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Preparation method of photosensitive conductive polyaniline nanoparticles

A conductive polyaniline and nanoparticle technology, which is applied in the field of preparation of photosensitive conductive polyaniline nanoparticles, can solve the problems of being unsuitable for mass production, demanding conditions, and high cost, and achieve improved processing performance and environmental friendliness , expand application, good film-forming performance

Inactive Publication Date: 2012-06-13
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the preparation of block copolymers is cumbersome, requires a special catalyst, the required conditions are relatively harsh, and the cost is high, so it is not suitable for mass production.

Method used

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  • Preparation method of photosensitive conductive polyaniline nanoparticles

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Effect test

Embodiment 1

[0016] Weigh 2.45g of 2-acrylamide-2-methylpropanesulfonic acid, 0.62g of ethyl coumarin, 0.072g of initiator azobisisobutyronitrile in 25mL of dioxane, fill with nitrogen for 30 minutes, 65°C The reaction was carried out for 24 hours, cooled to room temperature, the excess solvent was evaporated, and the pure copolymer was obtained by precipitation in dichloroethane. The copolymer was dissolved in an aqueous solution, cooled to 0° C., a hydrochloric acid solution of aniline (0.5 g) was added, and an aqueous solution containing 1.3 g of ammonium persulfate was added in one batch, and stirred for 8 hours. The obtained dark green polyaniline dispersion liquid was subjected to centrifugation (10000 rpm) to separate and purify to obtain photosensitive conductive polyaniline nanoparticles.

Embodiment 2

[0018] Weigh 1.72g of acrylic acid, 0.85g of 2-cinnamic acid acyloxyethyl-(meth)acrylate, 0.065g of initiator azobisisobutyronitrile in 25mL of dioxane, fill with nitrogen for 30 minutes, at 65°C React for 24 hours, cool to room temperature, evaporate excess solvent, and precipitate in dichloroethane to obtain pure copolymer. The copolymer was dissolved in an aqueous solution, cooled to 0° C., a hydrochloric acid solution of aniline (0.78 g) was added, and an aqueous solution containing 1.9 g of ammonium persulfate was added in one batch, and stirred for 8 hours. The obtained dark green polyaniline dispersion was subjected to centrifugation (8000 rpm) for separation and purification to obtain photosensitive conductive polyaniline nanoparticles.

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Abstract

The present invention provides a preparation method of photosensitive conductive polyaniline nanoparticles, which belongs to the field of functional polymer materials. The method for preparing the photosensitive polyaniline nanoparticles comprises the following steps: taking UV irradiation photo-crosslinked amphiphilic polymers micelle as polymerization template and a stabilizer, adding an initiator to polymerize an aniline monomer to obtain a solution containing the photosensitive polyaniline nanoparticles, centrifuging the solution and separating to obtain the photosensitive conductive polyaniline nanoparticles. The polyaniline enables stable dispersion in water; the obtained nano-particle dispersion has good film-forming property. The method of the present invention is simple, the yield is high, and the method is a green preparation method of photosensitive conductive polyaniline nanoparticles in an aqueous system. The size of the polyaniline particles is uniform, and the method of the invention has broad application prospect on optoelectronic devices, light-curing conductive coatings, conductive inks, sensors, nano-particle ink-jet printing, electronic shielding and stealth technology.

Description

Technical field: [0001] The invention belongs to the technical field of preparation of conductive polymer nanomaterials, and more specifically relates to a preparation method of photosensitive conductive polyaniline nanoparticles. Background technique: [0002] Polyaniline has the advantages of excellent electrical activity, cheap raw materials, easy synthesis, and simple operation, and has become one of the most promising conductive polymers for wide commercial applications. However, the highly aromatic structure of polyaniline makes it highly chemically stable. and thermal stability, leading to obstacles in solution processing or melt processing. The introduction of nanotechnology into polyaniline materials is not only expected to solve the problem of processing and molding, thereby promoting the industrialization of conductive polymers, but also to make it collect electrical conductivity and nano Effect in one body, it has a very wide application prospect in the fields of...

Claims

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Application Information

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IPC IPC(8): C08G73/02C08F220/58C08F220/06C08F220/40C08J3/24
Inventor 罗静周群姜思思吴海强刘晓亚
Owner JIANGNAN UNIV
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