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A kind of antibacterial polyphenol material and application

A polyphenolic compound and reaction technology, used in antibacterial polyphenol materials and application fields, can solve the problems of inability to adhere well to antibacterial properties, poor coating stability, limited and other problems, and achieve excellent antibacterial properties and biocompatibility. , Simple operation, excellent antibacterial properties

Active Publication Date: 2021-06-01
BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, its coating stability is poor, it cannot adhere well to the substrate and its antibacterial performance is limited.

Method used

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  • A kind of antibacterial polyphenol material and application
  • A kind of antibacterial polyphenol material and application
  • A kind of antibacterial polyphenol material and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] 1) 1moL of 1,6-dibromohexane was reacted with 0.2moL of N,N-dimethyldecylamine at 65°C for 24 hours, isopropyl ether was precipitated, and dried in vacuo to obtain a terminal brominated quaternary ammonium salt A, the molecular formula is

[0037] 2) 0.1mol gallic acid, 2mol Na 2 CO 3 and 2mol of one end of brominated quaternary ammonium salt A, react at 50 °C for 12h, and then precipitate and dry to obtain modified polyphenol QTA-A1.

Embodiment 2

[0039] 1) 1moL 1,6-dibromohexane and 0.2moL N,N-dimethyloctylamine React at room temperature for 24 hours, precipitate with isopropyl ether, and dry in vacuo to obtain a quaternary ammonium bromide B, the molecular formula is

[0040] 2) 0.1mol tannic acid, 2mol Na 2 CO 3 With 2mol of one end of quaternary ammonium bromide B, react at 50°C for 12h, after precipitation and drying, the modified polyphenol QTA-A2 is obtained.

Embodiment 3

[0042] 1) as in Example 1 step 1), prepare one end brominated quaternary ammonium salt A, the molecular formula is

[0043] 2) 0.1mol tannic acid, 2mol Na2 CO 3 React with 1 mol of one-end brominated quaternary ammonium salt A and 1 mol of brominated decane at 50 °C for 12 h, and then precipitate and dry to obtain modified polyphenol AQTA-A1.

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PUM

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Abstract

The invention discloses an antibacterial polyphenol material, which is prepared by grafting polyphenolic compounds with monofunctional quaternary ammonium salts. I; Molecular formula B is wherein a=2~10, b=6~20, c=5~11, X is F, Cl, Br, I; Molecular formula C is wherein n=6~20, X is F, Cl, Br, I; Molecular formula D is wherein n=6~20, d=3~11, X is F, Cl, Br, I; The preparation method of the present invention is simple to operate, easy to carry out, and the antibacterial polyphenol that prepares has excellent The antibacterial properties and biocompatibility are expected to be applied in large-scale production.

Description

technical field [0001] The invention belongs to the field of antibacterial coagulation materials, and relates to an antibacterial polyphenol material and application. Background technique [0002] Polyphenols are the general term for phenols with multiple hydroxyl groups in the molecule. They are the most important secondary metabolites in plants. They mainly exist in the bark, roots, leaves and pulp of plants. Cellulose and lignin, their polyphenol structure has unique physicochemical properties, such as being able to combine with proteins, alkaloids, polysaccharides, etc., and complex with metal ions, with reducibility, free radical capture activity and many derivatization activities And so on, which is widely used in agriculture, ecological environment, food, medicine and other fields. Common polyphenolic compounds are tannins, anthocyanins, catechins, quercetin, gallic acid, ellagic acid, arbutin, epigallocatechin gallate, etc. Polyphenolic compounds can form a coating...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C217/20C07C217/34C07C213/06A61L15/20A61L15/44A61L15/46D06M13/463C08K5/19C08L75/04C08L3/02
CPCA61L15/20A61L15/44A61L15/46A61L2300/216A61L2300/404C07C209/12C07C213/06C07C217/20C07C217/34C07D301/00C07D303/36C08K5/19D06M13/463D06M16/00C08L75/04C07C211/63C08K3/02
Inventor 徐福建胡杨龙立
Owner BEIJING UNIV OF CHEM TECH