Aromatic polymer anion exchange resin with side chain containing sulfonamide quaternary ammonium salt, and preparation method and application thereof

An aromatic polymer and sulfonamide-containing technology, which is applied in anion exchange, ion exchange, chemical instruments and methods, etc., can solve problems such as resistance and high price of perfluorinated polymer base membranes, and achieve strong ion selectivity , high-efficiency anion conduction, and extensive development potential

Inactive Publication Date: 2014-10-15
NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the high price of perfluoropolymer-based membra

Method used

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  • Aromatic polymer anion exchange resin with side chain containing sulfonamide quaternary ammonium salt, and preparation method and application thereof
  • Aromatic polymer anion exchange resin with side chain containing sulfonamide quaternary ammonium salt, and preparation method and application thereof
  • Aromatic polymer anion exchange resin with side chain containing sulfonamide quaternary ammonium salt, and preparation method and application thereof

Examples

Experimental program
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Embodiment 1

[0037] In this embodiment, the anion exchange resin is a polymer with polyetheretherketone as the main chain and side chains containing sulfonamidoethyltrimethylammonium iodide, such as figure 2 As shown, the synthesis method of the anion exchange membrane includes the following steps.

[0038] (1) Sulfonating polyetheretherketone to obtain sulfonated polyetheretherketone;

[0039] (2) Dissolve 15.00g of sulfonated polyether ether ketone in 300ml of thionyl chloride, slowly drop 20ml of pyridine into it, and react at reflux temperature for 24h. After the reaction, pour the mixed solution into 3L of deionized water , a white solid was precipitated, filtered, and washed with deionized water until neutral to obtain sulfonyl chloride polyether ether ketone;

[0040] (3) Dissolve 5.76g of the sulfonyl chloride polyetheretherketone obtained in step (2) and 3.83g of N′,N,N-trimethylethylenediamine in 120ml of chloroform, and slowly dropwise add 8ml of trimethylethylenediamine Ethy...

Embodiment 2

[0045] In this embodiment, the anion exchange resin is a polymer whose main chain is polyether ether ketone, and the side chain contains sulfonamidoethyltrimethylammonium bromide. The synthesis method of the anion exchange resin includes the following steps.

[0046] (1) Sulfonating polyetheretherketone to obtain sulfonated polyetheretherketone;

[0047] (2) Dissolve 15.00g of sulfonated polyether ether ketone in 300ml of thionyl chloride, slowly drop 20ml of pyridine into it, and react at reflux temperature for 24h. After the reaction, pour the mixed solution into 3L of deionized water , a white solid was precipitated, filtered, and washed with deionized water until neutral to obtain sulfonyl chloride polyether ether ketone;

[0048] (3) Dissolve 5.76g of sulfonyl chloride polyetheretherketone obtained in step (2) and 6.76g of N′-benzyl-N,N-dimethylethylenediamine in 120ml of chloroform, and add 2.30g of NaOH , reacted at 60°C for 48 hours, then filtered, and washed with eth...

Embodiment 3

[0051] In this embodiment, the anion exchange resin is a polymer whose main chain is polyether ether ketone, and the side chain contains sulfonamidopropyltrimethylammonium chloride. The synthesis method of the anion exchange resin includes the following steps.

[0052] (1) Sulfonating polyetheretherketone to obtain sulfonated polyetheretherketone;

[0053] (2) Dissolve 15.00g of sulfonated polyether ether ketone in 300ml of thionyl chloride, slowly drop 20ml of pyridine into it, and react at reflux temperature for 24h. After the reaction, pour the mixed solution into 3L of deionized water , a white solid was precipitated, filtered, and washed with deionized water until neutral to obtain sulfonyl chloride polyether ether ketone;

[0054] (3) Dissolve 5.76g of sulfonyl chloride polyetheretherketone obtained in step (2) and 4.36g of N′,N,N-trimethyl-1,3-propanediamine in 120ml of dimethyl sulfoxide, Add 3.34g of potassium fluoride, react at 60°C for 48h, then filter, wash with e...

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Abstract

The invention discloses a novel anion exchange resin. The anion exchange resin treats aromatic polymer as a main chain, and is modified to make the side chain of the anion exchange resin contain sulfonamide quaternary ammonium salt, so the ion selectivity is strong, and anions can be efficiently conducted, thereby the anion exchange resin has good application values and development potentials in fuel cells, water treatment, wet method metallurgy, the electrochemistry, chemical industry separation, the atomic energy industry and the like.

Description

technical field [0001] The invention belongs to the field of macromolecular materials, and in particular relates to a novel aromatic polymer anion exchange resin containing a sulfonamide group quaternary ammonium salt side chain and its preparation method and application. The membrane prepared by the anion exchange resin has low surface resistance, high ion With the advantages of strong selectivity, high mechanical strength, novel preparation method and low price, it has wide application value and development potential in fuel cells, water treatment, hydrometallurgy and electrochemistry, chemical separation and atomic energy industry, etc. Background technique [0002] The mechanism of action of the anion exchange membrane is to fix the cations on the polymer main chain, and achieve the purpose of ion exchange through the selective permeation of the anions. With the widespread application of anion exchange membranes in separation and purification, people have conducted in-de...

Claims

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Application Information

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IPC IPC(8): C08G8/02C08G75/20C08G75/23B01J41/12B01J41/13
Inventor 薛立新张尧剑章勤
Owner NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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