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

A technology of conjugated micropores and polymers, applied in separation methods, alkali metal compounds, chemical instruments and methods, etc., can solve the problems of high price, achieve low cost, optimize pore structure, and improve adsorption capacity

Active Publication Date: 2020-06-12
镇江猎盾特种材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Currently used for CO 2 Adsorbed porous materials, usually prepared by the C-C metal coupling method, are expensive and have a negative effect on CO 2 The selectivity is poor,

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A pyridyl-containing conjugated microporous polymer provided in this example, its specific preparation method is as follows: 1,4-Diacetophenone (243.3 mg, 1.5 mmol), tris-(4 -Formylphenyl)amine (164.7mg, 0.5mmol) was mixed and placed in a 200ml round bottom flask, ammonium acetate (1.54g, 20mmol) was added, and then 100ml of pyridine was added to dissolve the above mixed powder, and finally the mixture was placed in Stir the reaction at 115°C oil bath temperature for 24h. Suction filtration after the reaction is completed, the suction filtration needs to be carried out in a sand core funnel, and deionized water, methanol, and chloroform are respectively stirred and washed at 60 °C for 24 hours, and then dried in a vacuum oven at 60 °C for 24 hours after suction filtration to obtain Conjugated microporous polymers containing pyridyl groups, denoted as polymer-1, its BET specific surface area is 304m 2 / g.

[0038] The infrared spectrum of the polymer-1 that present emb...

Embodiment 2

[0041]A pyridyl-containing conjugated microporous polymer provided in this example, its specific preparation method is as follows: 1,4-Diacetophenone (243.3mg, 1.5mmol), 2,4, 6-Tris(4-formylphenyl)-1,3,5-triazine (196.7mg, 0.5mmol) was mixed in a 200ml round bottom flask, ammonium acetate (1.54g, 20mmol) was added, followed by 100ml of pyridine The above mixed powder was completely dissolved, and finally the mixed solution was placed in an oil bath temperature of 115° C. and stirred for 24 hours. After the reaction, suction filtration should be carried out in a sand core funnel, and stirred and washed with deionized water (60°C), DMSO (80°C), methanol (60°C), and chloroform (60°C) for 24 hours respectively, and suction filtration After drying in a vacuum oven at 60°C for 24 hours, a pyridyl-containing conjugated microporous polymer was obtained, which was designated as Polymer-2, and its BET specific surface area was 325m 2 / g.

[0042] The polymer-2 that present embodiment ...

Embodiment 3

[0046] A pyridyl-containing conjugated microporous polymer provided in this example, its specific preparation method is as follows: 1,3,5-triacetophenone (408.5 mg, 2 mmol), 1,3 , Mix 5-tris(p-formylphenyl)benzene (390.4mg, 1mmol) in a 200ml round bottom flask, add ammonium acetate (2.31g, 30mmol), then add 100ml of pyridine to dissolve the above mixed powder, and finally The mixture was placed in an oil bath at 115°C and stirred for 24 hours. Suction filtration after the reaction, suction filtration needs to be carried out in a sand core funnel, stirred and washed with deionized water, methanol, and chloroform at 60°C for 24h respectively, and placed in a vacuum oven at 60°C for 24h after suction filtration to obtain the The conjugated microporous polymer of pyridyl, denoted as polymer-3, its BET specific surface area is 511m 2 / g.

[0047] The N of polymer-3 obtained in this embodiment at 77.4K 2 The adsorption-desorption curve of Figure 6 As shown, it can be seen that ...

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Abstract

The invention discloses a pyridyl-containing conjugated microporous polymer as well as a preparation method and application thereof. The pyridyl-containing conjugated microporous polymer is prepared by subjecting two carbonyl-containing aromatic compounds in a pyridine environment to condensation and conjugate addition, and performing cyclization with ammonia to form a pyridine ring to synthesizethe pyridyl-containing nitrogen doped conjugated microporous polymer. The method includes mixing aromatic aldehyde with aromatic ketone, adding ammonium acetate and pyridine, putting the mixture intoan oil bath pot, reacting at a certain temperature and a certain rotating speed, filtering, washing, and drying to obtain the target product. The polymer has potential application value in the fieldsof gas adsorption and separation, energy storage, catalysis, electrochemistry and the like; the preparation method is simple and convenient to operate, and the prepared polymer has excellent rigidity,thermal stability and chemical stability, can be used in the fields of adsorption separation, energy storage, catalysis and electrochemistry, and is wide in application range, good in adsorption effect, high in adsorption capacity and relatively low in cost.

Description

technical field [0001] The invention belongs to the field of synthesis of adsorption and separation materials, in particular to a pyridyl-containing conjugated microporous polymer and its preparation method and application. Background technique [0002] Conjugated microporous polymers are widely used in gas adsorption and separation, energy storage, catalysis, electrochemistry, etc. fields have broad application prospects. Currently used for CO 2 Adsorbed porous materials, usually prepared by the C-C metal coupling method, are expensive and have a negative effect on CO 2 The selectivity is poor, and the adsorption capacity needs to be improved; therefore, it is necessary to develop a low-cost, high-adsorption, and low-consumption material to replace the existing material. Contents of the invention [0003] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a pyridyl-containing conjugated microporous p...

Claims

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Application Information

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IPC IPC(8): C08G73/06B01J20/26B01J20/28B01J20/30B01D53/02
CPCC08G73/0627B01J20/262B01J20/28011B01J20/28064B01J20/28061B01J20/2808B01D53/02B01D2257/504Y02C20/40Y02P20/151
Inventor 廖耀祖曾沁若左宏瑜闫春娜朱桐桐程中桦
Owner 镇江猎盾特种材料有限公司
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