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Preparation method and application of copper (II) ion imprinting polyurethane

A technology of ion imprinting and polyurethane, applied in chemical instruments and methods, other chemical processes, water/sludge/sewage treatment, etc., to achieve fast adsorption rate and high adsorption selectivity

Active Publication Date: 2016-06-08
HUAIHAI INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Polyurethane-based copper (II) ion-imprinted polymer materials have not been reported or disclosed

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Example 1 Preparation and properties of copper (II) ion-imprinted polyurethane foam

[0035] Weigh 30 grams of 5-((N-chloride, N-dihydroxyethyl-N-methyl-ammonium) methyl) salicylaldoxime and 12 grams of copper sulfate pentahydrate and dissolve in deionized water, stir at room temperature for 30min, spin Evaporate and concentrate, and after cooling, dark blue crystals are precipitated as bis(5-(((N, N-di(β-hydroxyethyl)-N-methyl-ammonium) methyl) salicylaldoxime) copper(II) The complex is 30.4 g, and the yield is 90.8%.

[0036] 30 grams of bis(5-((N, N-chloride, N-bis(β-hydroxyethyl)-N-methyl-ammonium) methyl) salicylaldoxime) copper(II) complex with a hydroxyl value of 56 mgKOH / g, 42 grams of polyether trihydric alcohol with an average molecular weight of 3000-4000, 13 grams of glycerin and 30 grams of N, N-dimethylformamide, mix well, and then add 0.25 grams of dibutyltin dilaurate, triethylene dilaurate 0.25 grams of amine, 25 grams of pentane and 2.4 grams of dei...

Embodiment 2

[0045] 30 grams of bis(5-((N, N-chloride, N-bis(β-hydroxyethyl)-N-methyl-ammonium) methyl) salicylaldoxime) copper(II) complex with a hydroxyl value of 56 mgKOH / g, 42 grams of polyether trihydric alcohol with an average molecular weight of 3000-4000, 13 grams of glycerin and 130 grams of N, N-dimethylformamide are mixed evenly, and then 0.25 grams of dibutyltin dilaurate and triethylene dilaurate are added. 0.25 g of amine, and fully stirred; finally added 58 g of diphenylmethane diisocyanate, stirred quickly and mixed evenly, polymerized at room temperature for 6 hours, aged at 50°C for 6 hours, and then extruded and granulated in deionized water. Prepare blue copper (II) ion complex polymer resin particles; use ethyl acetate / methanol (volume ratio=1:5) mixed solution to rinse the obtained resin particles for 48 hours, and use 2.0mol / L hydrochloric acid to continue to rinse After 30 minutes, rinse with deionized water until neutral, and dry in vacuum to obtain copper (II) io...

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Abstract

The invention provides a preparation method of a polyurethane base copper (II) ion imprinting polymer with high adsorption capacity, high selectivity and quick adsorption rate. Copper (II) ion imprinting polyurethane serves as a solid phase adsorber, and an effective method is provided for removing copper (II) ions in various water systems and aided detection, separation and enrichment on the copper (II) ions in the various water systems. The copper (II) ion imprinting polyurethane can be formed by foam, diaphragm plate, spun fiber, coating, package or particle processing.

Description

technical field [0001] The invention relates to a copper (II) ion imprinted polymer and its preparation method and application, in particular to a polyurethane-based copper (II) imprinted polymer, which is used for the concentration, enrichment, separation and detection of copper (II), and belongs to The field of functional polymer materials. technical background [0002] Ion-imprinted polymers are a branch of imprinted polymers, and one of the basic raw materials for preparing ion-imprinted polymers is a polymerizable ligand or a chelating ligand. The polymerizable ligand or chelating ligand can form a stable complex with the template (referring to the transition metal ion), and the steric structure is stable through the copolymerization reaction with the crosslinking agent, and the orientation is strong, which is beneficial to the preparation Ion-imprinted polymers with high selectivity and stable imprinting function are the preferred solid-phase selective extraction mate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/66C08G18/48C08G18/32C08J9/14C08J9/28B01J20/26C02F1/28C02F101/20
CPCB01J20/262B01J20/265B01J20/268C02F1/285C02F2101/20C08G18/3819C08G18/4829C08G18/6677C08G2101/00C08J9/141C08J9/28C08J2203/14C08J2375/08
Inventor 张田林李京昊张可人岳夏丹
Owner HUAIHAI INST OF TECH
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