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Preparation of polymer antibacterial nano-particles and magnetic antibacterial nano-particles containing halamine functional groups

A technology of antibacterial nanoparticles and halamine functionalization, which is applied in the field of preparation of polymer antibacterial nanoparticles and magnetic antibacterial nanoparticles, can solve the problems of complicated operation, cumbersome preparation methods, effective antibacterial ingredients (low content of halamine functional groups, etc.), and achieve The effect of broad-spectrum sterilization

Inactive Publication Date: 2013-04-17
SHANGHAI NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This literature method combines the halamine functional groups on the surface of magnetic nanomaterials well, but its preparation method is cumbersome, the operation is complicated, and the content of effective antibacterial ingredients (halamine functional groups) is low

Method used

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  • Preparation of polymer antibacterial nano-particles and magnetic antibacterial nano-particles containing halamine functional groups
  • Preparation of polymer antibacterial nano-particles and magnetic antibacterial nano-particles containing halamine functional groups
  • Preparation of polymer antibacterial nano-particles and magnetic antibacterial nano-particles containing halamine functional groups

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] This example is the preparation of acrylic acid and styrene mixed polymer nanoparticles (n acrylic acid: n styrene = 1:0.7).

[0036] Take 58mL of secondary deionized water in a 100mL three-necked flask, then add 0.02mol (1.44g) of acrylic acid (AA), after the AA is dissolved, add 0.014mol (1.44g) of styrene (St), and stir for 10 minutes. Then add initiator potassium persulfate (K 2 S 2 o 8 )0.0001mol (0.027g), stirred and reacted at 80°C for 12 hours. Acrylic and styrene mixed polymer nanoparticles were obtained by centrifugation, washed with ethanol and water, and dried for later use.

Embodiment 2

[0038] This example is the preparation of acrylic acid and styrene mixed polymer nanoparticles (n acrylic acid: n styrene = 1:1.4).

[0039] Take 40mL of secondary deionized water in a 100mL three-necked flask, then add 0.01mol (0.72g) of acrylic acid (AA), after the AA is dissolved, add 0.014mol (1.44g) of styrene (St), and stir for 10 minutes. Then add initiator potassium persulfate (K 2 S 2 o 8 )0.0001mol (0.027g), stirred and reacted at 80°C for 12 hours. Acrylic and styrene mixed polymer nanoparticles were obtained by centrifugation, washed with ethanol and water, and dried for later use. 红外谱图分析数据:IR:3853.61、3820.93、3060.12、3026.14、2923.71、2361.17、1949.02、1869.32、1704.41、1601.10、1493.41、1452.59、1238.08、1069.77、1027.96、907.16、841.92、758.72、698.28、540.11cm-1 .

Embodiment 3

[0041] This example is the preparation of acrylic acid and styrene mixed polymer nanoparticles (n acrylic acid: n styrene = 1:2.1).

[0042] Take 29mL of secondary deionized water in a 100mL three-necked flask, then add 0.005mol (0.36g) of acrylic acid (AA), after the AA is dissolved, add 0.0105mol (1.08g) of styrene (St), and stir for 10 minutes. Then add initiator potassium persulfate (K 2 S 2 o 8 )0.0001mol (0.027g), stirred and reacted at 80°C for 12 hours. Acrylic and styrene mixed polymer nanoparticles were obtained by centrifugation, washed with ethanol and water, and dried for later use.

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Abstract

The invention relates to polymer antibacterial nano-particles and magnetic antibacterial nano-particles containing halamine functional groups. The preparation comprises the following steps: taking acrylic acid (AA) and styrene (St) as raw materials, performing polymerization reaction in water to generate acrylic acid and styrene mixed polymer nano-particles, performing inclusion reaction in the water on the magnetic nano-particles to generate an acrylic acid and styrene mixed polymer so as to get acrylic acid and styrene mixed polymer magnetic nano-particles, then reacting with amine to generate the polymer antibacterial nano-particles and magnetic antibacterial nano-particles containing the halamine precursor functional groups and finally performing halogenating reaction to generate the polymer antibacterial nano-particles and magnetic antibacterial nano-particles containing the halamine functional groups. The antibacterial nano-particles have the advantages of high speed, high efficiency and broad-spectrum antibacterial effects, the antibacterial halamine functional groups can be regenerated through the simple halogenating reaction after being exhausted, and the antibacterial nano-particles can be widely applied to sterilization treatment of various water bodies and air, control of harmful smelly gas, inhibition of tumor cells and the like.

Description

technical field [0001] The invention relates to the preparation and application of novel highly efficient and reproducible organic polymer antibacterial nanoparticles and magnetic antibacterial nanoparticles, in particular to the preparation method and application of polymer antibacterial nanoparticles and magnetic antibacterial nanoparticles containing halide functional groups. Background technique [0002] Nano antibacterial material is a new type of material with antibacterial properties. Due to the special effect of high specific surface area and high reactivity of the antibacterial agent in the material, its overall antibacterial effect is greatly improved. It is used in packaging materials, functional coatings, and medical biological materials. Materials, clothing fabrics, functional fibers, water treatment, and daily antibacterial products will be widely used. U.S. Patent US6379712 discloses a method for manufacturing antibacterial granules containing nano-silver part...

Claims

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Application Information

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IPC IPC(8): C08F220/06C08F212/08C08F8/32C08F8/22A01P1/00C08L33/02C08L25/08H01F1/11
Inventor 梁杰闫秀芳赵莲红揭志强
Owner SHANGHAI NORMAL UNIVERSITY
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