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Preparation method of polyaniline hollow microspheres with rare earth cerium ions loaded on surfaces

A technology of surface loading and polyaniline, applied in the direction of microsphere preparation, microcapsule preparation, polyamide coating, etc., can solve the problems of polyaniline hollow microspheres with large particle size, poor anti-corrosion effect, poor electrical conductivity, etc., and achieve anti-corrosion Good effect, easy control, and simple method

Inactive Publication Date: 2015-05-20
CENT SOUTH UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Aiming at the disadvantages of the polyaniline hollow microspheres prepared in the prior art, such as being unfriendly to the environment and low in efficiency, and the obtained polyaniline hollow microspheres have larger particle size, poor electrical conductivity, and poor anticorrosion effect, this paper The purpose of the invention is to provide a method of polyaniline hollow microspheres loaded with rare earth cerium ions on the surface, which has the characteristics of regular structure, regular shape, large specific surface area and high conductivity, which is used for steel and alloy anticorrosion. The method is simple and convenient. , efficient, easy to control, suitable for industrial production

Method used

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  • Preparation method of polyaniline hollow microspheres with rare earth cerium ions loaded on surfaces
  • Preparation method of polyaniline hollow microspheres with rare earth cerium ions loaded on surfaces
  • Preparation method of polyaniline hollow microspheres with rare earth cerium ions loaded on surfaces

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Embodiment 1

[0023] Take 6.32g of absolute ethanol, 72.00g of water, and 2.08g of an aqueous solution containing poly(2-acrylamido-2-methylpropanesulfonic acid) (referred to as PAMPS, with a mass fraction of 20%) into a 250mL beaker, and stir well . Subsequently, 1.86 g of aniline was added to the above mixture, and after ultrasonication for 10 minutes, the temperature of the above mixture containing aniline was raised to 80° C., and magnetically stirred at this temperature for 10 minutes. Quickly add 40mL aqueous solution containing 4.56g of ammonium persulfate at 80°C to the above mixed solution containing aniline, and react at a constant temperature of 80°C for 60s under stirring conditions. Subsequently, the reaction system was placed in an ice-water bath at a temperature of 0-5° C. to continue the reaction for 12 h. The polyaniline hollow microspheres are obtained by using acetone to break the emulsion, washing with water and suction filtering. The obtained polyaniline hollow micros...

Embodiment 2

[0036] Take 6.32g of absolute ethanol, 72.00g of water, and 2.08g of an aqueous solution containing poly(2-acrylamido-2-methylpropanesulfonic acid) (referred to as PAMPS, with a mass fraction of 40%) into a 250mL beaker, and stir well . Subsequently, 1.86 g of aniline was added to the above mixture, and after ultrasonication for 10 minutes, the temperature of the above mixture containing aniline was raised to 65° C., and magnetically stirred at this temperature for 10 minutes. Add 40mL of aqueous solution containing 4.56g of ammonium persulfate at a temperature of 65°C to the above mixed solution containing aniline quickly, and react at a constant temperature of 65°C for 80s under stirring conditions. Subsequently, the reaction system was placed in an ice-water bath at a temperature of 0-5° C. to continue the reaction for 6 h. The polyaniline hollow microspheres are obtained by using acetone to break the emulsion, washing with water and suction filtering. The obtained polyan...

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Abstract

The invention discloses a preparation method of polyaniline hollow microspheres with rare earth cerium ions loaded on the surfaces. The method is prepared by rapidly adding an ammonium persulfate solution in a mixed solution consisting of poly (2-acrylamide-2-methylpro panesulfonic acid), aniline, ethanol and water to react, so that after the reaction is completed, polyaniline hollow microspheres are obtained; and putting the obtained polyaniline hollow microspheres in a cerous nitrate (III) solution, and carrying out stirring and doping, so that polyaniline hollow microspheres with rare earth cerium ions loaded on the surfaces are obtained. The prepared polyaniline hollow microspheres with rare earth cerium ions loaded on the surfaces are neat in structure, regular in morphology, large in specific surface area, and high in electric conductivity, and the preparation method is simple, efficient, and easy to control, therefore, the method is suitable for industrialized production.

Description

technical field [0001] The invention relates to a preparation method of polyaniline hollow microspheres loaded with rare earth cerium ions on the surface, and belongs to the field of functional polymer composite materials. Background technique [0002] Polyaniline is an important conductive polymer. The characteristics of easy synthesis, good environmental stability, and high conductivity make it show great application potential in the fields of semiconductor materials, batteries, supercapacitors, electromagnetic shielding materials, and anti-corrosion coatings. At present, polyaniline in various forms (such as polyaniline nanofibers, polyaniline microspheres, polyaniline nanotubes, etc.) has been developed. Among these different forms of polyaniline, hollow polyaniline microspheres have shown considerable application potential in the fields of biomedical devices, drug release, coating additives, and phase separation due to their unique structures. The existing methods for...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J7/14C08J9/26C08L79/02C08G73/02B01J13/02C09D7/12C09D5/08C09D177/00C09D163/00
Inventor 李芝华李彦博
Owner CENT SOUTH UNIV
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