A method for regulating the liquid crystal interval of conventional liquid crystal molecules with ultra-long rod-shaped small liquid crystal molecules

A technology of liquid crystal molecules and small molecules, which is applied in the field of materials, can solve problems such as not being able to meet the comprehensive needs of display, and achieve the effect of simple and easy methods

Active Publication Date: 2021-05-25
XIANGTAN UNIV
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For a single liquid crystal, no matter how superior its performance is, it cannot meet the comprehensive needs of display.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A method for regulating the liquid crystal interval of conventional liquid crystal molecules with ultra-long rod-shaped small liquid crystal molecules
  • A method for regulating the liquid crystal interval of conventional liquid crystal molecules with ultra-long rod-shaped small liquid crystal molecules
  • A method for regulating the liquid crystal interval of conventional liquid crystal molecules with ultra-long rod-shaped small liquid crystal molecules

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A method for preparing an ultra-long rod-shaped bisazobenzene liquid crystal small molecule and regulating the interval of 5CB and 8CB liquid crystal through the method, comprising the following steps:

[0036] (1) Preparation of bisazobenzene liquid crystal small molecules:

[0037] Raw materials: acetaminophen, 1-bromooctane, acetone, anhydrous potassium carbonate, anhydrous ethanol, sodium hydroxide, potassium nitrite, phenol, hydrochloric acid, terephthalic acid, thionyl chloride, tetrahydrofuran (THF).

[0038] Catalyst: Triethylamine (TEA)

[0039] Take terephthalic acid (1.2g, 7.22mmol), dissolve it in 30ml of thionyl chloride (SOCl) 2 ) in a 100 mL round-bottomed flask at 60° C. to stir the reaction until clear. The reaction solution was spin-dried, and then 30 ml of purified THF was added to obtain a reaction solution of acid chloride. The intermediate 4-(4'-hydroxy)octyloxyazobenzene (4.29g, 13.10mmol), 60ml of purified THF and purified triethylamine (2.12g...

Embodiment 2

[0050] A method for preparing an ultra-long rod-shaped double-naphthalene liquid crystal small molecule and regulating the interval of 5CB and 8CB liquid crystal through the same, comprising the following steps:

[0051] (1) Preparation of double naphthalene liquid crystal small molecules:

[0052] Starting materials: 1-bromooctane, anhydrous potassium carbonate, acetone, 6-(4-hydroxyphenyl)-2-naphthol, vinyl terephthalic acid, thionyl chloride, tetrahydrofuran (THF).

[0053] Catalyst: Triethylamine (TEA)

[0054] Take vinyl terephthalic acid (1.2 g, 6.25 mmol), dissolve it in 30 ml of thionyl chloride (SOCl) 2 ) in a 100 mL round-bottomed flask at 60° C. to stir the reaction until clear. The reaction solution was spin-dried, and then 30 ml of purified THF was added to obtain a reaction solution of acid chloride. The intermediate 6-(4-octyloxyphenyl)-2-naphthol (5.47 g, 15.72 mmol), 80 ml of purified THF and purified triethylamine (2.12 g, 20.96 mmol) were sequentially add...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a method for preparing ultra-long rod-shaped small liquid crystal molecules and regulating the liquid crystal interval of conventional liquid crystal molecules through the method. First, a class of ultra-long rod-shaped small liquid crystal molecules are synthesized, and the liquid crystal phase does not disappear after the small molecules are melted until they are decomposed. Because of its high liquid crystal temperature, it can be used to regulate the liquid crystal interval of conventional liquid crystal molecules. Here we blended 5CB and 8CB with different mass fractions of ultra-long rod-shaped small liquid crystal molecules, and found that with the content of ultra-long rod-shaped small molecules, the liquid crystal interval also changed greatly. The ultra-long rod-shaped small liquid crystal molecules obtained by the present invention have unique optical properties and superior characteristics in optical storage, optical holography, and optical information processing, and thus have potential application values ​​in related fields such as electronics and biomedicine.

Description

technical field [0001] The invention relates to a method for preparing an ultra-long rod-shaped liquid crystal small molecule and regulating the liquid crystal interval of conventional liquid crystal molecules through the method, belonging to the technical field of materials. Background technique [0002] Nematic liquid crystal molecules have long-range order, that is, rod-shaped liquid crystal molecules tend to be aligned parallel to each other, and are widely used in liquid crystal displays and other fields. Liquid crystal materials are the basis of liquid crystal display, and the emergence of new liquid crystal materials can promote the transformation of liquid crystal display modes. For a single liquid crystal, no matter how superior its performance is in some aspects, it cannot meet the comprehensive needs of display. One of the commonly used methods is to add various components with special properties to the host liquid crystal material, such as low viscosity componen...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(China)
IPC IPC(8): C09K19/24C09K19/20
CPCC09K19/2021C09K19/24
Inventor 谢鹤楼陈黄匡泽洋陶磊杨龙虎
Owner XIANGTAN UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap