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Synthetic method of molecule marking polymer particles or beads conducting selective detoxification on natural water polluted by endosulfans, analogs or derivatives, and product

A technology of polymer particles and molecular imprinting, applied to its analogs or derivatives, preparation of chloramphenicol imprinted polymer compositions, removal of endosulfan field

Inactive Publication Date: 2014-12-24
COUNCIL OF SCI & IND RES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is evident from the prior art that to date there is no method for detoxifying natural water contaminated with pesticides

Method used

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  • Synthetic method of molecule marking polymer particles or beads conducting selective detoxification on natural water polluted by endosulfans, analogs or derivatives, and product
  • Synthetic method of molecule marking polymer particles or beads conducting selective detoxification on natural water polluted by endosulfans, analogs or derivatives, and product
  • Synthetic method of molecule marking polymer particles or beads conducting selective detoxification on natural water polluted by endosulfans, analogs or derivatives, and product

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] Synthesis of chlorendic acid-imprinted and non-imprinted polymer particles using ethylene glycol dimethacrylate (EGDMA)

[0064] 1.0mmol of chlorendic acid (CA) (0.39g), 2.0mmol of 4-vinylaniline (VA) (0.24g) and 1.0mmol of acrylamide (AA) (0.07g) were placed in a 50ml round bottom flask and dissolved in 10 ml of hexane with stirring and cooled to 0°C. 20 mmol of ethylene glycol dimethacrylate (EGDMA) (4 ml) and 50 mg of 2,2'-azobisisobutyronitrile (AIBN) were added thereto and stirred until a uniform solution was obtained. The monomer mixture was then cooled to 0 °C with N 2 Wash for 10 minutes, seal and heat in an oil bath at 80°C while stirring for about 30 minutes. The resulting material was washed with distilled water, dried overnight and ground to fine particles in a mortar and pestle. The chlorendic acid-imprinted polymer particles were refluxed with methanol for 4 hours in a Soxhlet extractor, filtered, washed with 500 ml of distilled water and left overnight...

Embodiment 2

[0066] Synthesis of chlorendic acid-imprinted and non-imprinted polymer particles using 1,1,1-tris-(hydroxymethyl)-propane trimethacrylate (TRIM)

[0067] 1.0mmol of chlorendic acid (CA) (0.39G), 2.0mmol of 4-vinylaniline (VA) (0.24g) and 1.0mmol of acrylamide (AA) (0.07g) were placed in a 50ml round bottom flask and dissolved in 10 ml of hexane with stirring and cooled to 0°C. 20 mmol of 1,1,1-tris-(hydroxymethyl)-propane trimethacrylate (TRIM) (7 ml) and 50 mg of 2,2'-azobisisobutyronitrile (AIBN) were added thereto and stirred until a homogeneous solution is obtained. The monomer mixture was then cooled to 0 °C with N 2 Wash for 10 minutes, seal and heat in an oil bath at 80°C while stirring for about 30 minutes. The resulting material was washed with distilled water, dried overnight and ground to fine particles in a mortar and pestle. CA imprinted polymer particles (2 g) were refluxed with methanol for 4 hours in a Soxhlet extractor, filtered, washed with 500 ml of dis...

Embodiment 3

[0069] Synthesis of chlorendic acid-imprinted polymer microbeads

[0070] 1.0mmol of CA (0.39g), 2.0mmol of VA (0.24g) and 1.0mmol of AA (0.07g) were placed in a 100ml round bottom flask and dissolved in 5ml of tetrahydrofuran (THF) by stirring, followed by It was cooled to 0 °C. 20 mmol of TRIM (7 ml) and 50 mg of AIBN were added thereto and stirred until a homogeneous solution was obtained. Add 50 ml of 0.5% (w / v) polyvinyl alcohol aqueous solution (prepared by heating to 60° C.) dropwise to the monomer mixture during 30 min, and cool it to 0° C. 2 Wash for 10 minutes, seal and heat in an oil bath at 80°C while stirring for about 3 hours. The resulting microbeads were filtered, dried at 50° C. and then refluxed with methanol in a Soxhlet extractor for 4 hours. The resulting washed beads were filtered, washed again with 500 ml of water and dried at 50°C. This yielded 7.05 g of pseudotemplate-imprinted polymer beads (see Figure 5 ).

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Abstract

The invention relates to a synthetic method of molecule marking polymer particles or beads conducting selective detoxification on natural water polluted by endosulfans, analogs or derivatives, and a product. The invention more specifically relates to a crosslinking polymer composition through a molecule marking technology based on non-covalent strategy. The preparation of the crosslinking polymer particles and beads comprises the steps of adding functional monomers and additional monomers to chlorendicacid (template), and polymerizing with proper cross-linking agents and initiators. The invention also describes a method for completely removing endosulfans, analogs or derivatives from contaminated deionized water and polluted natural water, and for removing particles or beads of regeneration fake template markings by using methanol and ethanol.

Description

technical field [0001] The present invention relates to molecularly imprinted polymer particles or microbeads for selective detoxification of natural water polluted by endosulfan, its analogues or derivatives, and a method for its preparation. The present invention also relates to methods of using said polymer composition for the removal of endosulfan, its analogues or derivatives. More particularly, the present invention provides methods for the preparation of chlorendenic acid-imprinted polymer compositions which are useful for the selective removal of endosulfan, its analogues or derivatives from polluted natural waters. useful. Background technique [0002] Detoxification of pesticide-contaminated samples has historically been performed by photocatalytic degradation (Evgenidou, E, Konstantinou, I., Fytianos, K., Poligs, I., Water research 41 (2007) 2015; Arques, A. Armat, A. M. Garcia Ripoli , A, Vicente, R., J. Hazard. Mater. 146 (2007) 447), biodegradable or carbon m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F222/14C08F212/14C08F220/56C08J9/26B01J20/26B01J20/28B01J20/30B01J20/34B01D15/08C02F1/58
Inventor K·普拉萨德J·M·格拉迪斯T·P·劳
Owner COUNCIL OF SCI & IND RES
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