Vinyl sulfone-functionalized polysulfone membrane and preparation method and application thereof

A vinyl sulfone and functionalization technology, applied in the direction of surface/boundary effects, instruments, analytical materials, etc., can solve problems such as the preparation method of polysulfone membranes without vinyl sulfone groups, and achieve a wide range of substrates and great application prospects , a wide range of effects
CN110343285AActive Publication Date: 2019-10-18DALIAN UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
DALIAN UNIV OF TECH
Publication Date
2019-10-18

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Abstract

The invention discloses a vinyl sulfone-functionalized polysulfone membrane and a preparation method and application thereof. Vinyl sulfone groups are contained on the surface of the vinyl sulfone-functionalized polysulfone membrane, and the preparation method comprises the steps: dissolving the polysulfone particles in an organic solvent, performing chloromethylation, performing a reaction between the obtained material with diethanolamine so as to introduce hydroxyl groups, and performing a reaction between the introduced product with divinyl sulfone under catalytic conditions so as to introduce vinyl sulfone functional groups on the surface of the membrane. Through the prepared vinyl sulfone-functionalized polysulfone membrane, further coupling of functional molecules can be achieved, the substrate has a wide application range, the reaction conditions are mild, the operation is simple, and environmental protection is achieved; and the vinyl sulfone-functionalized polysulfone membraneis a broad-spectrum polysulfone membrane which is a surface-functionalized substrate and has great potential.
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Description

technical field

[0001] The invention belongs to the field of organic compound preparation, and in particular relates to a vinyl sulfone functionalized polysulfone membrane, its preparation method and application.

[0002] technical background

[0003] Polysulfone (PSF) is a translucent engineering plastic with very good mechanical properties, and its mechanical properties can remain good even in high temperature environments. Because of the benzene ring in the polysulfone molecular chain, polysulfone can maintain good mechanical properties at high temperatures; there is a highly oxidized S on the monomer and the two benzene rings around S are conjugated with O=S=O, which makes polysulfone Sulfone material has strong oxidation resistance and good heat resistance. In addition, polysulfone material is relatively soft and easy to process because of the ether bond and isopropylene group on the molecular chain. In summary, the structure of polysulfone material determines its exce...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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