Dynamic covalent bond functionalized silver nanowire and preparation method and application thereof

A technology of dynamic covalent bonds and nanowires, which is applied in chemical instruments and methods, nanotechnology, solutions from liquid solvents at room temperature, etc., can solve problems such as easy breakage of silver nanowires and damage to the properties of silver nanowires, and achieve reaction Conditions are easy to control, the length distribution is uniform, and the operation is simple

Active Publication Date: 2022-04-05
ZHEJIANG UNIV HANGZHOU GLOBAL SCI & TECH INNOVATION CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] At present, the main method for functional modification of silver nanowires is to mix polymers with silver nanowires, and to adhere the polymers to the surface of silver nanowires. However, this mechanical mixing usually requires rapid stirring or ultrasound to make silver nanowires Evenly dispersed in viscous polymers, in the process of ultrasonic and rapid stirring, silver nanowires are prone to breakage, which greatly destroys the properties of silver nanowires

Method used

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  • Dynamic covalent bond functionalized silver nanowire and preparation method and application thereof
  • Dynamic covalent bond functionalized silver nanowire and preparation method and application thereof
  • Dynamic covalent bond functionalized silver nanowire and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] (17.78 g, 160 mmol) N-vinylpyrrolidone, (9.8 g, 40 mmol) 2,3-dioxane methyl methacrylate, (12.3 mg, 0.075 mmol) azo diisobutyronitrile (AIBN) is dissolved in 15 ml of benzyl ether. The air was replaced with nitrogen bubbles, and the solution was heated for 30 minutes to 65 ° C, and the reaction was 16 hours. 10 ml of tetrahydrofuran (THF) was added to the reaction system, and then dried diethyl ether precipitates the product to obtain polymer A.

[0053]

[0054] Then, 2 g of a NaBR (solvent having 1 ml 2 mmol / L), 1 ml 2 mmol / L of NaCl (solvent is ethylene glycol), respectively, is added to a solution containing 100 ml of concentration of 0.025 g / ml polymer A. (The solvent is ethylene glycol) to give a solution A; 1 g of silver nitrate is continued to the solution A, and the bubble is bubbled for 10 minutes, and the reactor is sealed, and the oven is added to 170 ° C, and the holding is 5 hours. The reaction was stopped, cooled to room temperature, add 200 ml of eth...

Embodiment 2

[0056] (17.78 g, 160 mmol) N-vinylpyrrolidone, (11.5 g, 40 mmol) 5,6-dioxane methyl methacrylate, (12.3 mg, 0.075 mmol) azo diisobutyronitrile was dissolved in 15 ml In the ether. The air was replaced with nitrogen bubbles, and the solution was heated for 30 minutes to 65 ° C, and the reaction was 16 hours. 10 ml of tetrahydrofuran was added to the reaction system, and then dried diethyl ether precipitates the product to obtain polymer A.

[0057] Then, 2 g of a NaBR (solvent having 1 ml 2 mmol / L), 1 ml 2 mmol / L of NaCl (solvent is ethylene glycol), respectively, is added to a solution containing 100 ml of concentration of 0.025 g / ml polymer A. (The solvent is ethylene glycol) to give a solution A; 1 g of silver nitrate is continued to the solution A, and the bubble is bubbled for 10 minutes, and the reactor is sealed, and the oven is added to 170 ° C, and the holding is 5 hours. The reaction was stopped, cooled to room temperature, add 200 ml of ethanol centrifugation to ob...

Embodiment 3

[0059] (17.78 g, 160 mmol) N-vinylpyrrolidone, (19.6 g, 80 mmol) 2,3-dioxane methyl methacrylate, (12.3 mg, 0.075 mmol) azo diisobutyronitrile was dissolved in 15 mL benzoanitrile In the ether. The air was replaced with nitrogen bubbles, and the solution was heated for 30 minutes to 65 ° C, and the reaction was 16 hours. 10 ml of tetrahydrofuran was added to the reaction system, and then dried diethyl ether precipitates the product to obtain polymer A.

[0060] Then, 2 g of a NaBR (solvent having 1 ml 2 mmol / L), 1 ml 2 mmol / L of NaCl (solvent is ethylene glycol), respectively, is added to a solution containing 100 ml of concentration of 0.025 g / ml polymer A. (The solvent is ethylene glycol) to give a solution A; 1 g of silver nitrate is continued to the solution A, and the bubble is bubbled for 10 minutes, and the reactor is sealed, and the oven is added to 170 ° C, and the holding is 5 hours. The reaction was stopped, cooled to room temperature, add 200 ml of ethanol centri...

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Abstract

The invention discloses a dynamic covalent bond functionalized silver nanowire, a preparation method thereof and application of the dynamic covalent bond functionalized silver nanowire in preparation of an electrode. The preparation method comprises the following steps: polymerizing an N-vinyl pyrrolidone monomer and a monomer with a dynamic covalent bond to obtain a polymer A; the dynamic covalent bond comprises one or more of a boron-oxygen bond, a carbon-oxygen bond, a disulfide bond, a carbon-carbon bond, a carbon-nitrogen bond and a silicon-oxygen bond; the preparation method comprises the following steps: adding sodium chloride, sodium bromide, benzoin and a polymer A into a reaction kettle filled with ethylene glycol, and uniformly mixing to obtain a mixed solution a; adding silver nitrate into the reaction kettle, and uniformly mixing to obtain a mixed solution b; deoxidizing and sealing the reaction kettle, heating to 140-180 DEG C for reaction, cooling after the reaction is finished, and washing a solid to obtain the dynamic covalent bond functionalized silver nanowire. According to the method, functionalized polyvinylpyrrolidone is adopted as a covering agent for synthesizing the silver nanowires through a solution method, and the silver nanowires are functionalized synchronously in the growth process of the silver nanowires.

Description

Technical field [0001] The present invention relates to the field of silver nanowires, and more particularly to a dynamic covalent bond functionalized silver nanowire and a preparation method thereof. Background technique [0002] In recent years, with the high-speed development of intelligent equipment display, wearable device, flexible sensor, etc., high-performance flexible transparent conductive film is sharply expanded. [0003] At present, most of the traditional transparent display of transparent displays in the market use indium tin oxide (ITO), but the ITO texture is brittle, and the indium element belongs to the rare metals. The ground reserves are rare, the ITO coating has higher cost, so that ITO cannot be applied in the field of flexible electronic equipment . [0004] Therefore, there is an urgent need for new materials that can replace ITO to meet the needs of the market. [0005] Silver nanowires have excellent conductivity, thermal conductivity, and low surface r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C30B29/02C30B29/62C30B7/14B22F9/24B82Y40/00
Inventor 黄飞鹤李光锋肖丁徐建平
Owner ZHEJIANG UNIV HANGZHOU GLOBAL SCI & TECH INNOVATION CENT
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