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Functional monomers used for catalytic degradation of organophosphate and preparation method of porous imprinted polymer

A technology of organophosphate and imprinted polymers, which is applied in organic chemistry and other fields, can solve the problems of slow mass transfer rate and small specific surface area, and achieve high-efficiency degradation and good catalytic degradation effect

Active Publication Date: 2019-05-03
NANKAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method overcomes the shortcomings of the traditional preparation of molecularly imprinted polymers, such as slow mass transfer rate and small specific surface area.

Method used

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  • Functional monomers used for catalytic degradation of organophosphate and preparation method of porous imprinted polymer
  • Functional monomers used for catalytic degradation of organophosphate and preparation method of porous imprinted polymer
  • Functional monomers used for catalytic degradation of organophosphate and preparation method of porous imprinted polymer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] 1.1, the preparation of functional monomer 5a, its structure is as follows:

[0039]

[0040] (1) Synthesis of compound 2a in the preparation of functional monomer step

[0041] In a thick-walled glass bottle equipped with a magnet, add 1.69g of N-methylethylenediamine, 2.84g of ethyl trifluoroacetate and 200ml of chloroform under an ice-water bath, slowly rise to room temperature, react for two days, and use saturated Extract with brine, vacuumize to obtain a light yellow solid (1.7g, 60%), then at room temperature, dissolve 1.7g of light yellow liquid, 1.9g of vinylbenzyl chloride and 8g of potassium carbonate in 100ml of chloroform, at 40 React at -60°C for two days, filter, and pass through a silica gel column (dichloromethane / methanol: 50 / 1) to obtain the target product 2a (1.54g, 60%).

[0042] (2) Synthesis of compound 3a in the step of preparing functional monomer

[0043] In a thick-walled glass bottle equipped with a magnet, add 1.54g of the above-mention...

Embodiment 2

[0058] 2.1, the preparation of functional monomer 4b, its structure is as follows:

[0059]

[0060] (1) Synthesis of compound 2b in the step of preparing functional monomer

[0061] In a thick-walled glass bottle equipped with a magnet, add 3.2g of N-ethylethylenediamine, 5.89g of ethyl trifluoroacetate and 200ml of chloroform under an ice-water bath, slowly rise to room temperature, react for two days, and use saturated Extract with brine, vacuumize to obtain light yellow solid (3.4g, 61%), then at room temperature, the resulting 3.4g light yellow liquid, 3.8g vinylbenzyl chloride and 12g potassium carbonate are dissolved in 200ml chloroform, in React at 40-60°C for two days, filter, and pass through a silica gel column (dichloromethane / methanol: 60 / 1) to obtain the target product 2b (2.6g, 60%).

[0062] (2) Synthesis of compound 3b in the step of preparing functional monomer

[0063] In a thick-walled glass bottle equipped with a magnet, add 2.6g of the above-mentione...

Embodiment 3

[0074] 3.1, the preparation of functional monomer 5c, its structure is as follows:

[0075]

[0076] (1) Synthesis of compound 2c in the step of preparing functional monomer

[0077] In a thick-walled glass bottle equipped with a magnet, add 3.06g N-benzylethylenediamine, 2.84g ethyl trifluoroacetate and 200ml trichloromethane under ice-water bath, slowly rise to room temperature, react for two days, use saturated Extract with brine, vacuumize to obtain a light yellow solid (2.9g, 60%), then at room temperature, dissolve 2.9g of light yellow liquid, 1.9g of vinylbenzyl chloride and 8g of potassium carbonate in 100ml of chloroform, in React at 40-60°C for two days, filter, and pass through a silica gel column (dichloromethane / methanol: 50 / 1) to obtain the target product 2c (2.7g, 60%).

[0078] (2) Synthesis of compound 3c in the step of preparing functional monomer

[0079] In a thick-walled glass bottle equipped with a magnet, add 2.7g of the above-mentioned 2c, 8g of so...

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Abstract

The invention provides functional monomers used for catalytic degradation of organophosphate and a preparation method of porous imprinted polymer, and relates to the fields of functional monomer design and synthesis of porous imprinted crosslinked polymers. The preparation method of the porous imprinted polymer of the functional monomers used for catalytic degradation of the organic phosphate comprises the following steps: synthesis of the functional monomers, preparation of a functional complex, and preparation of the porous imprinted polymer, wherein the main step is that the functional monomers simulating an enzymatic hydrolysis action mechanism of the phosphate are firstly synthesized, then the functional monomers and a metal salt are subjected to coordination to prepare the functionalcomplex, finally template molecules, a crosslinking agent and an initiator are added, uniform mixing is performed, and therefore the porous imprinted polymer is prepared under solvothermal conditions. According to the method provided by the invention, the organophosphate, such as paraoxon, parathion, chlorpyrifos, dichlorvos and bis(4-nitrophenyl) phosphate is used as a template, and the porous imprinted polymer having catalytic degradation functions on the organophosphorus compounds is prepared by a solvothermal method..

Description

technical field [0001] The invention relates to the preparation of functional monomers, functional complexes and porous imprinted polymers, in particular, it belongs to the preparation method of functional monomers and porous imprinted polymers capable of catalytically degrading phosphoric acid diesters and phosphoric acid triesters. technical background [0002] Organophosphates are a class of widely used pesticides. Due to their accumulation and migration in nature, they have brought serious ecological and environmental problems and threatened human health. In addition, organophosphates, as nerve agents, have become a deadly chemical warfare agent by inhibiting the inactivation of acetylcholinease, especially in terrorist incidents in recent years, which has greatly endangered public safety. Therefore, it is very urgent and important to prepare new materials that can degrade organophosphorus compounds quickly and efficiently. In terms of safety and effectiveness, natural ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D233/61C07D213/38C08F212/36C08F212/32C08F222/14C08F226/02C08J9/28A62D3/35A62D101/04A62D101/26
Inventor 郭天瑛潘建萍周童童
Owner NANKAI UNIV
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