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Method for producing verelite microsphere for surface decoration of conductive polyaniline nano-wire

A technology of polystyrene microspheres and conductive polyaniline, which is applied in the field of preparing polystyrene microspheres modified by conductive polymer nanowires, can solve the problems that the microspheres have not been reported yet, and the polyaniline coating layer is irregular. To achieve the effects of short cycle time, high production efficiency and mild synthesis conditions

Inactive Publication Date: 2008-05-07
XIAMEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the polyaniline coating layer prepared by traditional methods presents an irregular surface, and microspheres with a nanowire coating layer structure have not yet been reported.

Method used

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  • Method for producing verelite microsphere for surface decoration of conductive polyaniline nano-wire

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Take 10ml of 1mol / L hydrochloric acid aqueous solution and add it to a three-necked flask equipped with a magnetic stirring bar, add 0.025g of dodecyltrimethylammonium bromide under stirring conditions, and stir until transparent to obtain 2.5g / L dodecyltrimethylammonium bromide Alkyltrimethylammonium bromide solution. Add 0.5 g of polystyrene (PS) microspheres into the solution, and stir for 20 min. Dissolve 0.05 g of aniline monomer in 2.5 ml of n-hexane to obtain a 20 g / L aniline monomer solution. Then, the aniline monomer solution was added into the PS microsphere-dodecyltrimethylammonium bromide mixed solution under stirring. Add nitrogen gas and stir for 20 minutes, and the system appears a relatively uniform milky white color. Add 0.114 g of ammonium persulfate to 10 ml of 1 mol / L hydrochloric acid aqueous solution, and stir to dissolve. Then the ammonium persulfate solution was added dropwise into the above-mentioned emulsion containing PS microspheres with a...

Embodiment 2

[0027] The reaction steps are as in Example 1, the amount of dodecyltrimethylammonium bromide is changed to 0.02g, so that the concentration becomes 2g / L, and the product surface modified conductive polymer nanowire functionalized polystyrene microspheres can be obtained .

Embodiment 3

[0029] The reaction steps are as in Example 1, and the amount of dodecyltrimethylammonium bromide is changed to 0.05g, so that the concentration becomes 5g / L, and the product surface-modified conductive polymer nanowire functionalized polystyrene microspheres can be obtained .

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Abstract

The invention discloses a method for preparing polystyrene microspheres whose surface is modified with conductive polyaniline nanowires, and relates to a method for preparing polymer nanocomposite materials. Provided is a method for preparing polystyrene microspheres with surface-modified conductive polyaniline nanowires. 1) preparing an acidic aqueous solution of 2 to 5 g / L cationic surfactant; 2) mixing polystyrene microspheres with the acidic aqueous solution containing cationic surfactant; 3) adding an organic solution of aniline monomer to the mixed solution, Stir, the volume ratio of the aniline monomer organic solution to the acidic aqueous solution containing the cationic surfactant is 1:4; 4) get an oxidant that is equimolar to the aniline monomer and add it to the 1mol / L acidic aqueous solution of the same volume as step 1, After stirring and dissolving, add it to the mixture in step 3 under stirring, continue to react after adding, filter with suction, rinse repeatedly with water and absolute ethanol in turn until the filtrate is colorless and the pH value is neutral, and dry the obtained product until constant weight.

Description

technical field [0001] The invention relates to a method for preparing polymer nanocomposite materials, in particular to a method for preparing polystyrene microspheres modified by conductive polymer nanowires. Background technique [0002] Since the discovery of conductive polymers, due to their electrical activity that conventional polymers lack, they have great development potential in the fields of lightweight batteries, electromagnetic shielding materials, anti-corrosion coatings, and sensors. (MacDiarmid A.G.SyntheticMet., 1997, 84(1-3): 27-34.) Conductive polymers, especially polyaniline, have poor processability due to their own molecular structure rigidity and strong interaction between molecular chains. Insoluble and infusible, which limits the application of conductive polymers to a certain extent. Combining polyaniline with other materials to prepare composite materials is one of the important methods to solve this defect. [0003] The traditional method is to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J7/16C08L25/06C08L79/02
Inventor 戴李宗陈江枫许一婷邓远名郑毅芳雷光财马莹莹
Owner XIAMEN UNIV
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