Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Low-wavelength dispersibility polymerizability compound, composition of compound and application of compound

A technology of polymeric compounds and compounds, applied in the preparation of organic compounds, chemical instruments and methods, organic chemistry, etc., can solve problems such as lack of practicability, increased polymer film thickness, and increased cost

Active Publication Date: 2013-01-30
ANQING FEIKAI NEW MATERIAL CO LTD
View PDF12 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It has been found that two rod-like groups with low polarizability will lead to lower n e , and the highly polarizable bridge part will lead to higher n o , resulting in a birefringence of the final liquid crystal mixture (Δn=n e -n o ) is significantly reduced, which leads to a significant increase in the thickness of the polymer film when the desired optical effect is achieved, which increases the amount of polymerizable liquid crystal mixture used, significantly increases the cost, and is not practical

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
  • Low-wavelength dispersibility polymerizability compound, composition of compound and application of compound
  • Low-wavelength dispersibility polymerizability compound, composition of compound and application of compound
  • Low-wavelength dispersibility polymerizability compound, composition of compound and application of compound

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0073] Example 1: Polymeric compound

[0074] The synthetic route for preparing compound (Ia-1-1) is shown below:

[0075]

[0076] Its specific process steps are as follows :

[0077] 1) Synthesis of the compound of formula 1.1

[0078] Add 62g of 4-iodobenzoic acid, 20g of 2,3-dicyanohydroquinone, a catalytic amount of DMAP (4-dimethylaminopyridine) and 400ml of DCM (dichloromethane) into a 1000ml three-necked flask. Add 60 g of DCC (1,3-dicyclohexylcarbodiimide) dropwise to the above solution at room temperature, and keep the reaction at room temperature for 5 hours. Filtration, washing, drying, rotary evaporation to remove the solvent, and column chromatography yielded 45 g of the product, which was a compound of formula (1.1).

[0079] 2) Synthesis of compounds of formula (1.2)

[0080] The synthesis method of the compound of formula (1.2) has been described in WO2010020312.

[0081] 3) Synthetic compound of formula (1)

[0082] Add the compound of form...

Embodiment 2

[0098] Example 2: Polymerizable composition and optically anisotropic body

[0099] The structure of the commercially available polymeric liquid crystal compound RM257 (Merck KgaA, Darmstadt, Germany) is shown in the figure below, and the Δn of the compound 450 / Δn 546 About 1.115.

[0100]

[0101] A polymeric composition PL-1 was prepared, wherein RM257 accounted for 50% by weight, and the compound (Ia-1-1) of Example 1 accounted for 50% by weight. A homogeneous polymerizable composition PL-1 was obtained after weighing, heating, melting and stirring.

[0102] On a glass substrate with a rubbed polyimide layer, the polymeric composition PL-1 was spin-coated at 1500 rpm. The coated glass substrate was placed on a hot plate at 60° C. for 10 minutes to achieve uniform horizontal alignment of the polymerizable composition. Then irradiate with ultraviolet light with a wavelength of 365nm, and the light intensity is 20mW / cm 2 , the irradiation time was 1 minute, and an o...

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

PropertyMeasurementUnit
melting pointaaaaaaaaaa
melting pointaaaaaaaaaa
Login to View More

Abstract

The invention provides a polymerizability compound with a general formula I, a polymerizability composition containing the compound and application of the compound in an optical anisotropy body. M1 and M2 show polymerizability liquid crystal groups with low polarization capability. The polymerizability compound can provide big birefringence while providing low-wavelength dispersibility, accordingly, anticipant optical effects can be achieved by using fewer materials, and enough application prospects are provided.

Description

technical field [0001] The present invention relates to a polymeric compound with low wavelength dispersion and its composition and application. Background technique [0002] Wavelength dispersion is the different effects of the medium on light of different wavelengths. The higher the wavelength dispersion, the greater the difference between the light of different wavelengths after passing through the medium. Optical compensation must be used to make up for this difference. Therefore, in some applications that require no chromatic aberration, low wavelength dispersion is necessary. [0003] In some applications using the principle of birefringence, wavelength dispersion is usually defined as the wavelength dispersion of birefringence, or the wavelength dispersion of optical retardation. A common expression is to measure the optical retardation (Re) or birefringence (Δn) at 450nm and 546nm respectively, and then divide the two to get the wavelength dispersion Re 450 / Re 54...

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 Applications(China)
IPC IPC(8): C07C255/55C07C253/30C08F20/36C09K19/38
Inventor 宋晓龙王盼盼
Owner ANQING FEIKAI NEW MATERIAL CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com