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Method of synthesizing poly-pyrrole nano partical by diphenylamine sulfonic acid copolymerization method

A technology of polypyrrole nanometer and diphenylamine sulfonic acid, which is applied in the field of in-situ preparation of polypyrrole nanoparticle synthesis, can solve the problems of cumbersome preparation and removal process, damage to physical and mechanical properties, and influence on product purity, so as to overcome molding processing problems, The effect of simplifying the synthesis process and the simple preparation method

Inactive Publication Date: 2010-02-17
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although it can solve the problem of agglomeration of nanoparticles very well, its defects also come from these emulsifiers or stabilizers, that is, both the preparation before the reaction and the removal process after the reaction are very cumbersome, and often because of difficulty The removal directly affects the purity of the product and damages its physical and mechanical properties

Method used

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  • Method of synthesizing poly-pyrrole nano partical by diphenylamine sulfonic acid copolymerization method
  • Method of synthesizing poly-pyrrole nano partical by diphenylamine sulfonic acid copolymerization method
  • Method of synthesizing poly-pyrrole nano partical by diphenylamine sulfonic acid copolymerization method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Weigh 2.1702g of sodium diphenylamine sulfonate and add it to a 250mL glass bottle, then add 75mL of hydrochloric acid solution with a concentration of 1.0mol / L, stir to form a diphenylamine sulfonic acid solution after the reaction is complete, then measure 0.145mL of pyrrole monomer and add Add it to the diphenylamine sulfonic acid solution, stir evenly, seal the glass bottle and place it in a 10°C reaction water bath, and keep the temperature constant for more than half an hour under vigorous stirring. 0.8111g ferric chloride (FeCl 3 ) into an 80mL glass bottle, then add 25mL of hydrochloric acid solution with a concentration of 1.0mol / L, and stir to fully dissolve it; ferric chloride (FeCl 3 ) solution into a separatory funnel, and drop into the monomer solution at a rate of 1 drop / 3 seconds to initiate polymerization. After the oxidant was added dropwise, the reaction was continued for 24 hours to complete the reaction. After the reaction was completed, a dark gr...

Embodiment 2

[0025] Weigh 1.3563g of sodium diphenylamine sulfonate into a 250mL glass bottle, then add 75mL of hydrochloric acid solution with a concentration of 0.1mol / L, stir and react to form a diphenylamine sulfonic acid solution, then measure 0.3617mL of pyrrole monomer and add Add it to the diphenylamine sulfonic acid solution, stir evenly, seal the glass bottle and place it in a 10°C reaction water bath, and keep the temperature constant for more than half an hour under vigorous stirring. 0.8111g ferric chloride (FeCl 3 ) into an 80mL glass bottle, then add 25mL of hydrochloric acid solution with a concentration of 0.1mol / L, stir to fully dissolve it, transfer the ferric chloride solution into a separatory funnel, and drop into the monomer at a rate of 1 drop / 3 seconds In solution, polymerization is initiated. After the ferric chloride solution was added dropwise, the reaction was continued for 24 hours to make it react completely. After the reaction is completed, a dark green poly...

Embodiment 3

[0027] Weigh 2.1702g of sodium diphenylamine sulfonate and add it to a 250mL glass bottle, then add 75mL of hydrochloric acid solution with a concentration of 0.1mol / L, stir to form a diphenylamine sulfonic acid solution after the reaction is complete, then measure 0.145mL of pyrrole monomer and add Add it to the diphenylamine sulfonic acid solution, stir evenly, seal the glass bottle and place it in a 10°C reaction water bath, and keep the temperature constant for more than half an hour under vigorous stirring. Add 1.1410g of ammonium persulfate into an 80mL glass bottle, then add 25mL of hydrochloric acid solution with a concentration of 0.1mol / L, stir to dissolve it fully, transfer the ammonium persulfate solution into a separatory funnel, and pour the ammonium persulfate solution at a speed of 1 drop / 3 seconds Drop into the monomer solution to initiate polymerization. After the ammonium persulfate solution was added dropwise, the reaction was continued for 24 hours to comp...

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Abstract

The invention discloses a method for synthesizing polypyrrole nano-particles with diphenylamine sulfoacid, its characters are as follow: it prepares the monomer solution with the pyrrole and diphenylamine sodium in the acidic solution in accordance with a molar ratio of 10:90 ~ 90:10, and then it adds the oxidant solution to the monomer solution for reaction. In which, the molar ratio of the pyrrole and diphenylamine sodium with the oxidizer are 1: 0.1 ~ 1.

Description

technical field [0001] The invention belongs to a synthesis method for in-situ preparation of polypyrrole nanoparticles without external additives. Background technique [0002] Polypyrrole nanoparticles have the advantages of high electrical conductivity, reversible electrical conductivity, good environmental stability, excellent biocompatibility, and high catalytic activity (Wang L X, Li X G, Yang Y L. Preparation, properties and applications of polypyrroles[J]. Reactive & Functional Polymers, 2001, 47: 125-139.), and the raw materials are cheap, the synthesis process is simple and easy, and it has broad practical applications in the fields of secondary batteries, sensors, antistatic materials, electromagnetic shielding, rhetorical electrodes, and biological tissue engineering. Application prospect. The synthesis of pyrrole homopolymer nanoparticles usually adopts microemulsion polymerization method (Mo Z L, Zuo D D, Chen H, etc.Synthesis of graphite nanoparticles / AgCl / po...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G73/06
Inventor 李新贵韦霏黄美荣谢允斌
Owner TONGJI UNIV
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