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Preparation method of chitosan surface imprinting polymer

A technique of imprinting polymers and surface imprinting, which is applied in the preparation of microspheres, microcapsule preparations, and the magnetism of organic materials/organic magnetic materials, and can solve problems such as difficult storage, slow mass transfer, and low affinity of molecularly imprinted polymers

Inactive Publication Date: 2019-04-02
ZHEJIANG OCEAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Traditional molecularly imprinted polymers have low affinity, slow mass transfer, complex production, high cost, difficult storage, and extremely low recognition ability for target objects

Method used

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Examples

Experimental program
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Embodiment Construction

[0010] Below in conjunction with specific implementation example, the present invention is described in detail; A kind of magnetic Fe 3 o 4 @PEG modified chitosan surface imprinted polymer, characterized in that the chitosan and magnetic Fe 3 o 4 @PEG makes core-shell microspheres, uses template molecules, and prepares imprinted polymers of template molecules.

[0011] The preparation method of the present invention comprises: 1.0 mmol of OFX is used as a template in 10 mL of dimethyl sulfoxide, 4.0 mmol of 3-aminophenylboronic acid is added thereto, and the mixture is stirred for 30 min to fully self-assemble the template and the functional monomer. 1.0gFe 3 o 4 Add PEG-modified chitosan microspheres into 4 mL dimethyl sulfoxide, and ultrasonicate for 5 min to dissolve them completely. Then, the above two solutions were mixed, and 20 mmol EGDMA was added, and the mixture was sonicated for 30 min. 0.4 g PEG was dissolved in dimethyl sulfoxide and water (9:1, v / v) as a di...

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Abstract

The invention provides a preparation method of a chitosan surface imprinting polymer. For solving the problems that a conventional molecularly imprinted polymer in the prior art is low in affinity, isslow in mass transfer, is complex to prepare and high in cost, is difficult to preserve and is very low in recognition capability on a target substance, a magnetic Fe3O4 @ PEG modified chitosan surface imprinting polymer is prepared, wherein the chitosan and the magnetic Fe3O4 @ PEG are processed into a core-shell microsphere. Then with a template molecule, the imprinting polymer of the templatemolecule is produced.

Description

Technical field: [0001] The invention relates to a method for preparing a chitosan surface imprinted polymer, which belongs to the technical field of organic matter manufacturing. Background technique [0002] Molecular imprinting technology is a technique for preparing polymers with specific recognition properties for target molecules, and surface molecular imprinting is one of the research focuses in the field of molecular imprinting technology. Chitosan, a cationic polysaccharide with amino groups, can be used as a carrier for surface molecular imprinting due to its high specific surface area, chemical stability, and biocompatibility. Modified Magnetic Fe 3 o 4 Nanoparticles have better biocompatibility, magnetic properties and dispersibility, and have a narrow particle size distribution, which can quickly and effectively bond with biomolecules. Will Fe 3 o 4 @PEG is mounted on chitosan, and imprinted materials with magnetic properties that can recognize specific mol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F292/00C08F251/00C08J9/26B01J13/02H01F1/42
CPCB01J13/02C08F251/00C08F292/00C08J9/26C08J2351/02C08J2351/10H01F1/42
Inventor 欧阳小琨
Owner ZHEJIANG OCEAN UNIV
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