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Imine bond linked covalent organic framework (COF)

A covalent organic framework and imine bond technology, applied in electrical components, battery electrodes, circuits, etc., can solve the problems of inability to realize industrial production, high cost, high equipment requirements, etc., and meet the requirements of simple equipment and good crystallinity , the effect of high specific surface area

Inactive Publication Date: 2016-08-17
SHANGHAI JIAOTONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, in the field of new energy storage devices such as lithium batteries / supercapacitors, the existing covalent organic framework materials are far from meeting the needs, and the production methods have high requirements for equipment and high costs, and industrial production cannot be realized.

Method used

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  • Imine bond linked covalent organic framework (COF)
  • Imine bond linked covalent organic framework (COF)
  • Imine bond linked covalent organic framework (COF)

Examples

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Embodiment 1

[0031] This example provides a method for preparing an alkyne-containing imine bond to connect a covalent organic framework, the steps are as follows:

[0032] Step 1, get 54mg of 2,5-dipropargyloxy terephthalaldehyde (C 14 h 10 o 4 ), 78mg of three (4-aminophenyl) benzene (C 24 h 21 N 3 ), add 5ml of mesitylene / n-butanol / 6mol / L acetic acid (volume ratio: 2:2:1) solvent, put into a heat-resistant glass reaction tube of 10ml, ultrasonically disperse for 5 minutes to form suspension A;

[0033] Step 2: Suspension A undergoes three liquid nitrogen freezing-vacuumizing-degassing steps, seals it and puts it into a microwave reactor, and reacts at 130°C for 2 hours to obtain crude product B;

[0034] Step 3, after the crude product B is centrifuged, the insoluble matter is collected, washed twice with 2ml of n-butanol and 2ml of acetone solvent, and dried to obtain an alkyne-containing imine bond-linked covalent organic framework, such as Figure 5 shown.

[0035] Implementat...

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Abstract

The invention discloses an imine bond linked covalent organic framework (COF). A preparation method of the COF comprises the following steps: adding 2,5-dialkynylpropoxy terephthalaldehyde and sym-tris(4-aminophenyl)benzene to a solvent and carrying out ultrasonic dispersion to form suspension, wherein the solvent is a mixed solvent of mesitylene, n-butyl alcohol and an acetic acid solution; carrying out liquid nitrogen refrigeration-vacuumizing-degassing treatment on the suspension, sealing the suspension and carrying out microwave-assisted solvothermal reaction, thus obtaining a crude product; and after centrifuging the crude product, collecting an insoluble substance and washing and drying the insoluble substance, thus obtaining the imine bond linked COF. The method is pollution-free, is mild and simple in reaction conditions, has simple requirements for equipment and is suitable for large-scale industrial production.

Description

technical field [0001] The invention relates to a preparation method in the technical field of polymer materials, in particular to an imine bond-linked covalent organic framework and a preparation method thereof. Background technique [0002] Covalent organic frameworks (Covalent Organic Frameworks; COFs) are formed by the connection of organic structural units through covalent bonds. Physical and chemical properties. After searching the literature of the prior art, it was found that in 2012 Donglin JIANG et al. published Covalent Organic Framework (covalent organic framework) on pages 6010-6022 of Volume 41 of "Chemical Society Reviews". Compared with traditional linear and three-dimensional polymers, covalent organic frameworks have completely different structural characteristics. Its atomic layer structure is clear, the connection method is clear, the structural units are arranged regularly, and it has precise periodicity; the material has high crystallinity and can be f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G73/02H01M4/60H01G11/30
CPCC08G73/02H01G11/30H01M4/606Y02E60/10
Inventor 魏浩柴双志韩洋张雪魏良明
Owner SHANGHAI JIAOTONG UNIV
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