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Heterocyclic azobenzene polymer energy storage material and preparation method thereof

A technology of heterocyclic azobenzene and energy storage materials, applied in the field of energy storage materials, can solve problems such as difficult film formation and limited device applications, and achieve the effects of high energy density, mild preparation reaction conditions, and narrow molecular weight distribution

Active Publication Date: 2021-03-09
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Research in the field of azobenzene photothermal mainly uses carbon material templates and polymer templates. Although carbon material templates can obtain relatively high energy densities, they are difficult to form films, which limits their device applications, while polymer templates are used in practical device applications. more potential

Method used

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  • Heterocyclic azobenzene polymer energy storage material and preparation method thereof
  • Heterocyclic azobenzene polymer energy storage material and preparation method thereof
  • Heterocyclic azobenzene polymer energy storage material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A kind of preparation method of heterocyclic azobenzene polymer, its synthetic route is as follows:

[0033]

[0034] 1) Preparation of 4-((3,5-dimethoxyaniline)-diazenyl)-2-thiazole (Azo):

[0035] 2-Aminothiazole (1.0 g, 10 mmol) was dissolved in 10 ml of pyridine, which was then added to 40 mL of NaNO 2 (0.76g, 11mmol) in aqueous solution to obtain a mixed solution. HCl solution (40mL, 1mol·L -1 , 40mmol) was slowly dropped into the above mixed solution for diazotization reaction. After reacting for 0.5h, the reaction solution was slowly added to 3,5-dimethoxyaniline (1.53g, 10mmol) in HCl solution (10ml, 1mol·L -1 ), the whole process was reacted for 6 hours under the protection of argon at a temperature of 0-5°C. A mixed solvent of ethanol and water (50ml, volume ratio 4:1) was added, and reacted at 80°C for 3 hours. The reaction solution was filtered to obtain a crude product, which was purified by column chromatography (dichloromethane / methanol with a vol...

Embodiment 2

[0045] 1) Preparation of 4-((3,5-dimethoxyaniline)-diazenyl)-2-thiazole (Azo):

[0046] 2-Aminothiazole (1.0 g, 10 mmol) was dissolved in 10 ml of pyridine, which was then added to 40 mL of NaNO 2 (0.73g, 10.5mmol) in aqueous solution to obtain a mixed solution. HCl solution (40mL, 1mol·L -1 , 30mmol) was slowly dropped into the above mixed solution for diazotization reaction. After reacting for 0.5h, the reaction solution was slowly added to 3,5-dimethoxyaniline (2.30g, 15mmol) in HCl solution (10ml, 1mol L -1 ), the whole process was reacted for 4 hours under the protection of argon at a temperature of 0-5°C. A mixed solvent of ethanol and water (50ml, volume ratio 4:1) was added and reacted at 70°C for 5 hours. The reaction solution was filtered to obtain a crude product, which was purified by column chromatography (dichloromethane / methanol with a volume ratio of 9:1 as the eluent) to obtain 1.3 g of Azo as a solid.

[0047] 2) Preparation of monomer

[0048] Dissolve c...

Embodiment 3

[0052] 1) Preparation of 4-((3,5-dimethoxyaniline)-diazenyl)-2-thiazole (Azo):

[0053] 2-Aminothiazole (1.0 g, 10 mmol) was dissolved in 10 ml of pyridine, which was then added to 40 mL of NaNO 2 (0.76g, 11mmol) in aqueous solution to obtain a mixed solution. HCl solution (40mL, 1mol·L -1 , 50mmol) was slowly dropped into the above mixed solution for diazotization reaction. After reacting for 0.5h, the reaction solution was slowly added to 3,5-dimethoxyaniline (1.53g, 10mmol) in HCl solution (10ml, 1mol·L -1 ), the whole process was reacted for 10 hours under the protection of argon at a temperature of 0-5°C. A mixed solvent of ethanol and water (50ml, volume ratio 4:1) was added, and reacted at 90°C for 2 hours. The reaction solution was filtered to obtain a crude product, which was purified by column chromatography (dichloromethane / methanol with a volume ratio of 9:1 as the eluent) to obtain 1.4 g of solid Azo.

[0054] 2) Preparation of monomer

[0055] Dissolve cis-...

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Abstract

The invention discloses a preparation method of a heterocyclic azobenzene polymer energy storage material and an application of the heterocyclic azobenzene polymer energy storage material in an energystorage material. The heterocyclic azobenzene polymer adopts ring-opening metathesis polymerization, the molecular weight distribution is narrow, and the preparation reaction conditions are mild. Anenergy storage material prepared from the heterocyclic azobenzene polymer adopts heterocyclic azo, molecules can form hydrogen bonds, and the energy density is higher than that of a traditional azo-based polymer.

Description

technical field [0001] The invention relates to the technical field of energy storage materials, in particular to a heterocyclic azobenzene polymer energy storage material and a preparation method thereof. Background technique [0002] Energy issues have become a hot topic in research in the world today. Traditional fossil resources are increasingly scarce, and they produce relatively large pollution, such as acid rain, smog, and greenhouse effects, which seriously threaten the survival of human beings. Therefore, it is necessary to develop new energy sources to solve the problems of insufficient resources and environmental pollution. Solar energy is inexhaustible and inexhaustible, and has become a hot field that countries all over the world are competing to develop. In Europe, solar photovoltaic power generation can meet about 10% of electricity demand, and is expected to meet 20% of electricity demand in 2020. my country is rich in solar energy resources, and the theore...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G61/08
CPCC08G61/08C08G2261/11C08G2261/143C08G2261/418
Inventor 封伟唐俊稳冯奕钰刘浩高文超
Owner TIANJIN UNIV
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