Material with antibacterial performance, preparation method and application thereof

A performance and uniform technology, applied in the field of material science, can solve the problems of single thermal stability function and high water oxygen transmission rate of polyimide, so as to improve the glass transition temperature, improve the stability of heat resistance and oxidation resistance, Effect of improving barrier performance

Inactive Publication Date: 2020-06-09
HUNAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a polyimide with high temperature resistance, high barrier performance and excellent antibacterial performance for the existing polyimide in terms of high water oxygen transmission rate, thermal stability and single function. Amine material

Method used

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  • Material with antibacterial performance, preparation method and application thereof
  • Material with antibacterial performance, preparation method and application thereof
  • Material with antibacterial performance, preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] This example provides the synthesis of 2,7-bis((4-aminophenyl)amino)acridin-9(10H)-one:

[0041]

[0042] S1. Synthesis of intermediate 2,7-diaminoacridin-9(10H)-one:

[0043] Add 3.53g (0.01mol) of 2,7-dibromoacridin-9(10H)-one, an appropriate amount of cuprous oxide, 50ml of NMP, and 13ml of ammonia water (29%, 0.2mol) into a 200ml pressure-resistant bottle, protected by argon, at 100°C Reaction, after the reaction is completed, the reaction solution is poured into ice water, extracted with dichloromethane, the solvent is removed under reduced pressure, and the product is made of dichloromethane: n-hexane=2:1 (volume ratio) as the mobile phase silica gel as the stationary phase. After purification by column chromatography, the product was collected and spin-dried, and dried in vacuum at 80°C for 24 hours to obtain an intermediate. The intermediate structure is as follows:

[0044]

[0045] S2. Synthesis of intermediate 2,7-bis((4-nitrophenyl)amino)acridin-9(10...

Embodiment 2

[0051] This example provides

[0052] Synthesis of 2-((5-aminopyridin-2-yl)amino)-6-((6-aminopyridin-3-yl)amino)acridin-9(10H)-one:

[0053]

[0054] S1. Synthesis of intermediate 2,6-diaminoacridin-9(10H)-one:

[0055] Add 3.53g (0.01mol) of 2,6-dibromoacridin-9(10H)-one, an appropriate amount of cuprous oxide, 50ml of NMP, and 13ml of ammonia water (29%, 0.2mol) into a 200ml pressure bottle, under argon protection, at 100°C Reaction, after the reaction is completed, the reaction solution is poured into ice water, extracted with dichloromethane, the solvent is removed under reduced pressure, and the product is made of dichloromethane: n-hexane=2:1 (volume ratio) as the mobile phase silica gel as the stationary phase. After purification by column chromatography, the product was collected and spin-dried, and dried in vacuum at 80°C for 24 hours to obtain an intermediate. The intermediate structure is as follows:

[0056]

[0057] S2. Synthetic intermediates

[0058] 2...

Embodiment 3

[0065] This example provides the synthesis of 3,6-bis((3-aminophenyl)amino)acridin-9(10H)-one:

[0066]

[0067] S1. Synthesis of intermediate 2,6-diaminoacridin-9(10H)-one:

[0068] Add 3.53g (0.01mol) of 2,6-dibromoacridin-9(10H)-one, an appropriate amount of cuprous oxide, 50ml of NMP, and 13ml of ammonia water (29%, 0.2mol) into a 200ml pressure bottle, under argon protection, at 100°C Reaction, after the reaction is completed, the reaction solution is poured into ice water, extracted with dichloromethane, the solvent is removed under reduced pressure, and the product is made of dichloromethane: n-hexane=2:1 (volume ratio) as the mobile phase silica gel as the stationary phase. After purification by column chromatography, the product was collected and spin-dried, and dried in vacuum at 80°C for 24 hours to obtain an intermediate. The intermediate structure is as follows:

[0069]

[0070] S2. Synthesis of intermediate 3,6-bis((3-nitrophenyl)amino)acridin-9(10H)-one...

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PUM

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Abstract

The invention discloses a material with antibacterial performance, a preparation method and application thereof, wherein the material is polyimide and is formed by polymerizing a diamine monomer containing an acridone structure and a dianhydride monomer. According to the invention, acridone with a planar rigid structure and a polar group are creatively introduced into a polyimide main chain, wherein the planar rigid acridone structure is beneficial to regular stacking of molecular chains and induction of polymer crystallization, and the polar group can enhance the hydrogen-bond interaction ofthe molecular chains and promote the tight stacking of the molecular chains, so that polyimide has excellent barrier property, high glass-transition temperature and thermal stability and low thermal expansion coefficient; and the polyimide contains an acridone structure and a polar group, so that the polyimide is endowed with a certain antibacterial property.

Description

technical field [0001] The present invention relates to the field of material science and technology, and more specifically, relates to a material with antibacterial properties and its preparation method and application. Background technique [0002] In the field of packaging, packaging materials need to have certain mechanical properties to adapt to pressure and impact, and effectively protect products; secondly, the stability can effectively maintain good stability in harsh environments such as high or low temperatures, such as flame retardant, insect-proof, Inhibition of microorganisms, etc.; and then good safety performance, the toxicity of the packaging material itself should be small, and it cannot cause harm to polluted products and human health; the last important thing is to have excellent barrier properties, which can resist water vapor, oxygen, etc. The material is blocked to ensure the product quality of the packaged objects. [0003] Polyimide is one of the org...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G79/10C08L79/08C08J5/18C07D219/08C07D401/12A01N43/42A01P1/00
CPCA01N43/42C07D219/08C07D401/12C08G73/1007C08G73/1085C08J5/18C08J2379/08
Inventor 谭井华刘亦武张祥
Owner HUNAN UNIV OF TECH
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