JP2012132026A - Method for producing electroconductive polymer/dopant complex organic solvent dispersion - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a stable, electroconductive polymer/dopant complex organic solvent dispersion which is obtained by dispersing an electroconductive polymer and a dopant in an organic solvent.SOLUTION: The method for producing the electroconductive polymer/dopant complex organic solvent dispersion having a water content of ≤20 wt.% is characterized by removing water by spray drying from an aqueous dispersion of an electroconductive polymer/dopant complex (A) to thereby give a dry solid, and by carrying out dispersing treatment after adding to the dry solid an organic solvent (D) and a dispersing agent (B) containing at least one kind selected from the group consisting of amines and nonionic surfactants. According to another embodiment, the method for producing the electroconductive polymer/dopant complex organic solvent dispersion having a water content of ≤20 wt.% is characterized by adding a precipitating agent (C) or an organic solvent (D) to an aqueous dispersion of the above (A), removing water from the resulting gelatinous swollen body, adding the organic solvent (D) and the above dispersing agent (B), and carrying out dispersing treatment.

Description

  The present invention relates to a method for producing a conductive polymer / dopant complex organic solvent dispersion.

  Conductive polymers having a conjugated structure are used as industrial materials such as various antistatic agents and electrode materials because they exhibit good conductivity and stability. High conductivity is imparted to this conjugated conductive polymer by adding a substance for developing conductivity called a dopant. For example, in recent years, poly (3,4-ethylenedioxythiophene) (hereinafter sometimes referred to as PEDOT) has been widely used mainly for antistatic agent applications. PEDOT polymerizes 3,4-ethylenedioxythiophene, a monomer, using an oxidizing agent in the presence of a polyanion (eg, polystyrene sulfonic acid (hereinafter sometimes referred to as PSS)) as a dopant in an aqueous phase. By doing so, it is obtained in the state of a water-soluble or water-dispersible poly (3,4-ethylenedioxythiophene) / polyanion complex.

  This PEDOT / PSS aqueous dispersion is known to be able to form a conductive coating on a substrate by blending and applying it in an aqueous urethane resin, etc., and is used for transparent electrodes, antistatic applications, etc. Yes. However, PEDOT / PSS is in the form of an aqueous dispersion and contains PSS having an ionic structure at a high ratio, and thus has the following disadvantages and is not versatile.

  One of the disadvantages is that a small amount of a general organic solvent can be added to the PEDOT / PSS aqueous dispersion, but if added in a large amount, a stable dispersion state cannot be maintained and the conductive particles aggregate. Phenomenon.

  In order to obtain a conductive coating film, the binder monomer solution or dispersion and the conductive polymer are mixed or dispersed to polymerize, or the binder polymer solution or dispersion and the conductive polymer are mixed and dispersed. Although most of the methods are used, most of the monomers, polymer solutions, and dispersions are organic solvent-based, so adding an aqueous dispersion of PEDOT / PSS evaporates after the water remains in the coating film. Or, since the compatibility between the PSS and the polymer of the matrix material is poor, the PSS and the polymer of the matrix material may be separated, resulting in problems such as a decrease in transparency and instability of the coating state.

  Furthermore, when applied to a moisture sensitive material such as an organic electroluminescence element, there is a possibility that a problem due to water derived from this water dispersion may occur, and there is a limitation in application.

  As a method for solving these problems, a part of the solvent of the aqueous dispersion is replaced with an organic solvent that is miscible with water, such as a lower alcohol, to obtain a hydrous organic solvent dispersion, and this is used. There is a way to do it. However, since the solubility of the matrix material polymer or the raw material monomer in alcohol is generally not sufficient, the range of application is limited. Moreover, since it is a hydrous solvent system, when using together with an organic solvent / binder monomer or polymer, the transparency of the coating film may be reduced, as in the case of using a single water dispersion.

  Another possible method is to add an organic solvent having an azeotropic property with water to the PEDOT / PSS aqueous dispersion, and remove the water by azeotropic distillation to obtain an organic solvent dispersion. In this case, since the kind of the organic solvent to be dispersed is limited to amides, pyrrolidones, etc., there is a limit to application. (For example, see Patent Document 1)

  Furthermore, as another improvement measure, there is a method in which a PEDOT / PSS aqueous dispersion is heat-dried or freeze-dried to form a solid, and a pulverized product is used for dispersion. (For example, refer to Patent Document 2) In this case, a bead mill for forming a dispersion, in which particles dispersed in water tend to be firmly fixed and are not easily crushed to the original particle size. There is a problem that energy and time required for dispersion are large.

JP-T-2004-532292 Japanese translation of PCT publication No. 2004-514753

  An object of the present invention is to provide a stable conductive polymer / dopant complex organic solvent dispersion obtained by dispersing a conductive polymer and a dopant in an organic solvent.

  The present inventor has intensively studied to solve the above-mentioned problems. As a result, the conductive polymer / dopant is dispersed by a specific method, and further, an amine, a nonionic surfactant, or the like is used. It has been found that a molecular / dopant complex organic solvent dispersion can be obtained.

That is, the present invention relates to an organic solvent (a) obtained by removing water from an aqueous dispersion of a conductive polymer dopant complex (A) comprising a conductive polymer (a1) and a dopant (a2) by spray drying. D) and a dispersant (B) containing at least one selected from the group consisting of amines and nonionic surfactants are added to perform dispersion treatment, and the water content is 20% by weight or less Method for producing conductive polymer / dopant complex organic solvent dispersion; precipitating agent (C) in aqueous dispersion of conductive polymer dopant complex (A) comprising conductive polymer (a1) and dopant (a2) Alternatively, the organic solvent (D) is added, water is removed from the obtained gel-like swelling body, and at least selected from the group consisting of the organic solvent (D) and amines and nonionic surfactants. Method for producing a content of water, characterized in that the dispersing agent containing one added (B) performing a dispersion treatment is 20 wt% or less conducting polymer / dopant complex organic solvent dispersion, relates.

  The conductive polymer / dopant complex organic solvent dispersion of the present invention is excellent in storage stability. Moreover, since the conductive polymer / dopant complex organic solvent dispersion of the present invention is obtained by dispersing the conductive polymer / dopant complex in an organic solvent, it can be used for various applications. Furthermore, according to the method for producing an electroconductive polymer / dopant complex organic solvent dispersion of the present invention, the electroconductive polymer / dopant complex can be obtained simply by performing a simple dispersion treatment without performing an advanced dispersion treatment such as a bead mill. There is an advantage that an organic solvent dispersion can be obtained.

  The conductive polymer / dopant complex organic solvent dispersion of the present invention comprises a conductive polymer (a1) (hereinafter referred to as component (a1)), a dopant (a2) (hereinafter referred to as component (a2)) and an amine. And a dispersant (B) (hereinafter referred to as component (B)) containing at least one selected from the group consisting of a nonionic surfactant and a nonionic surfactant, and a water content of 20% by weight or less (preferably 15%). The conductive polymer / dopant complex organic solvent dispersion is (wt% or less).

The component (a1) used in the present invention is not particularly limited as long as it is an organic polymer having a main chain composed of a π-conjugated system, and a known one can be used. Specific examples include polyanilines, polythiophenes, polypyrroles, polyfurans, polyacetylenes, polyphenylenes, polyphenylene vinylenes, polyacenes polythiophene vinylenes, and the like. These may be used alone or in combination. In addition, although (a1) component can obtain sufficient electroconductivity even if it is unsubstituted, in order to improve electroconductivity, an alkyl group, a carboxy group, a sulfo group, an alkoxy group, a hydroxy group, a cyano group, etc. These functional groups are preferably introduced into the polymer. Specific examples of the component (a1) include polypyrrole, poly (3-methylpyrrole), poly (3-ethylpyrrole), poly (3-n-propylpyrrole), poly (3-butylpyrrole), poly (3- Octylpyrrole), poly (3-decylpyrrole), poly (3-dodecylpyrrole), poly (3,4-dimethylpyrrole), poly (3,4-dibutylpyrrole), poly (3-carboxypyrrole), poly ( 3-methyl-4-carboxypyrrole), poly (3-methyl-4-carboxyethylpyrrole), poly (3-methyl-4-carboxybutylpyrrole), poly (3-hydroxypyrrole), poly (3-methoxypyrrole) ), Poly (3-ethoxypyrrole), poly (3-butoxypyrrole), poly (3-hexyloxypyrrole), poly (3-methyl) -4-hexyloxypyrrole), poly (3-methyl-4-hexyloxypyrrole), poly (thiophene), poly (3-methylthiophene), poly (3-ethylthiophene), poly (3-propylthiophene), Poly (3-butylthiophene), poly (3-hexylthiophene), poly (3-heptylthiophene), poly (3-octylthiophene), poly (3-decylthiophene), poly (3-dodecylthiophene), poly ( 3-octadecylthiophene), poly (3-bromothiophene), poly (3-chlorothiophene), poly (3-iodothiophene), poly (3-cyanothiophene), poly (3-phenylthiophene), poly (3, 4-dimethylthiophene), poly (3,4-dibutylthiophene), poly (3-hydroxythio) ), Poly (3-methoxythiophene), poly (3-ethoxythiophene), poly (3-butoxythiophene), poly (3-hexyloxythiophene), poly (3-heptyloxythiophene), poly (3- Octyloxythiophene), poly (3-decyloxythiophene), poly (3-dodecyloxythiophene), poly (3-octadecyloxythiophene), poly (3,4-dihydroxythiophene), poly (3,4-dimethoxythiophene) ), Poly (3,4-diethoxythiophene), poly (3,4-dipropoxythiophene), poly (3,4-dibutoxythiophene), poly (3,4-dihexyloxythiophene), poly (3,4 4-diheptyloxythiophene), poly (3,4-dioctyloxythiophene), poly ( 3,4-didecyloxythiophene), poly (3,4-didodecyloxythiophene), poly (3,4-ethylenedioxythiophene), poly (3,4-propylenedioxythiophene), poly (3,4 4-butenedioxythiophene), poly (3-methyl-4-methoxythiophene), poly (3-methyl-4-ethoxythiophene), poly (3-carboxythiophene), poly (3-methyl-4-carboxythiophene) ), Poly (3-methyl-4-carboxyethylthiophene), poly (3-methyl-4-carboxybutylthiophene), polyaniline, poly (2-methylaniline), poly (3-isobutylaniline), poly (2- Aniline sulfonic acid), poly (3-aniline sulfonic acid) and the like. As the component (a1), polythiophenes are preferable from the viewpoint of hue and the like.

As the component (a1), a commercially available product may be used as it is. However, a precursor monomer that forms a π-conjugated conductive polymer in an appropriate solvent is described as an appropriate oxidizing agent, an oxidation catalyst, and a later-described component (a2). By conducting chemical oxidative polymerization in the presence of the component, a conductive polymer dopant complex (A) (hereinafter referred to as component (A)) can be easily obtained.

The precursor monomer is not particularly limited as long as it has a π-conjugated system in the molecule and can form a π-conjugated system in the main chain even when polymerized by the action of an appropriate oxidizing agent. Can be used. Specific examples include pyrroles and derivatives thereof, thiophenes and derivatives thereof, anilines and derivatives thereof, and the like. Specific examples of the precursor monomer include pyrrole, 3-methylpyrrole, 3-ethylpyrrole, 3-n-propylpyrrole, 3-butylpyrrole, 3-octylpyrrole, 3-decylpyrrole, 3-dodecylpyrrole, 3, 4-dimethylpyrrole, 3,4-dibutylpyrrole, 3-carboxylpyrrole, 3-methyl-4-carboxylpyrrole, 3-methyl-4-carboxyethylpyrrole, 3-methyl-4-carboxybutylpyrrole, 3-hydroxypyrrole 3-methoxypyrrole, 3-ethoxypyrrole, 3-butoxypyrrole, 3-hexyloxypyrrole, 3-methyl-4-hexyloxypyrrole, thiophene, 3-methylthiophene, 3-ethylthiophene, 3-propylthiophene, 3 -Butylthiophene, 3-hexylchi Phen, 3-heptylthiophene, 3-octylthiophene, 3-decylthiophene, 3-dodecylthiophene, 3-octadecylthiophene, 3-bromothiophene, 3-chlorothiophene, 3-iodothiophene, 3-cyanothiophene, 3-phenyl Thiophene, 3,4-dimethylthiophene, 3,4-dibutylthiophene, 3-hydroxythiophene, 3-methoxythiophene, 3-ethoxythiophene, 3-butoxythiophene, 3-hexyloxythiophene, 3-heptyloxythiophene, 3- Octyloxythiophene, 3-decyloxythiophene, 3-dodecyloxythiophene, 3-octadecyloxythiophene, 3,4-dihydroxythiophene, 3,4-dimethoxythiophene, 3,4-diethoxythiol 3,4-dipropoxythiophene, 3,4-dibutoxythiophene, 3,4-dihexyloxythiophene, 3,4-diheptyloxythiophene, 3,4-dioctyloxythiophene, 3,4-didecyloxy Thiophene, 3,4-didodecyloxythiophene, 3,4-ethylenedioxythiophene, 3,4-propylenedioxythiophene, 3,4-butenedioxythiophene, 3-methyl-4-methoxythiophene, 3-methyl -4-ethoxythiophene, 3-carboxythiophene, 3-methyl-4-carboxythiophene, 3-methyl-4-carboxyethylthiophene, 3-methyl-4-carboxybutylthiophene, aniline, 2-methylaniline, 3-isobutyl Aniline, 2-aniline sulfonic acid, 3-aniline A sulfonic acid etc. are mentioned.

It does not specifically limit as a solvent to be used, What is necessary is a solvent which can melt | dissolve or disperse | distribute the said precursor monomer, and can maintain the oxidizing power of an oxidizing agent and an oxidation catalyst. For example, polar solvents such as water, N-methyl-2-pyrrolidone, N, N-dimethylformamide, N, N-dimethylacetamide, dimethyl sulfoxide, hexamethylene phosphortriamide, acetonitrile, benzonitrile, cresol, phenol, xylenol, etc. Phenols, alcohols such as methanol, ethanol, propanol and butanol, ketones such as acetone and methyl ethyl ketone, hydrocarbons such as hexane, benzene and toluene, carboxylic acids such as formic acid and acetic acid, ethylene carbonate, propylene carbonate, etc. Carbonate compounds, ether compounds such as dioxane, diethyl ether, ethylene glycol dialkyl ether, propylene glycol dialkyl ether, polyethylene glycol dialkyl ether Chain ethers such as polypropylene glycol dialkyl ether, 3-methyl-2-oxazolidinone heterocyclic compounds such as, acetonitrile, glutarodinitrile, methoxy acetonitrile, propionitrile, nitrile compounds such as benzonitrile and the like. These solvents may be used alone, as a mixture of two or more kinds, or as a mixture with other organic solvents.

Any oxidizing agent or oxidation catalyst may be used as long as it can oxidize the precursor monomer to obtain a π-conjugated conductive polymer. For example, ammonium peroxodisulfate, sodium peroxodisulfate, peroxodisulfide Peroxodisulfates such as potassium sulfate, transition metal compounds such as ferric chloride, ferric sulfate, ferric nitrate and cupric chloride, metal halides such as boron trifluoride and aluminum chloride, silver oxide Metal oxides such as cesium oxide, peroxides such as hydrogen peroxide and ozone, organic peroxides such as benzoyl peroxide, oxygen, and the like.

  As (a2) component used by this invention, if it is a polyanion compound, it will not specifically limit, A well-known thing can be used. The component (a2) is, for example, a substituted or unsubstituted polyalkylene, a substituted or unsubstituted polyalkenylene, a substituted or unsubstituted polyimide, a substituted or unsubstituted polyamide, a substituted or unsubstituted polyester, and a copolymer thereof. And it consists of the structural unit which has an anion group, and the structural unit which does not have an anion group. The polyanion is a solubilized polymer that solubilizes the π-conjugated conductive polymer in a solvent. The anion group of the polyanion functions as a dopant for the π-conjugated conductive polymer, and improves the conductivity and heat resistance of the π-conjugated conductive polymer.

  A polyalkylene is a polymer whose main chain is composed of repeating methylenes. Examples of the polyalkylene include polyethylene, polypropylene, polybutene, polypentene, polyhexene, polyvinyl alcohol, polyvinylphenol, poly3,3,3-trifluoropropylene, polyacrylonitrile, polyacrylate, polystyrene, and the like.

  Polyalkenylene is a polymer composed of structural units containing one or more unsaturated bonds (vinyl groups) in the main chain. Specific examples of polyalkenylene include propenylene, 1-methylpropenylene, 1-butylpropenylene, 1-decylpropenylene, 1-cyanopropenylene, 1-phenylpropenylene, 1-hydroxypropenylene, 1-butenylene, 1-methyl-1-butenylene, 1-ethyl-1-butenylene, 1-octyl-1-butenylene, 1-pentadecyl-1-butenylene, 2-methyl-1-butenylene, 2-ethyl-1-butenylene, 2- Butyl-1-butenylene, 2-hexyl-1-butenylene, 2-octyl-1-butenylene, 2-decyl-1-butenylene, 2-dodecyl-1-butenylene, 2-phenyl-1-butenylene, 2-butenylene, 1-methyl-2-butenylene, 1-ethyl-2-butenylene, 1-octyl-2-butenylene 1-pentadecyl-2-butenylene, 2-methyl-2-butenylene, 2-ethyl-2-butenylene, 2-butyl-2-butenylene, 2-hexyl-2-butenylene, 2-octyl-2-butenylene, 2- Decyl-2-butenylene, 2-dodecyl-2-butenylene, 2-phenyl-2-butenylene, 2-propylenephenyl-2-butenylene, 3-methyl-2-butenylene, 3-ethyl-2-butenylene, 3-butyl 2-butenylene, 3-hexyl-2-butenylene, 3-octyl-2-butenylene, 3-decyl-2-butenylene, 3-dodecyl-2-butenylene, 3-phenyl-2-butenylene, 3-propylenephenyl- 2-butenylene, 2-pentenylene, 4-propyl-2-pentenylene, 4-butyl-2-pentenylene, 4-he Selected from sil-2-pentenylene, 4-cyano-2-pentenylene, 3-methyl-2-pentenylene, 4-ethyl-2-pentenylene, 3-phenyl-2-pentenylene, 4-hydroxy-2-pentenylene, hexenylene, etc. And a polymer containing one or more structural units. Among these, substituted or unsubstituted butenylene is preferable because of the interaction between the unsaturated bond and the π-conjugated conductive polymer and the ease of synthesis using substituted or unsubstituted butadiene as a starting material.

  As polyimide, pyromellitic dianhydride, biphenyltetracarboxylic dianhydride, benzophenone tetracarboxylic dianhydride, 2,2,3,3-tetracarboxydiphenyl ether dianhydride, 2,2- [4,4 Examples include polyimides from anhydrides such as' -di (dicarboxyphenyloxy) phenyl] propane dianhydride and diamines such as oxydianine, paraphenylenediamine, metaphenylenediamine, and benzophenonediamine.

Examples of the polyamide include polyamide 6, polyamide 6,6, polyamide 6,10 and the like.

Examples of the polyester include polyethylene terephthalate and polybutylene terephthalate.

  When the polyanion has a substituent, examples of the substituent include an alkyl group, a hydroxy group, an amino group, a carboxy group, a cyano group, a phenyl group, a phenol group, an ester group, and an alkoxy group. In view of solubility in a solvent, heat resistance, compatibility with a resin, and the like, an alkyl group, a hydroxy group, a phenol group, and an ester group are preferable. Alkyl groups can increase solubility and dispersibility in polar or nonpolar solvents, compatibility and dispersibility in resins, and hydroxy groups form hydrogen bonds with other hydrogen atoms. This makes it easy to increase solubility in organic solvents, compatibility with resins, dispersibility, and adhesion. In addition, the cyano group and the hydroxyphenyl group can increase the compatibility and solubility in the polar resin, and can also increase the heat resistance. Among the above substituents, an alkyl group, a hydroxy group, an ester group, and a cyano group are preferable. Examples of the alkyl group include chain alkyl groups such as methyl, ethyl, propyl, butyl, isobutyl, t-butyl, pentyl, hexyl, octyl, decyl, and dodecyl, and cycloalkyl groups such as cyclopropyl, cyclopentyl, and cyclohexyl. . In consideration of solubility in an organic solvent, dispersibility in a resin, steric hindrance, and the like, an alkyl group having 1 to 12 carbon atoms is more preferable. Examples of the hydroxy group include a hydroxy group directly bonded to the main chain of the polyanion or a hydroxy group bonded via another functional group. Examples of other functional groups include an alkyl group having 1 to 7 carbon atoms, an alkenyl group having 2 to 7 carbon atoms, an amide group, and an imide group. The hydroxy group is substituted at the end or in these functional groups. Among these, a hydroxy group bonded to the terminal of an alkyl group having 1 to 6 carbon atoms bonded to the main chain is more preferable from the viewpoint of compatibility with a resin and solubility in an organic solvent. Examples of the amino group include an amino group directly bonded to the main chain of the polyanion or an amino group bonded via another functional group. Examples of other functional groups include an alkyl group having 1 to 7 carbon atoms, an alkenyl group having 2 to 7 carbon atoms, an amide group, and an imide group. The amino group is substituted at the end or in these functional groups. Examples of the phenol group include a phenol group directly bonded to the main chain of the polyanion or a phenol group bonded via another functional group. Examples of other functional groups include an alkyl group having 1 to 7 carbon atoms, an alkenyl group having 2 to 7 carbon atoms, an amide group, and an imide group. The phenol group is substituted at the end or in these functional groups. Examples of the ester group include an alkyl ester group directly bonded to the main chain of the polyanion, an aromatic ester group, and an alkyl ester group or an aromatic ester group having another functional group interposed therebetween. The cyano group includes a cyano group directly bonded to the main chain of the polyanion, a cyano group bonded to the terminal of the alkyl group having 1 to 7 carbon atoms bonded to the main chain of the polyanion, and 2 to 2 carbon atoms bonded to the main chain of the polyanion. And a cyano group bonded to the terminal of 7 alkenyl group.

  The anion group of the polyanion may be any functional group that can undergo chemical oxidation doping to the component (a1). Among them, from the viewpoint of ease of production and stability, a monosubstituted sulfate group, a monosubstituted phosphoric acid group. An ester group, a phosphate group, a carboxyl group, a sulfo group and the like are preferable. Furthermore, from the viewpoint of the dope effect on the component (a1) of the functional group, a sulfo group, a monosubstituted sulfate group, and a carboxy group are more preferable.

  Specific examples of polyanions include polyvinyl sulfonic acid, polystyrene sulfonic acid, polyallyl sulfonic acid, polyacrylic acid ethyl sulfonic acid, polyacrylic acid butyl sulfonic acid, poly-2-acrylamido-2-methylpropane sulfonic acid, polyisoprene sulfone. Examples include acid, polyvinyl carboxylic acid, polystyrene carboxylic acid, polyallyl carboxylic acid, polyacryl carboxylic acid, polymethacryl carboxylic acid, poly-2-acrylamido-2-methylpropane carboxylic acid, polyisoprene carboxylic acid, polyacrylic acid and the like. . These homopolymers may be sufficient and 2 or more types of copolymers may be sufficient. Among these, polystyrene sulfonic acid, polyisoprene sulfonic acid, polyacrylic acid ethyl sulfonic acid, and polyacrylic acid butyl sulfonic acid are preferable.

  The degree of polymerization of the polyanion is not particularly limited, but usually the monomer unit is about 10 to 100,000, and from the viewpoint of solvent solubility and conductivity, it is preferably 50 to 10,000.

  Examples of methods for producing polyanions include a method of directly introducing an anionic group into a polymer having no anionic group using an acid, a method of sulfonating a polymer having no anionic group with a sulfonating agent, and anionic group-containing polymerization. And a method of production by polymerization of a functional monomer.

  As a method for producing an anion group-containing polymerizable monomer by polymerization, for example, a method for producing an anion group-containing polymerizable monomer in a solvent by oxidative polymerization or radical polymerization in the presence of an oxidizing agent and / or a polymerization catalyst. Can be mentioned. Specifically, a predetermined amount of the anionic group-containing polymerizable monomer is dissolved in a solvent, kept at a constant temperature, and a solution in which a predetermined amount of an oxidizing agent and / or a polymerization catalyst is dissolved in the solvent is added to the predetermined amount. React with time. The polymer obtained by the reaction is adjusted to a certain concentration by the solvent. In this production method, an anionic group-containing polymerizable monomer may be copolymerized with a polymerizable monomer having no anionic group. The oxidizing agent, oxidation catalyst, and solvent used in the polymerization of the anionic group-containing polymerizable monomer are the same as those used in the polymerization of the precursor monomer forming the component (a1).

  When the obtained polymer is a polyanionic salt, it is preferably a polyanionic acid. Examples of the anionic acid include an ion exchange method using an ion exchange resin, a dialysis method, an ultrafiltration method, and the like. Among these, the ultrafiltration method is preferable from the viewpoint of easy work.

  The anionic group-containing polymerizable monomer is one in which a part of the monomer is substituted with a mono-substituted sulfate group, a carboxy group, a sulfo group, etc., for example, a substituted or unsubstituted ethylene sulfonic acid compound, a substituted or unsubstituted Styrene sulfonic acid compound, substituted or unsubstituted acrylate sulfonic acid compound, substituted or unsubstituted methacrylate sulfonic acid compound, substituted or unsubstituted acrylamide sulfonic acid compound, substituted or unsubstituted cyclovinylene sulfonic acid compound, substituted or unsubstituted And a substituted or unsubstituted vinyl aromatic sulfonic acid compound.

Specifically, vinyl sulfonic acid and salts thereof, allyl sulfonic acid and salts thereof, methallyl sulfonic acid and salts thereof, styrene sulfonic acid, methallyloxybenzene sulfonic acid and salts thereof, allyloxybenzene sulfonic acid and salts thereof, α-methylstyrenesulfonic acid and its salts, acrylamide-t-butylsulfonic acid and its salts, 2-acrylamido-2-methylpropanesulfonic acid and its salts, cyclobutene-3-sulfonic acid and its salts, isoprenesulfonic acid and its Salts, 1,3-butadiene-1-sulfonic acid and its salts, 1-methyl-1,3-butadiene-2-sulfonic acid and its salts, 1-methyl-1,3-butadiene-4-sulfonic acid and its Salts, ethyl sulfonic acid (CH ₂ ═CH—COO— (C H _{2) 2} -SO ₃ H) and its salts, acrylic acid propyl sulfonic acid _{(CH 2 = CH-COO- (} CH 2) 3 -SO 3 H) and its salts, acrylic acid -t- butyl sulfonic acid (CH _{2 = CH-COO-C (} CH 3) 2 CH 2 -SO 3 H) and its salts, acrylic acid -n- butyl sulfonic acid _{(CH 2 = CH-COO- (} CH 2) 4 -SO 3 H) and its salts, allyl ethyl sulfonic acid _{(CH 2 = CHCH 2 -COO- (} CH 2) 2 -SO 3 H) and its salts, allyl acid -t- butyl sulfonic acid _{(CH 2 = CHCH 2 -COO-} C ( CH ₃ ) ₂ CH ₂ —SO ₃ H) and salts thereof, 4-pentenoic acid ethylsulfonic acid (CH ₂ ═CH (CH ₂ ) ₂ —COO— (CH ₂ ) ₂ —SO ₃ H) and salts thereof, 4 -Propyl sulfone pentenoate Acid _{(CH 2 = CH (CH 2} ) 2 -COO- (CH 2) 3 -SO 3 H) and salts thereof, 4-pentenoic acid -n- butyl sulfonic acid _{(CH 2 = CH (CH 2} ) 2 -COO _{- (CH 2) 4 -SO 3} H) and salts thereof, 4-pentenoic acid -t- butyl sulfonic acid _{(CH 2 = CH (CH 2} ) 2 -COO-C (CH 3) 2 CH 2 -SO 3 H ) And salts thereof, 4-pentenoic acid phenylene sulfonic acid (CH ₂ ═CH (CH ₂ ) ₂ —COO—C ₆ H ₄ —SO ₃ H) and salts thereof, 4-pentenoic acid naphthalene sulfonic acid (CH ₂ ═CH (CH ₂ ) ₂ —COO—C ₁₀ H ₈ —SO ₃ H) and its salts, ethyl methacrylate sulfonic acid (CH ₂ ═C (CH ₃ ) —COO— (CH ₂ ) ₂ —SO ₃ H) and its Salts, propyl methacrylate (CH ₂ ═C ( _{CH 3) -COO- (CH 2)} 3 -SO 3 H) and its salts, methacrylic acid -t- butyl sulfonic acid _{(CH 2 = C (CH 3} ) -COO-C (CH 3) 2 CH 2 -SO ₃ H) and salts thereof, methacrylic acid-n-butylsulfonic acid (CH ₂ ═C (CH ₃ ) —COO— (CH ₂ ) ₄ —SO ₃ H) and salts thereof, methacrylic acid phenylene sulfonic acid (CH ₂ ═ _{C (CH 3) -COO-C} 6 H 4 -SO 3 H) and its salts, methacrylic acid naphthalenesulfonic acid _{(CH 2 = C (CH 3} ) -COO-C 10 H 8 -SO 3 H) and its salts , Polyvinyl carboxylic acid, polystyrene carboxylic acid, polyallyl carboxylic acid, polyacryl carboxylic acid, polymethacryl carboxylic acid, poly-2-acrylamido-2-methylpropane carboxylic acid, polyisoprene Examples include rubonic acid and polyacrylic acid. Moreover, the copolymer containing 2 or more types of these may be sufficient.

  Examples of the polymerizable monomer having no anionic group include ethylene, propene, 1-butene, 2-butene, 1-pentene, 2-pentene, 1-hexene, 2-hexene, styrene, p-methylstyrene, p. -Ethylstyrene, p-butylstyrene, 2,4,6-trimethylstyrene, p-methoxystyrene, α-methylstyrene, 2-vinylnaphthalene, 6-methyl-2-vinylnaphthalene, 1-vinylimidazole, vinylpyridine, Vinyl acetate, acrylaldehyde, acrylonitrile, N-vinyl-2-pyrrolidone, N-vinylacetamide, N-vinylformamide, N-vinylimidazole, acrylamide, N, N-dimethylacrylamide, acrylic acid, methyl acrylate, Ethyl acrylate, propyl acrylate, acrylic acid -Butyl, i-butyl acrylate, t-butyl acrylate, isooctyl acrylate, isononyl butyl acrylate, lauryl acrylate, allyl acrylate, stearyl acrylate, isobornyl acrylate, cyclohexyl acrylate, benzyl acrylate, acrylic Ethyl carbitol, phenoxyethyl acrylate, hydroxyethyl acrylate, methoxyethyl acrylate, ethoxyethyl acrylate, methoxybutyl acrylate, methacrylic acid, methyl methacrylate, ethyl methacrylate, n-butyl methacrylate, i methacrylate -Butyl, t-butyl methacrylate, 2-ethylhexyl methacrylate, lauryl methacrylate, tridecyl methacrylate, stearyl methacrylate, cyclohexyl methacrylate, methacrylic acid Benzyl, 2-hydroxyethyl methacrylate, 2-hydroxypropyl methacrylate, acryloylmorpholine, vinylamine, N, N-dimethylvinylamine, N, N-diethylvinylamine, N, N-dibutylvinylamine, N, N-di -T-butylvinylamine, N, N-diphenylvinylamine, N-vinylcarbazole, vinyl alcohol, vinyl chloride, vinyl fluoride, methyl vinyl ether, ethyl vinyl ether, cyclopropene, cyclobutene, cyclopentene, cyclohexene, cycloheptene, cyclooctene, 2-methylcyclohexene, vinylphenol, 1,3-butadiene, 1-methyl-1,3-butadiene, 2-methyl-1,3-butadiene, 1,4-dimethyl-1,3-butadiene, 1,2- Dimethyl , 3-butadiene, 1,3-dimethyl-1,3-butadiene, 1-octyl-1,3-butadiene, 2-octyl-1,3-butadiene, 1-phenyl-1,3-butadiene, 2-phenyl -1,3-butadiene, 1-hydroxy-1,3-butadiene, 2-hydroxy-1,3-butadiene and the like.

Although the usage-amount of (a1) component and (a2) component used by this invention is not specifically limited, (a2) component is about 0.5-5 weight part with respect to 1 weight part of (a1) component normally. . Moreover, as a combination of (a1) component and (a2) component used by this invention, what was selected from the group mentioned above can be used, but chemical stability, electrical conductivity, environmental stability, etc. From the viewpoint, poly (3,4-ethylenedioxythiophene) / polystyrenesulfonic acid is preferable. These may be synthesized by polymerization in the presence of an oxidizing agent in the state of an aqueous solution or aqueous dispersion in which a monomer and dopant of a conductive polymer coexist as described above, or a commercially available conductive polymer / dopant water dispersion. The body may be used. Examples of commercially available conductive polymer / dopant aqueous dispersions include Baytron P
(Trade name, manufactured by HC Stark Co., Ltd.), Orgacon (trade name, Agfa Co., Ltd.) and the like (both are PEDOT / PSS aqueous dispersions).

As (B) component used for this invention, if it is amines and / or a nonionic surfactant, it will not specifically limit, A well-known thing can be used.

Any known amine can be used without particular limitation as long as it is a compound having at least one amino group in the molecule. Examples of amines include, for example, general formula (1): R _n NH _3-n (wherein R is an alkyl group, an alkenyl group, an aralkyl group, a cycloalkyl group, or a phenyl group optionally having a substituent). Or a benzyl group or a general formula (2): —X—R ¹ (wherein X represents an alkylene oxide group which may have a branched structure, and R ¹ represents an alkyl group or a hydrogen atom). A functional group, n represents an integer of 1 to 3). Specifically, ammonia, methylamine, ethylamine, propylamine, butylamine, cyclohexylamine, dimethylamine, diethylamine, dipropylamine, dibutylamine, dicyclohexylamine, trimethylamine, triethylamine, tripropylamine, tributylamine, tricyclohexylamine, etc. Alkylamines, aromatic amines such as aniline and benzylamine, amines having a polyalkylene oxide structure such as polyoxyethylene oleylamine, polyoxyethylene stearylamine, and polyoxyethylene laurylamine. In addition, oxygen-containing amines such as morpholine, pyridine and the like other than the above can also be used. Among these, amines having a polyalkylene oxide structure are preferable from the viewpoint of dispersion stability, and polyoxyethylene alkylamines are particularly preferable.

As a nonionic surfactant, it does not specifically limit but a well-known thing can be used. Specific examples include polyoxyethylene alkyl ether, polyoxyethylene styryl phenyl ether, polyoxyethylene sorbitan fatty acid ester and the like.

  The conductive polymer / dopant complex organic solvent dispersion of the present invention is, for example, dried by removing water by spray drying from an aqueous dispersion of component (A) comprising (1) (a1) component and (a2) component. The organic solvent (D) (hereinafter referred to as component (D)) and component (B) are added to the solid for dispersion treatment (hereinafter sometimes referred to as method (1)), or (2) (a1) Precipitating agent (C) (hereinafter referred to as component (C)) is added to the aqueous dispersion of component (A) composed of component and component (a2), and water is removed from the resulting gel-like swelling body (D ) Component and (B) component are added for dispersion treatment (hereinafter sometimes referred to as (2) method).

Spray drying is a method of obtaining a dry solid by spraying an aqueous dispersion of the component (A) to form droplets and heating. Spray drying is performed using a spray dryer with nozzle spraying, and is not particularly limited, and a publicly known method can be adopted. For example, spray pressure of about 0.2 to 0.8 MPa, about 70 to 180 ° C. It can be carried out at the carrier gas temperature (inlet temperature).

The obtained dried solid can be replaced with the conductive polymer organic solvent dispersion by adding the component (B) and further adding the component (B) and performing a dispersion treatment.

The component (D) is not particularly limited as long as it does not dissolve the component (A), and a known component can be used. Specific examples include alcohols, ketones, ethers, amides, sulfoxides, sulfones, esters, and nitriles. Alcohols are not particularly limited as long as they have a hydroxyl group, and known alcohols can be used. Specific examples include monoalcohols such as methanol, ethanol, propanol, isopropanol, and butanol, dialcohols such as ethylene glycol, propylene glycol, and polypropylene glycol, and polyhydric alcohols such as glycerin and pentaerythritol. The ketones are not particularly limited as long as they have a ketone structure in the molecule, and known ones can be used. Specifically, acetone, methyl ethyl ketone, etc. are mentioned, for example. As ethers, ethers such as diethyl ether, ethyl isopropyl ether, dioxane, tetrahydrofuran, polyethylene glycol dialkyl ethers, and polypropylene glycol dialkyl ethers can be used. Examples of amides include dimethylformamide and N-methylpyrrolidone. Examples of the sulfoxides include dimethyl sulfoxide. Examples of the sulfones include sulfolane. Examples of the esters include methyl acetate and ethyl acetate. Examples of nitriles include acetonitrile and propionitrile. These may be used alone or in combination. Among these, alcohols such as ethanol, isopropanol, ethylene glycol, methyl ethyl ketone, methyl isobutyl ketone, and ethylene glycol are preferable from the viewpoints of handleability and dispersion stability. Water can be added to improve the dispersibility, but the water content of the conductive polymer / dopant complex organic solvent dispersion finally obtained is about 20% by weight or less. It is preferable to adjust the addition amount, or to add and disperse water, and then remove the water using a dehydrating agent, or evaporate the water at normal pressure or reduced pressure. The dehydrating agent to be used is not particularly limited and known ones can be used, and examples thereof include sodium sulfate and magnesium sulfate. The dispersion treatment is not particularly limited, and a known method may be employed. For example, the dispersion treatment can be performed using an apparatus such as a high-speed stirrer, an ultrasonic homogenizer, or a shaker. When advanced processing is required, processing such as a bead mill or a high-pressure homogenizer may be added. The solid content of the dispersion may be appropriately selected depending on the use and the like, and is not particularly limited, but is usually about 0.1 to 5% by weight, preferably 0.1 to 3.5% by weight, Preferably it is 0.1 to 2.5 weight% or less.

The amount of the component (B) used for dispersing the dried solid in the organic solvent is about 5 to 300% by weight with respect to the solid content (conductive polymer / dopant complex) in the organic solvent swell. Preferably it is 10 to 200% by weight.

The component (C) used in the method (2) of the present invention is not particularly limited as long as it can precipitate the component (A), and a known component can be used. Specifically, for example, there may be mentioned those obtained by adding amines or acids (other than the components (a1) and (a2)) to the component (D) described above.

Component (D) used for preparing component (C) includes n-propanol, isopropanol, ethylene glycol monoalkyl ether, polyethylene glycol monoalkyl ether, ethylene glycol dialkyl ether, polyethylene glycol dialkyl ether, and dispersion stability. Is preferable, the size of the agglomerated gel-like swelled body can be easily controlled, and the dispersibility in an organic solvent can be improved.

As the amines used in combination with the component (D), the component (B) described above can be used as it is. These amines may be used alone or in combination. In these, it is preferable at the point which becomes easy to disperse | distribute to an organic solvent by using polyoxyethylene alkylamines. It does not specifically limit as acids, A well-known thing can be used. Specifically, for example, inorganic acids such as sulfuric acid, hydrochloric acid and nitric acid, acetic acid, butyric acid, oxalic acid, adipic acid, dodecylbenzenesulfonic acid, toluenesulfonic acid, maleic acid resin and other polycarboxylic acids, polystyrene sulfonic acid and the like Examples include organic acids such as polysulfonic acid. In these, it is preferable at the point of the dispersion stability when dodecylbenzenesulfonic acid and toluenesulfonic acid remain | survive in a system. These acids may be used alone or in combination. (C) Although the usage-amount of amines or acids which comprise a component is not specifically limited, About 0.1-25 weight part of amines or acids should be normally added with respect to 100 weight part of (D) component. .

The amount of the component (D) used when the component (C) and the gel-like swelling body are purified is not particularly limited, and may be added until the gel-like swelling body is generated. When the component (C) is used, the amine or acid in the component (C) is usually about 5 to 100 parts by weight, preferably 5 with respect to 100 parts by weight of the total amount (solid content) of the component (A). ˜70 parts by weight, more preferably 5 to 50 parts by weight may be added. The generated gel-like swelling body can be separated by filtration, for example. For the filtration, a known method such as natural filtration, reduced pressure filtration, pressure filtration, centrifugal filtration or the like can be employed. In addition, you may perform isolation | separation of a gel-like swelling body by evaporating an organic solvent and water.

  Since the obtained gel-like swelling body usually contains water, the water content of the finally obtained conductive polymer / dopant complex organic solvent dispersion is about 20% by weight or less. It is preferable to repeat washing with the component (D) to make the gel-like product an organic solvent swell. In addition, the removal of water may be used in combination with a dehydrating agent, or may be evaporated at normal pressure or reduced pressure.

  The obtained organic solvent swell can be replaced with the conductive polymer organic solvent dispersion by adding the component (D) and further adding the component (B) and carrying out a dispersion treatment. In addition, the kind of (D) component used for dispersion | distribution may be the same as that used when producing | generating a gel-like organic-solvent swelling body, may differ, and even if it is a single kind, several types It may be a mixture of types. The dispersion treatment is not particularly limited, and a known method may be employed. For example, the dispersion treatment can be performed using an apparatus such as a high-speed stirrer, an ultrasonic homogenizer, or a shaker. When advanced processing is required, processing such as a bead mill or a high-pressure homogenizer may be added. The solid content of the dispersion may be appropriately selected depending on the use and the like, and is not particularly limited, but the upper limit is usually 5% by weight or less, preferably 3.5% by weight or less, more preferably 2.5% by weight or less. The lower limit is usually 0.1% by weight or more.

  When the component (B) used to disperse the organic solvent swell in the organic solvent is an amine, the same amines added when the gel organic solvent swell is formed can be used. When amines are added as component (C), residual amines can be used for dispersion. However, it is preferable to add component (B) at the time of dispersion and perform treatment. Component (B) is added in an amount of about 5 to 200% by weight, preferably 10 to 100% by weight, more preferably 20 to 80% by weight, based on the amount of component (A) (solid content) in the organic solvent swell. It is.

  The conductive polymer / dopant complex organic solvent dispersion thus obtained can be used as a coating agent in the field of electronic devices and the like, for example, when used in combination with a polymer other than the conductive polymer. In the composition, for example, a conductive polymer / dopant complex organic solvent dispersion is added to one in which a polymer other than the conductive polymer is dissolved in the same or compatible organic solvent as the component (D). A composition can be obtained by carrying out a dispersion treatment and further adding an antifoaming agent, a leveling agent or the like as required. The polymer to be used is not particularly limited as long as it is a polymer that can be used for a coating agent, and known polymers can be used. Specific examples include various resins such as acrylic resin, polyurethane resin, polyester resin, and epoxy resin. The composition thus obtained becomes a polymer film in which a conductive polymer is dispersed by applying a drying treatment after being applied onto a substrate.

  Moreover, it can use as a coating agent in field | areas, such as an electronic device, by using together a conductive polymer / dopant complex organic solvent dispersion and a well-known polymerizable monomer and / or polymerizable oligomer, for example. The composition is, for example, a mixture of a polymerizable monomer and / or polymerizable oligomer and, if necessary, the same or compatible organic solvent as the component (D), the conductive polymer / dopant of the present invention. It can be obtained by adding a complex organic solvent dispersion, carrying out a dispersion treatment, and further adding an antifoaming agent, a leveling agent or the like as required. The composition can be polymerized by heat, light (ultraviolet ray, electron beam, etc.) in the presence of a polymerization initiator, if necessary, and the conductive polymer is dispersed in the resulting polymer. A film of The polymerizable monomer to be used is not particularly limited as long as it can be radically polymerized. For example, methyl (meth) acrylate, ethyl (meth) acrylate, (n-butyl) (meth) acrylate, (meth ) -2-hydroxyethyl acrylate, hydroxypropyl (meth) acrylate, glycidyl (meth) acrylate, N- (meth) acryloyloxysuccinimide, ethylene glycol di- (meth) acrylate, (meth) acryl Polymerizable carboxylic acid esters such as tribromophenyl acid, glycosyloxyethyl 2- (meth) acrylate, 2-methacryloyloxyethyl phosphorylcholine; (meth) acrylonitrile, (meth) acrolein, (meth) acrylamide, N, N -Dimethylacrylamide, N-isopropyl (Meth) acrylamide, N-vinylformamide, 3-acrylamidophenylboronic acid, N-acryloyl-N'biotinyl-3,6-dioxaoctane-1,9-diamine, butadiene, isoprene, vinyl acetate, vinylpyridine, N-vinyl Unsaturated carboxylic acid amides such as pyrrolidone, N- (meth) acryloyl morpholine, vinyl chloride, vinylidene chloride, vinyl bromide, polymerizable unsaturated nitriles, vinyl halides, conjugated dienes, polyethylene glycol mono (meta) ) Macromonomers such as acrylate, polypropylene glycol mono (meth) acrylate, polymerizable unsaturated aromatics such as styrene, chlorostyrene, α-methylstyrene, divinylbenzene, vinyltoluene; (meth) acrylic acid, itaconic acid, Maleic acid, lid Examples thereof include polymerizable unsaturated carboxylic acids such as phosphoric acid; and polymerizable unsaturated sulfonic acids such as styrene sulfonic acid and sodium styrene sulfonate. Moreover, as an oligomer, a well-known acrylic oligomer can be used. In addition, although the usage-amount of the conductive polymer / dopant complex organic solvent dispersion of this invention is not specifically limited, Usually, it is 0.2-5 with respect to 100 weight part (solid content) of a polymerizable monomer and / or oligomer. What is necessary is just to use about a weight part (solid content).

  In addition, by adding the conductive polymer / dopant complex organic solvent dispersion of the present invention to the polymer powder or polymer solution and volatilizing the organic solvent, the conductive polymer is dispersed and combined on the surface of the polymer powder or the polymer liquid. The prepared composition can also be produced. The polymer powder used as the matrix may be thermoplastic or thermosetting. In the case of thermoplasticity, a nucleating agent, a release agent, etc. may be added as necessary. In this case, a curing agent, a curing aid or the like may be added as necessary. The polymer to be used is not particularly limited as long as it is a polymer that can be used for a coating agent, and known polymers can be used. Specific examples include various resins such as acrylic resin, polyurethane resin, polyester resin, and epoxy resin. By performing injection molding, extrusion molding, blow molding, or the like on the thermoplastic composition, a polymer sheet, film, or the like in which a conductive polymer is dispersed can be obtained. Further, by performing compression molding, transfer molding or the like on the thermosetting composition, a polymer sheet, plate, or the like in which a conductive polymer is dispersed can be obtained. In addition, although the usage-amount of the conductive polymer / dopant complex organic solvent dispersion of this invention is not specifically limited, Usually, 0.5-8 weight part (solid content) with respect to 100 weight part (solid content) of a polymer. The degree may be used.

  Examples of the present invention will be specifically described below, but the present invention is not limited to the examples. The water content was evaluated using a Karl Fischer moisture meter (Dia Instruments, KF-21 type). In addition,% shows weight%.

Example 1
100 g of Orgacon (solid content 1.2%) was treated with a spray dryer (manufactured by Yamato Kagaku Co., GA-32) at a spray pressure of 0.6 MPa and a drying temperature (inlet) of 150 ° C. 9 g was obtained. Take 95 g of ethanol in a beaker, add 1.6 g of an amine alkylene oxide adduct (trade name: Esomine C / 25, manufactured by Lion Akzo), add 0.9 g of a blue solid, and add an emulsion disperser (trade name: CLEA) The mixture was processed for 10 minutes at 18000 rpm using a mix, manufactured by M Technique Co., Ltd., and was processed for 10 minutes at an output of 400 W using an ultrasonic disperser (19.6 kHz, manufactured by Ginsen). The obtained dispersion was a uniform dispersion of PEDOT / PSS particles, and the average particle size was 100 nm. The water content was 8.6%. This dispersion was allowed to stand at room temperature for 1 month, but no phenomenon such as separation or sedimentation was observed, and a uniform dispersion state was maintained.

Example 2
100 g of Orgacon (solid content 1.2%) was placed in a flask, 100 g of ethanol was added, and 0.5 ml of 10% hydrochloric acid was added with stirring. Thereafter, stirring was continued for 30 minutes, and then left for 1 hour. The obtained gel-like material was filtered under reduced pressure using a glass filter, and then 200 g of ethanol was added, followed by vacuum filtration for 8 times. The solid content was removed from the glass filter in a state where the solid content was not completely dried, and the solid content weight was calculated from the decrease in heating weight to obtain 15 g of a wet blue solid having a solid content of 7.8%. Take 45 g of ethanol in a beaker, add 0.4 g of amine alkylene oxide adduct (trade name: Esomine C / 15, manufactured by Lion Akzo), add 15 g of wet blue solid, and add an emulsifying disperser (trade name: TK Homo). Using a Disper (manufactured by Koki Kogyo Kogyo Co., Ltd.), the treatment was performed for 10 minutes at a rotational speed of 4000 rpm. The obtained dispersion was a uniform dispersion of PEDOT / PSS particles, and the average particle size was 80 nm. Moreover, the moisture content was 12.5%. This dispersion was allowed to stand at room temperature for 1 month, but no phenomenon such as separation or sedimentation was observed, and a uniform dispersion state was maintained.

Example 3
100 g of Orgacon (solid content 1.2%) was placed in a flask, and 0.6 g of an amine alkylene oxide adduct (trade name: Esomine C / 15, manufactured by Lion Akzo) was added with stirring. Thereafter, stirring was continued for 30 minutes, and then left for 1 hour. The obtained gel-like material was filtered under reduced pressure using a glass filter, and then 200 g of ethanol was added, followed by vacuum filtration for 8 times. The solid content was taken out from the glass filter in a state where the solid content was not completely dried, and the solid content weight was calculated from the decrease in heating weight to obtain 11.5 g of a wet blue solid having a solid content of 10.2%. Take 55 g of ethanol in a beaker, add 0.4 g of polyoxyethylene stearylamine (trade name: NIKKOL TAMNS-10, manufactured by Nikko Chemicals), add 11.5 g of wet blue solid, and add an emulsifying disperser (trade name: Using a TK homodisper (manufactured by Tokushu Kika Kogyo Co., Ltd.), the treatment was carried out at a rotational speed of 4000 rpm for 10 minutes. The obtained dispersion was a uniform dispersion of PEDOT / PSS particles, and the average particle size was 100 nm. The water content was 13.8%. This dispersion was allowed to stand at room temperature for 1 month, but no phenomenon such as separation or sedimentation was observed, and the uniform dispersion state was maintained.

Example 4
100 g of Orgacon (solid content 1.2%) was placed in a flask, 100 g of ethanol was added, and 0.5 ml of 10% hydrochloric acid was added with stirring. Thereafter, stirring was continued for 30 minutes, and then left for 1 hour. The obtained gel-like material was filtered under reduced pressure using a glass filter, and then 200 g of ethanol was added, followed by vacuum filtration for 8 times. The solid content was removed from the glass filter in a state where the solid content was not completely dried, and the solid content weight was calculated from the decrease in heating weight to obtain 6.3 g of a wet blue solid having a solid content of 18.8%. Take 110 g of methyl ethyl ketone in a beaker, add 0.4 g of amine alkylene oxide adduct (trade name: Esomine C / 15, manufactured by Lion Akzo), add 6.3 g of wet blue solid, and add an emulsifying disperser (trade name: Using TK homodisper (manufactured by Tokushu Kika Kogyo Co., Ltd.), the treatment was carried out at a rotational speed of 5000 rpm for 20 minutes. The obtained dispersion was a uniform dispersion of PEDOT / PSS particles, and the average particle size was 110 nm. Moreover, the moisture content was 14.2%. This dispersion was allowed to stand at room temperature for 1 month, but no phenomenon such as separation or sedimentation was observed, and a uniform dispersion state was maintained.

Example 5
100 g of Orgacon (solid content 1.2%) was placed in a flask, 100 g of methanol was added, and 0.5 ml of 10% hydrochloric acid was added with stirring. Thereafter, stirring was continued for 30 minutes, and then left for 1 hour. The obtained gel-like material was filtered under reduced pressure using a glass filter, and then 200 g of methanol was added and the operation of vacuum filtration was repeated 8 times. The solid content was taken out from the glass filter in a state where the solid content was not completely dried, and the solid content weight was calculated from the decrease in heating weight to obtain 7.7 g of wet blue solid having a solid content of 15.2%. After taking 60 g of methyl ethyl ketone in a beaker and adding 0.4 g of an amine alkylene oxide adduct (trade name: Esomine C / 15, manufactured by Lion Akzo), 7.7 g of a wet blue solid is added, and an emulsifying disperser (trade name: Using a TK homodisper (manufactured by Tokushu Kika Kogyo Co., Ltd.), the treatment was carried out at a rotational speed of 4000 rpm for 10 minutes. The obtained dispersion was a uniform dispersion of PEDOT / PSS particles, and the average particle size was 100 nm. The water content was 14.7%. This dispersion was allowed to stand at room temperature for 1 month, but no phenomenon such as separation or sedimentation was observed, and the uniform dispersion state was maintained.

Example 6
100 g of Orgacon (solid content 1.2%) was placed in a flask, 100 g of ethanol was added, and 0.5 ml of 10% hydrochloric acid was added with stirring. Thereafter, stirring was continued for 30 minutes, and then left for 1 hour. The obtained gel-like material was filtered under reduced pressure using a glass filter, and then 200 g of ethanol was added, followed by vacuum filtration for 8 times. The solid content was taken out from the glass filter in a state where the solid content was not completely dried, and the solid content weight was calculated from the decrease in heating weight to obtain 21.9 g of a wet blue solid having a solid content of 5.2%. Take 60 g of ethanol in a beaker, add 1.1 g of amidoalkylene oxide adduct (trade name: Esocard C / 15, manufactured by Lion Akzo), add 21.9 g of wet blue solid, and add an emulsifying disperser (trade name: Using a TK homodisper (manufactured by Tokushu Kika Kogyo Co., Ltd.), the treatment was carried out at a rotational speed of 4000 rpm for 10 minutes. The obtained dispersion was a uniform dispersion of PEDOT / PSS particles, and the average particle size was 100 nm. The water content was 12.2%. This dispersion was allowed to stand at room temperature for 1 month, but no phenomenon such as separation or sedimentation was observed, and a uniform dispersion state was maintained.

Example 7
30 g of PPY-12 (polypyrrole aqueous dispersion, solid content 8%) manufactured by Maruhishi Oil Chemical Co., Ltd. was placed in a flask, 100 g of ethanol was added, and 0.5 ml of 10% hydrochloric acid was added with stirring. Thereafter, stirring was continued for 30 minutes, and then left for 1 hour. The obtained gel-like material was filtered under reduced pressure using a glass filter, and then 200 g of ethanol was added, followed by vacuum filtration for 8 times. The solid content was removed from the glass filter in a state where the solid content was not completely dried, and the solid content weight was calculated from the decrease in heating weight to obtain 34.0 g of a wet black solid having a solid content of 6.7%. 170 g of ethanol was placed in a beaker, and after adding 1.8 g of an amine alkylene oxide adduct (trade name: Esomine C / 25, manufactured by Lion Akzo), 34.0 g of a wet black solid was added, and an emulsifying disperser (trade name: Using a TK homodisper (manufactured by Tokushu Kika Kogyo Co., Ltd.), the treatment was carried out at a rotational speed of 7000 rpm for 10 minutes. The obtained dispersion was a uniform dispersion of polypyrrole / PSS particles, and the average particle size was 170 nm. The water content was 14.4%. This dispersion was allowed to stand at room temperature for 1 month, but no phenomenon such as separation or sedimentation was observed, and a uniform dispersion state was maintained.

Example 8
After adding 0.2 g of concentrated sulfuric acid to 10 g of water, 0.37 g of aniline was added to obtain a pale yellow liquid. After adding 8 g of a 30% aqueous solution of sodium polystyrenesulfonate to this, 4 g of a 10% aqueous solution of ammonium persulfate was added over 30 minutes while stirring, and stirring was further continued for 2 hours.
To this aqueous dispersion, 10 g of ethanol was added, and 0.5 ml of 10% hydrochloric acid was added with stirring. The obtained gel-like material was filtered under reduced pressure using a glass filter, and then 1200 g of ethanol was added and the operation of vacuum filtration was repeated 8 times. The solid content was taken out from the glass filter in a state where the solid content was not completely dried, and the solid content weight was calculated from the decrease in heating weight to obtain 39.0 g of a wet green solid having a solid content of 5.4%. Take 195 g of ethanol in a beaker, add 2.1 g of polyoxyethylene alkyl ether (trade name: Nonion E-205, manufactured by NOF Corporation), add 39.0 g of wet green solid, and add an emulsifying disperser (trade name: Using a TK homodisper (manufactured by Tokushu Kika Kogyo Co., Ltd.), the treatment was carried out at a rotational speed of 7000 rpm for 10 minutes. The resulting dispersion was a uniform dispersion of polyaniline / PSS particles, and the average particle size was 150 nm. Moreover, the moisture content was 14.1%. This dispersion was allowed to stand at room temperature for 1 month, but no phenomenon such as separation or sedimentation was observed, and a uniform dispersion state was maintained.

Example 9
20 parts of PEDOT / PSS complex ethanol dispersion prepared in Example 1, multifunctional polyester acrylate (manufactured by Toagosei Co., Ltd., Aronix M-400, solid content concentration 100%), N-vinylformamide (Daanitrix Corporation) ), NVF-TM, solid content concentration 100%) 4 parts, ethanol 40 parts, and photopolymerization initiator 1-hydroxy-cyclohexyl-phenyl ketone (hereinafter referred to as HCPK, trade names: Irgacure 184, Ciba Specialty) 2 parts of Chemicals Co., Ltd. were mixed and treated with an ultrasonic disperser (19.6 kHz, manufactured by Ginsen Co., Ltd.) at an output of 400 W for 10 minutes to obtain an active energy ray-curable coating composition. As a result of curing the composition by ultraviolet rays, the coating film has a surface resistance value of 8.6 × 10 ⁵ Ω / □, a total light transmittance of 86.3%, and a haze of 0.3, and has good conductivity and optical characteristics. was gotten.
(1) A sheet resistance coating composition is applied onto a polyethylene terephthalate (PET) film with a # 12 bar coater, dried at 80 ° C. for 2 minutes, and irradiated with 500 mJ / cm ² using a high-pressure mercury lamp under air. Cured in quantities. The surface resistance value of the cured coating film portion of this cured film was measured with a super insulation resistance / microammeter manufactured by Advantest Corporation.
Measurement conditions: Temperature 25 ° C
(2) Transparency of the cured film (total light transmittance and haze)
The total light transmittance and haze value of the cured film were measured using a color haze meter manufactured by Murakami Color Research Laboratory with a PET film as a reference.

Example 10
50 parts of PEDOT / PSS complex ethanol dispersion prepared according to Example 1, 50 parts of polyurethane (manufactured by Arakawa Chemical Industries, KL-593, ethyl acetate / 2-propanol system, solid content concentration 35%), 2-propanol 50 parts were mixed and processed using an ultrasonic disperser (19.6 kHz, manufactured by Ginsen Co., Ltd.) at an output of 400 W for 10 minutes to obtain a coating composition. It was coated on a PET film with a # 12 bar coater and dried at 80 ° C. for 30 minutes to obtain a coating film having a surface resistance value of 4.7 × 10 ⁵ Ω / □.

Comparative Example 1
100 g of Orgacon (solid content 1.2%) was placed in a flask, 100 g of methanol was added, and 0.5 ml of 10% hydrochloric acid was added with stirring. Thereafter, stirring was continued for 30 minutes, and then left for 1 hour. The obtained gel-like material was filtered under reduced pressure using a glass filter, and then 200 g of methanol was added and the operation of vacuum filtration was repeated 8 times. The solid content was taken out from the glass filter in a state where it was not completely dried, and the solid content weight was calculated from the decrease in the heated weight to obtain 14.2 g of a wet blue solid having a solid content of 8.2%. 60 g of ethanol was placed in a beaker, 14.2 g of a wet blue solid was added, and the mixture was treated for 20 minutes at a rotation speed of 5000 rpm using an emulsifier / disperser (trade name: TK Homo Disper, manufactured by Tokushu Kika Kogyo Co., Ltd.). The obtained treatment liquid was in a state where a uniform dispersion of PEDOT / PSS particles and coarse particles that were not dispersed were mixed, and when left untreated, the coarse particles settled. This treatment liquid was put in a glass container with a lid, zirconia beads having a diameter of 0.5 mm were added, and the mixture was shaken with a paint shaker for 4 hours. As a result, coarse particles were pulverized to obtain a uniform dispersion. When this dispersion was allowed to stand at room temperature for 1 month, a separation phenomenon was observed between the transparent layer and the blue layer.

Comparative Example 2
100 g of Orgacon (solid content 1.2%) was placed in a flask, 400 g of toluene was added, and the mixture was heated with stirring to distill off the toluene / water azeotrope. The remaining solid content was washed with ethanol, ethanol was filtered off, left at room temperature for 8 hours, and dried. 1 g of the obtained solid matter was added to 80 g of methanol, and the mixture was treated for 20 minutes at a rotational speed of 5000 rpm using an emulsifier / disperser (trade name: TK Homo Disper, manufactured by Tokki Kagaku Kogyo Co., Ltd.). The obtained treatment liquid is a light blue suspension, and coarse particles and lumps of PEDOT / PSS can be visually confirmed. This treatment liquid was put into a glass container with a lid, zirconia beads having a diameter of 0.5 mm were added, and the mixture was shaken with a paint shaker for 4 hours. As a result, coarse particles were crushed but lump was left. There was no uniform dispersion. When this lump was separated by filtration and the dispersion was allowed to stand at room temperature for 1 month, a separation phenomenon was observed between the transparent layer and the blue layer.

Claims (8)

From the aqueous dispersion of the conductive polymer dopant complex (A) comprising the conductive polymer (a1) and the dopant (a2), water is removed by spray drying to obtain a dry solid, an organic solvent (D), amines and Conductive polymer / dopant having a water content of 20% by weight or less, characterized by adding a dispersing agent (B) containing at least one selected from the group consisting of nonionic surfactants. A method for producing a complex organic solvent dispersion. A gelling agent obtained by adding a precipitant (C) or an organic solvent (D) to an aqueous dispersion of a dopant complex (A) of a conductive polymer comprising a conductive polymer (a1) and a dopant (a2). Water which removes water from the swollen body and adds a dispersing agent (B) containing at least one selected from the group consisting of an organic solvent (D) and amines and a nonionic surfactant to perform a dispersion treatment The manufacturing method of the conductive polymer / dopant complex organic solvent dispersion whose content of is 20 weight% or less. The conductive polymer (a1) is at least one selected from the group consisting of substituted or unsubstituted polyanilines, polythiophenes, polypyrroles, polyfurans, polyphenylenes, polyphenylene vinylenes, polyacenes and polythiophene vinylenes Item 3. A process for producing a conductive polymer / dopant complex organic solvent dispersion according to Item 1 or 2. The method for producing a conductive polymer / dopant complex organic solvent dispersion according to any one of claims 1 to 3, wherein the dopant (a2) is a polyanion. The anion group of the polyanion is at least one selected from the group consisting of a monosubstituted sulfate group, a monosubstituted phosphate group, a phosphate group, a carboxyl group, and a sulfo group. A process for producing a conductive polymer / dopant complex organic solvent dispersion. 6. The organic solvent (D) is at least one selected from the group consisting of alcohols, ketones, ethers, amides, sulfoxides, sulfones, esters and nitriles. A process for producing a conductive polymer / dopant complex organic solvent dispersion. The conductive polymer / dopant complex organic solvent dispersion according to any one of claims 2 to 6, wherein the precipitant (C) is at least one selected from those obtained by adding an amine or an acid to the organic solvent (D). Body manufacturing method. The dispersant (B) containing at least one selected from the group consisting of amines and nonionic surfactants is at least one selected from the group consisting of alkylamines and amines having a polyalkylene oxide structure. The method for producing a conductive polymer / dopant complex organic solvent dispersion according to any one of claims 1 to 7.