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2,4,6-trichlorophenol molecular imprinting microsphere polymer

A technology for imprinting polymers and trichlorophenol molecules, which is applied in two fields, can solve the problems of non-uniform binding sites, affecting the separation effect, and excessively wide chromatographic peaks, so as to avoid non-selective adsorption, expand the application field, The effect of high adsorption selectivity

Inactive Publication Date: 2009-06-17
RES CENT FOR ECO ENVIRONMENTAL SCI THE CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] Due to the heterogeneity of the binding site and the difficulty in determining the actual available functional groups, when MIPs are used as the stationary phase of high-performance liquid chromatography (HPLC), the chromatographic peaks are often too broad and tailed, thereby reducing the column efficiency. affect the separation

Method used

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  • 2,4,6-trichlorophenol molecular imprinting microsphere polymer
  • 2,4,6-trichlorophenol molecular imprinting microsphere polymer
  • 2,4,6-trichlorophenol molecular imprinting microsphere polymer

Examples

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Effect test

Embodiment 1

[0051] With 2,4,6-trichlorophenol as template molecule, toluene-acetonitrile mixed solvent (1:3, v / v) as solvent, methacrylic acid as functional monomer, divinylbenzene as cross-linking agent, azo Diisobutyronitrile is an initiator, template molecule: functional monomer: crosslinking agent: initiator=1:4:20:0.66 (molar ratio), thermal initiation polymerization forms molecularly imprinted microsphere polymer, and this polymer has It has obvious specific adsorption, and its maximum adsorption capacity for 2,4,6-trichlorophenol as a template molecule is 350.35 mg / g.

Embodiment 2

[0053] With 2,4,6-trichlorophenol as the template molecule, the mixed solvent of toluene acetonitrile (1:3, v / v) as the solvent, 4-vinylpyridine as the functional monomer (4-VP), divinylbenzene As a cross-linking agent, azobisisobutyronitrile is an initiator, template molecule: functional monomer: cross-linking agent: initiator = 1:4:20:0.66 (molar ratio), thermally induced polymerization to form molecularly imprinted microspheres Polymer, the particle size of this polymer ranges from 2.5 to 5.0 μm, and the maximum adsorption capacity is 272.83 mg / g.

[0054] II. Selection of crosslinking agent

Embodiment 3

[0056] With 2,4,6-trichlorophenol as template molecule, toluene / acetonitrile mixed solvent (1:3, v / v) as solvent, methacrylic acid as functional monomer, divinylbenzene as crosslinking agent, coupling Azodiisobutyronitrile is an initiator, template molecule: functional monomer: crosslinking agent: initiator=1:4:20:0.66 (molar ratio), thermally induced polymerization to form a molecularly imprinted microsphere polymer, this polymer It has obvious specific adsorption, and its maximum adsorption capacity for 2,4,6-trichlorophenol as a template molecule is 350.35 mg / g.

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Abstract

The invention provides a 2, 4, 6-trichlorophenol molecular engram microsphere polymer. The invention also provides a method for preparing the 2, 4, 6-trichlorophenol molecular engram microsphere polymer. The invention also provides application of the 2, 4, 6-trichlorophenol molecular engram microsphere polymer in enriching and / or separating 2, 4, 6-trichlorophenol. The invention also provides the application of the 2, 4, 6-trichlorophenol molecular engram microsphere polymer in monitoring and / or processing the 2, 4, 6-trichlorophenol in an environmental water sample. The invention also provides a method for detecting and / or processing the 2, 4, 6-trichlorophenol in a sample through the 2, 4, 6-trichlorophenol molecular engram microsphere polymer. The polymer has simple and convenient preparation, an even grain size, a large specific surface area and pore volume, and high absorption selectivity. The polymer can be used for carrying out the experiment directly in the water environment without excessive other organic agents. The polymer is environmentally friendly and has a high absorption speed.

Description

technical field [0001] The invention belongs to the technical field of environmental monitoring and treatment, and further, the invention belongs to the field of molecularly imprinted microsphere polymers for pollutant molecules. Specifically, the present invention relates to a molecularly imprinted microsphere polymer of 2,4,6-trichlorophenol, a preparation method of the molecularly imprinted microsphere polymer, an application of the molecularly imprinted microsphere polymer, and the use of the molecularly imprinted microsphere polymer Methods for monitoring and / or handling imprinted microsphere polymers. Background technique [0002] Chlorophenols are the most widely used, highly toxic and seriously polluting compounds among aromatic compounds. It mainly comes from pollution during use, such as use as a pesticide, wood preservative, and discharge of industrial wastewater (such as pulp bleaching wastewater). Because chlorophenol has a certain solubility in water, and bec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F2/44C08F220/06C08F4/04C08K5/136C08J9/26G01N30/50
Inventor 林金明冯钦忠赵利霞
Owner RES CENT FOR ECO ENVIRONMENTAL SCI THE CHINESE ACAD OF SCI
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