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Poly-o-aminophenol antibacterial material and preparation method thereof

A technology of poly-ortho-aminophenol and antibacterial materials, which is applied in the field of antibacterial materials, can solve the problems of complex process, single preparation method, and low yield, and achieve the effects of good thermal stability, simple preparation process, and excellent antibacterial performance

Inactive Publication Date: 2013-08-14
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention provides a preparation method of poly-o-aminophenol antibacterial materials in order to solve the existing problems of single electrochemical preparation method of poly-o-aminophenols, complex process and extremely low output. The method is simple in process, easy to operate, A chemical oxidation synthesis method for poly-o-aminophenol that can be mass-produced. The method uses o-aminophenol as a raw material. In an acidic solution, an initiator triggers chemical oxidation to synthesize poly-o-aminophenol antibacterial materials. The specific preparation method includes the following steps:

Method used

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  • Poly-o-aminophenol antibacterial material and preparation method thereof
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Examples

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Effect test

Embodiment 1

[0022] First prepare 1000ml of nitric acid solution with a molar concentration of 1.0mol / L, divide it into two equal parts, add 10.9g of o-aminophenol to one part, stir well to form A liquid; add 5.7g of ammonium persulfate to the other acidic solution , stir evenly to form liquid B, quickly pour liquid B into liquid A at room temperature, and then let it stand for reaction at room temperature for 20 hours; then use reduced-pressure filtration to separate the system formed by the reaction, and remove Wash with ionic water until the filtrate is neutral and colorless; vacuum-dry the obtained solid at 60-80°C for 12 hours to obtain a powdered poly-o-aminophenol polymer antibacterial material; poly-o-aminophenol is in the form of spherical particles Structure, the diameter is 20~50μm, known from the antibacterial results (inhibition zone method, the diameter of the attached sample paper is 6mm, the concentration is 1mg / ml): the diameter of the antibacterial zone of the obtained pol...

Embodiment 2

[0024] First prepare 200ml of sulfuric acid solution with a molar concentration of 1.0mol / L, divide it into two equal parts, add 5.45g o-aminophenol to one part, stir well to form A liquid; add 5.7g ammonium persulfate to the other acidic solution , stir evenly to form liquid B, quickly pour liquid B into liquid A at room temperature, and then stand for reaction at 0°C for 8 hours; then use reduced-pressure filtration to separate the system formed by the reaction, and use 1mol / L sulfuric acid solution, Wash with deionized water separately until the filtrate is neutral and colorless; vacuum-dry the obtained solid at 60-80°C for 12 hours to obtain a powdered poly-o-aminophenol polymer antibacterial material, in which poly-o-aminophenol is in the form of chrysanthemum Petal-shaped particle structure, with a diameter of about 20 μm, and its appearance is as follows figure 1 As shown in (A), it is known from the antibacterial results (inhibition zone method, the diameter of the att...

Embodiment 3

[0026] First prepare 400ml of hydrochloric acid solution with a molar concentration of 1.0mol / L, divide it into two equal parts, add 21.8g o-aminophenol to one part, stir well to form A liquid; add 4.56g ammonium persulfate to the other acidic solution , stir evenly to form liquid B, quickly pour liquid B into liquid A at room temperature, and then let stand for reaction at room temperature for 30 hours; then use vacuum filtration to separate the formed system, and use 1mol / L hydrochloric acid solution to remove Wash with deionized water until the filtrate is neutral and colorless; vacuum-dry the obtained solid at 60-80°C for 12 hours to obtain a powdered poly-o-aminophenol polymer antibacterial agent; wherein poly-o-aminophenol is smooth and micro Spherical particle structure, with a diameter of about 20 μm, and its shape is as follows figure 1 As shown in (B); from the antibacterial results (inhibition zone method, the diameter of the attached sample paper is 6mm, the concen...

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Abstract

The invention discloses a preparation method of a poly-o-aminophenol antibacterial material. According to the preparation method, with o-aminophenol as a raw material, the poly-o-aminophenol high polymer antibacterial material is synthesized by carrying out chemical oxidation on the raw material in an acid solution; and the poly-o-aminophenol antibacterial material has the microparticle diameter of 1-50mu m and has chrysanthemum-like and spherical microstructure; and the poly-o-aminophenol antibacterial material prepared by using the preparation method has excellent bactericidal effects on escherichia coli, staphylococcus aureus, bacillus subtilis, bacillus megatherium and bacillus cereus, good environmental suitability, excellent organic solubility, heat stability and favorable conductivity, is controllable in size and morphology, low in cost, simple in preparation process and easy to industrialize and can be widely applied to the fields, such as medicines, agriculture and sanitation.

Description

technical field [0001] The invention relates to the technical field of antibacterial materials, in particular to a poly-o-hydroxyphenol antibacterial material and a preparation method thereof. Background technique [0002] In daily life, pathogenic bacteria seriously threaten human health. With the improvement of people's living standards and health awareness, the development and application of antibacterial materials and their products has become one of the topics of worldwide concern. Traditional antibacterial materials mainly include inorganic antibacterial materials and organic antibacterial materials. Among them, inorganic materials have received extensive attention because of their high safety, good heat resistance and antibacterial durability, and are not easy to produce drug resistance. However, inorganic materials are easy to agglomerate, and Most of them are photocatalytic antibacterial materials, which limit their application only under the conditions of natural ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G73/02A01P1/00
Inventor 贾庆明胡庭维陕绍云王亚明蒋丽红
Owner KUNMING UNIV OF SCI & TECH
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