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A kind of quaternized polymer brush antibacterial material based on si-atrp method and preparation method thereof

A technology of polymer brushes and antibacterial materials, applied in botany equipment and methods, chemicals for biological control, animal repellants, etc., can solve the problems of silver ion instability, low antibacterial immediate effect, heat resistance Insufficient resistance and other problems, to achieve the effect of easy industrial production, low cost, good antibacterial performance

Active Publication Date: 2020-12-22
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These methods have the advantages of high temperature resistance, low toxicity, non-volatility, and high spectral efficiency, but there are also problems such as the instability of silver ions, high cost, and low antibacterial immediate effect.
[0004] Organic antibacterial agents destroy cell membranes through chemical reactions to denature proteins and block metabolism. They have the advantages of strong bactericidal power, good immediate effect, and low cost, but they may have disadvantages such as toxicity, poor safety, and poor heat resistance. At present, organic antibacterial agents are rarely used in the antibacterial modification of glass materials

Method used

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  • A kind of quaternized polymer brush antibacterial material based on si-atrp method and preparation method thereof
  • A kind of quaternized polymer brush antibacterial material based on si-atrp method and preparation method thereof
  • A kind of quaternized polymer brush antibacterial material based on si-atrp method and preparation method thereof

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Effect test

Embodiment 1

[0039] A kind of preparation method of the quaternized polymer brush antibacterial material based on Si-ATRP method, comprises the following steps:

[0040] (1) Hydroxylation and amination treatment of glass and fixation of initiator

[0041] (1-1) Use a glass sheet with a size of 20*10mm, soak it in a solution of methanol:HCl (V:V)=1:1 for 30 minutes, then ultrasonically clean it in ethanol and deionized water for 15 minutes, and then place it in a concentration of Soak in 1mol / L sodium hydroxide solution for 1 hour, wash the glass slide with a large amount of deionized water, blow it dry with nitrogen, put it in a drying oven at 60°C and dry it thoroughly to obtain hydroxylated glass;

[0042] (1-2) Configure a 3-aminopropyltriethoxysilane water (APTES) solution with a volume fraction of 1% (it needs to be stirred at room temperature (25°C) for 2 hours during preparation, and mixed with 0.22um 2 filter membrane); soak the hydroxylated glass sheet in APTES aqueous solution f...

Embodiment 2

[0051] A kind of preparation method of the quaternized polymer brush antibacterial material based on Si-ATRP method, comprises the following steps:

[0052] (1) Hydroxylation and amination treatment of glass and fixation of initiator

[0053] (1-1) Use a glass sheet with a size of 20*10mm, soak it in a solution of methanol:HCl (V:V)=1:1 for 30 minutes, then ultrasonically clean it in ethanol and deionized water for 15 minutes, and then place it in a concentration of Soak in 1mol / L sodium hydroxide solution for 2 hours, wash the glass slide with a large amount of deionized water, blow dry with nitrogen, put it in a drying oven at 60°C and dry it thoroughly to obtain hydroxylated glass;

[0054] (1-2) Configure a 3-aminopropyltriethoxysilane water (APTES) solution with a volume fraction of 1% (it needs to be stirred at room temperature (25°C) for 2 hours during preparation, and mixed with 0.22um 2 filter membrane); soak the hydroxylated glass sheet in APTES aqueous solution for...

Embodiment 3

[0061] A kind of preparation method of the quaternized polymer brush antibacterial material based on Si-ATRP method, comprises the following steps:

[0062] (1) Hydroxylation and amination treatment of glass and fixation of initiator

[0063] (1-1) Use a glass sheet with a size of 20*10mm, soak it in a solution of methanol:HCl (V:V)=1:1 for 30 minutes, then ultrasonically clean it in ethanol and deionized water for 15 minutes, and then place it in a concentration of Soak in 1mol / L sodium hydroxide solution for 2 hours, wash the glass slide with a large amount of deionized water, blow dry with nitrogen, put it in a drying oven at 60°C and dry it thoroughly to obtain hydroxylated glass;

[0064] (1-2) Configure a 3-aminopropyltriethoxysilane water (APTES) solution with a volume fraction of 1% (it needs to be stirred at room temperature (25°C) for 2 hours during preparation, and mixed with 0.22um 2 filter membrane); soak the hydroxylated glass sheet in APTES aqueous solution for...

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Abstract

The invention belongs to the technical field of material modification and discloses a quaternized polymer brush antibacterial material based on a Si-ATRP (Surface-initiated Atom Transfer Radical Polymerization) method and a preparation method of the antibacterial material. The method comprises the following steps: (1) reacting a substrate material modified with hydroxide radical and / or amino on the surface with bromoisobutyryl bromide so as to obtain a substrate material fixed with an initiator; (2) carrying out a polymerization reaction on the substrate material and acrylamide monomers in aninert atmosphere and water in the presence of a catalytic system so as to obtain a substrate material with a polymer brush on the surface; and (3) carrying out an amide degraded reaction on the substrate material with the polymer brush on the surface, soaking in an organic solution of iodomethane to perform quaternarization, washing, and drying, thereby obtaining the quaternized polymer brush antibacterial material. The method disclosed by the invention is simple and low in cost, and the quaternized polymer brush can be stably grafted onto the surface of the substrate material, so that the substrate material has excellent antibacterial property and is high in safety and convenient for industrialized production.

Description

technical field [0001] The invention belongs to the technical field of material modification, and in particular relates to a quaternized polymer brush antibacterial material based on the Si-ATRP method and a preparation method thereof. Background technique [0002] For a long time, harmful bacteria have been an important source of people's diseases, and their proliferation has endangered people's healthy life. With the continuous advancement of science and technology and the improvement of people's living standards, the application of antibacterial materials has gradually attracted people's attention. [0003] Antibacterial glass is a new type of ecological functional material, also known as green glass. It can maintain the characteristics of glass materials such as transparency, cleanliness, high mechanical strength, and good chemical stability, and also has excellent antibacterial properties. It can be widely used in daily utensils, food packaging, medical facilities and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C17/32A01N33/12C08F8/44C08F120/56C08F220/56C08F220/58A01P1/00
CPCA01N33/12C03C17/32C08F8/44C08F120/56C08F220/56C08F2438/01C08F220/58
Inventor 吴刚王舒浩
Owner SOUTH CHINA UNIV OF TECH
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