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Multifunctional polystyrene chelating resin containing quaternary ammonium group and coumarin acylhydrazone and application thereof

A technology of polystyrene resin and coumarin acylhydrazone, applied in chemical instruments and methods, analysis through chemical reaction of materials, water/sludge/sewage treatment, etc., can solve the problem that the solid phase cannot be marked or displayed in time The extraction agent is in a saturated adsorption state and does not have the functions of detection, identification, and analysis of heavy metal ions, etc., and achieves the effect of simple and easy manual operation, simple and easy preparation technology, and accelerated water wetting speed

Inactive Publication Date: 2012-06-20
HUAIHAI INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Solid-phase extraction technology is a new method of concentration, enrichment and recovery of heavy metal ions that has been reported more in the past two decades, but inorganic solid-phase extraction agents, polymer chelating solid-phase extraction agents and inorganic / organic composite solid-phase extraction The agent only has the functions of pre-concentration, enrichment, and recovery of heavy metal ions, but does not have the functions of detection, identification, and analysis of heavy metal ions, especially the saturated adsorption state of the solid-phase extraction agent cannot be marked or displayed in time

Method used

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  • Multifunctional polystyrene chelating resin containing quaternary ammonium group and coumarin acylhydrazone and application thereof
  • Multifunctional polystyrene chelating resin containing quaternary ammonium group and coumarin acylhydrazone and application thereof
  • Multifunctional polystyrene chelating resin containing quaternary ammonium group and coumarin acylhydrazone and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Preparation and characteristics and application of embodiment 1 PS-MASC-1 multifunctional polystyrene chelating resin

[0031] Step 1 Preparation of PS-MA

[0032]

[0033] Take commercially available 100 grams of polystyrene porous pellets, 180 grams of 1,4-dioxane, 200 grams of 45% by mass percentage of polystyrene porous beads with a swollen cross-linking degree of 4 and a chlorine content of 14.7%. Put the amine aqueous solution into the reaction bottle, stir and raise the temperature to 80-95°C for 60 hours, then add 30 grams of potassium carbonate, and continue to stir for 1 hour. The pellets were filtered out from the reaction system, washed three times with deionized water, and dried to obtain 120.3 g of PS-MA. Elemental analysis: the nitrogen content was 5.58%.

[0034] Step 2 Preparation of PS-MAS

[0035]

[0036]50 g of 5-chloromethyl salicylaldehyde was weighed and dissolved in 200 ml of ethyl acetate, and 100 g of PS-MA obtained in Step 1 was put i...

Embodiment 2

[0041] The preparation of embodiment 2 PS-EACS-1 multifunctional polystyrene chelating resin

[0042]

[0043] According to the step and the method of embodiment 1, change the dimethylamine among the embodiment 1 into diethylamine, promptly make the orange-yellow PS-EACS-1 multifunctional polystyrene chelating resin. PS-EACS-1 multifunctional polystyrene chelating resin absorbs characteristic peak λmax=337nm and fluorescence emission λmax=443nm in chlorobenzene dilute solution. Use Zn 2+ , Pb 2+ or Cu 2+ Ion aqueous solution impregnated PS-EACS-1 multifunctional polystyrene chelating resin, respectively showing orange-red, orange-yellow and dark green, all without fluorescence emission phenomenon.

Embodiment 3

[0044] The preparation of embodiment 3 PS-MACS-2 multifunctional polystyrene chelating resin

[0045]

[0046] According to the steps and methods of Example 1, the 7-diethylamino-3-coumarin hydrazide in Example 1 was changed to coumarin hydrazide to obtain light yellow PS-MACS-2 multifunctional Polystyrene chelating resin.

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Abstract

The invention provides multifunctional polystyrene chelating resin, which is laterally linked with a quaternary ammonium salt and coumarin acylhydrazone and belongs to a novel polystyrene material with multiple functions of in-situ detection, quick analysis, effective separation, easiness for regenerating, capability of recovering heavy metals and the like. The multifunctional polystyrene chelating resin provided by the invention has the characteristics of high raw material commercialization, simple, convenient and practical synthesis technology, safety and convenience for using, and the like, and is convenient for recovering heavy metal ions from sewage treatment tanks in industrial enterprises.

Description

technical field [0001] The invention relates to a polystyrene functional polymer material, in particular to a multifunctional chelating resin with polystyrene side-linked quaternary ammonium groups and coumarin acylhydrazone groups, belonging to the field of functional materials. It is used for the detection and removal of heavy metal ions in water resources and beverages. technical background [0002] such as Hg 2+ 、Cd 2+ , Zn 2+ , Pb 2+ 、Cr 3+ or Cu 2+ Heavy metal ions such as heavy metal ions are the main substances that pollute the earth's surface water resources, fruit juices and drinking water. Traditional in-situ detection and analysis of heavy metal ions in water is difficult, complicated operation, high work intensity, long cycle, and many types of materials. The fluorescent chemical sensor detection technology and ion intelligent recognition technology reported in recent years can realize the in-situ recognition and detection of various heavy metal ions. The...

Claims

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Application Information

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IPC IPC(8): C08F12/08C08F8/30C08F8/44G01N21/76C02F1/62
Inventor 营爱玲马娟娟刘霖张田林
Owner HUAIHAI INST OF TECH
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