Nitrogen-containing cyclodextrin polymer porous material and preparation method and application thereof
A technology for cyclodextrin polymers and porous materials, which is applied in the direction of separation methods, chemical instruments and methods, educts, etc., can solve problems such as the preparation of nitrogen-containing cyclodextrin polymer porous materials, and achieve low cost and selectivity. High performance and high adsorption capacity
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Embodiment 1
[0029] (1) Under a nitrogen atmosphere, in a 500mL round-bottomed flask, take 17g of β-cyclodextrin and put it into 100mL of tetrahydrofuran solution containing 7.46g of potassium carbonate, fully stir and dissolve it and place it in an ice-water bath to obtain solution 1; take 2.77g Add cyanuric chloride to 50mL of tetrahydrofuran, stir to dissolve it to obtain solution 2;
[0030] Under a nitrogen atmosphere, slowly drop solution 2 into the above solution 1 with a dropping funnel for 30 minutes, control the temperature at 0-5°C, and react for 12 hours to obtain reaction solution 1;
[0031] (2) Dissolve 4.5 g of polyethyleneimine with a molecular weight of 600 into 50 mL of tetrahydrofuran to obtain solution 3, add solution 3 dropwise to the above reaction solution 1, raise the temperature to 80° C. and continue the reaction for 24 hours to obtain reaction solution 2;
[0032] (3) Cool the reaction solution 2 to room temperature, filter, wash the solid on the filter paper to...
Embodiment 2
[0035] (1) Under a nitrogen atmosphere, in a 500mL round-bottomed flask, take 17g of β-cyclodextrin and put it into 100mL of dioxane solution containing 5.45g of triethylamine, fully stir and dissolve it and place it in an ice-water bath to obtain a solution 1; Take 2.77g of cyanuric chloride and add it to 50mL of dioxane, stir to dissolve it, and obtain solution 2;
[0036] Under a nitrogen atmosphere, slowly drop solution 2 into the above solution 1 with a dropping funnel for 30 minutes, control the temperature at 0-5°C, and react for 12 hours to obtain reaction solution 1;
[0037] (2) Take 4.5 g of polyethyleneimine with a molecular weight of 600 and dissolve it in 50 mL of dioxane to obtain solution 3; add solution 3 dropwise to the above reaction solution 1, raise the temperature to 100°C and continue the reaction for 18 hours to obtain the reaction Liquid 2;
[0038] (3) Cool the reaction solution 2 to room temperature, filter, wash the solid on the filter paper to neu...
Embodiment 3
[0041] (1) Under nitrogen atmosphere, in a 500mL round-bottomed flask, take 17g of β-cyclodextrin and put it into 100mL of acetonitrile solution containing 4.26g of pyridine, stir and dissolve it and place it in an ice-water bath to obtain solution 1; take 2.77g Add cyanuric chloride to 50mL of acetonitrile, stir to dissolve it, and obtain solution 2;
[0042] Slowly add solution 2 to the above solution 1 with a dropping funnel for 30 minutes, control the temperature at 0-5°C, and react for 12 hours to obtain reaction solution 1;
[0043] (2) 2.3 g of polyethyleneimine with a molecular weight of 1800 was dissolved in 50 mL of acetonitrile to obtain solution 3; solution 3 was added dropwise to the above reaction solution 1, and the temperature was raised to 90° C. to continue the reaction for 24 hours to obtain reaction solution 2;
[0044](3) Cool the reaction solution 2 to room temperature, filter, wash the solid on the filter paper to neutral with deionized water, then wash ...
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