Preparation method of membrane material used for adsorbing alkaloid

A membrane material, alkaloid technology, applied in chemical instruments and methods, alkali metal compounds, alkali metal oxides/hydroxides, etc., can solve the problem of filter membrane permeability or low permeability, base membrane adsorption affinity lower problem

Active Publication Date: 2014-07-16
山西铁居环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the commercial membranes currently on the market have the disadvantages of low permeability or permeability of the filter membrane and low adsorption affinity of the base membrane.

Method used

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  • Preparation method of membrane material used for adsorbing alkaloid
  • Preparation method of membrane material used for adsorbing alkaloid
  • Preparation method of membrane material used for adsorbing alkaloid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] A method for preparing a membrane material for adsorbing alkaloids, the steps are:

[0039] (1) Preparation of chloromethylated polysulfone casting film:

[0040] Put 2 g of polysulfone into a four-necked flask equipped with a stirrer and a thermometer, add 10 mL of dichloromethane to completely dissolve the polysulfone, then add 2.8 mLd of 1,4-dichloromethoxybutane and 0.26 mL Lewis acid catalyst SnCl 4 , react at 25°C for 3 h, use ethanol as a precipitant to precipitate the product polymer, wash and dry in vacuum to obtain chloromethylated polysulfone CMPSF, then take 0.8g CMPSF and dissolve it in 50mL chloroform, pour it into the culture cast in a dish to form a film, and place it in a vacuum oven to remove the solvent to obtain a chloromethylated polysulfone cast film CMPSF film with a film thickness of about 50 μm;

[0041] (2) Preparation of aminated polysulfone membrane: Soak the CMPSF membrane in ethylenediamine to cause a nucleophilic substitution reaction be...

Embodiment 2

[0046] A method for preparing a membrane material for adsorbing alkaloids, the steps are:

[0047] (1) Preparation of chloromethylated polysulfone casting film:

[0048] Put 2 g of polysulfone into a four-necked flask equipped with a stirrer and a thermometer, add 10 mL of dichloromethane to completely dissolve the polysulfone, then add 2.8 mLd of 1,4-dichloromethoxybutane and 0.26 mL Lewis acid catalyst SnCl 4 , react at 25°C for 3 h, use ethanol as a precipitant to precipitate the product polymer, wash and dry in vacuum to obtain chloromethylated polysulfone CMPSF, then take 0.8g CMPSF and dissolve it in 50mL chloroform, pour it into the culture cast in a dish to form a film, and place it in a vacuum oven to remove the solvent to obtain a chloromethylated polysulfone cast film CMPSF film with a film thickness of about 50 μm;

[0049] (2) Preparation of aminated polysulfone membrane: Soak the CMPSF membrane in ethylenediamine at 25°C to cause a nucleophilic substitution rea...

Embodiment 3

[0053] A method for preparing a membrane material for adsorbing alkaloids, the steps are:

[0054] (1) Preparation of chloromethylated polysulfone casting film:

[0055] Put 2 g of polysulfone into a four-necked flask equipped with a stirrer and a thermometer, add 10 mL of dichloromethane to completely dissolve the polysulfone, then add 2.8 mLd of 1,4-dichloromethoxybutane and 0.26 mL Lewis acid catalyst SnCl 4 , react at 25°C for 3 h, use ethanol as a precipitant to precipitate the product polymer, wash and dry in vacuum to obtain chloromethylated polysulfone CMPSF, then take 0.8g CMPSF and dissolve it in 50mL chloroform, pour it into the culture cast in a dish to form a film, and place it in a vacuum oven to remove the solvent to obtain a chloromethylated polysulfone cast film CMPSF film with a film thickness of about 50 μm;

[0056] (2) Preparation of aminated polysulfone membrane: Soak the CMPSF membrane in ethylenediamine at 25°C to cause a nucleophilic substitution rea...

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Abstract

The invention discloses a preparation method of a membrane material used for adsorbing alkaloid. The preparation method comprises the steps that (1) 2 g of polysulfone are dissolved into 10 mL of dichloromethane, then 2.8 mL of 1,4-dichloro-methoxy butane and 0.26 mL of Lewis acid catalysts SnCl4 are added, the mixture reacts for three hours at the temperature of 25 DEG C to obtain CMPSF, then trichloromethane tape casting membrane forming is conducted, and a CMPSF membrane is obtained; (2) the CMPSF membrane is soaked in ethidene diamine and reacts for four to twenty minutes, and an AMPSF membrane is obtained; (3) 70 mL of mixed liquid containing LDMF and water is added into 0.1-0.15 g of the AMPSF membrane, swelling continues for two hours, 3.3-3.5 mL of single MAA are added, 5 mL of aqueous solution with 0.035-0.040 g of initiator ammonium persulfate dissolved are dissolved into the reaction system, reaction continues for 8-10 hours at the temperature of 50 DEG C on the condition of stirring, and a finished product is obtained. By means of the preparation method, grafting membranes with the PMAA grafting degree being 4.62 mg/cm <2> can be prepared and the finished product has a strong adsorption effect on alkaloid compounds.

Description

technical field [0001] The invention relates to a preparation method of a membrane material for adsorbing alkaloids. Background technique [0002] As a new type of scientific and industrial technology, membrane technology has been widely used in many industrial and scientific and technological fields such as material separation, environmental governance, sensor construction, drug release, blood purification, enzyme immobilization, and fuel cells. However, the commercial membranes currently on the market have the disadvantages of low membrane permeability or permeability and low adsorption affinity of the base membrane. [0003] Graft polymerization on the basement membrane surface is an important way to obtain new functional and high-performance membranes. By carrying out graft polymerization of functional monomers on the surface of the basement membrane, not only can the performance of the basement membrane be significantly improved, but also the basement membrane can be f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J7/16C08J7/12C08L81/06B01J20/26B01J20/28B01J20/30
Inventor 安富强杜瑞奎高保娇李延斌
Owner 山西铁居环保科技有限公司
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