Cyano(1h-tetrazolyl)dihydroborane imidazole coordination polymer, its preparation and application

A technology of dihydroboridine imidazole and coordination polymer, which is applied in the production of offensive equipment, explosives, compressed gas, etc., can solve the problems of no solid fuel, high toxicity, strong volatility, etc., and achieve less environmental pollution and generate High enthalpy and good thermal stability

Active Publication Date: 2022-04-01
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the main used spontaneous combustion fuels are hydrazine and hydrazine derivatives, but their disadvantages are high toxicity and strong volatility.
But in the standard type of solid-liquid propellant, there is no solid fuel that can spontaneously ignite

Method used

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  • Cyano(1h-tetrazolyl)dihydroborane imidazole coordination polymer, its preparation and application
  • Cyano(1h-tetrazolyl)dihydroborane imidazole coordination polymer, its preparation and application
  • Cyano(1h-tetrazolyl)dihydroborane imidazole coordination polymer, its preparation and application

Examples

Experimental program
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Effect test

Embodiment 1

[0060] The preparation method of cyano group (1H-tetrazolyl) dihydroborane 1-methyl imidazolium copper, described method step is as follows:

[0061] 0.242g (1mmol) copper nitrate trihydrate was dissolved in 5mL deionized water to obtain a copper nitrate solution;

[0062] Dissolve 0.220 g (2 mmol) of sodium cyano(1H-tetrazolyl) dihydroborane in 5 mL of deionized water to obtain a sodium cyano(1H-tetrazolyl) dihydroborane solution;

[0063] Add 0.164g (2mmol) of 1-methylimidazole to 20mL of ethanol, place it in a round bottom flask, and stir at 70°C to completely dissolve 1-methylimidazole in ethanol to obtain a 1-methylimidazole solution;

[0064] Add the copper nitrate solution dropwise to the 1-methylimidazole solution, and react at 70°C for 30 minutes to obtain a reaction solution; then add the cyano(1H-tetrazolyl)sodium dihydroborane solution dropwise to the reaction solution After the dropwise addition, continue to react at 70°C for 2 hours, cool to room temperature, an...

Embodiment 2

[0072] The preparation method of cyano group (1H-tetrazolyl) dihydroborane 1-ethyl imidazolium copper, described method step is as follows:

[0073] 0.242g (1mmol) copper nitrate trihydrate was dissolved in 5mL deionized water to obtain a copper nitrate solution;

[0074] Dissolve 0.220 g (2 mmol) of sodium cyano(1H-tetrazolyl) dihydroborane in 5 mL of deionized water to obtain a sodium cyano(1H-tetrazolyl) dihydroborane solution;

[0075] Add 0.192g (2mmol) of 1-ethylimidazole into 20mL of ethanol, place it in a round bottom flask, and stir at 70°C to completely dissolve 1-ethylimidazole in ethanol to obtain a 1-ethylimidazole solution; Add the copper nitrate solution dropwise to the 1-ethylimidazole solution, and react at 70°C for 30 minutes to obtain a reaction solution; then add the cyano(1H-tetrazolyl)sodium dihydroborane solution dropwise to the reaction solution After the dropwise addition, continue to react at 70°C for 2 hours, cool to room temperature, and filter. Th...

Embodiment 3

[0083] The preparation method of cyano group (1H-tetrazolyl) dihydroborane 1-allyl imidazolium copper, described method step is as follows:

[0084] 0.216 g (2 mmol) of 1-allylimidazole was dissolved in 20 mL of ethanol to obtain a 1-allyl imidazole solution.

[0085] Dissolve 0.220 g (2 mmol) of sodium cyano(1H-tetrazolyl) dihydroborane in 5 mL of deionized water to obtain a sodium cyano(1H-tetrazolyl) dihydroborane solution;

[0086] 0.242g (1mmol) copper nitrate trihydrate was added to 5mL deionized water, placed in a round bottom flask, stirred at 70°C, and copper nitrate trihydrate was dissolved in deionized water to obtain a copper nitrate solution; the cyano group ( Add 1H-tetrazolyl)sodium dihydroborane solution dropwise into the copper nitrate solution, react at 70°C for 30min to obtain a reaction solution; then add 1-allylimidazole solution dropwise into the reaction solution, dropwise After the addition, continue to react at 70°C for 2 hours, cool to room temperatu...

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Abstract

The invention relates to a cyano (1H-tetrazolyl) dihydroborane imidazole coordination polymer, its preparation and application, and belongs to the technical field of solid fuel and solid propellant combustion catalysis. The general structural formula of the coordination polymer is as follows: In the formula: M is a cation corresponding to Cr, Mn, Fe, Co, Ni, Cu, Zn, Cd, Pb or Bi; R is a cation containing 1 to 8 carbon atoms. Alkyl, alkenyl or alkynyl; 0<a≤8, and it is an even number; 0<b≤8, and it is an even number; n is any positive integer; the preparation of the coordination polymer can be carried out by combining metal salt solution with It is prepared by reacting the imidazole ligand solution, and then adding the alkali metal salt solution of cyano (1H-tetrazolyl) dihydroborane to continue the reaction. The coordination polymer can spontaneously ignite with a strong oxidant, and can be used as a spontaneous combustion fuel for solid-liquid propellants; it can also catalyze the thermal decomposition of AP and DNTF, and can be used as a catalyst for solid-liquid propellants.

Description

technical field [0001] The invention relates to a cyano (1H-tetrazolyl) dihydroborane imidazole coordination polymer, its preparation and application, and belongs to the technical field of solid fuel and solid propellant combustion catalysis. Background technique [0002] Propellants are a class of chemical substances that can rapidly produce large amounts of high-temperature gases when burned, and can be used to launch projectiles such as gun projectiles, rockets, and missiles. Propellants include solid-liquid propellants and solid propellants. Solid-liquid propellant is also called solid-liquid mixed propellant, and the combustion agent and oxidant are solid and liquid propellants respectively. Usually, the propellant composed of solid combustion agent and liquid oxidizer is called standard type; conversely, the propellant composed of liquid combustion agent and solid oxidizer is reverse type, which is called anti-solid-liquid propellant. [0003] Fuels used in anti-soli...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G83/00C06D5/00C06B23/00
CPCC08G83/008C06D5/00C06B23/007
Inventor 李志敏许艺强雷国荣张同来张建国
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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