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Preparation method and application of metal ion neutral-meson morpholine molecularly imprinted polymer

A molecular imprinting and metal ion technology, applied in chemical instruments and methods, other chemical processes, etc., can solve the problems of long cycle, many operation steps, high input cost, and achieve strong use value, strong adsorption capacity, and high selectivity. Effect

Inactive Publication Date: 2014-08-06
JISHOU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method has many steps, a long cycle, a lot of equipment required, limited production capacity, and high input costs.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] (1) Add 0.1mmol of morpholine, 0.42mmol of 4-vinylpyridine, 0.57mol of cobalt metal ion, 200ul of dimethyl sulfoxide, and 200ul of acetonitrile into the container, and make a pre-polymerization solution by ultrasonication for 12 minutes, and then let it stand for 37 minutes , then add 1.1mmolEDMA, 9mgAIBN, pass argon for 18min, mix well, seal, and react in a 60°C water bath for 24 hours;

[0019] (2) After the polymerization is completed, grind, sieve, settle with methanol and acetone, and then use a methanol-acetic acid mixed solvent with a volume ratio of 9:1 to elute the template molecule morpholine until the template molecule cannot be detected in the eluent, vacuum Dry it for 16 hours.

[0020] The metal ion intermediary morpholine molecularly imprinted polymer obtained in the present invention has high selectivity to morpholine molecules and has a certain amount of adsorption, so the morpholine molecularly imprinted polymer obtained in the present invention can be...

Embodiment 2

[0022] (1) Add 0.1mmol of morpholine, 0.77mmol of 4-vinylpyridine, 0.31mol of cobalt metal ion, 200ul of dimethyl sulfoxide, and 200ul of acetonitrile into the container, and make a pre-polymerization solution by ultrasonication for 19 minutes, and then let it stand for 22 minutes , then add 1.9mmolEDMA, 9mgAIBN, pass argon for 11min, mix well, seal, and react in a 60°C water bath for 24 hours;

[0023] (2) After the polymerization is completed, grind, sieve, settle with methanol and acetone, and then use a methanol-acetic acid mixed solvent with a volume ratio of 9:1 to elute the template molecule morpholine until the template molecule cannot be detected in the eluent, vacuum Dry it for 28 hours.

[0024] The metal ion intermediary morpholine molecularly imprinted polymer obtained in the present invention has high selectivity to morpholine molecules and has a certain amount of adsorption, so the morpholine molecularly imprinted polymer obtained in the present invention can be...

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Abstract

The invention discloses a preparation method and an application for a metal ion neutral-meson morpholine molecularly imprinted polymer. The method comprises the following steps of: (1) adding morpholine, 4-vinyl pyridine, metal cobalt (II) ions, dimethyl sulfoxide and acetonitrile in a container, ultrasonically preparing prepolymerization solution, standing, then adding EDMA (ethylene glycol dimethacrylate) and AIBN (2,2-azobisisobutyronitrile), charging argon, uniformly mixing, sealing, and reacting for 24 hours in a 60 DEG C water bath; and (2) after polymerization is finished, grinding, sieving, settling by using methyl alcohol and acetone, then eluting template molecule morpholine by using a solvent, and drying in vacuum. The morpholine molecularly imprinted polymer obtained by the method disclosed by the invention has high selective absorption capacity to the morpholine molecules, can be used for solid-phase extraction of morpholine, and is applicable to the needs of some special occasions.

Description

technical field [0001] The invention relates to a preparation method and application of a metal ion-mediated mesomorpholine molecularly imprinted polymer. Background technique [0002] Molecular imprinting technology is a new technology to artificially prepare molecularly imprinted polymers with highly selective recognition properties for target compounds. Generally speaking, first, the template molecule and the functional monomer form a functional monomer-template molecule complex through covalent or non-covalent interaction, also known as the host-guest complex (Host-guest complex); then add a cross-linking agent, through The initiator triggers the polymerization reaction to form a highly cross-linked polymer, and the template molecules in the polymer are removed by solvent elution, thereby leaving the template molecules in the molecularly imprinted polymer matrix in terms of size, shape and functional groups. Matching imprinted holes, namely imprinted sites, these adsorp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F226/06C08F222/14C08J9/26B01J20/26B01J20/30
Inventor 李辉许苗苗李亚男李志平李昱琢王素素
Owner JISHOU UNIVERSITY
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