Unlock instant, AI-driven research and patent intelligence for your innovation.

Process for producing aqueous dispersion of composite of poly(3,4-dialkoxythiophene) with polyanion

一种二烷氧基噻吩、聚阴离子的技术，应用在导体、电固体器件、混合电容器电极等方向，能够解决水分散体透明性和导电性未必充分等问题，达到透明性和导电性优异的效果

Active Publication Date: 2008-11-19
NAGASE CHEMTEX CORPORATION +1
View PDF3 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the aqueous dispersion itself containing the conductive polymer used is the same, the transparency and conductivity of the obtained aqueous dispersion may not be sufficient.

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
  • Process for producing aqueous dispersion of composite of poly(3,4-dialkoxythiophene) with polyanion
  • Process for producing aqueous dispersion of composite of poly(3,4-dialkoxythiophene) with polyanion
  • Process for producing aqueous dispersion of composite of poly(3,4-dialkoxythiophene) with polyanion

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 11

[0068]After ultrafiltration of Nippon NSC Ltd. (Japan ェㄡェスシシ 1 (strain)) polystyrenesulfonic acid 9X401 using Biomax-100 produced by millipore, cation exchange was performed, and diluted with desalted water to obtain polystyrene containing 24.7 parts. 1887 parts of aqueous solution of sulfonic acid (weight-average molecular weight: 253,000; sulfonation rate: 90%). Add 49 parts of 1% iron (III) sulfate aqueous solution, 30 parts of concentrated nitric acid and 8.8 parts of 3,4-ethylenedioxythiophene to this aqueous solution, stir, and keep the temperature in the reaction system at 10 DEG C, use 121 parts of a 10.9% peroxodisulfuric acid aqueous solution (obtained by mixing a 15% aqueous solution of sodium peroxodisulfate and 1.2 mass times S100H and performing filtration) was added dropwise for 6 hours. The sodium ion concentration in the reaction solution after adding the peroxodisulfuric acid aqueous solution was 430 ppm. After completion of the dropwise addition, the mixtur...

Embodiment 12

[0070] After using the Biomax-100 produced by millipore to ultrafilter the polystyrene sulfonic acid 9X401 of Nippon NSC Ltd., carry out cation exchange, and dilute with desalted water to obtain 24.7 parts of polystyrene sulfonic acid (weight-average molecular weight 253,000; sulfonated 90% yield) of 1,887 parts of aqueous solution. Add 49 parts of 1% iron (III) sulfate aqueous solution, 30 parts of concentrated nitric acid and 8.8 parts of 3,4-ethylenedioxythiophene to this aqueous solution, stir, and keep the temperature in the reaction system at 10 DEG C, use 121 parts of a 10.9% peroxodisulfuric acid aqueous solution (obtained by passing a 15% aqueous solution of sodium peroxodisulfate through a column filled with 4.0 mass times S100H) was added dropwise over 18 hours. The sodium ion concentration in the reaction solution after adding the peroxodisulfuric acid aqueous solution was 1 ppm. After completion of the dropwise addition, the mixture was stirred at 10° C. for 11 h...

Embodiment 13

[0072] After ultrafiltration of VERSA-TL125 of Nippon NSC Ltd. using Biomax-100 produced by millipore, cation exchange was performed and diluted with desalted water to obtain polystyrene sulfonic acid containing 24.7 parts (weight average molecular weight 125,000; sulfonation rate 100%) ) of 1,887 parts in water. Add 49 parts of 1% iron (III) sulfate aqueous solution, 30 parts of concentrated nitric acid and 8.8 parts of 3,4-ethylenedioxythiophene to the aqueous solution, stir, and then add 121 parts of 10.9% peroxodisulfuric acid aqueous solution at one time (Obtained by passing a 15% aqueous solution of sodium peroxodisulfate through a column filled with 2.0 mass times S100H). The sodium ion concentration in the reaction solution after adding the aqueous peroxodisulfuric acid solution was 13 ppm, and no other alkali metal ions could be detected. The temperature in the reaction system was kept at 18°C ​​and stirred for 17 hours. Next, 154 parts of cation exchange resin and ...

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

PropertyMeasurementUnit
visible light transmittanceaaaaaaaaaa
hazingaaaaaaaaaa
Login to View More

Abstract

A process for producing an aqueous dispersion which contains a conductive polymer ingredient and is capable of forming a thin conductive film excellent in transparency and conductivity; and an aqueous dispersion obtained by the process. The process comprises a step in which a 3,4-dialkoxythiophene is polymerized in an aqueous medium in the presence of a polyanion with the aid of an oxidizing agent. In this step, the oxidizing agent is added by dropping a solution or dispersion of the oxidizing agent into the reaction mixture. Alternatively, the concentration of alkali metal ions in the reaction mixture in the polymerization step is kept at 400 ppm or lower.

Description

technical field [0001] The present invention relates to a method for producing an aqueous dispersion of a complex of poly(3,4-dialkoxythiophene) and polyanion, and an aqueous dispersion obtained by the method. Background technique [0002] The transparent conductive film can be used for the coating of transparent electrodes such as liquid crystal displays, electroluminescent displays, plasma displays, electrochromic luminescent displays, solar cells, touch panels, and substrates such as electromagnetic wave sealing materials. The most widely used transparent conductive film is an evaporated film of indium-tin composite oxide (ITO), but high temperature is required for film formation, and there is a problem of high film formation cost. The ITO film formed by the coating film-forming method also requires high temperature during film formation, and its conductivity is affected by the degree of dispersion of ITO, and the haze value may not be low. In addition, inorganic oxide f...

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
Patent Type & Authority Applications(China)
IPC IPC(8): C08G61/12C08L25/18C08L65/00
CPCC09D125/18H01G11/48H01G11/56C08L65/00Y02E60/13C08J3/05C08G2261/794C08L25/18C08G2261/3223H01L51/0037C08J2365/00H01B1/127H10K85/1135C08L2666/02C08G61/12C08G75/06
Inventor 森田贵之千种康男宫西恭子S·基希梅尔W·勒韦尼希
Owner NAGASE CHEMTEX CORPORATION