486 results about "Polystyrenesulfonic acid" patented technology

The method for producing an aqueous dispersion containing a complex of poly(3,4-dialkoxythiophene) and a polyanion comprises: a process of polymerizing 3,4-dialkoxythiophene in the presence of a polyanion by using an oxidizing agent in an aqueous solvent, in which polystyrene-sulfonic acid having a specific molecular weight and a sulfonation degree or polystyrenesulfonic acid having another specific sulfonation degree is used as the polyanion, or in which pH of the reaction mixture during the reaction is set to a specific value.

With respect to a photoelectric conversion device comprising a semiconductor electrode composed of semiconductor fine particles and a metal film to be an opposite electrode, a polyethylene dioxythiophene (PEDOT) / polystyrenesulfonic acid (PSS) film is formed by spin coating on a transparent electrode of a metal oxide such as ITO to remarkably improve the adhesion property of the metal film to the metal oxide film and the pollution by the different type metal of the metal film to be the opposite electrode can be prevented in the photoelectric conversion device. Further, a semiconductor electrode composed of semiconductor fine particles can be formed well on the metal oxide film by low temperature process while elution of the metal oxide film is prevented to obtain the photoelectric conversion device.

The invention provides a method for preparing magnetic ferroferric oxide / conductive polyaniline light-weight composite hollow microspheres, which relates to a method for preparing a magnetic ferroferric oxide / conductive polyaniline composite material. The invention solves the problems of high density and easy agglomeration of the traditional magnetic nanometer particle / conductive polymer composite material. The method comprises the following steps of: regulating ferrous chloride and ferric chloride solutions to be alkaline, adding sodium dodecyl benzene sulfonate and reacting to obtain ferroferric oxide; and modifying hollow glass microspheres by using poly(diallyldimethylammonium chloride) solutions after alkaline cleaning, then reacting the hollow glass microspheres with the ferroferric oxide, sequentially immersing obtained solid particles by using the poly(diallyldimethylammonium chloride) solutions and polystyrene sulfonic acid solutions, then adding the solid particles to aniline solutions, initiating polymerization by using ammonium persulfate, and washing and drying the solid particles to obtain the composite hollow microspheres. The composite hollow microspheres have both conductivity and magnetism, the density is 0.78-0.8g / cm<3>, and the composite hollow microspheres are not easy to agglomerate and are used for fields of military equipment stealth technology and civil anti-electromagnetic radiation.

Sorbent cartridges having a polystyrene sulfonate resin saturated with calcium ions for the performance of kidney replacement therapy are disclosed. Systems and methods having or using a sorbent cartridge, a dialyzer, control components, a cartridge having a polystyrene sulfonate resin, and fluid reservoirs configured to be of a weight and size suitable to be worn or carried by an individual requiring treatment are disclosed. A system for performing kidney replacement therapy has a controlled compliance dialysis circuit, where a control pump controls the bi-directional movement of fluid across a dialysis membrane. The system provides for the monitoring of an inlet and outlet conductivity of the sorbent cartridge to quantify or monitor the removal of urea by the sorbent cartridge.

There is disclosed an organic electro luminescence display device comprising a two-dimensional array of pixels comprising organic electro luminescence elements capable of emitting a of color or different plural colors, each of the organic electro luminescence elements being provided with an anode, a cathode, a polymeric luminescence layer located between the anode and the cathode, and a hole injection layer. The hole injection layer is constituted by solid matters containing a donor molecule comprising polythiophene and / or a derivative thereof, and an acceptor molecule comprising polystyrenesulfonic acid and / or a derivative thereof, a concentration of sulfate ion in the hole injection layer is 125 ppm or less, and components having a molecular weight of 110,000 or less is 35% or less based on an entire solid matters, the molecular weight being converted as sodium polystyrenesulfonate in an aqueous gel permeation chromatography measured by using UV of 254 nm in wavelength.

The invention relates to a dual-layer perovskite light emitting diode and a preparation method therefor. The dual-layer perovskite light emitting diode comprises the following components from the bottom up separately: ITO conductive glass is used as a positive electrode; a layer of poly 3, 4-ethylenedioxythiophene-polystyrolsulfon acid (PEDOT-PSS) with a thickness of about 20nm is used as a hole transport layer; a dual-layer perovskite light emitting layer is prepared by a spin-coating method in two times; the adopted dual-layer perovskite light emitting layer can be perovskite with different halogen ratios; a layer of calcium-doped zinc oxide (Ca:ZnO) with the thickness of about 50nm is spin-coated on the perovskite layer to be used as an electron transport layer; and finally metal calcium and aluminum are evaporated to be used as a negative electrode. According to the dual-layer perovskite light emitting diode and the preparation method therefor, on one hand, by regulating and controlling the Ca concentration in the Ca:ZnO, an optimal band gap is obtained, so that the barrier between the electron transport layer and the perovskite is reduced, and the cut-in voltage of the light emitting diode is lowered consequently, and the light emitting efficiency and internal quantum efficiency of the light emitting diode are improved at the same time; and on the other hand, by regulating the halogen ratios in the perovskite, light emission with different colors can be realized.

The invention relates to a flexible polymer solar battery of an anode layer of a metal grid, which comprises a flexible substrate, an anode layer, a hole transport layer, an active layer, an electron transfer layer and an Al electrode cathode and is characterized in that the anode layer is made from one or more of composition metal wire grid materials of Ag, Cu, and Ni. In the solar battery, a silver, copper and nickel (Ag: Cu: Ni) metal grid / LiF combined electrode is used as the anode; compared with the battery prepared by a common flexible substrate ITO electrode, the flexible solar battery prepared by taking P3HT / PCB as the active layer can show up better performance; after a layer of lithium fluoride (LiF) layer with the thickness of 2nm is added between the Ag: Cu: Ni metal grid and the polythiophene derivative doped polystyrolsulfon acid (PEDOT: PSS) layer, the film formation of PEDOT: PSS on the surface of the anode is improved, the balance between the hole and the electron transport is enhanced, and compared with the battery with the common flexible substrate ITO electrodes, the energy conversion efficiency is obviously improved.

The invention provides a conducting-polymer dipped and coated lithium-ion battery composite-electrode material and a preparation method thereof. A high-polymer conducting polymer is coated on the lithium-ion battery electrode material of the composite electrode material, the conducting polymer is the conducting polymer which is easily dispersed into an aqueous solution, and the aqueous solution of dispersants, such as polystyrolsulfon acid and the like is used as a dispersing medium. The composite electrode material is prepared through the following steps of: dipping a lithium-ion anode material or cathode material into the aqueous solution of the high-polymer conducting polymer, and obtaining the surface-coated lithium-ion battery composite-electrode material through dipping and coating processing. The composite electrode material has cheap preparation raw materials, the surface of the novel composite electrode material is uniformly coated, and the composite electrode material has the advantages of high specific capacity, high charging and discharging efficiency and long cycling life. Compared with the prior art, the preparation method of the composite electrode material has the advantages of simple process, low cost, good effect and green and environment-friendly production process, is easy for industrial popularization and is convenient for large-scale industrialized production.

The invention discloses a preparation method of a PEDOT / PSS dispersion liquid. The preparation method of the PEDOT / PSS dispersion liquid comprises the following steps: preparing a first PSS dispersion liquid by adopting polystyrolsulfon acid with the weight-average molecular weight of 2000-50000, preparing a second PSS dispersion liquid by adopting polystyrolsulfon acid with the weight-average molecular weight of 50000-1000000, and uniformly mixing the first dispersion liquid with the second dispersion liquid, so that the PEDOT / PSS dispersion liquid is obtained. The PEDOT / PSS dispersion liquid has high conductivity, solid content of the obtained PEDOT / PSS dispersion liquid can be more than 4%, particle sizes of the PEDOT / PSS dispersion liquid are in bimodal distribution, two peaks are below 50 nanometers and more than 50 nanometers respectively, the solid content can be increased to more than 4%, concentration is high, and viscosity is low, so that the characteristics of good film forming property and high conductivity are realized, and the impregnation requirement of a high pressure solid capacitor can be met. The invention also discloses a preparation method of the high pressure solid capacitor by adopting the preparation method of the PEDOT / PSS dispersion liquid.

To improve adhesive properties between an electrically conductive polymer membrane and a solid electrolyte membrane to each other, and thus to ensure the operation of an electrically conductive polymer actuator which effects a bending motion is aimed.The bendable electrically conductive polymer actuator of the present invention is an electrically conductive polymer actuator having a laminate structure of: a first organic polymer including at least one or more of a vinylidene fluoride / hexafluoropropylene copolymer, polyvinylidene fluoride, a perfluorosulfonic acid / PTFE copolymer, polymethyl methacrylate, polyethylene oxide, and polyacrylonitrile; a solid electrolyte membrane including a mixture with an ionic liquid; and an electrically conductive polymer membrane including a mixture of polyethylenedioxythiophene and polystyrene sulfonic acid on at least one face of the solid electrolyte membrane, in which a second organic polymer including a vinylidene fluoride / hexafluoropropylene copolymer is embedded in the electrically conductive polymer membrane surface in the state being dispersed.

The invention discloses a flexible transparent electrode and a manufacturing method of the flexible transparent electrode. The flexible transparent electrode is formed by compositing copper nanowires and poly (3, 4-ethylenedioxy group thiophene)-poly (styrene sulfoacid) (PEDOT: PSS) to form a conducting layer and attaching the conducting layer to a transparent polymer substrate. The flexible transparent electrode and the manufacturing method of the flexible transparent electrode solve the problems that a copper nanowire film is poor in stability and large in roughness, and the combination force between the copper nanowire film and the flexible substrate is poor. A copper nanometer wire and PEDOT: PSS composite film has the advantages of being high in conductivity, high in light transmittance, good in flexibility and the like. The obtained flexible transparent electrode has good application value in image sensors, solar cells, liquid crystal displays, organic electroluminescence displays, touch screen panels and the like.

The invention relates to a preparation method of a flexible tensile strain type sensor and belongs to the technical field of sensor preparation. The preparation method concretely comprises four steps including flexible receiving set substrate preparation, electrostatic spinning solution preparation and filling into spinning needle tubes, distortion structure micro-nanometer fiber preparation by a electrostatic spinning method and sensor performance test: an elastic macromolecule material substrate is fixedly arranged on a glass sheet, and then, the glass sheet is placed on an aluminum foil of a power supply negative electrode; PVP (polyvinylpyrrolidone) ethanol solution of PEDOT / PSS (poly-3,4-ethylenedioxythiophene / polystyrolsulfon acid) blended with DMSO (dimethyl sulfoxide) is prepared as spinning solution and is filled into spinning needle tubes; distortion structure micro-nanometer fibers are prepared by selecting a spinning spraying head reciprocating linear motion type electrostatic spinning device; and the prepared sensor is subjected to performance test. The preparation method is simple, the principle is reliable, the preparation cost is low, the product performance is good, the operation is simple and convenient, the yield is high, and the environment is friendly.

The invention belongs to the technical field of polymer solar cells and particularly relates to a reciprocal form electrode polymer solar cell using TiO2 as an electronic transmission layer, CuPc as a cavity transmission layer and a preparation method thereof. The method includes the steps of: using sol-gel technology to grow a layer of uniform and compact nanocrystal titanium dioxide (TiO2) film on an ITO glass substrate, then spin-coating a layer of P3HT:PCBM solution dissolved by dichlorobenzene, after annealing, using thermal evaporation to grow a layer of CuPc with certain thickness and finally evaporating Au electrode. The polymer solar cell prepared by utilizing the method solves two problems of the traditional polymer solar cell, namely that the mixed solution of 3, 4-EDOT and polystyrolsulfon acid corrode the surface of ITO glass, and the excessive thinness of cathode buffer layer LiF causes the operating process to be difficult to be controlled accurately.

The invention provides two preparation methods of a high-water-stability conductive poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) composite electrode. One preparation method comprises the steps of adding PEDOT:PSS into a polyvinyl alcohol solution, directly drippingly coating the mixed solution on the electrode surface, or adding multi-wall carbon nanotubes, carboxyl functionalized graphene and cytochrome c into the mixed solution for further modification to obtain the PEDOT:PSS composite electrode having excellent properties; and the other preparation method comprises the steps of grafting acrylic acid on EDOT, carrying out copolymerization of EDOT and EDOT-AA, dispersing the obtained copolymer into a sodium polystyrenesulfonate solution, and directly drippingly coating the P(EDOT:EDOT-AA):PSS dispersion liquid onto the electrode surface. The preparation methods solve the problems that the PEDOT:PSS composite electrode is quite easily expanded, absorbs moisture and is degraded in a water solution; and the prepared composite electrode has the advantages of excellent water stability, low preparation cost, simple process and the like.

Using a mixture of (BAYTRON P) of PEDT (polyethylene dioxythiophene) and PSS (polystyrene sulfonic acid) as a hole transportation material and using water and ethanol as polar solvents, a coating composition having a contact angle of 35 degrees or smaller with respect to an ITO layer is obtained. The coating composition is then poured for coating upon exposed surfaces of first electrodes (ITO) 4R, 4G and 4B enclosed by barrier walls 6. Thus applied coating composition uniformly spreads all over the first electrodes 4R, 4G and 4B. As the coating composition naturally dries at a room temperature for about fifteen seconds, the solvents are removed from the coating composition.

The invention provides water-soluble poly(3,4-ethylenedioxythiophene) and a preparation method for a conductive coating thereof. The method comprises the following steps of: adding 3,4-ethylenedioxythiophene and an oxidant into the aqueous solution of the copolymer of sodium styrene sulfonate and an allyl monomer, regulating a pH value to be 1 to 5 by using a sulfuric acid, and polymerizing the mixture at the room temperature for 16 to 72h to obtain the water-soluble poly(3,4-ethylenedioxythiophene), wherein the oxidant may be ammonium persulfate, potassium persulfate or sodium persulfate; and the allyl monomer may be an acrylic monomer, a methacrylates monomer, hydroxyethyl acrylate , hydroxyethyl methacrylate, polyethylene glycol methacrylate or styrene. The electrical conductivity of the prepared water-soluble poly(3,4-ethylenedioxythiophene) is higher than that of the poly(3,4-ethylenedioxythiophene) generally using a polystyrene sulfonate acid as a dopant. The conductive coating is obtained by mixing the prepared water-soluble poly(3,4-ethylenedioxythiophene) and other water-based emulsion coatings or water-soluble polymers, and has the characteristics of high transparency and high electrical conductivity.

The invention provides a composite electrode material for a lithium ion battery. The composite electrode material includes an electrode material and a conductive polymer. The conductive polymer coats the surface of the electrode material with a thickness of several nano-meter level. The electrode material is a positive electrode material or a negative electrode material, and the conductive polymer tends to disperse in an aqueous solution or an organic solution in the presence of a doping and dispersing agent and a dispersing medium. The conductive polymer is selected from poly(3,4-ethylenedioxythiophene) (PEDOT), polyaniline (PANT), or polypyrrole (PPy), the doping and dispersing agent is polystyrene sulfonic acid (PSS), and the dispersing medium is water; or the conductive polymer is polyaniline(emeraldine salt), and the dispersing medium is xylene. A method for preparing the composite electrode material for a lithium ion battery is also provided.

The present invention discloses a novel method to improve the selectivities of polybenzoxazole (PBO) membranes prepared from aromatic polyimide membranes for gas, vapor, and liquid separations. The PBO membranes that were prepared by thermal treating aromatic polyimide membranes containing between 0.05 and 20 wt-% of a poly(styrene sulfonic acid) polymer. These polymers showed up to 95% improvement in selectivity for CO2 / CH4 and H2 / CH4 separations compared to PBO membranes prepared from corresponding aromatic polyimide membranes without a poly(styrene sulfonic acid) polymer.

To improve adhesive properties between an electrically conductive polymer membrane and a solid electrolyte membrane to each other, and thus to ensure the operation of an electrically conductive polymer actuator which effects a bending motion is aimed.The bendable electrically conductive polymer actuator of the present invention is an electrically conductive polymer actuator having a laminating structure of: a first organic polymer including at least one or more of a vinylidene fluoride / hexafluoropropylene copolymer, polyvinylidene fluoride, a perfluorosulfonic acid / polytetrafluoroethylene copolymer, polymethyl methacrylate, polyethylene oxide, and polyacrylonitrile; a solid electrolyte membrane including a mixture with an ionic liquid; and an electrically conductive polymer membrane including a mixture of polyethylenedioxythiophene and polystyrene sulfonic acid on at least one face of the solid electrolyte membrane, in which a second organic polymer including polyvinylphenol is embedded in the electrically conductive polymer membrane surface in the state being dispersed.

The invention provides a preparation method of a target compound nano particle, relating to a preparation method of target treatment integration compound nano particles. The invention solves the technical problems of poor carrier stability and small drug-loading quantity of the traditional antineoplastic drugs. The method comprises the following steps of: preparing a methanol solution of an integrated nano particle of a Fe3O4-HCPT@SiO2 coupling porphyrin photosensitizer; and stirring the methanol solution of the integrated nano particle of the Fe3O4-HCPT@SiO2 coupling porphyrin photosensitizer, N,N-dimethylformamide and target biomolecule or antitumor drug for reacting at the room temperature, and centrifuging to obtain the target compound nano particle. Polystyrolsulfon acid (PSS) and 10-hydroxycamptothecine are absorbed on a Fe3O4 magnetic nano particle through a self-assembly mode. The preparation method is high feasibility; the target compound nano particle has a physical target function of the magnetic nano particle and an active target function of further functionally modifying the biomolecule on the surface; and the medicine concentration can be increased under a dual-target function.

The invention provides a nano dispersed water-based conductive primer for a vehicle bumper and a preparation method thereof. The nano dispersed water-based conductive primer for the vehicle bumper is prepared by using water-based conductive polyaniline and a water-based conductive polymer of poly-3,4-ethylene dioxide thiophene-polystyrene sulfonate as conductive mediums and using CPP (Chlorinatedpolypropylene) modified polyurethane water-based resin as forming resin. The nano dispersed water-based conductive primer for the vehicle bumper can reach the conductance requirement even if less water-based conductive primer which is 1.3-14.2 percent in parts by weight of the total solid of the primer is added. The nano dispersed water-based conductive primer is nano dispersed water-based paint containing no harmful substances, such as toluene, xylene, and the like, thereby causing no pollution to the environment and being an environmental-friendly product.

The invention relates to a sulphonated monolayer graphite and polymer composition material and preparation and application thereof, in particular to a composite material which is formed by taking sulphonated monolayer graphite materials as a dopant and doping PEDOT (poly(3, 4-ethylene dioxy thiophene)). The composite material is prepared by the following compositions in weight portion: 0.1 to 100 portions of the sulphonated monolayer graphite materials and 0.1 to 100 portions of polymer. The sulphonated monolayer graphite and polymer composition material has high transmission and high conduction, can be dissolved into water and an organic solvent, and has cheap price. The sulphonated monolayer graphite and polymer composition material can be widely applied to organic photoelectric devices such as organic electroluminescent displays, organic solar cells and so on, and the sulphonated monolayer graphite and polymer composition material is hopeful to replace PSS (polystyrolsulfon acid)-PEDOT to become a novel hole transport material.

The invention provides a quantum dot light-emitting diode and preparation method thereof. The preparation method includes printing a mixed organic solution including poly(3,4-ethylenedioxythiophene) and polystyrolsulfon acid salt, an organic solution including a triphenyl diamine polymer, an organic solution including quantum dots and an organic solution including zinc oxide on a conductive substrate surface in sequence through an ink-jet printing method to obtain a primary quantum dot light-emitting diode; and depositing an electrode on the non-conductive substrate side of the obtained primary quantum dot light-emitting diode to obtain the quantum dot light-emitting diode. The preparation method realizes large-area simple preparation of quantum dot light-emitting diode by adoption of an ink-jet printing technology combined with a defined proportion of ink, and the operation is simple; and the ink used by the preparation method contributes to improvement of printing resolution, ensures uniformity of printing, and facilitates electric conduction light emission of the diode.

An electrically conductive polymer composition contains an electrically conductive polymer obtained by using a polymer in the form of cations composed of repeating structural units of 3,4-ethylene dioxythiophene and polystyrene sulfonic acid as anions and further contains naphthalene sulfonic acid as an additive. A solid electrolytic capacitor 101 or a surface-mount transmission line element 102 has a polypyrrole conductive polymer layer 3 as a first solid electrolyte and a poly(3,4-ethylene dioxythiophene) conductive polymer layer 4 as a second solid electrolyte.

A polarizing film comprising an antistatic coating layer is provided. The coating layer contains polyethylene dioxythiophene (PEDOT) doped with polystyrenesulfonate (PSS), a curable resin, a hydroxyacrylate compound, a cellulose compound and a photopolymerization initiator. The coating layer has good adhesion to a triacetyl cellulose film and a pressure-sensitive adhesive (PSA) layer. The polarizing film is advantageous in terms of transparency, surface resistance and moisture resistance. The use of the polarizing film prevents malfunction of a liquid crystal display (LCD) associated with static electricity.

A capacitor whose electrical properties can be stable under a variety of different conditions is provided. The solid electrolyte of the capacitor is formed from a combination of an in situ polymerized conductive polymer and a hydroxy-functional nonionic polymer. One benefit of such an in situ polymerized conductive polymer is that it does not require the use of polymeric counterions (e.g., polystyrenesulfonic anion) to compensate for charge, as with conventional particle dispersions, which tend to result in ionic polarization and instable electrical properties, particularly at the low temperatures noted above. Further, it is believed that hydroxy-functional nonionic polymers can improve the degree of contact between the polymer and the surface of the internal dielectric, which unexpectedly increases the capacitance performance and reduces ESR.

Antimicrobial and contraceptive compositions and methods which prevent and / or reduce the risk of transmission of sexually transmitted diseases through sexual activity as well as prevent and / or reduce the risk of pregnancy are provided. The compositions contain (1) a matrix-forming agent, (2) a bio-adhesive agent, (3) a buffering agent, (4) optionally a humectant, (5) optionally a preservative, and (6) water; wherein the composition is suitable for application within the vagina; wherein the compositions form a semisolid matrix on contact with ejaculate (thereby trapping ejaculated microbes and spermatozoa); wherein the composition causes hardening of cervical mucus (thereby decreasing the probability of sperm entry); wherein the composition forms a bio-adhesive layer over vaginal surfaces (thereby preventing or reducing the risk of contact of STD-causing microbes with the vaginal surfaces); wherein the composition maintains an acidic vaginal pH of less than about 5 in the presence of semen ejaculated from the male; and wherein the composition does not significantly impair the natural microbiological balance within the vagina. The antimicrobial and contraceptive compositions may also contain additional antimicrobial and / or contraceptive agents (e.g., nonoxynol-9, octoxynol-9, benzalkonium chloride, phosphorylated hesperidins, sulfonated hesperidins, polystyrene sulfonates, substituted benzenesulfonic acid formaldehyde co-polymers, H2SO4-modified mandelic acids, povidone iodine, itraconazole, ketoconazole, metronidazole, clotrimazole, fluconazole, teraconazole, miconazole, tinidazole, iconazole, chloramphenicol, nystatin, cyclopiroxolamine, and the like).

An energy charge storage device, particularly from the group consisting of super capacitor, a hybrid electrochemica capacitor, a metal hydride battery and a fuel cell, comprising a first and second electrode and an electrolyte wherein the electrolyte comprises a printable polyelectrolyte e.g. polystyrene sulfonic acid (PSSH). The present invention also refers to methods of obtaining such energy storage device.

A dispersion that contains an intrinsically conductive polythiophene formed via poly(ionic liquid)-mediated polymerization is provided. Without intending to be limited by theory, it is believed that a thiophene monomer can polymerize along the chains of a poly(ionic liquid). In this manner, the poly(ionic liquid) may act as a template for polymerization to provide a particle dispersion that is substantially homogeneous and stable. Such dispersions may be employed in an electrolytic capacitor as a solid electrolyte and / or as a conductive coating that is electrical communication with the electrolyte. Regardless, the dispersion may be more easily and cost effectively formed and incorporated into the structure of the capacitor. Moreover, due to the presence of the ionic liquid, the dispersion is conductive and does not require the addition of conventional dopants, such as polystyrene sulfonic acid. For example, the dispersion may have a specific conductivity, in the dry state, of about 1 Siemen per centimeter (“S / cm”) or more, in some embodiments about 10 S / cm or more, in some embodiments about 20 S / cm or more, and in some embodiments, from about 50 to about 500 S / cm.

The invention discloses stretchable transparent conductive hydrogel and a preparation method thereof. The conductive hydrogel structure is formed by coating a conductive polymer with a cross-linked polymer network. The cross-linked polymer network can be polyacrylamide (PAAm) or polyacrylic acid (PAA); the conductive polymer is poly(3,4-ethylenedioxythiophene)-polystyrene sulfonic acid (PEDOT:PSS). The hydrogel is prepared by a three-step synthesis method, which comprises the following steps: 1) freezing a mixed solution of PEDOT:PSS and ethylene glycol to obtain a PEDOT:PSS pre-reaction solution; 2) adding a cross-linked polymer network monomer, an initiator, a catalyst and an accelerator into the pre-reaction solution, and then carrying out thermal polymerization; and 3) finally, soaking the thermal polymerization product in a sulfuric acid solution to obtain the stretchable transparent conductive hydrogel. The preparation method can obtain the conductive hydrogel with excellent comprehensive performance, and the specific performance is high conductivity, high light transmittance, good stretchability, smooth surface, adjustable shape and thickness and the like.