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Functionalized nano-grade porous polymer material multicomponent reaction preparation method

A polymer material and multi-component reaction technology, applied in the fields of physical chemistry and material chemistry, can solve problems such as complex synthesis process, high cost, and difficult functionalization, and achieve uniform pore size distribution, high-efficiency preparation, and low-cost effects

Inactive Publication Date: 2016-01-13
SHAOXING UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The present invention overcomes the problems of complex synthetic process, high cost and difficult functionalization of traditional porous polymer materials, and provides a new method for preparing functionalized nanoporous polymer materials by combining multi-component technology and solvothermal technology, realizing Simple, low-cost, and efficient preparation of novel nanoporous functionalized polymer materials

Method used

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  • Functionalized nano-grade porous polymer material multicomponent reaction preparation method
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  • Functionalized nano-grade porous polymer material multicomponent reaction preparation method

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preparation example Construction

[0016] The invention provides a multi-component reaction preparation method for a functionalized nanoporous polymer material, which includes the following steps. a. Using multi-component synthesis technology to prepare aldehyde reactants containing double bonds: in a 100mL round bottom flask, add stirring magnets, 10mmol of p-hydroxybenzaldehyde, 50mL of N,N-dimethylformamide, allyl Bromine 15mmol and K 2 CO 3 20mmol, after 10 hours at room temperature, the reaction was detected by thin-layer chromatography TLC, and 20mL of water and 200mL of ethyl acetate were added to the reaction mixture, and the organic phase was taken after layering, and the aqueous phase was extracted with ethyl acetate. Washed with saturated NaCl aqueous solution, anhydrous NaCl 2 SO 4 Dry, concentrate under reduced pressure, and separate by column chromatography to obtain the product 4-allyloxybenzaldehyde. The product obtained in step a was 8.5 mmol, and the yield was 85%. The reaction synthesis ...

Embodiment 1

[0025] Take 0.02 g of azobisisobutyronitrile, 2.0 g of divinylbenzene, and 1.5 g of functional monomers, then add 15 g of tetrahydrofuran solvent, stir at room temperature for 3 hours, put in a kettle, and heat-treat with solvent at 100 ° C for 24 hours. The pressure in the reactor is about 2MPa, open the cover, and evaporate the residual solvent at room temperature to obtain a functionalized nanoporous polymer material. The specific surface area of ​​the material is about 400m 2 / g, the pore size is 4nm.

Embodiment 2

[0027] Take 0.1 g of azobisisobutyronitrile, 2.0 g of divinylbenzene, and 2.0 g of functional monomers, then add 20 g of ethyl acetate solvent, stir at room temperature for 3 hours, put it in a kettle, and heat it at 60°C for 48 hours. Inflate with nitrogen, keep the pressure at about 5.0MPa, open the cover, evaporate at room temperature to remove the residual solvent, and then obtain the functionalized nanoporous polymer material.

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Abstract

The invention provides a functionalized nano-grade porous polymer material multicomponent reaction preparation method comprising the following steps: a, an aldehyde reactant comprising double bond is prepared through multicomponent synthesis; b, a Ugi four-component reaction is realized with 4-allyloxylbenzaldehyde prepared in the step a, such that a functional monomer is obtained; and c, divinyl benzene is adopted as a crosslinking monomer; an initiator is added; and divinyl benzene is subjected to a copolymerization reaction with a proper amount of the Ugi reaction product with a solvothermal method, such that the functionalized nano-grade porous polymer material is obtained. A mass ratio of divinyl benzene to the functional monomer is 1.0-4.0. A mass ratio of the initiator to divinyl benzene is 0.01-0.05. A mass ratio of the solvent to divinyl benzene is 4.0-10.0. The polymerization temperature is within a range of 60-200 DEG C. The pressure is controlled at 0.5-5.0MPa. The reaction time is 24-48h. After the reaction, residual solvent is removed through room-temperature volatilization or reduced-pressure distillation.

Description

[0001] The application date is February 10, 2014, the application number is 201410046105.0, and the title of the invention is a multi-component reaction preparation method for functionalized nanoporous polymer materials. technical field [0002] The invention belongs to the technical fields of physical chemistry and material chemistry, and in particular relates to a multi-component reaction preparation method of a functionalized nanoporous polymer material. Background technique [0003] Nanoporous polymer materials are one of the emerging functional materials in the field of nanomaterials science in recent years. It has the characteristics of low synthesis cost, convenient functionalization, large specific surface area, and rich pore structure. The above advantages make it show important potential application value in the fields of catalysis, bioengineering, sensor and selective adsorption and separation of gases. [0004] Common porous polymer materials are mainly macroporo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F212/36C08F216/12C08J9/28C07C47/575C07C45/64C07C237/22C07C231/06
Inventor 孔维萍
Owner SHAOXING UNIVERSITY
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