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Polyaniline nanometer strip compound and preparation method thereof

A technology of polyaniline and composites, applied in the field of materials, can solve the problems that polyaniline has not been reported, and achieve the effects of saving materials and energy, simplifying the preparation process, and high purity

Inactive Publication Date: 2013-04-24
NORTHEAST NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, except for polyaniline-modified oxides, or reports on photosensitive molecular grafting, there has been no report on polyaniline itself having UV-sensitive properties.

Method used

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  • Polyaniline nanometer strip compound and preparation method thereof
  • Polyaniline nanometer strip compound and preparation method thereof
  • Polyaniline nanometer strip compound and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Synthesis of polyacid-doped polyaniline / silver nanoribbon composites:

[0022] Do this in an 80ml glass container. Use a pipette to remove 0.1 ml of aniline liquid, 0.040-0.10 g of silver nitrate and 0.3-0.4 g of H 4 SiW 12 o 40 The acid was dissolved in 40 ml of deionized water and stirred well. Then add 0.3-0.4 grams of ferric nitrate into the above solution, stir quickly and evenly, and then put it into the freezer of the refrigerator at -10°C-18°C for polymerization. After the product turns from light yellow to dark green, thaw the product, filter the resulting dark green product, wash with distilled water and absolute ethanol multiple times to remove impurity ions and oligomers, and vacuum dry it in a vacuum oven at 50°C for 24 hours. use.

[0023] To the characterization of embodiment 1 complex:

[0024] (1) Scanning electron microscope to characterize the product form

[0025] It was observed with a Hitachi XL-30ESEM FEG scanning electron microscope with a...

Embodiment 2

[0039] Synthesis of polyacid-doped polyaniline / silver nanoribbon composites:

[0040] Do this in an 80ml glass container. Use a pipette to remove 0.1 ml of aniline liquid, 0.04 g of silver nitrate and 0.4 g of H 4 SiW 12 o 40 The acid was dissolved in 40 ml of deionized water and stirred well. Subsequently, 0.4 g of ferric nitrate was added to the above solution, stirred quickly and evenly, and then put into the freezer of the refrigerator at -10°C for polymerization. After the product turns from light yellow to dark green, thaw the product, filter the resulting dark green product, wash with distilled water and absolute ethanol multiple times to remove impurity ions and oligomers, and vacuum dry it in a vacuum oven at 50°C for 24 hours. use.

[0041] Characterization: Same as Example 1.

Embodiment 3

[0043] Synthesis of polyacid-doped polyaniline / silver nanoribbon composites:

[0044] Do this in an 80ml glass container. Use a pipette to remove 0.1 ml of aniline liquid, 0.06 g of silver nitrate and 0.4 g of H 4 SiW 12 o 40 The acid was dissolved in 40 ml of deionized water and stirred well. Subsequently, 0.3 g of ferric nitrate was added to the above solution, stirred quickly and evenly, and then put into the freezer of the refrigerator at -18°C for polymerization. After the product turns from light yellow to dark green, thaw the product, filter the resulting dark green product, wash with distilled water and absolute ethanol multiple times to remove impurity ions and oligomers, and vacuum dry it in a vacuum oven at 50°C for 24 hours. use.

[0045] Characterization: Same as Example 1.

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Abstract

The invention relates to a nanometer strip conductive polyaniline compound and a preparation method thereof. In the method, ice crystal is employed as the template, and H4SiW12O40 with a Keggin structure is adopted as a doping acid for adjusting the product form. The mild oxidizing agent ferric nitrate is employed to control the polymerization rate of aniline, and silver nitrate is introduced, isreduced to the metal silver through the anti-induction action of aniline polymerization and can be compounded into a polyaniline product. The method simplifies the complex process of template preparation and removal, saves material and energy, and can produce products with single form and high purity. The polyacid doped polyaniline / silver nanoparticle compound of the invention synchronously introduces polyoxometallate (H4SiW12O40) and silver metallic nanoparticles. Under the synergism of silver nanoparticles and polyacid, the compound of the invention shows good response sensitivity to ultraviolet lights with a wavelength of 365nm, so that the compound is able to be used in devices like light sensors, electric switches and the like.

Description

technical field [0001] The invention belongs to the field of materials, and relates to nano-metal and conductive polymer / inorganic nano-composite materials and a preparation method thereof. Background technique [0002] In recent years, the conversion of ultraviolet light into electrical energy has provided great potential application value in lasers, photodetectors, field effect transistors, photodiodes, photoelectric switches and other fields. Extensive research has been conducted to utilize this convenient, clean, and environmentally friendly source of UV light. However, the currently reported UV photosensitive materials are mainly concentrated on semiconductor oxides (such as zinc oxide, titanium dioxide, tin dioxide, manganese dioxide) or some organic materials that modify metal oxides with some polymers with high UV absorption. / Inorganic composite materials. However, on the other hand, reducing the cost of materials is not only the driving force and requirement for...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G73/02C08K3/08C08L79/02
Inventor 龚剑马惠彦
Owner NORTHEAST NORMAL UNIVERSITY
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