Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Biocatalysis preparation method of high-conductivity poly(3,4-ethylenedioxythiophene)/lignosulfonic acid dispersion liquid

A technology of ethylenedioxythiophene and ligninsulfonic acid, which is applied in the field of conductive polymers, can solve the problems of difficult PEDOT, hindering the application range, and difficult processing, and achieves the effects of high catalytic efficiency, low price, and strong processability

Inactive Publication Date: 2018-01-23
刘营营
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the patent CN102516784A utilizes lignin sulfonic acid to prepare water-dispersible PEDOT / LS conductive compound, it solves the problem that PEDOT is insoluble and infusible and causes processing difficulties; but the conductivity of this PEDOT / LS dispersion is very low, only 10 -4 About S / cm, it can only be used as a low-end antistatic agent, which seriously hinders its application range

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Biocatalysis preparation method of high-conductivity poly(3,4-ethylenedioxythiophene)/lignosulfonic acid dispersion liquid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Weigh lignosulfonic acid, 3,4-ethylenedioxythiophene, sodium tartrate and sodium oxalate according to the mass ratio of 2.8:1:2:2.5 and add high-purity water to form a mixed solution with a solid content of 2.5%. In a water bath environment at 25°C, stir at 6000rpm for 30min, add acetic acid-sodium acetate buffer solution to adjust the pH of the mixture to 6, then add horseradish peroxidase while stirring, and then slowly add hydrogen peroxide solution dropwise , continue to stir and react for 24 hours to obtain a primary reaction solution; weigh the above primary reaction solution, 3,4-ethylenedioxythiophene, sodium tartrate and sodium oxalate in a mass ratio of 1.5:1:2:2.5 and add high-purity water, Make a mixed solution with a solid content of 2%, place it in a water bath environment at 20°C, stir at 7000rpm for 30min, then add horseradish peroxidase while stirring, then slowly add hydrogen peroxide solution dropwise, and stir at 6000rpm Stir and react for 30 hours, ...

Embodiment 2

[0037] Weigh lignosulfonic acid, 3,4-ethylenedioxythiophene, sodium tartrate and sodium oxalate according to the mass ratio of 2.8:1:2:2.5 and add high-purity water to form a mixed solution with a solid content of 2.5%. In a water bath environment at 25°C, stir at 6000rpm for 30min, add acetic acid-sodium acetate buffer solution to adjust the pH of the mixture to 6, then add horseradish peroxidase while stirring, and then slowly add hydrogen peroxide solution dropwise , continue to stir and react for 24 hours to obtain a primary reaction solution; weigh the above primary reaction solution, 3,4-ethylenedioxythiophene, sodium tartrate and sodium oxalate in a mass ratio of 1.5:1:2:2.5 and add high-purity water, Make a mixed solution with a solid content of 2%, place it in a water bath environment at 20°C, stir at 7000rpm for 30min, then add horseradish peroxidase while stirring, then slowly add hydrogen peroxide solution dropwise, and stir at 6000rpm Stir and react for 30 hours, ...

Embodiment 3

[0042]Weigh lignosulfonic acid, 3,4-ethylenedioxythiophene, sodium tartrate and sodium oxalate according to the mass ratio of 2.8:1:2:2.5 and add high-purity water to form a mixed solution with a solid content of 2.5%. In a water bath environment at 25°C, stir at 6000rpm for 30min, add acetic acid-sodium acetate buffer solution to adjust the pH of the mixture to 6, then add soybean peroxidase while stirring, and then slowly add hydrogen peroxide solution dropwise, Continue to stir and react for 24 hours to obtain a primary reaction solution; weigh the above-mentioned primary reaction solution, 3,4-ethylenedioxythiophene, sodium tartrate and sodium oxalate according to the mass ratio of 1.5:1:2:2.5 and add high-purity water to prepare To form a mixed solution with a solid content of 2%, place it in a water bath environment at 20°C, stir at 7000rpm for 30min, then add soybean peroxidase while stirring, then slowly add hydrogen peroxide solution dropwise, and stir at 6000rpm Reac...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a biocatalysis preparation method of high-conductivity poly(3,4-ethylenedioxythiophene) / lignosulfonic acid dispersion liquid. The biocatalysis preparation method comprises: taking peroxidase as a catalyst, taking hydrogen peroxide as an oxidizing agent, initiating a monomer 3,4-ethylenedioxythiophene to carry out a primary reaction, a secondary reaction and a tertiary reaction, and then purifying by using cation-anion resin, and adding ethanediol, dimethyl sulfate and dimethyl sulfoxide, mixing uniformly, and carrying out homogeneity treatment, cooling to the room temperature to obtain a product; lignosulfonic acid is prepared from processes of activation, grafted condensation, sulfonation, ultrafiltration purification and the like on wheat straw alkaline lignin. According to the preparation method, the wheat straw alkaline lignin is modified and prepared into the lignosulfonic acid with high molecular weight and high sulfonic group content, and high-conductivitypoly(3,4-ethylenedioxythiophene) dispersion liquid is prepared by using bio-enzyme to catalyze polymerization reaction, at the same time, the production cost is reduced, the resources are saved and the environmental pollution caused by the waste liquid of paper making is alleviated; the method has the double beneficial effect of economic and environmental protection.

Description

technical field [0001] The invention relates to a preparation method of poly(3,4-ethylenedioxythiophene). More specifically, the invention relates to a biocatalytic preparation method of a high-conductivity poly(3,4-ethylenedioxythiophene) / lignosulfonic acid dispersion, which belongs to the technical field of conductive polymers. Background technique [0002] The most widely studied conducting polymers are polyaniline derivatives, polythiophene derivatives and polypyrrole derivatives. Among them, polythiophene and its derivatives are compounds with the lowest energy barrier among conductive polymers. Poly(3,4-ethylenedioxythiophene), referred to as PEDOT, is a new type of conductive polymer, which was first developed by scientists from Bayer in Germany in the 1980s. - Obtained after polymerization of ethylenedioxythiophene (abbreviated as EDOT). Among many conductive polymers, PEDOT has attracted extensive attention due to its advantages such as high electrical conductivi...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C08L65/00C08G61/12C08H7/00C08J3/28C08J3/07
Inventor 刘营营
Owner 刘营营
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com