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A kind of cross-linked polymer antibacterial nano-emulsion particles and preparation method thereof

A technology of cross-linked polymers and latex particles, which is applied in botany equipment and methods, chemicals for biological control, animal repellents, etc., can solve the problems that affect the widespread use of antibacterial materials, endanger human health, Short-term effect and other problems, to achieve the effect of increasing production cost and difficulty, lasting and stable antibacterial effect, and excellent antibacterial performance

Active Publication Date: 2019-09-10
SUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Initially, people mainly studied small-molecule antibacterial agents. The synthesis process of small-molecule antibacterial agents is simple and there are many types, but there are many shortcomings, such as high toxicity to the environment, short-term antibacterial effect, easy migration and loss of antibacterial properties, and endangering the human body. Health, etc., have greatly affected the widespread use of antibacterial materials

Method used

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  • A kind of cross-linked polymer antibacterial nano-emulsion particles and preparation method thereof
  • A kind of cross-linked polymer antibacterial nano-emulsion particles and preparation method thereof
  • A kind of cross-linked polymer antibacterial nano-emulsion particles and preparation method thereof

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Embodiment 1

[0025] Synthesis of Quaternary Ammonium Salt Monomer MAQAC 6

[0026] Quaternary ammonium salt monomer dimethylhexyl (2-methacryloyloxyethyl) ammonium bromide ((2-methacryloyloxyethyl) dimethyl hexyl ammonium chloride) (MAQAC 6 ) was synthesized as follows: 5 mL of dimethylaminoethyl methacrylate (DMAEMA), 4.6 mL of bromohexane (C 6 h 13 Br) and 10 mL of acetonitrile were added to a 50 mL single-necked flask equipped with a condenser and a magnetic stirrer, and placed in an oil bath with a pre-set temperature (50 °C) to react for 15 h. After the reaction, the reaction solution was added dropwise to a large amount of diethyl ether, left to stand overnight in the refrigerator, filtered with suction to obtain a white crystalline solid, which was dried in a vacuum oven at 25 °C, and finally a white solid powder MAQAC was obtained. 6 .

[0027] Cationic methacrylate quaternary ammonium monomer MAQAC 6 It is prepared by the quaternization reaction of the tertiary amine on the m...

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Abstract

The invention discloses cross-linked polymer antibacterial nano latex particles and a preparation method thereof. The preparation method comprises the following steps: establishing a free-radical copolymer system anticipated by hydrophobic monomer styrene, cationic methacrylate-quaternary ammonium salt monomer MAQAC6 and divinyl benzene by adopting an one-pot method, and successfully preparing soap-free cross-linked polymer nano emulsion with antibacterial property by virtue of a simple and efficient method, wherein the particle size is small and narrow in distribution, and the problems that the particle size of the latex particles is increased due to the excessive consumption of quaternary ammonium salt monomer and the stability of the emulsion is reduced can be avoided. The cross-linked polymer antibacterial emulsion does not need to be after-treated and can be directly used for resisting bacteria, the soap-free emulsion prepared by adding the quaternary ammonium salt monomer is proved to have good antibacterial property for the escherichia coli, the research achievement has positive significance for preparing soap-free nano antibacterial emulsion which can be directly used, and the application potential in the aspect of the antibacterial paint and the like is considerable.

Description

technical field [0001] The invention belongs to the technical field of antibacterial material preparation, and in particular relates to a cross-linked polymer antibacterial nano latex particle and a preparation method thereof. Background technique [0002] Bacterial infection is harmful to human health in many fields, especially equipment and products in medical and sanitary places, food processing, packaging and storage, drinking water purification systems, items in beauty places, household facilities, etc., are extremely vulnerable to bacterial infection. Invasion may pose a serious threat to people's life and health. Therefore, the development of antibacterial materials has broad prospects and important value no matter from the academic level or from the perspective of industrial production, and people have not stopped their research. Initially, people mainly studied small-molecule antibacterial agents. The synthesis process of small-molecule antibacterial agents is simp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F8/44C08F212/08C08F212/36C08F220/34A01N33/12A01P1/00
Inventor 程振平武娟娟张丽芬于谦朱秀林
Owner SUZHOU UNIV
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