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A kind of multifunctional amphiphilic comb polymer modifier and its preparation method and application

A comb-type polymer and amphiphilic technology, which is applied in the field of multifunctional amphiphilic comb-type polymer modifiers, can solve the problems of general anti-fouling effect, achieve increased chemical heterogeneity, increased surface roughness, good compatibility

Active Publication Date: 2018-05-08
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A simple anti-fouling effect is general

Method used

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  • A kind of multifunctional amphiphilic comb polymer modifier and its preparation method and application
  • A kind of multifunctional amphiphilic comb polymer modifier and its preparation method and application
  • A kind of multifunctional amphiphilic comb polymer modifier and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Example 1: Preparation of amphiphilic comb copolymers in this example

[0037] 1) Take 5g PEGMA, 3g PDMSMA, 2g KH570, 0.6g benzoyl peroxide, 30g butyl acetate. Divide 2,2-azobisisobutyronitrile into three parts, the first part is 0.028g, the second part is 0.144g, the third part is 0.028g, and the butyl acetate is divided into two parts, the first part is 2g, the second serving is 8g.

[0038] 2) Dissolve the first part of benzoyl peroxide in the first part of butyl acetate, put it into a condensing tube and N 2 The three-necked flask of the blowing device is preheated to 70°C;

[0039]3) all PEGMA, PDMSMA, KH570 and the second part of benzoyl peroxide are dissolved in the second part of butyl acetate, put into a constant pressure dropping funnel, and added dropwise to the there-necked flask of step 2), and The dripping was controlled within 2h, under nitrogen protection, after 12h of polymerization reaction, the third part of benzoyl peroxide was added, the temperat...

Embodiment 2

[0042] Example 2: Preparation of amphiphilic comb copolymers in this example

[0043] 1) Take 7g PEGMA, 2g PDMSMA, 1g KH570, 0.3g 2,2-azobisisobutyronitrile, and 30g propylene glycol methyl ether acetate. Divide 2,2-azobisisobutyronitrile into three parts, the first part is 0.069g, the second part is 0.162g, the third part is 0.069g, and propylene glycol methyl ether acetate is divided into two parts, the first part is 0.162g, the third part is 0.069g One serving is 8.1 g and the second serving is 21.9 g.

[0044] 2) Dissolve the first part of 2,2-azobisisobutyronitrile in the first part of propylene glycol methyl ether acetate, put it into a condenser tube and N 2 The three-necked flask of the blowing device is preheated to 80°C;

[0045] 3) Dissolve all PEGMA, PDMSMA, KH570, and the second part of 2,2-azobisisobutyronitrile in the second part of propylene glycol methyl ether acetate, put it into a constant pressure dropping funnel, and add step 2) by dropwise addition) In...

Embodiment 3

[0048] Example 3: Preparation of amphiphilic comb copolymers in this example

[0049] 1) Take 8g PEGMA, 1g PDMSMA, 0.4g benzoyl peroxide, 20g methyl ethyl ketone. Divide the benzoyl peroxide into three parts, the first part is 0.076g, the second part is 0.256g, the third part is 0.068g, and the methyl ethyl ketone is divided into two parts, the first part is 5g, and the third part is 0.068g. Two servings are 15g.

[0050] 2) Dissolve the first part of benzoyl peroxide in the first part of methyl ethyl ketone, put it into a condensing tube and N 2 The three-necked flask of the blowing device is preheated to 70°C;

[0051] 3) Dissolve all PEGMA, PDMSMA, KH570 and the second part of benzoyl peroxide in the second part of methyl ethyl ketone, put into a constant pressure dropping funnel, and add dropwise to the there-necked flask of step 2). , and controlled to finish dropping within 2h, under nitrogen protection, after 12h of polymerization reaction, add the third part of benz...

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Abstract

The invention discloses a multifunctional amphiphilic comb polymer modifier, a preparation method and application thereof. The preparation method of the modifying agent involved is as follows: polydimethylsiloxane monomethyl ether-methacrylate (PDMSMA), polyethylene glycol monomethyl ether-methacrylate (PEGMA), γ-methyl Acryloyloxypropyltrimethoxysilane (KH570), initiator and solvent are prepared as raw materials, free radical polymerization is carried out under nitrogen protection, and modifier is obtained after treatment. The modifier, nanoparticle precursor and membrane material are dissolved in a solvent at a certain mass ratio, and an organic-inorganic composite modified ultrafiltration membrane is prepared in situ. The surface of the modified membrane presents amphiphilic anti-fouling micro-domains with hydrophilic and hydrophobic low surface energy, and has a certain rough scale. The preparation method of the modifying agent in the invention is simple, the modification of the membrane is easy to realize, and the modified membrane has good antifouling effect and can be used for sewage treatment.

Description

technical field [0001] The invention relates to a multifunctional amphiphilic comb-type polymer modifier and its preparation method and application. Background technique [0002] Industrial sewage and urban domestic sewage are the most important two types of sewage resources. my country's urban sewage is about 800 million cubic meters per year, which is almost equal to the amount of tap water. This part of the water contains only 0.1% of pollutants, and most of the rest exists in the form of water sources, becoming the second sewage resource in cities. The recycling of industrial sewage can not only save a lot of fresh water resources, but also reduce sewage discharge and achieve the purpose of protecting the environment. [0003] Ultrafiltration membranes, which are widely used in sewage treatment, are susceptible to protein pollution: they are prone to specific interaction with organic biomass such as proteins in solution, resulting in serious membrane fouling, reducing m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F220/28C08F230/08C08F283/12C08F283/06C08F291/06C08L27/16C08L51/08C08L33/14C08J5/18C02F1/44
CPCC02F1/444C08F220/28C08F283/06C08F283/12C08J5/18C08L27/16C08J2327/16C08J2433/14C08F220/282C08F230/08C08L33/062C08L51/08
Inventor 张庆华张广法高帆何韧詹晓力陈丰秋
Owner ZHEJIANG UNIV