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A kind of sulfonamide allyl polystyrene cross-linked microsphere and preparation method thereof

A technology of allyl polystyrene and sulfonyl chloride polystyrene, which is applied in the fields of sulfonamide allyl polystyrene cross-linked microspheres allylamine and its preparation, and modified polystyrene cross-linked microspheres, It can solve the problem that allylamine functional microspheres are not reported.

Inactive Publication Date: 2021-08-17
UNION FOSHAN CHEM +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] At present, the functional groups introduced to the surface of microspheres include carboxyl, amino, aldehyde, ketone, ester, sulfonic acid, chloromethyl, halogen, acyl chloride, sulfonyl chloride, etc., which endow microspheres with more new functions ; but there is no report of allylamine functional microspheres that can be polymerized

Method used

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  • A kind of sulfonamide allyl polystyrene cross-linked microsphere and preparation method thereof
  • A kind of sulfonamide allyl polystyrene cross-linked microsphere and preparation method thereof

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Embodiment 1

[0026] A kind of sulfonamide allyl polystyrene cross-linked microspheres, its preparation steps are as follows:

[0027] a), preparation of sulfonyl chloride polystyrene cross-linked microspheres: in parts by weight, add 3 parts of polystyrene cross-linked microspheres with 4.5% cross-linking degree and two 40 parts of methyl chloride, stir to fully swell the microspheres, slowly add 90 parts of chlorosulfonic acid at a controlled temperature of 20°C, raise the temperature to 50°C and keep it warm for 3 hours, after the reaction, cool down to 30°C and let it stand for 8 hours; then at 20°C Add 15mL of distilled water to decompose excess chlorosulfonic acid until there is no large amount of HCl gas released in the solution; add 90mL of distilled water within 1h under stirring to make the product precipitate as much as possible, filter with suction, and use 1,4-diox Washing with six rings to remove the residual solvent, then alternately washing with distilled water and ethanol f...

Embodiment 2

[0030] A kind of sulfonamide allyl polystyrene cross-linked microspheres, its preparation steps are as follows:

[0031] a), preparation of sulfonyl chloride polystyrene cross-linked microspheres: in parts by weight, add 4.5 parts of polystyrene cross-linked microspheres with 5% cross-linking degree and four 72 parts of carbon chloride, stirred to fully swell the microspheres, slowly added 112.5 parts of chlorosulfonic acid at a controlled temperature of 20°C, raised the temperature to 50°C and kept it for 4 hours, and cooled down to 30°C for 8 hours after the reaction; Add 20mL of distilled water at ℃ to decompose excess chlorosulfonic acid until there is no large amount of HCl gas released in the solution; add 100mL of distilled water within 1h under stirring to make the product precipitate as much as possible, filter with suction, and use 1,4-bis Wash with hexane to remove residual solvent, then alternately wash with distilled water and ethanol for 3 to 5 times, filter to d...

Embodiment 3

[0034] A kind of sulfonamide allyl polystyrene cross-linked microspheres, its preparation steps are as follows:

[0035] a), preparation of sulfonyl chloride polystyrene cross-linked microspheres: in parts by weight, add 4 parts of polystyrene cross-linked microspheres with 8% cross-linking degree and 1 , 50 parts of 2-dichloroethane, stir to fully swell the microspheres, slowly add 160 parts of chlorosulfonic acid at a controlled temperature of 20°C, raise the temperature to 50°C and keep it warm for 5 hours, after the reaction, cool down to 30°C and let it stand for 8 hours ; Then add 40mL of distilled water at 20°C to decompose excess chlorosulfonic acid until there is no large amount of HCl gas released in the solution; add 120mL of distilled water within 1h under stirring to make the product precipitate as much as possible, filter with 1 , washed with 4-dioxane to remove the residual solvent, then alternately washed with distilled water and ethanol for 3 to 5 times, filte...

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Abstract

The invention relates to a sulfonamide allyl polystyrene cross-linked microsphere, which is prepared by reacting polystyrene-divinylbenzene cross-linked microspheres with allylamine through chlorosulfonylation reaction; A preparation method of sulfonamide allyl polystyrene crosslinked microspheres is also provided; a kind of sulfonamide allyl polystyrene crosslinked microspheres prepared by the present invention contain allyl reactive groups and can be used in resin , Pigments, coatings, liquid crystals, composite nanomaterials, biomedicine, polyelectrolytes, wastewater treatment, petrochemicals and other industries, have broad application prospects.

Description

technical field [0001] The invention relates to a modified polystyrene cross-linked microsphere, in particular to a sulfonamide allyl polystyrene cross-linked microsphere allylamine and a preparation method thereof, belonging to the technical field of functional materials. Background technique [0002] Polystyrene cross-linked microspheres are the precursor of many functional polymer microspheres. Through further macromolecular reactions, ion exchange resins, chelating resins and adsorption resins can be prepared; catalyst supports can be synthesized for organic synthesis and combinatorial chemistry systems; It can prepare functional polymer microspheres and chromatographic stationary phases for the immobilization, separation and purification of biological macromolecules. [0003] At present, the preparation methods of polystyrene microspheres mainly include dispersion polymerization, emulsion polymerization, soap-free emulsion polymerization, suspension polymerization, seed...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F8/32C08F8/34C08F12/08
CPCC08F8/32C08F8/34C08F12/08
Inventor 许钧强周利军张武阳高军阳京辉
Owner UNION FOSHAN CHEM
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