Pyridyl-containing conjugated microporous polymer and preparation method and application thereof

A conjugated microporous, pyridyl-based technology, applied in chemical instruments and methods, and other chemical processes, can solve problems such as difficult reactions, harsh reaction conditions, and uncertainty in nitrogen content

Active Publication Date: 2019-06-28
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a pyridyl-containing conjugated microporous polymer and its preparation method and application, which overcomes the existing problem of using pyridyl derivatives as reactive monomers to directly couple and synthesize pyridyl-containing polymers. The reaction is difficult, the reaction conditions are harsh, and the nitrogen content introduced is uncertain.

Method used

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  • Pyridyl-containing conjugated microporous polymer and preparation method and application thereof
  • Pyridyl-containing conjugated microporous polymer and preparation method and application thereof
  • Pyridyl-containing conjugated microporous polymer and preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0034] Combine trimesic aldehyde (162.1mg, 1mmol) and 1,3,5-triacetophenone (67.4mg, 0.33mmol) in a 50ml round bottom flask, add ammonium acetate (1.03g, 13.3mmol), and then add 25ml of acetic acid dissolves all the above-mentioned mixed powders, and finally the mixed solution is placed in an oil bath at 120°C and stirred at a certain speed for 8 hours. After the reaction, it was filtered with suction, first washed with ammonia water at room temperature for 24h, and then washed with deionized water and anhydrous methanol for 24h at 60℃. After suction filtered, it was dried in a vacuum oven at 60℃ for 24h. Pyridyl conjugated microporous polymer, denoted as polymer-1, its BET specific surface area is 111m 2 / g.

[0035] Of the polymer-1 obtained in this example 13 C-NMR test results such as figure 1 As shown, it can be seen that the peak at 136.5 ppm chemical shift is the peak of C in the pyridyl chemical environment, proving the existence of pyridyl; the peak at 130 ppm chemical ...

Embodiment 2

[0038] Combine trimesoaldehyde (162.1mg, 1mmol) and 1,3,5-triacetophenone (102.1mg, 0.5mmol) in a 50ml round bottom flask, add ammonium acetate (1.16g, 15mmol), and then add 25ml Acetic acid dissolves all the above-mentioned mixed powders, and finally the mixed liquid is placed in an oil bath at 120° C. and stirred at a certain speed for 8 hours. After the reaction is completed, filter with suction, first wash with ammonia water at room temperature for 24h, then wash with deionized water and anhydrous methanol for 24h at 60℃ respectively, and place it in a vacuum oven at 60℃ to dry for 24h after suction filtration. Pyridyl conjugated microporous polymer, denoted as polymer-2, its BET specific surface area is 106m 2 / g.

[0039] Of the polymer-2 obtained in this example 13 C-NMR test results such as image 3 As shown, it can be seen that the peak at 136.5ppm chemical shift is the peak of C in the pyridyl chemical environment, proving the existence of pyridyl; the peak at 121ppm ch...

Embodiment 3

[0042] Combine trimelliformaldehyde (162.1mg, 1mmol) and 1,3,5-triacetophenone (204.2mg, 1mmol) in a 50ml round bottom flask, add ammonium acetate (1.54g, 20mmol), and then add 25ml of acetic acid Dissolve all the above-mentioned mixed powders, and finally put the mixed liquid in an oil bath at 120°C and stir for 8 hours at a certain speed. After the reaction is completed, filter with suction, first wash with ammonia water at room temperature for 24h, then wash with deionized water and anhydrous methanol for 24h at 60℃, after suction filter, place it in a vacuum oven at 60℃ for 24h to obtain Pyridyl conjugated microporous polymer, denoted as polymer-3, its BET specific surface area is 30m 2 / g.

[0043] Of the polymer-3 obtained in this example 13 C-NMR test results such as Figure 5 As shown, it can be seen that the peak at 136.5 ppm chemical shift is the peak of C in the pyridyl chemical environment, which proves the existence of pyridyl; the peak at 130 ppm chemical shift is t...

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Abstract

The invention relates to a pyridyl-containing conjugated microporous polymer and a preparation method and an application thereof. The preparation method comprises the following steps: mixing triformylbenzene with 1,3,5-triacetylbenzene; adding ammonium acetate and an acid; carrying out a reaction after full dissolution; and washing, filtering and vacuum drying the mixture to obtain the pyridyl-containing conjugated microporous polymer. Carbonyl of two aromatic compounds containing carboxyl and ammonium acetate in an acid environment is deoxidized to form a cycle to form the pyridyl so as to construct a conjugated microporous network structure to generate the pyridyl-containing conjugated microporous polymer. The pyridyl-containing conjugated microporous polymer has potential application value in the fields of gas adsorption and separation, electrochemical performance, catalysis and the like.

Description

Technical field [0001] The invention belongs to the technical field of microporous polymers, and particularly relates to a pyridyl-containing conjugated microporous polymer and a preparation method and application thereof. Background technique [0002] As a new type of porous organic material with high specific surface area and hierarchical pore properties, conjugated microporous organic polymer has the characteristics of diverse synthesis methods, designable molecular structure, adjustable pore size, etc., in gas adsorption and separation, Chemical energy storage, chemical catalysis, electrocatalysis, photocatalysis and other fields have been widely used, and have developed rapidly in recent years to become a research hotspot for scientists. [0003] Studies have shown that nitrogen atom doping can greatly improve the performance of gas separation selection, photocatalytic conversion and energy storage performance of conjugated microporous polymers. The introduction of pyridyl gr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G73/06C08J9/02B01J20/26B01J20/30
Inventor 廖耀祖何颜程中桦
Owner DONGHUA UNIV
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