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Polystyrene chelate resin with coumarin acylhydrazone in side chain and applications thereof

A technology of coumarin acylhydrazone and polystyrene, which is applied in the field of polystyrene chelating resin and polystyrene functional polymer materials, can solve the problem of not having the functions of detection, identification and analysis of heavy metal ions, which cannot be marked or displayed in time Solving problems such as the saturated adsorption state of solid-phase extraction agents, achieving the effects of simple manual operation, simple and easy preparation technology, and low price

Inactive Publication Date: 2013-02-20
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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  • Polystyrene chelate resin with coumarin acylhydrazone in side chain and applications thereof
  • Polystyrene chelate resin with coumarin acylhydrazone in side chain and applications thereof
  • Polystyrene chelate resin with coumarin acylhydrazone in side chain and applications thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Preparation and characteristics and application of embodiment 1 PS-CCS-1 multifunctional polystyrene chelating resin

[0044] Step 1 Preparation of PS-C

[0045]

[0046] Weigh 10 grams of commercially available swollen polystyrene pellets with a crosslinking degree of 4 and a chlorine content of 17%, 80 grams of 1,4-dioxane, 20 grams of anhydrous potassium carbonate and 13 grams of 3- Put cyano-7-hydroxycoumarin into the reaction bottle, stir and raise the temperature at 80-95°C for 6 hours, filter the pellets from the reaction system, wash with deionized water for 3 times, and dry to obtain 16.3 grams of PS-C , Elemental analysis: nitrogen content 2.27%.

[0047] Step 2 Preparation of PS-CC

[0048]

[0049] Put 10 grams of PS-C obtained in Step 1 into a mixed solution of 50 grams of hydrazine hydrate with a concentration of 80% by mass and 40 grams of 1,4-dioxane, stir and raise the temperature to 100-120° C. for 48 hours. The pellets were taken out by filtr...

Embodiment 2

[0057] The preparation of embodiment 2 PS-CCS-2 multifunctional polystyrene chelating resin

[0058]

[0059] Get the PS-CC and BES of embodiment 1 step two gained as raw material, adopt the operation method of embodiment 1 step three and four, make the PS-CCS-2 multifunctional polystyrene chelating resin of orange. PS-CCS-2 multifunctional polystyrene chelating resin absorbs characteristic peak λmax=312nm and fluorescence emission λmax=467nm in chlorobenzene dilute solution. Use Zn 2+ , Pb 2+ or Cu 2+ Ion aqueous solution impregnated PS-CCS-2 multifunctional polystyrene chelating resin, showing orange red, orange and dark green respectively, and there was no fluorescence emission phenomenon.

Embodiment 3

[0060] The preparation of embodiment 3 PS-CCS-3 multifunctional polystyrene chelating resin

[0061]

[0062] Get the PS-CC and BMS that embodiment 1 step two gains are raw material, adopt the operating method of embodiment 1 step three and four, make the PS-CCS-2 multifunctional polystyrene chelating resin of orange.

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Abstract

The invention provides polystyrene chelate resin with coumarin acylhydrazone and a quaternary ammonium salt in side chains. The new polystyrene material has multiple functions of in-situ detection, rapid analysis, effective separation, easy regeneration and heavy metal recycling. The multifunctional polystyrene chelate resin provided by the invention is characterized by high raw material commercialization, simple and practical synthesis technology, is safe and convenient in operation and the like, and is convenient for the heavy metal ion recycling in the sewage treatment tank of the industrial enterprise.

Description

technical field [0001] The invention relates to a polystyrene functional macromolecular material, in particular to a polystyrene chelating resin with side chains of coumarin acylhydrazone and a quaternary ammonium salt, and belongs to the field of functional materials. 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 cause the pollution of the earth's surface water environment and endanger the safety of the catering industry, but heavy metal ions are also "vitamins" for industrial production of electronic components. Content analysis, species separation, enrichment and recovery are of great significance. [0003] Traditional analysis methods in situ detection and analysis of heavy metal ions in water are difficult, complex operations, high work intensity, long cycle, and many types of materials. The fluorescent chemical sensor detection technology and ion intellige...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F112/08C08F8/44
Inventor 营爱玲刘霖马娟娟李赞谢俊华
Owner HUAIHAI INST OF TECH