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Multifunctional amphiphilic terpolymer as well as preparation method and application thereof

A terpolymer and amphiphilic technology, applied in the field of multifunctional amphiphilic terpolymer and its preparation, can solve the problems of PES ultrafiltration membrane fouling and other problems, achieve novel structure, expand application fields, and prolong use effect of life

Inactive Publication Date: 2016-05-18
XIAMEN UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the membrane fouling problem of the PES ultrafiltration membrane and endow the membrane with excellent pH response performance, the object of the present invention is to provide a multifunctional amphiphilic terpolymer and its preparation method

Method used

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  • Multifunctional amphiphilic terpolymer as well as preparation method and application thereof
  • Multifunctional amphiphilic terpolymer as well as preparation method and application thereof
  • Multifunctional amphiphilic terpolymer as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] This example is used to prepare the multifunctional amphiphilic terpolymer provided by the present invention.

[0038] 2.0ml MMA (purchased from Shanghai Aladdin Biochemical Technology Co., Ltd.), 2.8ml 4-VPy (purchased from Sigma-Aldrich Company), 5.3ml PEGMA (m=8, (purchased from Sigma-Aldrich Company) was dissolved in 25.0ml of DMF, then 51.9mgAIBN (purchased from Shanghai Aladdin Biochemical Technology Co., Ltd.) was added to the mixture, stirred evenly, and then bubbled with argon for 30min (deoxygenation), bubbling After completion, the reaction bottle was sealed and placed in an oil bath at 75°C for 24 hours. Then the reaction solution was precipitated in ether, filtered with suction and washed to remove unreacted monomer, initiator and solvent. The product was dried under vacuum at 70° C. for 24 h to finally obtain 8.5 g of solid with a yield of 84.2%.

[0039] According to the product 1 As a result of the HNMR test, the product has absorption peaks at δ=3.57...

Embodiment 2

[0044] This example is used to prepare the multifunctional amphiphilic terpolymer provided by the present invention.

[0045] 2ml MMA (purchased from Shanghai Aladdin Biochemical Technology Co., Ltd.), 4.8ml 4-VPy (purchased from Sigma-Aldrich Company), 4.4ml PEGMA (m=8, (purchased from Sigma-Aldrich Company) was dissolved in 30ml of DMAc, and then 49.6mgAIBN (purchased from Shanghai Aladdin Biochemical Technology Co., Ltd.) was added to the mixture, stirred evenly and then bubbled with argon for 20min (deoxygenation), and the bubbling was completed Finally, the reaction bottle was sealed and placed in an oil bath at 65°C for 32 hours. Then, the reaction solution was precipitated in methanol, suction filtered and washed to remove unreacted monomers, initiators and solvents. The product was dried under vacuum at 60° C. for 32 h to finally obtain 9.3 g of solid with a yield of 83%.

[0046] According to the product 1 As a result of the HNMR test, the product has absorption p...

Embodiment 3

[0050] This example is used to prepare the multifunctional amphiphilic terpolymer provided by the present invention.

[0051] 3.5ml MMA (purchased from Shanghai Aladdin Biochemical Technology Co., Ltd.), 2ml4-VPy (purchased from Sigma-Aldrich Company), 6.8ml PEGMA (m=8, (purchased from Sigma-Aldrich Company) was dissolved in 35ml of DMSO, and then 31.2mgAIBN (purchased from Shanghai Aladdin Biochemical Technology Co., Ltd.) was added to the mixture, stirred evenly and then bubbled with argon for 25min (deoxygenation), and the bubbling was completed Finally, the reaction bottle was sealed and placed in an oil bath at 70°C for 28 hours. Then the reaction solution was precipitated in ether, filtered with suction and washed to remove unreacted monomer, initiator and solvent. The product was dried under vacuum at 65° C. for 28 h, and finally 10.6 g of solid was obtained with a yield of 86.2%.

[0052] According to the product 1 As a result of HNMR testing, the product has absor...

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Abstract

The invention discloses a multifunctional amphiphilic terpolymer as well as a preparation method and application thereof, and relates to the technical fields of high polymer chemistry and separation membrane. The multifunctional amphiphilic terpolymer is a random copolymer and consists of three parts: a hydrophobic chain segment methyl methacrylate, a chain segment 4-vinyl pyridine with a pH response group and a hydrophilic chain segment polyethylene glycol monomethyl ether methacrylate. The preparation method comprises the following steps: dissolving three monomers MMA, 4-VPy and PEGMA in a solvent; adding an initiator and stirring; introducing a gas, bubbling and removing oxygen; sealing the reaction bottle and putting in an oil bath for reaction; precipitating the reaction liquid in a precipitating agent; performing suction filtration and washing to remove unreacted monomer, initiator and solvent; and drying to obtain the multifunctional amphiphilic terpolymer. The multifunctional amphiphilic terpolymer can be used for preparing an anti-pollution pH-response polyether sulfone ultrafiltration membrane. The structure is novel, the synthesis method is simple, and the structure can be selectively controlled through the synthesis conditions.

Description

technical field [0001] The invention relates to the technical fields of polymer chemistry and separation membranes, in particular to a multifunctional amphiphilic terpolymer and its preparation method and application. Background technique [0002] Ultrafiltration membrane is a type of differential pressure driven separation membrane, which has the characteristics of low operating pressure, low energy consumption and simple process. It is widely used in tap water purification, seawater desalination, industrial wastewater treatment, protein concentration and other fields. Polyethersulfone (PES) is an ultrafiltration membrane material with excellent performance. It has excellent oxidation resistance and thermal stability, high mechanical strength, good creep resistance, acid resistance, alkali resistance and corrosion resistance. Influenced by general chemical reagents (J.Membr.Sci.2004,233,101-111). However, due to the strong hydrophobicity of the PES ultrafiltration membrane...

Claims

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Application Information

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IPC IPC(8): C08F220/28C08F226/06C08F220/14C08F283/06B01D67/00B01D69/02B01D71/68
CPCB01D67/0013B01D69/02B01D71/68B01D2325/36B01D2325/38C08F220/28C08F220/286C08F226/06C08F283/065C08F2500/26C08F220/14
Inventor 何旭敏刘建李振峰夏海平孙洪贵兰秀娟
Owner XIAMEN UNIV
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