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Method for preparing copolymer/HKUST-1 composite material by emulsion polymerization method

A HKUST-1, emulsion polymerization technology, applied in separation methods, chemical instruments and methods, dispersed particle separation, etc., can solve the problems of reducing the performance of polymer/MOFs composites, uneven particle dispersion, poor compatibility, etc. , to achieve the effects of good emulsion stability, improved compatibility, and enhanced synergistic effect

Active Publication Date: 2021-05-04
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the great difference in physical and chemical properties between organic materials and inorganic materials, there is a large free energy between the phase interfaces of the two, which makes the particle dispersion uneven and shows poor compatibility, which greatly reduces the stability of polymer / MOFs. Properties of Composite Materials

Method used

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  • Method for preparing copolymer/HKUST-1 composite material by emulsion polymerization method
  • Method for preparing copolymer/HKUST-1 composite material by emulsion polymerization method
  • Method for preparing copolymer/HKUST-1 composite material by emulsion polymerization method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Weigh 0.28g of copper nitrate, 0.14g of copper methacrylate, and 0.42g of trimesic acid, place them in a beaker, add 15mL of deionized water, and transfer them to a three-necked flask with mechanical stirring after being fully dissolved by ultrasonic waves , placed in a water bath. An additional 0.12 g of sodium lauryl sulfate was then added. In addition, weigh 0.8g of butyl acrylate, 0.2g of styrene, 0.6g of methyl methacrylate, and 0.06g of methacrylic acid into a beaker, transfer them to a three-necked flask after mixing, and raise the temperature of the water bath to 40 -50°C, pre-emulsify at this temperature for 30-60min. Then raise the temperature to 75-85°C, and add fully dissolved potassium persulfate aqueous solution (0.12g dissolved in 5mL deionized water), react for 6-8h, and obtain a light blue emulsion after the reaction is completed. After the reaction stopped, part of the emulsion was taken out, centrifuged, and the supernatant was removed. The resulti...

Embodiment 2

[0030] Weigh 0.14g of copper nitrate, 0.07g of copper methacrylate, and 0.21g of trimesic acid, place them in a beaker, add 15mL of deionized water, and transfer them to a three-necked flask with mechanical stirring after being fully dissolved by ultrasound. , placed in a water bath. An additional 0.12 g of sodium lauryl sulfate was then added. In addition, weigh 0.8g of butyl acrylate, 0.2g of styrene, 0.6g of methyl methacrylate, and 0.06g of methacrylic acid into a beaker, transfer them to a three-necked flask after mixing, and raise the temperature of the water bath to 40 -50°C, pre-emulsify at this temperature for 30-60min. Then the temperature was raised to 75-85° C., and a fully dissolved potassium persulfate aqueous solution (0.12 g dissolved in 5 mL deionized water) was added to react for 6-8 hours, and a light blue emulsion was obtained after the reaction was completed. After the reaction stopped, part of the emulsion was taken out, centrifuged, and the supernatant...

Embodiment 3

[0033] Weigh 0.14g of copper nitrate, 0.07g of copper methacrylate, and 0.21g of trimesic acid, place them in a beaker, add 15mL of deionized water, and transfer them to a three-necked flask with mechanical stirring after being fully dissolved by ultrasound. , placed in a water bath. An additional 0.12 g of sodium lauryl sulfate was then added. In addition, weigh 1.6g of butyl acrylate, 0.4g of styrene, 1.2g of methyl methacrylate, and 0.12g of methacrylic acid into a beaker, transfer them to a three-necked flask after mixing, and heat the water bath to 40 -50°C, pre-emulsify at this temperature for 30-60min. Then raise the temperature to 75-85°C, and add fully dissolved potassium persulfate aqueous solution (0.12g dissolved in 5mL deionized water), react for 6-8h, and obtain a light blue emulsion after the reaction is completed. After the reaction stopped, part of the emulsion was taken out, centrifuged, and the supernatant was removed. The resulting solid was washed five ...

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Abstract

The invention discloses a method for preparing a copolymer / HKUST-1 composite material through an emulsion polymerization method, and belongs to the technical field of organic-inorganic porous composite materials. The preparation method specifically comprises the following steps: by taking various olefin substance monomers as an oil phase, methacrylate, metal salt and an organic ligand as a water phase, lauryl sodium sulfate as an emulsifier and potassium persulfate as an initiator, carrying out emulsion polymerization under mechanical stirring to obtain a copolymer / Cu-BTC composite material in situ; and enabling Cu-BTC to spontaneously generate structural recombination in a short time to become three-dimensional HKUST-1, so that the copolymer / HKUST-1 composite material is obtained. The copolymer / MOFs composite material obtained by the method not only has good water stability, but also enables MOFs to be well dispersed in the copolymer, solves the problem of non-uniform dispersion of MOFs particles, and has certain ammonia gas adsorption performance.

Description

technical field [0001] The present invention prepares the copolymer / Cu-BTC composite material method through the in-situ one-pot emulsion polymerization method, and the adsorption of the composite material obtained after copolymerization in harmful gases such as ammonia gas belongs to the category of organic-inorganic porous composite materials. technology field. Background technique [0002] Metal-organic frameworks (Metal-Organic Frameworks, MOFs) are constructed by metal nodes and organic ligands through coordination bonds. They have a crystalline porous structure and can be synthesized under mild conditions. Compared with traditional porous materials, It has higher porosity and larger specific surface area, plus a large number of functional groups in the skeleton, which makes it have special surface properties. HKUST-1 is formed by coordination and self-assembly of copper salt and trimesic acid, and each Cu ion can bind a water molecule in the axial direction, thus show...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G83/00C08F220/18C08F212/08C08F220/14C08F220/06C08F2/26B01D53/02
CPCC08G83/008C08F220/18C08F2/26B01D53/02B01D2257/406Y02A50/20
Inventor 赵敏坚何涛束伦谢林华李建荣
Owner BEIJING UNIV OF TECH
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