Dispersion of electroconductive composition, electroconductive composition, and use thereof
A technology of conductive polymer and dispersion liquid, which is applied in the field of dispersion liquid of conductive composition, conductive composition and its application, can solve problems such as difficulty in use, and achieve high conductivity, excellent heat resistance, and transparency high effect
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Embodiment 1
[0063] Put 600 g of a 4% aqueous solution of phenolsulfonic acid novolak resin (manufactured by Konishi Chemical Industry Co., Ltd. lotEW00130 (trade name), number average molecular weight 60,000, R is hydrogen) having a repeating unit represented by the general formula (I) into an internal volume of 1 L 0.3 g of ferrous sulfate heptahydrate was added to a stainless steel container, and 4 mL of 3,4-ethylenedioxythiophene was slowly added dropwise thereto. Stir with a stainless steel stirring paddle, install an anode on the container, and install a cathode at the root of the stirring paddle, at 1mA / cm 2 Electrolytic oxidative polymerization at a constant current for 18 hours. After the above-mentioned electrolytic oxidation polymerization, it was diluted to 6 times with water, and dispersed for 30 minutes with an ultrasonic homogenizer (manufactured by Nippon Seiki Co., Ltd., US-T300 (trade name)). Thereafter, 100 g of cation exchange resin Amberlite 120B (trade name) manufact...
Embodiment 2
[0066] In addition to adding 0.05 g of ferrous sulfate heptahydrate to a 3% aqueous solution of 600 g of sulfonated polyester (Plascoat Z-561 (trade name) manufactured by Huoying Chemical Industry Co., Ltd., number average molecular weight: 27,000), the Addition of dimethyl sulfoxide etc. was carried out in the same manner as in Example 1 to obtain a dispersion liquid of a conductive composition. When the sulfuric acid content in this dispersion was measured in the same manner as in Example 1, the sulfuric acid content was 22 ppm.
Embodiment 3
[0068] Except for using 600 g of a 4% aqueous solution of polystyrenesulfonic acid (manufactured by Teika Co., Ltd., number average molecular weight: 100,000), the same operations as in Example 1 were carried out, such as adding dimethyl sulfoxide, to obtain a dispersion liquid of a conductive composition. When the sulfuric acid content in this dispersion was measured in the same manner as in Example 1, the sulfuric acid content was 26 ppm.
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