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Gel factor capable of recognizing aromatic acid isomer and preparation and application of supramolecular polymer gel of aromatic acid isomer

A technology of supramolecular polymer and gel factor, applied in the field of gel factor and its synthesis

Inactive Publication Date: 2018-04-20
NORTHWEST NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is rare to report that a certain molecule is identified and separated from its isomers using the same supramolecular polymer gel.

Method used

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  • Gel factor capable of recognizing aromatic acid isomer and preparation and application of supramolecular polymer gel of aromatic acid isomer
  • Gel factor capable of recognizing aromatic acid isomer and preparation and application of supramolecular polymer gel of aromatic acid isomer
  • Gel factor capable of recognizing aromatic acid isomer and preparation and application of supramolecular polymer gel of aromatic acid isomer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Embodiment 1, the preparation of gelling factor BP5

[0031] In 50ml of acetonitrile, add 0.58g (5×10 -3 mol) brominated column[5]arene P5, 0.43g (1.5×10 -3 mol) naphthalimide derivatives, reacted at 80°C for 48 hours, cooled to room temperature after the reaction was completed, removed the solvent by rotary evaporation, mixed the sample and put it on the column, with petroleum ether: ethyl acetate = 10:1~5 ( v / v) was eluted to obtain a yellow solid product which was the gelling factor BP5; the yield was 75.6%. Its mass spectrum see figure 1 . Its structural formula is as follows:

[0032] .

Embodiment 2

[0033] Embodiment 2, preparation of supramolecular polymer gel BP5G

[0034] Take 0.005 g of the sensor molecule prepared in Example 1, add it to 1 ml of cyclohexanol and heat to dissolve it fully, let it stand, and after cooling to room temperature, a supramolecular polymer gel BP5G with a mass volume ratio of 5 mg / ml is formed.

Embodiment 3

[0035] Embodiment 3, BP5G colorimetry / fluorescence recognition p-nitrobenzoic acid

[0036] Pipette the supramolecular polymer gel BP5G into three cuvettes respectively, add o-nitrobenzoic acid, m-nitrobenzoic acid and p-nitrobenzoic acid aqueous solution (concentration: 0.1M), if supramolecular polymerization The fluorescence of the gel BP5G was quenched, and the color of the gel changed from yellow to colorless, indicating that o-nitrobenzoic acid or m-nitrobenzoic acid was added dropwise; if the fluorescence of the gel BP5G did not quench, then It shows that p-nitrobenzoic acid is added dropwise.

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Abstract

The invention relates to a designed synthesized gel factor capable of recognizing an aromatic acid isomer. Acetonitrile is taken as a solvent and brominated column [5] aromatic hydrocarbon and a naphthalimide derivative are taken as a substrate to carry out reflux, after the reaction is over, the reaction system is cooled to the room temperature, the solvent is steamed, and petroleum ether and ethyl acetate are used for elution to obtain a yellow solid product which is the gel factor BP5. The gel factor BP5 can form supramolecular polymer gel BP5G in cyclohexanol through a pi-pi effect. The supramolecular gel BP5G allows color comparison and fluorescent recognition and separation of aromatic acid isomer molecules to be achieved through competitive coordination of hydrogen bonds. Multifunction application including recognition and separation of the aromatic acid isomer is achieved, and the gel factor has great significance in the fields of bioscience and environmental detection.

Description

technical field [0001] The present invention relates to a gel factor capable of recognizing aromatic acid isomers and its synthesis; the present invention also relates to the fluorescence of aromatic acid isomers by the supramolecular polymer organogel formed by the gel factor in an organic solvent -The multifunctional application of colorimetric identification and separation belongs to the field of molecular detection. Background technique [0002] Aromatic acids are intermediates in the synthesis of many chemical products. As a class of simple organic acid compounds, raw materials that are often used to synthesize complex compounds are widely used in various synthetic fields such as dyes, drugs, and polymer materials. In synthetic chemistry, certain aromatic acids can also be used as catalysts in reactions. Aromatic acids are discharged into water or soil, causing great pollution. Therefore, the detection of aromatic acids is of great significance in the fields of life ...

Claims

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Application Information

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IPC IPC(8): C07D221/14C09K11/06G01N21/64C07C201/16C07C205/57
CPCC07C201/16C07D221/14C09K11/06C09K2211/1011C09K2211/1029G01N21/6428G01N2021/6432C07C205/57
Inventor 林奇关晓文樊彦青王姣刘露毛鹏鹏魏太保张有明姚虹
Owner NORTHWEST NORMAL UNIVERSITY
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