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Preparation method of super crosslinked porous polyionic liquid material and application of super crosslinked porous polyionic liquid material

A technology of polyionic liquids and ionic liquids is applied in the field of preparation of hypercrosslinked porous polyionic liquid materials, which can solve problems such as reducing surface energy, and achieve the effects of easy reuse, high yield and large specific surface area.

Inactive Publication Date: 2019-03-01
SHAOXING UNIVERSITY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The hypercrosslinked polymer network needs to be formed under strong solvation to ensure that the polymer chains are fully swollen. After the solvent volatilizes, the polymer chains tend to shrink and pack tightly, reducing the surface energy, but the rigid hypercrosslinked structure restricts conformational conversion and prevents shrinkage. Occupies space to become a pore structure]

Method used

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  • Preparation method of super crosslinked porous polyionic liquid material and application of super crosslinked porous polyionic liquid material
  • Preparation method of super crosslinked porous polyionic liquid material and application of super crosslinked porous polyionic liquid material
  • Preparation method of super crosslinked porous polyionic liquid material and application of super crosslinked porous polyionic liquid material

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Embodiment 1

[0019] A kind of preparation method of hypercrosslinked porous polyionic liquid material provided in this embodiment, its specific operation steps are as follows:

[0020] Step 1, the preparation of rigid diene ionic liquid monomer;

[0021] Add 1-vinylimidazole to ethyl acetate to make a 40% solution, cool in an ice-water bath, add a polymerization inhibitor, the amount of the polymerization inhibitor is 1% of the total mass, stir at below 5°C, and slowly add two The amount of thionyl chloride and thionyl chloride is half of the amount of vinyl imidazole, and it is dropped in about 60 minutes. After the drop is completed, it is automatically heated to room temperature and reacted for 2 hours, and then the temperature is continued to rise to 60°C for 4 hours. After washing with ethyl acetate and ether for 3 times, vacuum-dry at 60°C to obtain a rigid diene ionic liquid monomer, dissolve the rigid diene ionic liquid monomer in a certain acetone solvent, and add it to a solution...

Embodiment 2-4

[0025] Except for the following differences, all the other are the same as in Example 1, using the tertiary amine compounds shown in Table 1 respectively.

[0026] Table 1

[0027]

Embodiment 5-9

[0029] Except the following difference, all the other are identical with embodiment 1, adopt the coordination anion shown in table 2 respectively.

[0030] Table 2

[0031]

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Abstract

The invention provides a method of preparing a super crosslinked porous polyionic liquid material by ionic thermal polymerization and application of the super crosslinked porous polyionic liquid material. The method is characterized in that firstly, alkenyl tertiary amine and thionyl chloride are subjected to quaternization to form a rigid diene ionic liquid monomer; by ionic exchange, proper coordination anions are introduced; next, the ionic thermal polymerization is performed in a zinc chloride / potassium chloride composite molten salt system to obtain the super crosslinked porous polyionicliquid material; and the obtained material has wide application prospect. The method provided by the invention has the advantages that (1) the yield is high, and is 92 to 97 percent; (2) the specificsurface area of the prepared material is large and is 200 m<2> / g or above; (3) the material has a whole ionic liquid framework, and the active component content is high; (4) the preparation process issimple and convenient, and the raw materials can be easily obtained; (5) by adjusting the raw materials, the coordination anions and polymerization conditions, the material structure can be effectively regulated, so that the material can be widely used in the fields of catalysis, gas adsorption, waste water treatment, separation and the like; and (6) the material recovery and reuse are simple andconvenient, and the recovery can be realized through filtering.

Description

technical field [0001] The invention relates to a preparation method and application of a hypercrosslinked porous polyionic liquid material, belonging to the technical field of polymer chemical synthesis. Background technique [0002] Ionic liquids have excellent performance and are widely used, but they have disadvantages such as difficult recycling, high price, high viscosity, poor degradation, and inability to form. Immobilization can better solve the above problems, but the traditional loading method grafts a large volume of ionic liquid on the carrier, which is easy to cause pore blockage and low loading capacity. Porous polyionic liquids combine the specific properties of ionic liquids with the advantages of processable polymers, stable and durable, and adjustable structures, and are widely used in catalysis, adsorption separation, and electrochemistry. [0003] Porous polyionic liquids, especially pure polyionic liquid skeleton porous materials, are rarely studied, a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F126/02C08J9/26B01J31/06B01J35/10C07C253/30C07C255/41B01D53/18C02F1/00C08L39/00
CPCB01D53/18C02F1/00C07C253/30C08F126/02C08J9/26B01J31/0281B01D2257/504B01D2252/30B01J2231/4277C08J2339/00B01J35/615C07C255/41Y02P20/54
Inventor 梁学正施映霞程欲晓顾中怡马伟鑫纪邵川
Owner SHAOXING UNIVERSITY
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