A kind of synthetic method of nitrogen-enriched Schiff base polymer

A nitrogen-enriched Schiff base and a synthesis method technology are applied in the synthesis field of nitrogen-enriched Schiff base polymers, and can solve the problems of difficulty in control and low safety, and achieve the effects of reduced dosage, uniform particle size distribution and easy control.

Active Publication Date: 2022-05-24
HANGZHOU NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The reaction is simple and efficient, but the synthesis of this type of polymer also requires continuous microwave radiation for up to 2 hours, which is low in safety and difficult to control

Method used

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  • A kind of synthetic method of nitrogen-enriched Schiff base polymer
  • A kind of synthetic method of nitrogen-enriched Schiff base polymer
  • A kind of synthetic method of nitrogen-enriched Schiff base polymer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Add 15mmol of terephthalaldehyde (TA) and 20mmol of melamine (MA) into a double-necked round-bottomed flask, add 35ml of dimethyl sulfoxide, 10ml of xylene and 10ml of toluene, connect a water separator and a condenser, and condense The end of the tube is connected to a bubbler, magnetically stirred and inert gas is used for ventilation. During the reaction, ventilation is continued for protection. The temperature of the oil bath is set at 120 °C, stirred and refluxed for 2 h, and the temperature is raised to 150 °C after the reflux is completed. The water is refluxed until anhydrous is formed, and the reaction time is about 6h. After the reaction is completed, the heating is stopped, and the ventilation is stopped after the reaction is lowered to room temperature, and the solid material is filtered out. Using water as a solvent, the solid substance was extracted by Soxhlet extraction method for 4 hours, and the product was dried in a vacuum drying oven at 80°C for 24 ho...

Embodiment 2

[0041]Add 15mmol of terephthalaldehyde (TA) and 20mmol of melamine (MA) into a double-necked round-bottomed flask, add 35ml of dimethyl sulfoxide, 15m of toluene and 5ml of xylene, connect a water separator and a condenser, and condense The end of the tube was connected to a bubbler, magnetically stirred and inert gas was used for ventilation. During the reaction, ventilation was continued for protection. The temperature of the oil bath was set at 120 °C, and the temperature was stirred and refluxed for 2 h. After the reflux, the temperature was raised to 150 °C for reaction. The water is refluxed until anhydrous is formed, and the reaction time is about 6h. After the reaction is completed, the heating is stopped, and the ventilation is stopped after the reaction is lowered to room temperature, and the solid material is filtered out. Using water as a solvent, the solid substance was extracted by Soxhlet extraction method for 4 hours, and the product was placed in a vacuum dryin...

Embodiment 3

[0043] Add 10mmol of terephthalaldehyde (TA) and 20mmol of melamine (MA) into a double-necked round-bottomed flask, add 35ml of dimethyl sulfoxide, 10ml of xylene and 10ml of toluene, connect a water separator and a condenser, and condense The end of the tube is connected to a bubbler, magnetically stirred and inert gas is used for ventilation. During the reaction, ventilation is continued for protection. The temperature of the oil bath is set at 130 °C, and the temperature is stirred and refluxed for 2 h. After the reflux is completed, the temperature is raised to 150 °C for reaction. The water is refluxed until anhydrous is formed, and the reaction time is about 6h. After the reaction is completed, the heating is stopped, and the ventilation is stopped after the reaction is lowered to room temperature, and the solid material is filtered out. Using water as a solvent, the solid substance was extracted by Soxhlet extraction method for 4 hours. The product was placed in a vacuum...

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Abstract

The invention discloses a method for synthesizing a nitrogen-enriched Schiff base polymer. , be warming up to the temperature up and down the boiling point of toluene, and carry out water separation and reflux to produce anhydrous; (2) continue to be warming up to the temperature above and below the boiling point of xylene to react under inert gas, and water separation and reflux until anhydrous production; (3) after the reaction finishes, The reaction product was lowered to room temperature, and the nitrogen-rich Schiff base polymer was obtained after suction filtration, solid separation, washing and drying. The synthesis method of the invention has simple operation, easy control and high yield, and the nitrogen-rich Schiff base polymer synthesized by the invention has high nitrogen content, stable structure and uniform particle size distribution.

Description

technical field [0001] The invention relates to the technical field of synthesis of polymer materials, in particular to a synthesis method of a nitrogen-rich Schiff base polymer. Background technique [0002] Traditional adsorption materials are limited in large-scale applications due to their high cost, difficulty in recycling, and poor performance. Porous organic polymers have the characteristics of high specific surface area, abundant voids, good stability and easy regeneration, which make them suitable for ion adsorption, chromatography, etc. Separation, catalysis and other fields have excellent performance, and have become the focus of research and development of porous materials in recent years. At present, the synthetic methods of this type of polymers mainly include the following routes: [0003] (1) The patent application whose publication number is CN107216605A discloses a preparation method of a porous Schiff base polymer composite material supported by a carboni...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G12/32
CPCC08G12/32
Inventor 白赢余泽浩彭家建厉嘉云
Owner HANGZHOU NORMAL UNIVERSITY
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