Preparing process of antiseptic graft polymer in micron and nanometer composite structure

A composite structure and polymer technology, applied in the field of polymer materials, can solve the problems of lack of research and selection of material surface morphology, and achieve the effect of outstanding antibacterial performance, large specific surface area, and large contact area

Inactive Publication Date: 2007-06-27
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In the above-mentioned patented technology, the grafted polymer antibacterial materials are simply grafted into a solution of antibacterial monomers on the surface of the polymer, and the surface morphology of the material has not been studied and selected.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] (1) Use 100ml of benzene as a solvent and prepare a liquid with 0.1mol of N,N-dimethylethanolamine, add triethylamine and methacryloyl chloride, and the molar ratio of acid chloride to hydroxyl and triethylamine is 2:1: 1. The reaction temperature is 0°C, and the reaction time is 16 hours. The product obtained was 2-(N,N-dimethylamino)ethyl methacrylate.

[0025] (2) Add 100ml of dichloromethane into 0.1mol of 2-(N,N-dimethylamino)ethyl methacrylate as a solvent, then add 0.1mol of benzyl chloride to carry out reflux reaction, and react for 6 hours; The product obtained is methacryloxyethyl-benzyl-dimethylammonium chloride.

[0026] (3) adding deionized water in the reaction product methacryloyloxyethyl-benzyl-dimethyl ammonium chloride is a solvent, so that the molar concentration of the solution is 0.8mol / L, and in another part of the reaction product methacrylic Add chloroform to acyloxyethyl-benzyl-dimethylammonium chloride to make the molar concentration of the s...

Embodiment 2

[0029] (1) Take 100ml of benzene as a solvent, prepare a solution with 0.05mol of N-methyldiethanolamine, add triethylamine and methacryloyl chloride, the molar ratio of acid chloride to hydroxyl and triethylamine is 8:1:1, The reaction temperature was 0°C, and the reaction time was 16 hours. The product obtained was 2-(N-ethylamino)diethyl methacrylate.

[0030] (2) Add 100ml of dichloromethane as a solvent in 0.05mol of 2-(N-ethylamino)diethyl methacrylate, then add 0.05mol of benzyl chloride to carry out reflux reaction, and the reaction time is 8 hours; The product obtained is dimethylacryloyloxyethyl-benzyl-methylammonium chloride.

[0031] (3) Adding deionized water as a solvent in the reaction product dimethylacryloyloxyethyl-benzyl-methyl ammonium chloride, so that the molar concentration of the solution is 0.6mol / L, and in another part of the reaction product dimethyl Add chloroform to acryloyloxyethyl-benzyl-methylammonium chloride to make the molar concentration o...

Embodiment 3

[0034] (1) Use 100ml tetrahydrofuran as a solvent and prepare a liquid with 0.05mol of N-methyldiethanolamine, add triethylamine and acryloyl chloride, the molar ratio of acid chloride to hydroxyl and triethylamine is 4:1:1, and the reaction temperature 0°C, the reaction time is 16 hours. The product obtained was 2-(N-methylamino)diethyl acrylate.

[0035] (2) In 0.05mol of 2-(N-methylamino) diethyl acrylate, add 100ml of dichloromethane as a solvent, then add 0.05mol of benzyl chloride for reflux reaction, and the reaction time is 6 hours; the product is obtained It is diacryloyloxyethyl-benzyl-methylammonium chloride.

[0036] (3) Adding deionized water as a solvent in the reaction product diacryloyloxyethyl-benzyl-methylammonium chloride, so that the molar concentration of the solution is 0.8mol / L, in another part of the reaction product diacryloyloxyethyl Dichloromethane is added to base-benzyl-methylammonium chloride to make the molar concentration of the solution 0.05m...

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PUM

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Abstract

The present invention is process of antiseptic graft polymer in micron and nanometer composite structure, and belongs to the field of polymer technology. The process includes adding solvent, triethylamine and acyl chloride with unsaturated C=C double bond into solution of tertiary amine with hydroxy radical to obtain product A; adding solvent and benzyl halide for reflux reaction to obtain product B; dissolving the product B separately in water and oily solvent; compounding water-in-oil microemulsion with the water solution, the oily solution and non-ionic surfactant and adding photoinitiator; irradiating with ultraviolet ray for reaction; extracting the grafted polymer with mixed solvent of water and acetone and drying. The antiseptic graft polymer in micron and nanometer composite structure has great specific surface area and specific antiseptic function and is used as antibiotic material for clothing, appliance, sanitary ceramic product, etc.

Description

technical field [0001] The invention relates to a preparation method of a grafted antibacterial polymer with a micro-nano composite structure on the surface, belonging to the technical field of polymer materials. Background technique [0002] Antibacterial polymer materials can be obtained by three methods: blending antibacterial agents with polymers, coating antibacterial agents on the surface of polymers, or grafting and modifying polymer surfaces. Obviously, the latter is more economical and reliable. Its main advantages are: high utilization efficiency of fungicides. The fungicide is covalently bonded to the substrate, and its performance is stable. [0003] The polymer grafted with quaternary ammonium salt on the surface is a solid-phase surface-contact antibacterial material with good antibacterial effect and low price. It adsorbs bacteria through electrostatic attraction and hydrophobic interaction, and can kill bacteria after direct contact with bacteria. Current...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J7/18C08L23/00C08L33/20C08L67/02
Inventor 邢晓东王晓工
Owner TSINGHUA UNIV
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