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A multifunctional cationic network polymer and its application in the field of sewage purification

A cationic, polymer technology, applied in other chemical processes, alkali metal compounds, water/sewage treatment, etc., can solve problems such as unsatisfactory performance of water adsorption materials

Active Publication Date: 2021-05-25
EASTERN GANSU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] For this reason, the technical problem to be solved by the present invention is to provide a multifunctional cationic network polymer to solve the problem of unsatisfactory performance of water body adsorption materials in the prior art;

Method used

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  • A multifunctional cationic network polymer and its application in the field of sewage purification
  • A multifunctional cationic network polymer and its application in the field of sewage purification
  • A multifunctional cationic network polymer and its application in the field of sewage purification

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] In a 50mL single-necked round bottom flask, add 1,2,4,5-tetrakis-(4-pyridyl)benzene (193mg, 0.5mmol) and p-dibromobenzyl (264mg, 1.0mmol) in sequence, and mix well ; Under the protection of nitrogen replacement, N-methylpyrrolidone (25 mL) was added by injection as a reaction solvent, and then the temperature was raised to 80° C. for heating and stirring for 72 hours. After the system was cooled to room temperature, the obtained solid was filtered, washed thoroughly with solvents such as N,N-dimethylformamide, methanol, tetrahydrofuran, acetone, ether, etc., and heated and dried at 80°C for 6 hours to obtain a light brown solid powder That is, the cationic network polymer material CON-LDU3, the weighed product is 450 mg, and the calculated product yield is 98%.

[0042] Such as figure 1 Shown is the Fourier transform infrared spectrum of the network polymer CON-LDU3, visible, 2862-2933cm -1 and 1457cm -1 The signals at can be referred to respectively as -CH 2 - the ...

Embodiment 2

[0047] In a 50mL single-necked round bottom flask, add 1,2,4,5-tetrakis-(4-pyridyl)benzene (193mg, 0.5mmol) and p-dibromobenzyl (396mg, 1.5mmol) in sequence, and mix well ; Under the protection of nitrogen replacement, N-methylpyrrolidone (25 mL) was added by injection as a reaction solvent, and then the temperature was raised to 80° C. for heating and stirring for 72 hours. After the system was cooled to room temperature, the resulting solid was filtered, washed thoroughly with solvents such as N,N-dimethylformamide, methanol, tetrahydrofuran, acetone, ether, etc., and then heated and dried at 80°C for 6 hours. The obtained light brown solid powder was It is a cationic network polymer material CON-LDU3.

Embodiment 3

[0049] In a 50mL single-necked round bottom flask, add 1,2,4,5-tetrakis-(4-pyridyl)benzene (193mg, 0.5mmol) and p-dibromobenzyl (264mg, 1.0mmol) in sequence, and mix well ; Under the protection of nitrogen replacement, acetonitrile (25 mL) was added by injection as a reaction solvent, and then the temperature was raised to 80° C. for heating and stirring for 72 hours. After the system was cooled to room temperature, the obtained solid was filtered, washed thoroughly with solvents such as N,N-dimethylformamide, methanol, tetrahydrofuran, acetone, ether, etc., and heated and dried at 80°C for 6 hours to obtain a light brown solid powder It is the cationic network polymer material CON-LDU3.

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Abstract

The invention belongs to the technical field of polymer materials, specifically relates to an ionic network polymer, more specifically relates to a multifunctional cationic network polymer, and further discloses its application in the field of sewage purification. The multifunctional cationic network polymer of the present invention uses 1,2,4,5-tetra-(4-pyridyl)benzene and dibromobenzyl as monomers to undergo quaternization reaction to form an amorphous polymer. The above-mentioned polymer has a positively charged skeleton, and the pores contain abundant anions that can be exchanged. In addition to the advantages of traditional ionic network polymer materials, its thermal stability is better, and it can be used in many wastewaters. Adsorption and removal of a variety of pollutants, and the polymer material can be regenerated by a simple method during the adsorption process, and can be reused for multiple cycles.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, specifically relates to an ionic network polymer, more specifically relates to a multifunctional cationic network polymer, and further discloses its application in the field of sewage purification. Background technique [0002] With the continuous advancement of the industrialization process, human society has achieved continuous development and progress, and the economy and living standards have been greatly improved. However, economic development is accompanied by many environmental and ecological damages, which have become hidden dangers that affect and threaten human life. Among them, water resource pollution is one of the most severe environmental problems at present, which has threatened human health and the survival of other organisms. At present, the water environment problems mainly come from the massive discharge of various production and domestic sewage, which contains exces...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/26B01J20/28C02F1/28B01J20/30
CPCB01J20/264B01J20/28011B01J20/28014C02F1/285
Inventor 李治军
Owner EASTERN GANSU UNIVERSITY
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