Method for synthesizing polyaniline nanotubes

A technology of nanotubes and polyaniline, which is applied in the preparation and application of nanomaterials, and can solve the problems that there are no polyaniline nanotubes.

Inactive Publication Date: 2015-09-09
ANHUI UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In summary, the organic template method or doping method is commonly used to prepare polyaniline nanotubes, but there is no report on the synthesis of polyaniline nanotubes by magnetic field induction.

Method used

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  • Method for synthesizing polyaniline nanotubes
  • Method for synthesizing polyaniline nanotubes
  • Method for synthesizing polyaniline nanotubes

Examples

Experimental program
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Effect test

Embodiment 1

[0020] (1) Add the aniline monomer to the aqueous solution of camphorsulfonic acid with a concentration of 3.5 g / L, stir for 10 minutes until it is uniformly dispersed, and place it under a steady-state static magnetic field (magnetic field strength of 5 Tesla) at 25 degrees Celsius. Put 1 hour; The mol ratio of camphorsulfonic acid and aniline monomer is 1:1;

[0021] (2) Take 10 g / L ammonium persulfate aqueous solution and add it dropwise to the dispersion liquid obtained in the above steps. The reaction temperature is controlled at 25 degrees Celsius. 5 Tesla), continue to stand still for 24 hours; the molar ratio of ammonium persulfate to aniline monomer is 1:1;

[0022] (3) Suction filter the product obtained above, wash with distilled water and absolute ethanol respectively until the filtrate is colorless, place in a vacuum oven at 60°C, and dry in vacuum for 20 hours to obtain polyaniline nanotubes. figure 1 Scanning electron micrograph of the prepared polyaniline nan...

Embodiment 2

[0024] (1) Add the aniline monomer to the aqueous solution of 2 g / L camphorsulfonic acid, stir for 10 minutes until it is uniformly dispersed, and place it under a steady-state static magnetic field (magnetic field strength of 1 Tesla) at 20 degrees Celsius. Put 1 hour; The mol ratio of camphorsulfonic acid and aniline monomer is 4:1;

[0025] (2) Take 5 g / L of ammonium persulfate aqueous solution and add it dropwise to the dispersion liquid obtained in the above steps. The reaction temperature is controlled at 20 degrees Celsius. After the dropwise addition, place the reaction mixture solution in a steady state static magnetic field ( The magnetic field strength is 1 Tesla), and continue to stand still for 24 hours; the molar ratio of ammonium persulfate to aniline monomer is 2:1;

[0026] (3) Suction filter the product obtained above, wash with distilled water and absolute ethanol respectively until the filtrate is colorless, place in a vacuum oven at 60°C, and dry in vacuum...

Embodiment 3

[0028] (1) Add the aniline monomer to the aqueous solution of 2.5 g / L camphorsulfonic acid, stir for 10 minutes until it is uniformly dispersed, and place it under a steady-state static magnetic field (magnetic field strength of 10 Tesla) at 30 degrees Celsius. Put 1 hour; The mol ratio of camphorsulfonic acid and aniline monomer is 2:1;

[0029] (2) Take 20 g / L of ammonium persulfate aqueous solution and add it dropwise to the dispersion liquid obtained in the above steps. The reaction temperature is controlled at 30 degrees Celsius. After the dropwise addition, place the reaction mixture solution in a steady state static magnetic field ( The magnetic field strength is 10 tesla), and the reaction is continued for 24 hours; the molar ratio of ammonium persulfate to aniline monomer is 1:2;

[0030] (3) Suction filter the product obtained above, wash with distilled water and absolute ethanol respectively until the filtrate is colorless, place in a vacuum oven at 60°C, and dry in...

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Abstract

The invention discloses a novel preparation method of polyaniline nanotubes, which comprises the following steps: by using camphorsulfonic acid as a doping acid, uniformly dispersing an aniline monomer in a camphorsulfonic acid water solution, standing to react in a stable magnetostatic field (0.5-10 tesla) for 24 hours by using ammonium persulfate as an initiator, and carrying out in-situ polymerization to obtain the polyaniline nanotube material (disclosed as Figure 1). The average tube length of the novel polyaniline nanotube material is 0.3-0.5 mu m, the external diameter is 120-130nm, and the internal diameter is 50-60nm. The polyaniline nanotube material has high specific capacitance and high electromagnetic wave absorption performance, and can be widely used in the fields of supercapacitors and electromagnetic shielding.

Description

technical field [0001] The invention relates to a method for synthesizing polyaniline nanotubes, in particular to a new method for synthesizing polyaniline nanotubes under a static static magnetic field, and belongs to the field of nanomaterial preparation and application. Background technique [0002] Polyaniline not only has the density of plastic, but also has the conductivity of metal and the processability of plastic. It also has the chemical and electrochemical properties that metal and plastic lack. It can be used as stealth material and anti-corrosion material in the defense industry. It can be used as metal anti-corrosion materials, anti-static materials, electronic chemicals, etc. The broad application prospect and market prospect make it a hot material that countries all over the world are vying to research and develop. The structure of polyaniline determines the specificity of its morphology, and the morphology determines its electrical, magnetic and optical pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G73/02B82Y40/00
Inventor 毕红刘健葛传军
Owner ANHUI UNIVERSITY
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