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Macromolecule polymer and method for preparing the polymer and nano fibre thereof

A high molecular polymer and nanofiber technology, applied in fiber processing, textiles and papermaking, filament/thread forming, etc., can solve the problems of functional polymer antibacterial performance failure, human body or environmental hazards, etc., and achieve universal antibacterial pollution Antibacterial properties, good antibacterial performance, long-term antibacterial and universal effect

Active Publication Date: 2008-06-04
HAIAN LIANFA ZHANGSHI YARN DYED +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The antibacterial functional polymer and its nanofibers involved in the present invention can overcome the easy loss of small molecules in the existing quaternary ammonium salt cationic polymers, which will lead to the failure of the antibacterial performance of the functional polymer and cause harm to the human body or the environment Improve the long-term effect and reusability of functional polymer antibacterial properties, and prevent pollution caused by the loss of small molecules; at the same time, the functional polymer nanofiber has a cross-linked structure, so it has good solvent resistance

Method used

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  • Macromolecule polymer and method for preparing the polymer and nano fibre thereof
  • Macromolecule polymer and method for preparing the polymer and nano fibre thereof
  • Macromolecule polymer and method for preparing the polymer and nano fibre thereof

Examples

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example 1

[0041] Example 1: 4.33 grams (0.015mol) of dried sodium pentachlorophenate was placed in a 100ml round-bottomed flask, and 40 ml of ethyl acetate was added dropwise under magnetic stirring to completely dissolve sodium pentachlorophenate. At 0° C., a mixture of 20 ml of ethyl acetate and 1.3 ml of acryloyl chloride was added dropwise with a constant pressure dropping funnel (dropping completed within 0.5 h). After the addition was completed, the reaction was continued for 2h (0°C). After the reaction, the white insoluble matter was filtered off. The filtrate was washed several times with saturated brine until the aqueous layer was neutral. Pour the supernatant into a 100ml Erlenmeyer flask, add anhydrous Na 2 SO 4 Dry well. After 0.5h, it was filtered, and the supernatant was placed in a pear-shaped flask, and rotatively evaporated (45°C) for 0.5h. The product in the bottle was taken out and placed in a vacuum drying oven for 24 hours to be vacuum-dried for future use. Y...

example 2

[0042] Example two: Pentachlorophenyl acrylate (0.96 grams, 3mmol), 2-dimethylaminoethyl methacrylate (0.5ml, 3mmol), glycidyl methacrylate (0.2ml, 1.5mmol), AIBN (0.05g, 0.03mmol) was placed in a test tube, 3ml of THF was added, and dissolved with magnetic stirring at room temperature. Nitrogen gas (under the liquid surface) for 15 minutes, continue nitrogen gas (liquid surface) for 10 minutes, seal, and react in an oil bath (temperature 70°C for 6 hours). After the reaction finishes, cool the column (Al 2 o 3 ), and precipitated with petroleum ether to obtain a white viscous substance. Air dry followed by vacuum drying. Number average molecular weight: 50,000 g / mole Molecular weight distribution coefficient: 1.6, repeating unit ratio in the molecule: pentachlorophenyl acrylate: 2-dimethylaminoethyl methacrylate: glycidyl methacrylate = 0.9: 1: 0.1.

example 3

[0043] Example 3: Weighing CuBr 2 (0.09mmol) and AIBN (0.09mmol) were placed in a test tube, 2ml of THF was added, and dissolved with magnetic stirring at room temperature. After nitrogen gas (subsurface) for 10 min, 2-dimethylaminoethyl methacrylate (1.5 ml, 9 mmol) and glycidyl methacrylate (0.2 ml, 1.5 mmmol) were added. Continue to pass nitrogen for 5min, then add complexing agent PMDETA (25ul). Seal and react in an oil bath (T: 70°C for 6h). After the reaction finishes, add 2mlTHF in reaction system while hot, cross column after cooling (Al 2 o 3 ). Precipitate with petroleum ether to obtain a white viscous substance. After drying in air, it was dried in a vacuum oven (24h).

[0044] Put the weighed solid pentachlorophenyl acrylate (0.6 g, 0.19 mol) and CuBr (0.03 mmol) into a test tube, add 2 ml THF, and stir to dissolve. The prepared poly-2-dimethylaminoethyl methacrylate was dissolved in 2ml THF and added to the test tube, and nitrogen gas (under the liquid surf...

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Abstract

The invention discloses high polymer and a preparation method of high polymer and nano-fiber thereof. The polymer is copolymer which is polymerized by at least a vinyl halogenated phenols monomer A, at least a vinyl tertiary amine monomer B and at least a monomer C with cross-linkable group. Monomer A, monomer B and monomer C make polymerization in the presence of initiating system. The reaction temperature is 40-120 DEG C and reaction time is 4-24 hours; the objective copolymer is obtained by precipitation, filtration and drying after the reaction. The solvent-resistance nano-fiber can be prepared after electrostatic spinning and crosslinking treatment of the polymer. Since the molecular structure of the polymer and nano-fiber contains halogen phenol group and tertiary amine group which can be mutually bonded to form quaternary ammonium salt, the polymer and nano-fiber of the invention has excellent antibacterial performance; meanwhile the nano-fiber is crosslinking structure, so the nano-fiber has excellent solvent stability.

Description

technical field [0001] The invention relates to a functional polymer material and a preparation method thereof, in particular to a polymer with antibacterial properties and a preparation method of nanofibers prepared from the polymer. Background technique [0002] With the rapid development of the economy and the continuous improvement of people's living standards, people's requirements for hygiene and health are getting higher and higher. Therefore, more and more people's attention has been paid to antibacterial functional polymer materials. Antibacterial functional polymers have a wide range of applications in the fields of food packaging, medical equipment, public equipment, sewage treatment, clothing, coatings, household appliances, and biological materials. There are two types of common antibacterial polymer materials, one is the composite of inorganic antibacterial agent and polymer carrier, and the other is the introduction of antibacterial functional groups on the p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/34C08F2/06C08F2/38D01D5/00C08F220/22
Inventor 付国东姚芳李新松浦跃朴尹丽红
Owner HAIAN LIANFA ZHANGSHI YARN DYED
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