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Multifunctional network polymer and film, preparation method and application of the film in electrochromic or electroluminescence

A polymer thin film, multi-functional technology, applied in the direction of fluorescence/phosphorescence, electrochemical variables of materials, chemical instruments and methods, etc., can solve the problems of poor processability and limitations of polyaniline

Active Publication Date: 2020-08-07
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the large conjugated structure and strong hydrogen bonding, polyaniline is insoluble and infusible, and its processability is poor, which limits its application in electrochromic.

Method used

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  • Multifunctional network polymer and film, preparation method and application of the film in electrochromic or electroluminescence
  • Multifunctional network polymer and film, preparation method and application of the film in electrochromic or electroluminescence
  • Multifunctional network polymer and film, preparation method and application of the film in electrochromic or electroluminescence

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Dissolve 0.9895 g (4 mmol) of monomer isocyanatopropyl triethoxysilane and 1.4657 g (4 mmol) of aniline tetramer in 10 mL of dimethylacetamide, and stir electromagnetically for 1 hour at room temperature under nitrogen atmosphere to obtain Solution A1. 3.9579g (16mmol) of monomer isocyanatopropyltriethoxysilane and 5.5749g (16mmol) of monomer 9,9'-bis(4-aminophenyl)fluorene were dissolved in 30mL of dimethylacetamide, Under nitrogen atmosphere and electromagnetic stirring at 80°C for 2 hours, solution B1 was obtained.

[0042] The solution A1 and the solution B1 were completely mixed and stirred at room temperature under nitrogen protection for 1 hour to obtain a solution C1, and then the concentration was adjusted to 0.20 g / mL with dimethylacetamide. The 1.2cm × 5.5cm ITO substrate (for the preparation of electrochromic and electronically controlled fluorescent working electrodes) was ultrasonically cleaned twice in dichloromethane, acetone, distilled water, and absol...

Embodiment 2

[0044] Dissolve 0.7421 g (3 mmol) of monomer isocyanatopropyl triethoxysilane and 1.0993 g (3 mmol) of aniline tetramer in 5 mL of dimethylacetamide, and stir electromagnetically for 1 hour at room temperature under nitrogen atmosphere to obtain Solution A2. Dissolve 2.9684g (12mmol) of monomer isocyanatopropyltriethoxysilane and 2.1747g (12mmol) of monomer 2-aminofluorene in 15mL of dimethylacetamide, stir electromagnetically at 80°C under nitrogen atmosphere for 2 hours to obtain solution B2.

[0045] The solution A2 and the solution B2 were completely mixed and stirred at room temperature under nitrogen protection for 1 hour to obtain the solution C2, and then the concentration was adjusted to 0.20 g / mL with dimethylacetamide. The 1.2cm × 5.5cm ITO substrate (for the preparation of electrochromic and electronically controlled fluorescent working electrodes) was ultrasonically cleaned twice in dichloromethane, acetone, distilled water, and absolute ethanol, respectively, fo...

Embodiment 3

[0047] Dissolve 0.4947g (2mmol) of monomer isocyanatopropyltriethoxysilane and 0.7320g (2mmol) of aniline tetramer in 5mL of dimethylacetamide, stir electromagnetically for 1 hour at room temperature under nitrogen atmosphere to obtain Solution A3. Dissolve 1.9789 g (8 mmol) of monomer isocyanatopropyltriethoxysilane and 1.5459 g (8 mmol) of monomer 1-aminoanthracene in 15 mL of dimethylacetamide, and stir electromagnetically for 1 at 80°C under nitrogen atmosphere. hours to obtain solution B3.

[0048] Completely mix solution A3 and solution B3 and stir under nitrogen protection at room temperature for 0.5 hours to obtain solution C3, and then adjust the concentration to 0.20 g / mL with dimethylacetamide. The 1.2cm × 5.5cm ITO substrate (for the preparation of electrochromic and electronically controlled fluorescent working electrodes) was ultrasonically cleaned twice in dichloromethane, acetone, distilled water, and absolute ethanol, respectively, for 3 minutes each time, an...

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Abstract

The invention discloses a multifunctional network polymer, a membrane, a preparation method of the multifunctional network polymer membrane and application of the membrane in the aspect of electrochromism or electronic control fluorescence and belongs to the field of functional high polymer materials. The preparation method comprises the following steps of firstly, utilizing isocyanatopropyltriethoxysilane to react with aniline tetramer and 9, 9'-bis(4-aminophenyl) fluorene respectively to obtain two functional alkoxysilane monomers A and B capable of being hydrolized and crosslinked, preparing a mixture of the monomers into a solution with a proper concentration, transferring the two monomers onto an indium tin oxide conductive glass substrate subjected to hydrophilic treatment through adispensing manner, and then enabling the two monomers to generate hydrolyzing and crosslinking under the acid condition with a cyclic voltammetry to obtain the multifunctional network polymer membrane. The three-dimensional network polymer formed by hydrolyzing and crosslinking of the two monomers has better size stability and oxidative decomposition resistance effect, fully embodies a simple andefficient green chemical theory, has double properties of electrochromism and electronic control fluorescence and has a wide application prospect.

Description

technical field [0001] The invention belongs to the technical field of functional polymer materials, and in particular relates to a multifunctional network polymer and film prepared from two siloxane monomers containing aniline oligomers and fluorescent groups respectively, a preparation method and the polymer Thin films are used in electrochromic or electronically controlled fluorescence. [0002] technical background [0003] In recent years, electrochromic polymers have gradually been widely used in smart windows, low-energy displays, automotive self-dimming rearview mirrors, and smart wearable devices. Among common electrochromic polymers, polyaniline is considered to be an important research material due to its advantages of low redox switching potential, high electroactivity, multicolor switching properties, and easy synthesis by chemical and electrochemical polymerization methods. valuable material. However, due to the large conjugated structure and strong hydrogen b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G77/26C08G77/06C08L83/08C08J5/18C09K11/06G01N21/31G01N21/64G01N27/48
CPCC08G77/06C08G77/26C08J5/18C08J2383/08C09K11/06G01N21/3151G01N21/643G01N27/48G01N2021/3155G01N2021/6432
Inventor 晁单明李妍妍周岩
Owner JILIN UNIV
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