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Method for preparing high polyiodine-polyethersulfone electrospun membrane by irradiation

A technology of polyethersulfone and high polyiodine, which is applied in the direction of electrospinning, textiles and papermaking, and single-component synthetic polymer rayon, etc., can solve the problems that radiation reduction cannot be completed, and achieve a wide range of practical application value and increase Specific surface area, guaranteed long-lasting effect

Active Publication Date: 2021-02-05
SICHUAN INST OF ATOMIC ENERGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This preparation method realizes the grafting of hydrophilic monomers in a system solvent, but cannot complete the purpose of generating high-polyiodine antibacterial components through irradiation reduction

Method used

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  • Method for preparing high polyiodine-polyethersulfone electrospun membrane by irradiation
  • Method for preparing high polyiodine-polyethersulfone electrospun membrane by irradiation
  • Method for preparing high polyiodine-polyethersulfone electrospun membrane by irradiation

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Experimental program
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Effect test

Embodiment 1

[0042] A method for preparing high-polyiodine-polyethersulfone electrospun membranes by irradiation, using 60 Co-γ-ray radiation grafting method, immobilizing high-polyiodine on the polyethersulfone segment in the reaction system, and then using electrospinning to obtain high-polyiodine-polyethersulfone electrospun membrane.

Embodiment 2

[0044] A method for preparing high-polyiodine-polyethersulfone electrospun membranes by irradiation, using 60 Co-γ-ray radiation grafting method, immobilizing high-polyiodine on the polyethersulfone segment in the reaction system, and then using electrospinning to obtain high-polyiodine-polyethersulfone electrospun membrane.

[0045] Wherein, the reaction system is a binary reaction system, including reaction system I and reaction system II;

[0046] Reaction system Ⅰ: Put 5g of polyethersulfone and 5g of acrylic acid in N-methylpyrrolidone, stir until completely dissolved, and obtain it; wherein, the ratio of the total mass of polyethersulfone and acrylic acid to the mass of N-methylpyrrolidone is 10% ;

[0047] Reaction system II: Put 0.2g of iodine and 0.05g of potassium iodide in methanol, and stir in an ice-water bath until completely dissolved to obtain the product; wherein, the ratio of the total mass of iodine and potassium iodide to the mass of methanol is 2%.

Embodiment 3

[0049] A method for preparing high-polyiodine-polyethersulfone electrospun membranes by irradiation, using 60 Co-γ-ray radiation grafting method, immobilizing high-polyiodine on the polyethersulfone segment in the reaction system, and then using electrospinning to obtain high-polyiodine-polyethersulfone electrospun membrane.

[0050] Wherein, wherein, the reaction system is a binary reaction system, including reaction system I and reaction system II;

[0051] Reaction system Ⅰ: put 20g polyethersulfone and 0.05g N-vinylpyrrolidone in N,N-dimethylformamide, stir until completely dissolved, and obtain; among them, polyethersulfone and N-vinylpyrrolidone The ratio of mass to N,N-dimethylformamide mass is 25%;

[0052] Reaction system II: put 2g of iodine and 0.5g of potassium iodate in ethanol, and stir in an ice-water bath until they are completely dissolved; the ratio of the total mass of iodine and potassium iodate to the mass of ethanol is 10%.

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Abstract

The invention discloses a method for preparing a high polyiodine-polyethersulfone electrospun membrane by irradiation, and belongs to the technical field of electrospun membrane preparation. Accordingto the technical scheme, the high polyiodine-polyethersulfone electrospun membrane is prepared through a Co-gamma radiation grafting polymerization reaction, high polyiodine and carbonyl on a reaction monomer (acrylic acid or N-vinyl pyrrolidone) are subjected to a complexation reaction in trivalent and pentavalent forms, and thus a stable high polyiodine complex is formed; meanwhile, breaking ofdouble bonds on the reaction monomer is initiated by radiation to form a polymer, and the polymer and a polyethersulfone main chain are subjected to a grafting reaction, so that high polyiodide is immobilized, and the antibacterial high polyiodide-polyethersulfone polymer with high efficiency and slow release is formed; high polyiodine is stabilized, and meanwhile, polyethersulfone is endowed with efficient antibacterial property; besides, a reaction system is carried out in a homogeneous solution, so that the uniformity of the radiation grafting reaction is ensured, the problem of dissolution of the high-grafting polymer in a same system solvent is avoided, and the method has wide practical application value.

Description

technical field [0001] The present invention relates to a preparation method of polyethersulfone electrospun membrane, in particular to a method for preparing a high-polyiodine-polyethersulfone electrospun membrane suitable for hemodialysis or hemodiafiltration or hemofiltration by irradiation method The method belongs to the technical field of electrospun membrane preparation. Background technique [0002] Polyethersulfone (PES) is prepared by condensing 4,4'-bissulfonyl chloride diphenyl ether with diphenyl ether under the catalysis of anhydrous ferric chloride. Due to its chemical resistance, good thermal stability, and good processing performance, it has been widely used in the fields of filtration and hemodialysis. However, due to the strong hydrophobicity and biological inertness of polyethersulfone, it has disadvantages such as low ultrafiltration rate, severe residual blood coagulation, easy protein adsorption, and difficult cleaning and reuse when used alone, which...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D04H1/4382D04H1/728D01D5/00D01F6/94C08G75/23
CPCD04H1/4382D04H1/728D01D5/003D01D5/0092D01D5/0061D01F6/94C08G75/23
Inventor 王静霞倪茂君彭朝荣张晓彬陈浩陈屿恒刘思阳张婧钟玮鸿
Owner SICHUAN INST OF ATOMIC ENERGY
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