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A high molecular polymer material with antibacterial and trace element slow-release functions and its preparation method

A high-molecular polymer and trace element technology, which is applied in the field of high-molecular polymers containing metal ions and iodine at the same time, can solve the problems of poor taste, lack of trace elements, secondary pollution of microorganisms, etc. The effect of slow release of trace elements in rapid antibacterial disinfection

Inactive Publication Date: 2016-09-07
SHANGHAI NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the unique molecular structure design makes the polymer monomer structure contain both quaternary ammonium salt functional groups and hydantoin functional groups, making full use of their respective unique physical and chemical properties, it is possible to synthesize compounds capable of simultaneously immobilizing I 3 - A new generation of high molecular polymer materials with metal ions, this kind of I 3 - The high molecular polymer material with metal ions beneficial to the human body will be able to effectively solve the problems of microbial secondary pollution produced in the process of purifying drinking water by reverse osmosis membrane, lack of trace elements necessary for human body in water, and poor taste of water.

Method used

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  • A high molecular polymer material with antibacterial and trace element slow-release functions and its preparation method
  • A high molecular polymer material with antibacterial and trace element slow-release functions and its preparation method
  • A high molecular polymer material with antibacterial and trace element slow-release functions and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] This embodiment is the preparation of 1-dimethylaminomethyl-5,5-dimethylhydantoin, and its reaction formula is as follows:

[0030]

[0031] Weigh 5.84 g (0.037 mol) of 1-hydroxymethyl-5,5-dimethylhydantoin and place it in a 250 ml round-bottomed flask, add 30 ml of isopropanol to dissolve, and add dropwise a mass fraction of 33 5.05 g (0.037 mol) of dimethylamine solution, stirred and reacted at 40°C for 4 hours, and unreacted dimethylamine and solvent were distilled off under reduced pressure to obtain 7.37 g of a white solid product. Take 2.00 grams of white solid product, add an appropriate amount of anhydrous acetone until it is completely dissolved, and then pass through dry hydrogen chloride gas, there is a large amount of solid that is 1-dimethylaminomethyl-5,5-dimethylhydantoin The hydrochloride was precipitated, centrifuged, and dried to obtain 1.94 g. The dried 1-dimethylaminomethyl-5,5-dimethylhydantoin hydrochloride was dissolved in absolute ethanol, an...

Embodiment 2

[0033] This example is the preparation of p-vinylphenylmethylene-(5,5-dimethylhydantoin-1)methyl-dimethylammonium hydrochloride polymer macroporous cross-linked resin, which The reaction formula is as follows:

[0034]

[0035] Add 7.37 g of 1-dimethylaminomethyl-5,5-dimethylhydantoin obtained in Example 1 into a 250 ml round-bottomed flask and dissolve it with 30 ml of methanol, add macroporous cross-linked poly-p-chloro 2.82 g of methyl styrene resin was stirred and reacted at 60° C. for 16 hours. After the reaction, filter to obtain p-vinylphenylmethylene-(5,5-dimethylhydantoin-1)methyl-dimethylammonium hydrochloride polymer macroporous cross-linked resin, wash with water 6 times, and then dried at 45°C to constant weight to obtain 4.88 g of the product. Elemental analysis test values: C, 62.21; H, 7.483; N, 9.15. IR: 3425, 2348, 1787, 1733, 1614, 1513, 1476, 1433, 1379, 1293, 1222, 1105, 1013, 915, 857, 778, 747, 706, 631, 601cm -1 .

Embodiment 3

[0037] This embodiment is the immobilized Zn 2+ To p-vinylphenylmethylene-(5,5-dimethylhydantoin-1)methyl-dimethylammonium hydrochloride polymer macroporous cross-linked resin, the reaction process is as follows:

[0038] Weigh 5.00 g of p-vinylphenylmethylene-(5,5-dimethylhydantoin-1) methyl-dimethylammonium hydrochloride polymer macroporous cross-linking resin and place in 250 Add 100 ml of 0.10 mol / L sodium hydroxide solution into a beaker with 1000 ml, and slowly stir the reaction at room temperature for 1 hour, filter under reduced pressure to remove unreacted sodium hydroxide, wash it with deionized water for 5 times, and put it under 80 °C Dry to constant weight. Take 1.00 g of sodium hydroxide-treated resin, add it to 100 ml of 0.05 mol / L zinc chloride solution, stir slowly at room temperature for 1 hour, then filter under reduced pressure to remove unreacted zinc chloride, and use deionized Water was washed 5 times again, and dried to constant weight at 80°C to obta...

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Abstract

The invention discloses a high molecular polymer material having anti-bacterial and trace element slow release functions and a preparation method thereof. The method comprises the following steps: reacting a halomethylation-supporting high molecular polymer serving as a carrier with a hydantoin derivative containing a tertiary amine functional group to generate a high molecular polymer containing a quaternized hydantoin functional group; carrying out an exchange reaction on hydrogen on an imido group on a hydantoin loop and metal ions to immobilize the metal ions onto the high molecular polymer; immobilizing I3<-> through a quaternary ammonium salt functional group to obtain the high molecular polymer material having anti-bacterial and trace element slow release functions. The high molecular polymer material has rapid, efficient and broad-spectrum anti-bacterial and trace element slow release functions, and is suitable for disinfecting purified water and replenishing trace elements.

Description

technical field [0001] The invention belongs to the technical field of high-molecular polymer materials, and in particular relates to a high-molecular polymer material with antibacterial and trace element slow-release functions and a preparation method thereof, more specifically, a class of high-molecular polymer materials loaded with metal ions and iodine at the same time. molecular polymer. Background technique [0002] Water pollution and lack of clean drinking water due to population growth is the number one challenge facing many countries around the world. In China, with the rapid development of the economy and the acceleration of industrialization, the discharge of industrial wastewater, urban and rural domestic sewage, and the amount of pesticides and fertilizers have increased sharply. At the same time, the sewage treatment capacity of most areas is relatively lagging behind. The drinking water sources in China are polluted, and the organic matter, heavy metals and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F12/14C08F12/08C08F212/08C08F212/36C08F8/44C08F8/18A01N43/50A01P1/00
Inventor 梁杰揭志强
Owner SHANGHAI NORMAL UNIVERSITY
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