Modified polyphenol amine material as well as preparation method and application thereof

A polyphenolic amine modification technology, applied in the field of modified polyphenolic amine materials and preparation, can solve the problems of poor acid and alkali resistance, poor water solubility resistance, etc., and achieve good acid and alkali resistance, good lipophilicity, and water solubility resistance excellent effect

Active Publication Date: 2022-08-05
QILU UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a modified polyphenolamine material and its preparation method and application. The preparation method is easy to operate, the process is controllable, the conditions are mild, and it is easy to popularize and use. The polyphenolamine composite adsorption material with ethylene-maleimide group solves the problems of poor water solubility and acid and alkali resistance of ordinary polyphenolamine adsorption materials, and can be applied to various wastewater treatment, with broad application prospects

Method used

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  • Modified polyphenol amine material as well as preparation method and application thereof
  • Modified polyphenol amine material as well as preparation method and application thereof
  • Modified polyphenol amine material as well as preparation method and application thereof

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preparation example Construction

[0025] In a first aspect, the present invention provides a method for preparing a modified polyphenolamine material, comprising the following steps:

[0026] The amine source and the phenol source are reacted to generate polyphenolamine;

[0027] Adding low molecular weight polystyrene-maleic anhydride to polyphenolamine to carry out imidization reaction;

[0028] The phenol source is added to the imidization reaction product, the Michael addition reaction is carried out with the free amine group, and then the amine source is added to extend the molecular chain to obtain the product;

[0029] The product is washed, separated, and freeze-dried by using an alkaline aqueous solution, to obtain the final product;

[0030] The amine source is diamine or polyamine; the phenol source is diphenol or polyphenol.

[0031] In some embodiments, the amine source is selected from one of ethylenediamine, butanediamine, hexamethylenediamine, phenylenediamine, polyethyleneimine, diethylenetr...

Embodiment 1

[0041] Weigh 1.26 g of tetraethylene pentamine and dissolve it in an appropriate amount of ultrapure water and place it on a magnetic stirrer to stir evenly, adjust the pH to 10 with NaOH, then weigh 0.22 g of catechol and dissolve it in water to prepare a solution, and then mix The catechol solution was added to the tetraethylene pentamine solution and continued to stir to react for 12 hours to form a polyphenolamine mixed solution, then weigh 0.67g of polystyrene-maleic anhydride and add it to the polyphenolamine mixed solution to disperse it uniformly. After homogenization, the mixed solution was transferred to a hydrothermal reactor to obtain polyphenolamine containing styrene-maleimide and polystyrene-maleimide through imidization reaction at 160° C. for 6 h. Transfer the mixed solution after the imidization reaction to a beaker and continue to stir for 12h, then add 0.66g of catechol and continue to stir for 24h, and then add 1.134g of tetraethylenepentamine to continue t...

Embodiment 2

[0047]Weigh 1.26 g of tetraethylene pentamine and dissolve it in an appropriate amount of ultrapure water and place it on a magnetic stirrer to stir evenly, adjust the pH to 10 with NaOH, then weigh 0.22 g of catechol and dissolve it in water to prepare a solution, and then mix The catechol solution was added to the tetraethylene pentamine solution and continued to stir to react for 12 hours to form a polyphenolamine mixed solution, then weigh 0.67g of polystyrene-maleic anhydride and add it to the polyphenolamine mixed solution to disperse it uniformly. After homogenization, the mixed solution was transferred to a hydrothermal reactor to obtain polyphenolamine containing styrene-maleimide and polystyrene-maleimide through imidization reaction at 160° C. for 6 h. Transfer the mixed solution after the imidization reaction to a beaker and continue to stir for 12h, then add 1.1g of catechol and continue to stir for 24h, and then add 2.52g of tetraethylenepentamine to continue the ...

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Abstract

The invention relates to the technical field of functional polymer materials, in particular to a modified polyphenol amine material and a preparation method and application thereof.The preparation method comprises the following steps that an amine source and a phenol source react to generate polyphenol amine; adding low molecular weight polystyrene-maleic anhydride into the polyphenol amine to carry out imidization reaction; adding a phenol source into an imidization reaction product, carrying out Michael addition reaction with free amido, and then adding an amine source to extend a molecular chain, so as to obtain a product; and washing, separating and freeze-drying the product by using an alkaline aqueous solution to obtain the product. The amine source is diamine or polyamine; the phenol source is diphenol or polyphenol. The preparation method is convenient to operate, controllable in process, mild in condition and convenient to popularize and use, and the prepared polyphenol amine composite adsorption material containing the styrene-maleimide group solves the problems that a common polyphenol amine adsorption material is poor in water solubility resistance and acid and alkali resistance, can be applied to treatment of various kinds of wastewater and has wide application prospects.

Description

technical field [0001] The invention relates to the technical field of functional polymer materials, in particular to a modified polyphenolamine material and a preparation method and application thereof. Background technique [0002] The statements herein merely provide background related to the present invention and do not necessarily constitute prior art. [0003] Heavy metals existing in various chemical states or chemical forms will remain, accumulate and migrate after entering the environment or ecosystem, causing harm. For example, even if the concentration of heavy metals discharged with wastewater is small, they can accumulate in algae and sediments, and be adsorbed by the body surface of fish and shellfish, resulting in the concentration of the food chain, thus causing pollution. At present, the commonly used methods for treating heavy metal ions mainly include chemical method, physical method and biological method. Among them, the adsorption method has many advan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G81/02C02F1/28C02F101/20
CPCC08G81/024C02F1/285C02F2101/20Y02W10/37Y02P10/20
Inventor 刘钦泽梁泽杨志洲姚金水乔从德张长斌
Owner QILU UNIV OF TECH
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