Preparation method of molecularly imprinted polymer capable of simultaneously adsorbing multiple nitrides

A technology of molecular imprinting and polymer, which is applied in the field of environmental pollution control chemistry, can solve the problems of time-consuming and labor-intensive interaction between templates, etc., and achieve the effects of good selectivity, efficient selective recognition and adsorption, and saving raw materials

Inactive Publication Date: 2015-09-02
JIANGSU UNIV
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Problems solved by technology

The preparation process of multi-template molecularly imprinted polymers mainly involves the question of whether different templates interact with each other. It is time-consuming and laborious to determine whether each template is suitable for preparing the same multi-template imprinted polymer through experimental methods.

Method used

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  • Preparation method of molecularly imprinted polymer capable of simultaneously adsorbing multiple nitrides
  • Preparation method of molecularly imprinted polymer capable of simultaneously adsorbing multiple nitrides
  • Preparation method of molecularly imprinted polymer capable of simultaneously adsorbing multiple nitrides

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Experimental program
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specific Embodiment approach

[0042] Nitrogen-containing compounds in oil mainly include aniline, pyridine, quinoline, pyrrole, indole, carbazole and their derivatives. , indole, and 3-methylindole three nitrogen compounds as examples.

[0043] The first step is to choose the appropriate calculation method

[0044] Using Gaussian 09 software, using density functional theory and NBO charge theory, while calculating the template-monomer complex, the equilibrium correction method is used to eliminate BSSE, considering that the most commonly used density functional theory method "B3LYP" is weak to van der Waals force, etc. Interaction calculations are not accurate enough, so the "WB97XD" method, which fully considers weak interactions, is more suitable for calculations in this study.

[0045]The second step is to select the appropriate functional monomer

[0046] Using aniline, indole, and 3-methylindole as template molecules, 4-vinylpyridine (4VP), acrylamide (AM), and methacrylic acid (MAA), which can form...

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Abstract

The invention provides a molecularly imprinted polymer capable of simultaneously adsorbing multiple nitrides and a preparation method of the molecularly imprinted polymer, and belongs to the technical field of environmental pollution control chemistry. The preparation method comprises the following steps: firstly simulating an imprinting preassembly system based on a density functional theory by using a molecular simulation technology, screening out an optimal functional monomer, and preparing a molecularly imprinted adsorption material based on simulation results by virtue of seeded emulsion polymerization. An adsorbing agent synthesized by using the method provided by the invention is uniform in particle, large in specific surface area and good in adsorption kinetics; and compared with a conventional single template imprinting adsorption material, the molecularly imprinted polymer provided by the invention ensures that multiple imprinted binding sites are successfully formed, and has greater practical values.

Description

technical field [0001] The invention belongs to the technical field of environmental pollution control chemistry, in particular to a preparation method of a molecularly imprinted polymer that simultaneously adsorbs multiple nitrides. Background technique [0002] Nitrodes will affect the performance and stability of the oil, especially during storage, the presence of nitrogen will cause the oil to darken and produce gums and sediments. The combustion of nitrides will generate highly corrosive acid gases, which will be discharged into the atmosphere in the form of nitrogen oxides, seriously polluting the atmosphere, and causing acid rain. In order to meet the requirements of environmental protection and meet the quality of light gasoline and the emission standards of vehicles, petroleum denitrification technology needs to be developed and utilized urgently. The nitrogen-containing compounds in oil mainly include aniline, pyridine, quinoline, pyrrole, indole, carbazole and th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/56C08F220/06C08F226/06
Inventor 徐婉珍马鹏飞杨文明
Owner JIANGSU UNIV
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