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A kind of black electrochromic polymer material and its preparation method and application

A polymer material and electrochromic technology, applied in the direction of color-changing fluorescent materials, chemical instruments and methods, etc., can solve the problems of insufficient absorption of visible light, insufficient blackness of polymers, and difficult absorption, etc., to achieve excellent electrochromic performance, The preparation method is simple and efficient, and the effect of reducing environmental pollution

Active Publication Date: 2019-09-20
SHENZHEN GUANGYI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] US20110288253A1 discloses a random conjugated copolymer, which is black or other colors in the neutral state and highly light-transmitting in the oxidized state. However, it needs to make the monomer into a metal organic compound in advance. During the preparation process It will pollute the environment and is toxic, and its black electrochromic polymer cannot fully absorb visible light at 400-500nm, resulting in the resulting polymer being not black enough, often with other hues, and based on its monomer It is difficult for the system to further increase the absorption at 400-500nm

Method used

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  • A kind of black electrochromic polymer material and its preparation method and application
  • A kind of black electrochromic polymer material and its preparation method and application
  • A kind of black electrochromic polymer material and its preparation method and application

Examples

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Embodiment 1

[0047] In this example, the polymer Black-0.25-0.23Flu was prepared through the following preparation process:

[0048]

[0049] The preparation method specifically comprises the following steps:

[0050] Add 3,3-bis(((2-ethylhexyl)oxy)methyl)-3,4-dioxo-2H-thiophene[3,4-b][1,4]dioxo to the Shrek tube Cyclo(0.32g, 1.0eq.), 4,7-dibromo[1,2,5]benzothiadiazole (0.053g, 0.25eq.), 6,8-dibromo-3,3-bis( ((2-Ethylhexyl)oxy)methyl)-3,4-dioxo-2H-thiophene[3,4-b][1,4]dioxane (0.226g, 0.52eq.), 2, 7-dibromo-9,9-dihexyl-9H-fluorene (0.082g, 0.23eq.), potassium carbonate (0.261g, 2.6eq.), pivalic acid (0.022g, 0.3eq.), palladium acetate ( 0.0033g, 0.02eq.). Evacuate for 15 minutes, then fill back with nitrogen, and repeat the evacuation and nitrogen replacement operation three times. Bubble 7 mL of N-methylpyrrolidone with nitrogen for 15 min before adding it to the Shrek tube. Heated at 120° C. and reacted for 6 hours under the protection of nitrogen. The reaction solution was pour...

Embodiment 2

[0054] In this example, the polymer Black-0.25-0.25Flu was prepared through the following preparation process:

[0055]

[0056] The preparation method specifically comprises the following steps:

[0057] Add 3,3-bis(((2-ethylhexyl)oxy)methyl)-3,4-dioxo-2H-thiophene[3,4-b][1,4]dioxo to the Shrek tube Cyclo(0.22g, 1.0eq.), 4,7-dibromo[1,2,5]benzothiadiazole (0.037g, 0.25eq.), 6,8-dibromo-3,3-bis( ((2-Ethylhexyl)oxy)methyl)-3,4-dioxo-2H-thiophene[3,4-b][1,4]dioxane (0.149g, 0.5eq.), 2, 7-dibromo-9,9-dihexyl-9H-fluorene (0.061g, 0.25eq.), potassium carbonate (0.179g, 2.6eq.), pivalic acid (0.015g, 0.3eq.), palladium acetate ( 0.0022g, 0.02eq.). Evacuate for 15 minutes, then fill back with nitrogen, and repeat the evacuation and nitrogen replacement operation three times. Bubble 7 mL of N-methylpyrrolidone with nitrogen for 15 min before adding it to the Shrek tube. Heated at 120° C. and reacted for 6 hours under the protection of nitrogen. The reaction solution was poure...

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Abstract

The invention provides a black electrochromic polymer material and a preparation method and application thereof. The black electrochromic polymer material is of the structure as shown in the formula I. Thiophene derivative monomers, 2,1,3-benzothiadiazole monomers and a fluorine-containing derivative monomer structure are introduced into the structure, and the monomer structures meet the proportional relation in a polymer so that a polymer absorption spectrum can be effectively adjusted to obtain a black polymer compound, especially, the addition of fluorine-containing derivative monomers canimprove absorption of macromolecules at the 400-500 nm position, and therefore a blacker polymer compound seen by the naked eyes can be obtained. The preparation method is simple and efficient, and the material can be obtained through one-step polymerization of the four kinds of monomers, has excellent electrochromic performance, can be used for intelligent color-changing windows, display screens,intelligent color-changing thin films, field effect transistors, organic solar cells, super capacitors and various technical schemes, and has wide application prospects.

Description

technical field [0001] The invention belongs to the field of polymer materials, and relates to a black electrochromic polymer material and a preparation method and application thereof. Background technique [0002] Electrochromic polymers have received more and more attention due to their application prospects in flexible displays, smart windows, and data storage. Among the existing electrochromic polymers, red and blue polymers are the most numerous. Among them, the black electrochromic polymer (P.M.BEAUJUGE et al.The donor-acceptor approach allows a black-to-transmissive switching polymeric electrochrome.Nat.Mater.2008,7,795; PengjieShi et al.Broadly Absorbing Black to Transmissive Switching Electrochrome Polymer .Mater.2010,22,4949-4953) Due to the need to absorb light waves in all visible light regions, its design and synthesis have always been difficult. [0003] US20110288253A1 discloses a random conjugated copolymer, which is black or other colors in the neutral sta...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G61/12C09K9/02
Inventor 游利焱
Owner SHENZHEN GUANGYI TECH CO LTD
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