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Water-soluble high temperature-resistant polyaniline conducting material and its preparation method

A technology of polyaniline and conductive materials, applied in the direction of non-metallic conductors, organic material conductors, etc., can solve the problems of not having high temperature resistance, and achieve the effects of reducing the amount of enzymes, reducing costs, and good thermal stability

Inactive Publication Date: 2006-02-08
NORTHWEST NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The polyaniline in the above patents is prepared by chemical methods, and generally only has two characteristics of water solubility and conductivity, but not high temperature resistance.

Method used

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  • Water-soluble high temperature-resistant polyaniline conducting material and its preparation method
  • Water-soluble high temperature-resistant polyaniline conducting material and its preparation method

Examples

Experimental program
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Effect test

Embodiment 1

[0023] Weigh 0.108 g of p-phenylenediamine, fully dissolve it in 8 ml of deionized water, add 0.071 g of acrylic acid, stir and mix evenly; completely dissolve 2 mg of horseradish peroxidase in disodium hydrogen phosphate and dihydrogen phosphate at pH=7 Sodium mixed buffer solution, and then added to the above-mentioned mixed solution; after fully mixed uniformly, drop into the weight ratio of 0.3% H 2 O 2 The solution, 0.4 mg each time, add 1 time every 20 minutes for a total of 6 times; after the hydrogen peroxide is added, continue to react for 20 hours, under nitrogen protection; then, the product and the reaction solution are added to the acetone solution for precipitation, A black powdery substance is obtained; washed with acetone several times to remove unreacted monomers and part of low molecular weight polymers; vacuum dried at 48°C for 52 hours to obtain the product of the present invention.

Embodiment 2

[0025] Weigh 0.108 g of p-phenylenediamine, fully dissolve it in 8 ml of deionized water, add 0.036 g of acrylic acid, stir and mix evenly; completely dissolve 120 mg of horseradish peroxidase in disodium hydrogen phosphate and dihydrogen phosphate at pH=7 Sodium mixed buffer solution, and then added to the above-mentioned mixed solution; after fully mixed uniformly, drop into 0.03% H by weight 2 O 2 Solution, 2 mg each time, add 1 time every 35 minutes for a total of 4 times; after the hydrogen peroxide is added, continue to react for 30 hours, under nitrogen protection; then, the product and the reaction solution are added to the acetone solution for precipitation, The black powdery substance is obtained, and then washed with acetone for many times to remove unreacted monomers and part of low molecular weight polymers; vacuum drying at 80°C for 45 hours to obtain the product of the present invention.

Embodiment 3

[0027] Weigh 0.108 g of p-phenylenediamine, fully dissolve it in 8 ml of deionized water, add 0.018 g of acrylic acid, stir and mix well. 60 mg of horseradish peroxidase was completely dissolved in a buffer solution of pH=7 mixed of disodium hydrogen phosphate and sodium dihydrogen phosphate, and then added to the above-mentioned mixed solution. After mixing well, add 0.15% H by weight 2 O 2 Solution, 1 mg each time, add 1 time every 30 minutes for a total of 5 times. After the hydrogen peroxide was added, the reaction was continued for 25 hours, and it was filled with nitrogen for protection. Then, the product and the reaction liquid are added to the acetone solution for precipitation to obtain a black powdery substance, which is then washed with acetone several times to remove unreacted monomers and some low molecular weight polymers. Vacuum drying at 60°C for 50 hours to obtain the product of the present invention.

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Abstract

The invention relates to water-soluble poly amino benzenes high temperature resisting conductive material and method for preparation, wherein the material is prepared from p-phenylene diamine 54-216 parts, monomer propenoic acid 35-71 parts, horseradish peroxidase 0.05-3 parts as raw material, p-phenylene diamine and propenoic acid as monomers, deionized water as solvent, horse radish peroxidase HRP as catalyst, H2O2 as oxidation agent through copolymerization, acetone deposition and vacuum drying 48 hours at 50 deg C.

Description

Technical field [0001] The invention relates to a water-soluble polyaniline material and a preparation method thereof, in particular to a water-soluble polyaniline high-temperature resistant conductive material and a preparation method thereof. Background technique [0002] In the mid-to-late 1970s, Shirakawa et al. discovered that polyacetylene membranes can increase their conductivity by 11 orders of magnitude through I2 vapor doping. This discovery quickly promoted the development of conductive polymers based on conjugated polymers. Polyaniline was re-developed and utilized as a conductive polymer by Mac Diarmid in 1984. Compared with other conjugated polymers, its synthetic raw materials are easy to obtain, the method is simple, it has higher electrical conductivity and processability, and at the same time has good environmental stability, making it a hot spot in the current conductive polymer research. One of the three most concerned and most valuable conductive polymer vari...

Claims

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Application Information

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IPC IPC(8): C08G73/02H01B1/12
Inventor 王云普曾家豫张继张东霞李玉峰
Owner NORTHWEST NORMAL UNIVERSITY
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