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Polyethersulfone grafted polyethylene glycol methacrylate copolymer, film and preparation method thereof

A technology of polyethylene glycol methacrylate and polyethersulfone, which is applied in the field of polymer substrates, can solve the problems of polyethersulfone membrane flux, clogging, and material properties, and achieve excellent filtration performance , flexible application, and improved performance

Pending Publication Date: 2020-10-02
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to solve the problems of the prior art, the purpose of the present invention is to overcome the deficiencies in the prior art, provide a polyethersulfone grafted polyethylene glycol methacrylate copolymer, a film and a preparation method thereof, and overcome the disadvantages of the prior art. When the surface of polyethersulfone membrane (PES membrane) is grafted with polyethylene glycol methacrylate (PEGMA) monomer by ultraviolet light, some bands of ultraviolet light have obvious degradation effect on polyethersulfone, which will The properties of the material itself have an impact, and grafting on the surface of the polyethersulfone membrane will easily form a graft chain that blocks the pores of the polyethersulfone membrane, which has a greater impact on the flux of the polyethersulfone membrane. A kind of polyethersulfone grafted polyethylene glycol methacrylate copolymer, film and preparation method

Method used

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  • Polyethersulfone grafted polyethylene glycol methacrylate copolymer, film and preparation method thereof
  • Polyethersulfone grafted polyethylene glycol methacrylate copolymer, film and preparation method thereof
  • Polyethersulfone grafted polyethylene glycol methacrylate copolymer, film and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] In this embodiment, a preparation method of polyethersulfone grafted polyethylene glycol methacrylate copolymer, the steps are as follows:

[0044] a. Co-radiation grafting reaction process:

[0045] Weigh 10g of pretreated polyethersulfone (PES) powder, dissolve it in 89g of DMAc solvent, add 1g of polyethylene glycol methacrylate monomer (PEGMA) monomer, stir for 24h, and obtain the reactant homogeneous Phase solution, through N 2 After more than 15min, place the homogeneous solution in 60 C O Under the source, the co-radiation reaction was carried out at 25°C, the radiation dose rate was 1.67kGy / h, and the total radiation dose of the co-radiation grafting reaction was 10kGy;

[0046] b. Post-treatment of grafted reaction products:

[0047] After the irradiation reaction is completed, the homogeneous solution obtained after the co-radiation grafting reaction in the step a is carried out aftertreatment; the operation of the aftertreatment is carried out according t...

Embodiment 2

[0050] This embodiment is basically the same as Embodiment 1, especially in that:

[0051] In this embodiment, a preparation method of polyethersulfone grafted polyethylene glycol methacrylate copolymer, the steps are as follows:

[0052] a. Co-radiation grafting reaction process:

[0053] Weigh 10g of pretreated polyethersulfone (PES) powder, dissolve it in 85g of DMAc solvent, add 5g of polyethylene glycol methacrylate monomer (PEGMA) monomer, stir for 24h, and obtain the reactant homogeneous Phase solution, through N 2 After more than 15min, place the homogeneous solution in 60 C O Under the source, the co-radiation reaction was carried out at 25°C, the radiation dose rate was 1.67kGy / h, and the total radiation dose of the co-radiation grafting reaction was 10kGy;

[0054] b. This step is the same as in Embodiment 1.

Embodiment 3

[0056] This embodiment is basically the same as the previous embodiment, and the special features are:

[0057] In this embodiment, a preparation method of polyethersulfone grafted polyethylene glycol methacrylate copolymer, the steps are as follows:

[0058] a. Co-radiation grafting reaction process:

[0059] Weigh 10g of pretreated polyethersulfone (PES) powder, dissolve it in 81g of DMAc solvent, add 9g of polyethylene glycol methacrylate monomer (PEGMA) monomer, stir for 24h, and obtain the reactant homogeneous Phase solution, through N 2 After more than 15min, place the homogeneous solution in 60 C O Under the source, the co-radiation reaction was carried out at 25°C, the radiation dose rate was 1.67kGy / h, and the total radiation dose of the co-radiation grafting reaction was 10kGy;

[0060] b. This step is the same as in Embodiment 1.

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Abstract

The invention discloses a polyethersulfone grafted polyethylene glycol methacrylate copolymer, a film and a preparation method thereof. The preparation method includes following steps: pretreatment: washing and drying a raw material polyethersulfone and drying the polyethersulfone to constant weight; mixing the polyethersulfone with a polyethylene glycol methacrylate monomer to prepare a homogeneous solution, and carrying out a co-radiation grafting reaction on the polyethylene glycol methacrylate monomer and the polyethersulfone in the homogeneous solution containing the polyethylene glycol methacrylate monomer and the polyethersulfone; carrying out post-treatment on a homogeneous solution obtained after the co-radiation grafting reaction; and carrying out reversed-phase precipitation onthe homogeneous solution obtained after the co-radiation grafting reaction in deionized water, washing the obtained solid, soaking the washed solid in deionized water, and carrying out vacuum drying to a constant weight. The PES material body is subjected to PEGMA grafting, graft copolymers with different grafting rates can be prepared according to needs, the application is more flexible, and theperformance of the graft copolymers is also improved.

Description

technical field [0001] The invention relates to a polyethersulfone grafted polyethylene glycol methyl ether methacrylate monomer copolymer, a film and a preparation method, which are applied in the technical field of polymer substrates. Background technique [0002] At present, membrane separation technology is widely used in petroleum industry, seawater desalination, sewage treatment, gas separation and other fields. Its advantages are good separation accuracy, green and pollution-free, and convenient operation. As the core of membrane separation technology, membrane has attracted widespread attention. . Polyethersulfone (PES) is a polymer substrate widely used in industry with superior mechanical properties. Its molecular structure is composed of ether groups, sulfone groups and phenylene groups. The ether groups endow the polymer molecular chain with Flexibility, while the sulfone group and phenylene endow the polymer with excellent thermodynamic properties and processin...

Claims

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Application Information

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IPC IPC(8): C08G81/00C08J5/18C08L87/00
CPCC08G81/00C08J5/18C08J2387/00
Inventor 娄丹刘引烽樊凯侯铮迟杨海军
Owner SHANGHAI UNIV
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