Unlock instant, AI-driven research and patent intelligence for your innovation.

Antibacterial high-molecular polymer, and preparation method and application thereof

A high molecular polymer and polymer technology, applied in the polymer field, can solve the problems of high cost, high dosage, poor optical stability, etc., and achieve the effect of meeting industrial usage, simple preparation process, and good coating performance

Active Publication Date: 2014-01-01
CHINA PETROLEUM & CHEM CORP +2
View PDF3 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Anions, zinc dioxide and titanium dioxide are commonly used antibacterial agents compounded with polymers, but these antibacterial agents are mostly used in environments with low microbial content, and have disadvantages such as poor optical stability, large dosage, and high cost. Industrial water treatment systems The content of corrosive microorganisms in the medium is more than 10 8 More than one / mL, and economical issues should be considered

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Antibacterial high-molecular polymer, and preparation method and application thereof
  • Antibacterial high-molecular polymer, and preparation method and application thereof
  • Antibacterial high-molecular polymer, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Embodiment 1: the preparation of polychloromethylstyrene resin

[0031] Add 3.5g of polyvinyl alcohol and 0.2g of commercial washing powder into 130ml of water, heat to dissolve, and prepare a solution, cool to 40°C, put the solution in a 250ml three-necked flask, and add 23ml of chloromethylstyrene under mechanical stirring Mixed solution with 0.4g AIBN (azobisisobutyronitrile), slowly heat up to 60℃~70℃, maintain the temperature for polymerization reaction for 24h, let stand, filter, wash with hot water until there is no white turbid solution, then wash with methanol , put it in a vacuum oven and dry it to obtain polychloromethyl styrene.

[0032]

Embodiment 2

[0033] Embodiment 2: Preparation of quaternization of polychloromethylstyrene resin and nitroimidazoline

[0034] Take 6g of polychloromethylstyrene and add 100ml of DMF to swell for 4h~5h, then add the mixed solution into a 500ml four-necked flask, pass nitrogen gas as a protective gas, raise the temperature to 140°C~150°C under mechanical stirring, add AIBN (even Azodiisobutyronitrile) 0.35g, then slowly add 15.5g of 2-nitroimidazole porphyrin metronidazole and 50ml of DMF (N,N-dimethylformamide) mixture dropwise, after the completion of the dropwise addition, reflux for 8h . After cooling, the crude product was obtained. The crude product was filtered under reduced pressure, and after the solvent was filtered off, the obtained product was washed several times with DMF, and dried in a vacuum oven to obtain a polychloromethylstyrene quaternary phosphonium salt.

[0035] Number average molecular weight: 50,000 g / mol, repeating unit ratio in the molecule: polychloromethylstyr...

Embodiment 3

[0036] Embodiment 3: Preparation of quaternization of polychloromethylstyrene resin and nitroimidazoline

[0037] Take 10g of polychloromethylstyrene and add 100ml of DMF to swell for 4h~5h, then add the mixed solution into a 500ml four-neck flask, pass nitrogen gas as a protective gas, raise the temperature to 140°C~150°C under mechanical stirring, add AIBN (even N-diisobutyronitrile) 0.35g, then slowly add 29.1g of p-2-methylnitroimidazoline and 50ml of DMF (N,N-dimethylformamide) mixture dropwise, after the completion of the dropwise addition, reflux for 8h . After cooling, the crude product was obtained. The crude product was filtered under reduced pressure, and after the solvent was filtered off, the obtained product was washed several times with DMF, and dried in a vacuum oven to obtain a polychloromethylstyrene quaternary phosphonium salt.

[0038] Number average molecular weight: 65,000 g / mol, repeating unit ratio in the molecule: polychloromethylstyrene: 2-nitroimid...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
molecular weight distributionaaaaaaaaaa
Login to View More

Abstract

The invention belongs to the high-molecular technical field, and especially relates to an antibacterial high-molecular polymer, and a preparation method and an application thereof to paints with antibacterial property. The technical scheme comprises that: the antibacterial high-molecular polymer has an average molecular weight f 1800-1800000 g / mol and a molecular weight distribution coefficient of 1.5-2.0, and has a structural general formula show in the description, wherein n is equal to 10-1000. The antibacterial high-molecular polymer is simple in preparation, cheap in raw materials, efficient, none in pollution, long-acting, strong in antibacterial property, good in coating performance, and easy to process and operate; and the antibacterial high-molecular polymer not only has good antibacterial property, but also is capable of satisfying requirements on large economical industrial use amount.

Description

technical field [0001] The invention belongs to the technical field of macromolecules, and in particular relates to an antibacterial macromolecular polymer, a preparation method thereof, and an application in coatings with antibacterial properties. Background technique [0002] Microbial fouling and material corrosion widely exist in the field of industrial circulating water. In the water medium of surface sewage storage tanks and pipelines in oil and gas fields, power plant circulating water systems, and municipal sewage discharge systems, there are various degrees of microbial growth and pipeline corrosion problems. Corrosive microorganisms mainly include sulfate reducing agent (SRB), iron bacteria (FB) and saprophytic bacteria (TGB). This kind of organisms reproduces in the anaerobic environment of industrial circulating water, produces mucus substances, and even adsorbs on the surface of pipe walls or tank walls to form biofilms. When microbial biofilms exist on the inn...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C08F112/14C08F8/44C08F4/04C09D5/14C09D125/18
Inventor 刘晶姝王观军谭晓林孙振华刘璐
Owner CHINA PETROLEUM & CHEM CORP