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A kind of microporous polymer copolymer membrane material and preparation method thereof

A polymer copolymer and membrane material technology, applied in the field of microporous polymer copolymer membrane material and its preparation, can solve the problems of solubility, flexibility and poor selectivity, so as to improve selectivity and broaden the application field , The effect of simple reaction steps

Active Publication Date: 2019-08-23
XIAMEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a kind of self-porous polymer with good application value in ion exchange membrane and separation membrane for the solubility, flexibility and poor selectivity of self-porous polymers (PIMs). Molecular copolymer membrane material and preparation method thereof

Method used

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  • A kind of microporous polymer copolymer membrane material and preparation method thereof
  • A kind of microporous polymer copolymer membrane material and preparation method thereof
  • A kind of microporous polymer copolymer membrane material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Dissolve bisphenol A and bis(4-fluorophenyl)sulfone in N,N'-dimethylacetamide, under the protection of inert gas, add potassium carbonate, stir at 50℃~200℃ for 5~20h , adding 3,4-dimethoxyphenol to obtain oligomer A. Wherein, the ratio of bisphenol A and bis(4-fluorophenyl) sulfone is 1:2~100:101, and the ratio of bisphenol A and 3,4-dimethoxyphenol is 100︰1~1︰1, the dosage of N,N'-dimethylacetamide is 1~100ml per gram of monomer.

[0045] Dissolving methoxy-based polyethersulfone in chloroform, under the protection of inert gas, reacted with boron tribromide for 1-20 hours to obtain hydroxyl-based polyethersulfone. Wherein, the ratio of the amount of methoxy polyethersulfone to boron tribromide is 1:1-1:100, and the amount of chloroform added is 1-100ml per gram of solid.

[0046] Combine the obtained hydroxyl polyethersulfone with 5,5',6,6'-tetrahydroxy-3,3,3',3'-tetramethyl-1,1'-spirobisindane and tetrafluoroparaphenylene Dissolve dinitrile in N,N'-dimethylformami...

Embodiment 2

[0052]Dissolve 5,5',6,6'-tetrahydroxy-3,3,3',3'-tetramethyl-1,1'-spirobisindane and tetrafluoroterephthalonitrile in N,N' - In dimethylformamide solvent, under the protection of inert gas, and under the action of potassium carbonate, polycondensation reaction is carried out to obtain oligomer fluorine-based self-porous macromolecules. Among them, the amount of 5,5',6,6'-tetrahydroxy-3,3,3',3'-tetramethyl-1,1'-spirobisindane and tetrafluoroterephthalonitrile The ratio is 1:2~100:110. The dosage of N,N'-dimethylformamide is 1-100ml per gram of monomer.

[0053] Dissolve the oligomer fluorine-based polymer with microporous polymers and the hydroxyl-based polyethersulfone in Example 1 in N,N'-dimethylformamide, and add potassium carbonate under the protection of an inert gas to carry out polycondensation reaction Polycondensation reaction is carried out to obtain macromolecule, that is, self-polymerized microporous macromolecular block copolymer (PIM-1-b-PES) of the target produ...

Embodiment 3

[0059] Dissolve tetramethylbisphenol A and bis(4-fluorophenyl)sulfone in N,N'-dimethylacetamide, add potassium carbonate under the protection of inert gas, and stir at 50°C to 200°C for 5 ~20h later, add 3,4-dimethoxyphenol to obtain methoxy tetramethyl polyethersulfone. Wherein, the ratio of tetramethylbisphenol A to bis(4-fluorophenyl) sulfone is 1:2~100:101, the ratio of tetramethylbisphenol A to 3,4-dimethoxyphenol The ratio of the amount of substances is 100:1-1:1, and the amount of N,N'-dimethylacetamide is 1-100ml per gram of monomer.

[0060] Dissolving methoxy tetramethyl polyether sulfone in chloroform, under the protection of inert gas, reacted with boron tribromide for 1-20 hours to obtain hydroxyl tetramethyl polyether sulfone. Wherein, the ratio of the amount of methoxy tetramethyl polyether sulfone to boron tribromide is 1:1-1:100, and the amount of chloroform added is 1-100ml per gram of solid.

[0061] Combine the obtained hydroxyl tetramethyl polyethersulfo...

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Abstract

The invention relates to a high-molecular copolymer, and concretely relates to an intrinsically-microporous high-molecular copolymer film material and a preparation method thereof. An intrinsically-microporous high-molecular chain segment in the structural formula of the material is provided by an intrinsically-microporous high-molecular monomer or oligomer, is composed of a polyethersulfone segment and an intrinsically-microporous high-molecular chain segment, has the structural characteristics of the two high molecules, and has the characteristics of strong chain structure adjustability, andgood physical, chemical and thermal stability. The synthesis method comprises the following steps: synthesizing a methoxy-terminated polyethersulfone oligomer, and removing a methoxy group to form ahydroxypolyethersulfone oligomer; and copolymerizing the hydroxypolyethersulfone oligomer and the intrinsically-microporous high-molecular monomer to synthesize a random copolymer, or polymerizing thehydroxypolyethersulfone oligomer and the intrinsically-microporous high-molecular oligomer to produce a block copolymer. The synthesized high-molecular copolymer has wide application prospects in thefields of gas separation, ion conducting ions, nanofiltration and other film materials.

Description

technical field [0001] The invention relates to a polymer copolymer, in particular to a polymer copolymer membrane material with self-contained micropores and a preparation method thereof. Background technique [0002] Membrane separation is a new type of separation technology that utilizes the different rates of different components to permeate the membrane under the drive of partial pressure difference to achieve separation or enrichment. It has the advantages of small equipment size, simple operation, low energy consumption, and environmental friendliness. 【1-3】 . Its core is a separation membrane with excellent performance, which should have excellent permeability and selectivity at the same time. Because high permeability means that the membrane area can be reduced, reducing equipment investment costs, and good selectivity means that products with higher purity can be obtained. Polymer membranes are widely used in the preparation of gas separation membranes due to the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G65/40C08G65/48
Inventor 张秋根陈蒙蒙蔡庚鑫刘庆林
Owner XIAMEN UNIV
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