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A kind of preparation method of rhein adsorption material

An adsorption material, the technology of rhein, which is applied in the field of preparation of rhein adsorption materials, can solve the problems of molecularly imprinted polymers with weak adsorption capacity, low adsorption capacity, difficult to apply rhein to high-efficiency separation and enrichment, etc., to achieve specific recognition Ability, simple preparation method, high selectivity effect

Active Publication Date: 2021-12-03
GUIZHOU RES INST OF CHEM IND
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Problems solved by technology

Since rhein is a weakly acidic substance, the hydrogen bonds formed between rhein and methacrylic acid molecules are very weak, and even hydrogen bonds will not be formed in strong polar solvents. Therefore, the prepared molecularly imprinted polymer has Due to its weak adsorption capacity and low adsorption capacity, it is difficult to apply to the efficient separation and enrichment of rhein in complex systems

Method used

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  • A kind of preparation method of rhein adsorption material
  • A kind of preparation method of rhein adsorption material
  • A kind of preparation method of rhein adsorption material

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[0048] Such as figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 and Figure 6 As shown, the preparation method of the rhein adsorption material in Examples 1 to 27 of the present application is as follows:

[0049] (1) Add the porogen tetrahydrofuran into the reactor, and then add the template molecule rhein, the functional monomer 1-amino-2-p-styryl ethane, the crosslinking agent divinylbenzene, and the initiator azodiiso Butyronitrile was added into the reactor one by one, ultrasonic treatment was performed to fully dissolve the material, an inert gas was introduced, the reactor was sealed, and the reaction was carried out in a constant temperature water bath at 65°C for 8 hours. After the reaction, a highly cross-linked hard solid was obtained. Here, the mass ratio of the template molecule rhein, the functional monomer 1-amino-2-p-styrylethane, the crosslinking agent divinylbenzene, the initiator azobisisobutyronitrile and the porogen tetrahydrofuran is as follo...

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Abstract

The invention discloses a preparation method of a rhein adsorption material. First, a porogen is added into a reactor, and then a template molecule, a functional monomer, a crosslinking agent and an initiator are sequentially added to react to obtain a hard solid, and the hard solid is ground. into powder, and then obtained through Soxhlet extraction and vacuum drying; the rhein adsorption material prepared by the application has high selectivity, adsorption rate and adsorption capacity for rhein, and can be applied to the adsorption and absorption of rhein in complex systems. The separation and purification has certain application value in the purification of rhein, and the preparation method is simple, the operation is convenient and the cost is low.

Description

technical field [0001] The invention belongs to the field of chemical organic polymer materials, and in particular relates to a preparation method of a rhein adsorption material. Background technique [0002] Rhein belongs to anthraquinone derivatives and is one of the main components of rhubarb. It has a wide range of pharmacological effects, such as anti-tumor, anti-virus, anti-diabetic nephropathy, antibacterial and anti-inflammatory activities. Therefore, research on extracting rhubarb from natural plants Acid-based functional materials are of great significance. [0003] Molecularly imprinted technology is a new technology developed on the basis of molecular recognition theory. Molecularly imprinted polymers prepared by this technology can recognize imprinted molecules in complex systems with high selectivity, and are simple to prepare, reusable, and have high mechanical strength. , Good stability. The use of molecularly imprinted polymers as adsorbents for solid phas...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F212/36C08F212/14C08J9/26B01J20/26B01J20/30
CPCB01J20/268C08F212/36C08J9/26C08F212/14
Inventor 张学敏龙来早邹金鑫周维黄绍兰陈晔张强马福波唐波
Owner GUIZHOU RES INST OF CHEM IND
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