实验室,辽宁大连 116012,E-mail:lixllixl2002@yahoo.com.cn
- 作者简介：
- 基金信息：
- DOI：
  CLC： O753+.2
- Received：12 February 2010，
  
  Revised：23 April 2010，
  
  Published Online：28 September 2010，
  
  Published：20 October 2010
- 稿件说明：
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李晓莲, 张宗英, 汪意. 蒽醌彩色二向性液晶染料的合成及性能研究[J]. 液晶与显示, 2010,25(5): 646-648

LI Xiao-lian, ZHANG Zong-ying, WANG Yi. Synthesis and Characterization of Anthraquinone Used as Liquid Crystal Dichroic Dyes[J]. 液晶与显示, 2010,25(5): 646-648
李晓莲, 张宗英, 汪意. 蒽醌彩色二向性液晶染料的合成及性能研究[J]. 液晶与显示, 2010,25(5): 646-648 DOI：

LI Xiao-lian, ZHANG Zong-ying, WANG Yi. Synthesis and Characterization of Anthraquinone Used as Liquid Crystal Dichroic Dyes[J]. 液晶与显示, 2010,25(5): 646-648 DOI：

摘要

以1

5-二羟基-4

8-二硝基蒽醌为原料

通过取代、加成转位、还原、磺化、脱磺等方法

改变

位和

位部分基团

合成了1

5-二羟基-4

8-二氨基-2-(对甲氧基苯基)蒽醌液晶二色性染料

探讨了合成的蒽醌类化合物的反应条件

得到有序参数

为0.66稳定性较高的二向性染料。

Abstract

In present work

5-dihydroxy-4

8-diamino-2-(p-alkoxyphenyl) anthraquinones have been synthesized through the methods of substitution

addition indexing

reduction

sulfonation

taking off sulphur

to change partial groups and bases in

position and

position

using 1

5-dihydroxy-4

8-dinitroanthraquinone as the raw material.UV maximum is up to 580 nm

and the order parameter is 0.71

both of which can satisfy the need on properties of dichroic dyes used for guest-host liquid crystal display.

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references

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