Fullerene polyazide glycidyl ether and its preparation method and application

A technology of glycidyl ether and fullerene, applied in the field of energetic combustion catalysts and its preparation, to achieve the effects of increased combustion speed, easy separation and purification, and simple preparation methods

Inactive Publication Date: 2017-05-10
SOUTHWEAT UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no report on the introduction of energetic polymer polyazide glycidyl ether into fullerene spheres to obtain a new clathrate energetic material additive-fullerene polyazide glycidyl ether

Method used

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  • Fullerene polyazide glycidyl ether and its preparation method and application
  • Fullerene polyazide glycidyl ether and its preparation method and application
  • Fullerene polyazide glycidyl ether and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Example 1: (1) Put 10.00g of monomethyl polyazide glycidyl ether, 0.77mL of acid-binding agent N,N-dimethylformamide and 100mL of solvent dichloromethane into the reactor, at 0°C After diluting 1.87g of malonyl chloride with 30mL of dichloromethane, it was slowly dropped into the solution, and reacted at room temperature for 11h. The reaction solution was washed with water to a pH of about 7.0, dried and then evaporated to remove the solvent to obtain 9.4 g of malonic acid dimethyl polyazide glycidyl ether.

[0035] (2) Add 9.4g of the above-mentioned dimethyl malonate glycidyl azide and 150mL of dichloromethane in the reaction flask, and drop 1.93g of bromine into the reaction solution dropwise at room temperature until the reaction solution does not Fading, and then continue to stir the reaction 7h. After the reaction was completed, it was washed three times with saturated sodium bromide solution and distilled water successively, dried with anhydrous sodium sulfate, ...

Embodiment 2

[0042] Embodiment 2: Preparation of fullerene polyazide glycidyl ether

[0043] (1) Under nitrogen or argon atmosphere, put 10.00g of monomethyl polyazide glycidyl ether, 1.0mL of acid-binding agent triethylamine and 100mL of solvent methylene chloride into the reactor, and put 3.75g of Malonyl chloride was diluted with 40 mL of dichloromethane and slowly dropped into the solution, and reacted at room temperature for 10 h. The reaction solution was washed with water to a pH of about 7.0, dried and then evaporated to remove the solvent to obtain 10.8 g of malonate dimonomethyl polyazide glycidyl ether.

[0044] (2) Add 9.2g of the above-mentioned dimethyl malonate glycidyl azide and 150mL of dichloromethane in the reaction flask, and drop 3.8g of bromine into the reaction solution dropwise at room temperature until the reaction solution does not Fading, and then continue to stir the reaction 7h. After the reaction was completed, it was washed three times with saturated sodium...

Embodiment 3

[0051] Embodiment 3: Preparation of fullerene polyazide glycidyl ether

[0052] (1) Put 10.00g of monomethyl polyazide glycidyl ether, 0.60mL of acid-binding agent pyridine and 100mL of solvent methylene chloride into the reactor, and dilute 2.72g of malonyl chloride with 30mL of methylene chloride at 0°C Then it was slowly dropped into the solution and reacted at room temperature for 11h. The reaction solution was washed with water to a pH of about 7.0, and after drying, the solvent was removed by rotary evaporation to obtain 9.4 g of dimonomethyl polyazide glycidyl malonate

[0053] (2) Add 8.8g of the above-mentioned dimethyl malonate glycidyl azide ether and 150mL of dichloromethane into the reaction flask, add 3.2g of N-bromosuccinimide at room temperature, and then stir at 60°C Reaction 4h. After the reaction was completed, it was washed three times with saturated sodium bromide solution and distilled water successively, dried with anhydrous sodium sulfate, filtered, a...

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Abstract

The invention relates to fullerene polyazide glycidyl ether, a preparation method and applications thereof, wherein the fullerene derivative has the chemical structure formula represented by a formula (1). The invention further provides the preparation method, which comprises that: monomethyl polyazide glycidyl ether and malonyl chloride are adopted as raw materials, an esterification and bromination two-step reaction is performed to prepare brominated malonate di monomethyl polyazide glycidyl ether, and the brominated malonate di monomethyl polyazide glycidyl ether reacts with fullerene to prepare the fullerene polyazide glycidyl ether, wherein the fullerene derivative can be applied in the solid rocket propellant as the novel energetic combustion catalyst. According to the present invention, experiment results prove that the yield of the product can achieve 72%, and the platform combustion speed can be increased by 65% and the pressure index can be reduced to 0.22 through application of the product of the present invention in the solid propellant as the novel combustion catalyst. In the formula (1), n is 1-100.

Description

technical field [0001] The invention relates to an energetic combustion catalyst and its preparation method and application, in particular to a fullerene polyazide glycidyl ether and its preparation method and application. Background technique [0002] Combustion catalyst is one of the indispensable components to adjust the combustion performance of solid propellant, and it is a very critical functional material in solid propellant formulation. Traditional double-base or modified double-base propellants often use carbon, organic and inorganic salts of lead and copper, or oxides and salts of transition metals as combustion catalysts. These catalysts have different degrees of catalytic effect in improving the combustion performance of propellants The combustion rate of the propellant is increased, and the combustion characteristics of the "platform" are obtained, but these catalysts are all inert catalysts, which cause loss of propellant energy and low activity. Therefore, in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G83/00C08G65/00B01J31/06C06D5/00
Inventor 金波彭汝芳黄婷赵凤起仪建华楚士晋
Owner SOUTHWEAT UNIV OF SCI & TECH
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