Liquid crystal reactive monomer and liquid crystal panel
A technology of active monomers and liquid crystal panels, applied in liquid crystal materials, nonlinear optics, optics, etc., can solve problems such as image retention and shorten curing time, and achieve the effects of improving solubility, shortening curing time, and increasing curing speed
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0064] Please see attached figure 1 , with figure 1 Shown is the liquid crystal panel of the present invention, and described liquid crystal panel comprises:
[0065] A first transparent substrate 101 with a first alignment film 201; a second transparent substrate 102 with a second alignment film 202; and a liquid crystal composition filled between the first transparent substrate 101 and the second transparent substrate 102 between, and the liquid crystal composition is in contact with the first and second alignment films, wherein the liquid crystal composition includes liquid crystal molecules 301 and at least one liquid crystal active monomer 302, the general formula of the liquid crystal active monomer 302 is Ⅲ, Ⅳ or Ⅴ said.
[0066] Formula III, wherein,
[0067] X is selected from H or F;
[0068] p or q is the number of X groups, p or q are respectively selected from integers greater than or equal to 0 (such as 0, 1, 2...), and p+q≥1;
[0069] w or z are r...
Embodiment 2
[0078] This embodiment provides a liquid crystal active monomer whose structural formula is , the preparation path is:
[0079] .
[0080] Concrete preparation steps are:
[0081] (A) Preparation of intermediate (1)
[0082] Dissolve 10 mmol 2,6-dihydroxyanthraquinone (2,6-Dihydroxyanthraquinone) in 150 mL of 2.0 N Na 2 CO 3 solution, slowly add 127 mmol NaBH 4 added to the reaction. The reaction was stirred at room temperature for 3 hours, and after gas evolution ceased, the reaction was heated to reflux for 10 minutes. After cooling, concentrated HCl was slowly added dropwise to acidify the reaction. The precipitate was collected by filtration and dissolved with acetone (acetone), and the solution was MgSO 4 Remove water and filter with air, then concentrate and vacuum to obtain a reddish-brown solid, which is finally purified by silica gel column chromatography with EA / Hexane = 1 / 1, and recrystallized with ethanol to obtain light reddish-brown crystals ;
[...
Embodiment 3
[0086] This embodiment provides a liquid crystal active monomer whose structural formula is , the preparation path is:
[0087] .
[0088] The specific steps of preparation are:
[0089] (A) Preparation of intermediate (3)
[0090] 10 mmol of intermediate (1) was dissolved in 150 mL of 2.0 N KOH / THF solution, and 5 mmol of 2-bromoethanol (2-bromoethanol) was slowly added to the reaction. The reaction was heated to reflux for 24 hours. After cooling, concentrated HCl was slowly added dropwise to acidify the reaction. Extracted with EA and water, with MgSO 4 Remove water and filter with air, then concentrate and vacuum to obtain a yellow liquid, and finally purify by silica gel column chromatography with EA / Hexane = 1 / 1, recrystallize with ethanol to obtain a light yellow liquid.
[0091] (B) Preparation of target product
[0092] Put 10 mmol of the intermediate (3) into a 250 mL double-necked bottle, pump it with a vacuum deoxygenation and water removal device, an...
PUM
Login to View More Abstract
Description
Claims
Application Information
Login to View More