38 results about "Polystyrene sulfonate" patented technology

The invention provides a diaphragm and a preparation method thereof and a lithium ion battery, the diaphragm comprises a base membrane layer and a composite functional layer, the composite functional layer comprises hydrophobic SiO2 aerogel modified by a hydrophobic agent, a conductive ion polymer and a solid electrolyte, and the composite functional layer respectively accounts for 3-12wt%, 0.5-1.0 wt% and 0.5-1.5 wt% of the total mass of the diaphragm; the hydrophobic agent comprises trimethylchlorosilane, hexamethyldisilazane, perfluorooctyltriethoxysilane, polyvinylidene fluoride, polydimethylsiloxane and the like, the conductive ionic polymer comprises polyvinylpyrrolidone, lithium polymethacrylate, lithium polystyrene sulfonate, polyacrylamide and the like, and the solid electrolyte comprises lithium lanthanum titanium oxide, lithium lanthanum zirconium oxide, lithium lanthanum zirconium tantalum oxide and the like. The wettability is improved by the high porosity of the hydrophobic SiO2 aerogel, the stability and strong conductivity of a physical conductive network of the solid electrolyte and the ion affinity and amphoteric binding capacity of the conductive ion polymer are optimized, the electrochemical performance and thermal stability of the interface are optimized, and comprehensive optimization of the thermal-electric-interface performance of the diaphragm is realized through combination.

The invention discloses an electromagnetic shielding film as well as a preparation method and application thereof. The electromagnetic shielding film comprises the following components: InZnSeyC and a conductive polymer, the conductive polymer is prepared from poly (3, 4-ethylenedioxythiophene) and polystyrene sulfonate; the electromagnetic shielding film prepared by the invention has enough flexibility, bendability and self-supporting characteristic. The composite film can keep stable in structure without additional support, and has potential application prospects in the fields of 6G communication, high-frequency electromagnetic wave interference solving, health protection, flexible circuit boards and the like.

The application discloses a temperature-strain dual-function sensor for extracorporeal circulation system monitoring, and relates to the technical field of flexible electronics and biomedical engineering. The sensor adopts a three-layer stacking structure, and comprises, from top to bottom, a piezoresistive strain response layer based on a silver / graphene / poly(3,4-ethylenedioxythiophene):polystyrene sulfonate composite conductive film, a thermoplastic polyurethane nanofiber heat insulation isolation layer and a temperature sensitive layer based on a graphene / poly(3,4-ethylenedioxythiophene):polystyrene sulfonate composite conductive hydrogel. The temperature-strain dual-function sensor for extracorporeal circulation system monitoring prepared by the application exhibits high sensitivity and fast response characteristics in temperature and strain sensing, and simultaneously exhibits excellent cycle stability and long-term reliability under repeated deformation.

Described is a hydrogel having both an ion-conductive region based on an acrylic polymer and an electrically conductive region of poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS). In addition, described is a hydrogel to which poly(ethylene glycol) (PEG) or poly(ethylene glycol) methyl ether (PEGME) is added to improve the water resistance (or durability) of the hydrogel.

The invention provides a high-molecular polymer as well as a preparation method and application thereof, the preparation method of the high-molecular polymer comprises the following steps: S1, carrying out RAFT polymerization reaction on polycaprolactone and sodium 4-styrenesulfonate to obtain a PCL-b-PSSNa block copolymer; s2, the PCL-b-PSSNa block copolymer and a chain extender are subjected to a chain extension reaction, and the high-molecular polymer is obtained. According to the invention, crystalline polycaprolactone and sodium 4-styrenesulfonate are subjected to RAFT polymerization, a sodium polystyrenesulfonate block with higher glass transition temperature (higher modulus) can be introduced, and the sodium polystyrenesulfonate block can be used as a physical crosslinking point, so that the elastic modulus of the material can be remarkably improved; the material has high load capacity and a wide temperature window while having rapid thermal response, and overcomes the problem of easy instability.

The application relates to the technical field of high polymer material preparation, and particularly discloses a flexible high polymer material with glucose response, a preparation method thereof and application of the flexible high polymer material in preparation of a biosensor. The preparation method of the flexible high polymer material with glucose response comprises the following steps: S1. reacting a prepolymer with a polyhydric alcohol to obtain a copolymer; S2. dissolving the copolymer with an organic solvent, then adding hydroxylated carbon nanotubes, poly(3,4-ethylenedioxythiophene) and polystyrene sulfonate, uniformly stirring, and then performing ultrasonic treatment; after the ultrasonic treatment is completed, the reaction product is poured into a mold, and the flexible high polymer material with glucose response is obtained after solidification. The flexible high polymer material with glucose response has good glucose, pH and temperature multi-response performance, and also has good mechanical properties.

The present application relates to the technical field of electrically strippable adhesive, in particular to an electrically strippable adhesive composition, which comprises a base polymer resin, an intrinsic conductive polymer, an ionic compound, a crosslinking agent and a solvent; the base polymer resin comprises an acrylate copolymer with polar functional groups and a phenoxy resin; the intrinsic conductive polymer is one or more of poly(3,4-ethylenedioxythiophene)-polystyrene sulfonate (PEDOT:PSS), polyaniline or polypyrrole. The present application overcomes the defects of the prior art through the synergistic effect of the base polymer resin, the intrinsic conductive polymer and the low content ionic compound, and provides an electrically strippable adhesive composition with high strength, high stability, low voltage fast response and clean stripping, which is particularly suitable for precise manufacturing processes in the fields of semiconductors and displays.

A conducting composition includes a topological polymer (e.g., a polyrotaxane polymer) and poly(3,4-ethylene-dioxy thiophene):polystyrene sulfonate (PEDOT:PSS). Devices may include a conducting layer including the conducting compositions, e.g., a device comprising a conducting layer, wherein the conducting layer includes a polyrotaxane polymer and a PEDOT:PSS array. The devices are useful in bioelectronics, including high-resolution electrophysiological monitoring of deformable tissues and localized neuromodulation for high-precision control of individual muscle activities.

The application discloses a flexible lithium manganate positive pole piece and a preparation method, and belongs to the technical field of lithium ion batteries. The carbon nanofiber membrane with polystyrene sulfonate grafted on the surface and the lithium manganate particles with polystyrene sulfonate adsorbed on the surface are assembled into a filter cake layer in close contact through vacuum filtration, then aniline solution slowly permeates through the filter cake layer and is adsorbed under the condition of no oxidant, so that the aniline monomers are uniformly adsorbed on the polystyrene sulfonate template to form a monomer reaction layer with uniform thickness, and in-situ limited polymerization is carried out, after polymerization and drying, the obtained composite membrane is subjected to gradient heating and hot pressing treatment, rearrangement of polyaniline molecular chains and further compaction at the interface between the carbon fiber and the lithium manganate are realized, and the flexible self-supporting positive pole piece with a positive active film layer free of metal current collectors, a three-dimensional conductive network and a relatively stable conductive state is obtained. The application is suitable for the fields of flexible lithium ion batteries, wearable electronic devices and solid-state lithium batteries.

Provided is an electrically conductive elastomer with high stretchability and high durability. A method of synthesizing an electrically conductive elastomer includes (a) preparing a eutectic solvent by mixing quaternary ammonium salt and organic acid, and (b) adding and blending the eutectic solvent with poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS), a photocuring agent, and a crosslinker and performing photopolymerization.

One aspect of the present invention is concerned with a composition for the manufacture of a hydrogel material. The composition has N-(3-Sulfopropyl)-N-methacroyloxyethyl-N,N-dimethylammonium betaine (DMAPS) serving as a backbone of the hydrogel material, poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS) serving as a conductive component, and at least one crosslinking agent.

A solar cell includes a first layer including a silica material, a second layer including an indium tin oxide material, and a third layer including a chlorophyll-doped poly(3,4-ethylenedioxythiophene):polystyrene sulfonate (PEDOT:PSS@Chl) material. The solar cell further includes a fourth layer including a silver material, and a fifth layer including a silica material. The PEDOT:PSS@Chl material includes chlorophyll in an amount of 4 to 12 percent by weight (wt. %) based on a total weight of the PEDOT:PSS@Chl material. The PEDOT:PSS@Chl material has a surface area of 500 to 550 meter square per gram (m2 / g). The third layer has a thickness of 30 to 70 nanometer (nm).

According to the present disclosure, a conductive polymer composite and a strain gauge are provided. The conductive polymer composite includes poly(3,4-ethylenedioxythiophene):polystyrene sulfonate and waterborne polyurethane, and the conductive polymer composite is homogeneous. The strain gauge includes a substrate and a strain sensitive layer. The substrate has a surface, and the strain sensitive layer is connected to the surface of the substrate. The strain sensitive layer is made of the aforementioned conductive polymer composite, and the strain sensitive layer has at least four separations arranged in a staggered way and forms bow-like structures, which makes the strain sensitive layer deform more in a first direction than a second direction perpendicular to the first direction.

The invention relates to a process for the preparation of poly(3,4-ethylenedioxythiophene):polystyrene sulfonate (PEDOT:PSS) particles comprising at least the following steps: a) providing a mixture comprising poly(3,4-ethylenedioxythiophene) and polystyrene sulfonate in at least an aqueous solvent; b) forming one or more PEDOT:PSS droplets by introducing the mixture from process step a) into an organic solvent A, wherein the aqueous PEDOT:PSS mixture forms the inside of the droplet and the organic solvent A forms the outside of the droplet; c) contacting the PEDOT:PSS droplets obtained from process step b) with a coagulation solution comprising a coagulation agent and at least one further solvent B, said coagulation solution having a density greater than the density of said organic solvent A and less than the density of the aqueous mixture of poly(3,4-ethylenedioxythiophene) and polystylene sulfonate; and d) coagulating the PEDOT:PSS droplets to PEDOT:PSS particles. Furthermore, the invention discloses spherical PEDOT:PSS particles which do not require further mechanical coagulation of the substance and the use of such particles, for example as cell culture microcarriers or as a suspended electrode.

An example of a multi-functional agent for three-dimensional (3D) printing includes carboxylated carbon nanotubes present in an amount ranging from about 0.5 wt % active to about 5.0 wt % active based on a total weight of the multi-functional agent; poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS) present in an amount ranging from about 0.1 wt % active to about 0.8 wt % active based on the total weight of the multi-functional agent; a co-solvent; and a balance of water.

The invention provides static conductive digital direct-injection ink and a preparation method thereof, and relates to the technical field of ink-jet printing. Comprising the following components in parts by weight: 8-15 parts of poly (3, 4-ethylenedioxythiophene) / polystyrene sulfonate; 0.3 to 1 part of chitosan quaternary ammonium salt; 10 to 20 parts of soft type waterborne polyurethane; 10-23 parts of water-based pigment concentrated slurry; and 4-10 parts of an auxiliary agent. Wherein the auxiliary agent comprises the following components in parts by weight: 4-7 parts of a humectant; 0.4 to 1.0 part of a non-ionic surface active agent; 0.1 to 0.5 part of a defoaming agent; 0.1 to 0.5 part of a preservative; and 0.1 to 0.5 part of a thickening agent. The conductive digital direct-injection ink disclosed by the invention is low in surface resistance, can effectively eliminate static electricity generated by friction between a fabric and equipment in a printing process, and can effectively improve printing quality and hand feeling.

The technology is based on a conducting, ferromagnetic ink made from, in an aqueous suspension: conducting nanopolymers, ferromagnetic nanoparticles, an adhesion promoter and optionally, a surfactant and / or stabilizer. The ink is used to form reversible physical and electrical connections between e.g., rigid and flexible devices. In some aspects, the conducting nanopolymers are PEDOT:PSS (poly(3,4-ethylenedioxythiophene) polystyrene sulfonate) nanopolymers and the magnetic nanoparticles are iron oxide nanoparticles. The ink, which may be magnetic, is used to form solid, flexible, ferromagnetic conducting designs or nodes which may also be magnetic. The flexible, ferromagnetic conducting designs or nodes are used to form reversible magnetic electrical connections with devices such as potentiostats and data telemetry devices.

The application provides a lithium manganese iron phosphate positive electrode material and a preparation method thereof. The lithium manganese iron phosphate positive electrode material comprises a positive electrode material core and a coating layer coated on the surface of the positive electrode material core; the chemical general formula of the positive electrode material core is LiMn x Fe 1‑x PO4, wherein 0.5<=x<=0.8; the coating layer comprises an inner coating layer and an outer coating layer which are sequentially stacked, and the inner coating layer is arranged in contact with the positive electrode material core; the inner coating layer comprises a carbon layer; and the outer coating layer comprises poly (3,4-ethylenedioxythiophene) : polystyrene sulfonate and silver nanowires. The silver nanowires can improve the conductivity of the lithium manganese iron phosphate positive electrode material; and the poly (3,4-ethylenedioxythiophene) : polystyrene sulfonate has flexibility and can relieve the volume expansion of the lithium manganese iron phosphate active material during the charging and discharging process. The lithium manganese iron phosphate positive electrode material has the performance advantages of low resistance, high capacity, high compaction and high cycle.

The invention provides a composition for preparing a hole buffer structure of a flexible organic photoelectric device and application of the composition. The composition is prepared from the following raw materials in percentage by mass: 0.1 wt%-0.4 wt% of single-walled carbon nanotubes, 0.3 wt%-0.5 wt% of polystyrene sulfonate, 0.1 wt%-5 wt% of a P-type doping agent, 0.1 wt%-0.3 wt% of an anionic surfactant, 0.1 wt%-0.3 wt% of a stabilizer and the balance of a solvent, wherein the solvent comprises water; wherein the surface of the single-walled carbon nanotube has hydrophilic groups, and the polystyrene sulfonate is adsorbed on the surface of the single-walled carbon nanotube through a pi-pi conjugation effect and an electrostatic adsorption effect, so that the polystyrene sulfonate modified single-walled carbon nanotube is formed. A hole buffer structure formed on the basis of the composition has an adjustable work function, so that efficient hole injection and electron blocking are realized, the driving voltage of a device is remarkably reduced, the luminous efficiency is improved, the service life is prolonged, and meanwhile, excellent mechanical flexibility and low resistance characteristics are kept.

The invention discloses a flexible micro electrical stimulator capable of being wound and adhered to peripheral nerve tracts and a preparation method and application thereof, and relates to the technical field of crossing of neural engineering, bioelectronics and medical instruments. A first insulation layer, a first friction electrode layer, a middle isolation layer, a second friction electrode layer and a second insulation layer are assembled layer by layer; the first insulation layer and the second insulation layer are self-adhesion polyurethane layers, and the first friction electrode layer, the middle isolation layer and the second friction electrode layer are packaged in the first insulation layer and the second insulation layer; the first friction electrode layer is a gold foil, and the surface of the gold foil is electroplated with a PEDOT: PSS plating layer formed by a 3, 4-ethylenedioxythiophene monomer and polystyrene sulfonate; the second friction electrode layer is gold foil or aluminum foil. According to the invention, macro-scale contact-separation type friction power generation is realized through ultrasonic driving, and the device has good output performance, long-term stability and nerve stimulation effect.

The invention provides an anti-static polytetrafluoroethylene dust removal filter bag material and a preparation method thereof, and belongs to the field of filter materials for dust removal. The filter bag material is of a three-layer structure formed by sequentially laminating and compounding a dust facing surface layer, a conductive base cloth layer and an air purifying surface layer, the dust facing surface layer is prepared from the following raw materials in parts by weight: 85-95 parts of perfluoropolyether alcohol grafted polytetrafluoroethylene fibers and 5-15 parts of epoxy group modified fluorinated silicon dioxide; the conductive base cloth layer is prepared from the following raw materials in parts by weight: 50 to 60 parts of polytetrafluoroethylene fiber, 20 to 30 parts of poly (3, 4-ethylenedioxythiophene)-polystyrene sulfonate coated carbon fiber and 10 to 20 parts of acylating chlorination carbon nanotube; the gas purification surface layer is prepared from the following raw materials: 80 to 90 parts of polytetrafluoroethylene and perfluorinated sulfonic acid resin copolymer nanofiber and 10 to 20 parts of sulfonated reduced graphene oxide. Therefore, the anti-static performance, the dust removal performance and the filtering performance of the polytetrafluoroethylene dust removal filter bag are improved at the same time.

The application discloses a traditional Chinese medicine small-molecule conductive hydrogel for repairing nerves and a preparation method and application thereof, and belongs to the technical field of biomedical materials.The preparation method is as follows: firstly, mix tannic acid and 5-formyl-2-furan boronic acid in a buffer solution and adjust the pH value to neutral or weak alkaline; then introduce carboxymethyl chitosan and poly(3,4-ethylenedioxythiophene) / polystyrene sulfonate solution; and construct a double dynamic crosslinking network by using borate ester bonds formed by the tannic acid and the 5-formyl-2-furan boronic acid and Schiff base bonds formed by the carboxymethyl chitosan and the 5-formyl-2-furan boronic acid.The hydrogel has excellent injectability and self-healing property, can realize antioxidation and anti-inflammation of a damaged microenvironment and reconstruction of a bioelectric pathway in cooperation, and thus promotes nerve regeneration and conduction recovery.

Inverted polymer photovoltaic cell (or solar cell) comprising: - an anode; - a first anode interlayer (buffer layer) based on PEDOT:PSS [poly(3,4-ethylenedioxythiophene):polystyrene sulfonate]; - an active layer comprising at least one photoactive organic polymer as electron donor and at least one electron acceptor organic compound; - a cathode interlayer (buffer layer); - an anode; wherein a second anode interlayer (buffer layer) comprising at least one heteropolyacid and optionally at least one amino compound is interposed between said first anode interlayer (buffer layer) and said active layer. Said inverted polymer photovoltaic cell (or solar cell) shows good values of photoelectric conversion efficiency (power conversion efficiency - PCE) (η) and, in particular, good levels of adhesion between the different layers, more particularly between the active layer and said first anode interlayer (buffer layer).

The application discloses a hydrogel, a sensor and a preparation method and application thereof. The hydrogel is PEDOT:PSS / EMIM-Cl / Fc + PF6 ‑ The hydrogel comprises a poly 3,4-ethylenedioxythiophene: polystyrene sulfonate conductive polymer, 1-ethyl-3-methyl imidazole chloride and ferrocene hexafluorophosphate. The application can accurately control the inherent potential of the gel interface by doping 1-ethyl-3-methyl imidazole chloride and ferrocene hexafluorophosphate in the hydrogel, and realizes potential type analysis of various neurochemical molecules in the brain.

An oral care composition is disclosed, comprising 0.01 to 10% by weight of a deposited polymer and a polyhydroxy fatty acid amide surfactant of formula (I); wherein R 1 It is a C1-C4 alkyl or hydroxyl-substituted C1-C4 alkyl; R 2 It is a straight-chain or branched, saturated or unsaturated hydrocarbon chain having 15 to 21 carbon atoms, and a beneficial agent selected from optical agents, antimicrobial agents and mixtures thereof; wherein the deposited polymers include xanthan gum, sodium alginate, pectin, modified starch, gelatin, carrageenan, gellan gum, fenugreek gum, konjac gum, tragacanth gum, arabic gum, γ-polyglutamic acid, sodium heparin, copolymers of methyl vinyl ether and maleic anhydride, polyacrylic acid, polystyrene sulfonate, deoxyribonucleic acid, poly(allylamine), locust bean gum, guar gum, polyglycolic acid, polylactic acid, poly(glycolic acid-co-lactic acid), chitosan, humic acid, phytic acid, derivatives thereof or mixtures thereof:

The invention discloses a seawater-based Mg-air battery electrolyte and a preparation method and application thereof, and belongs to the technical field of electrolyte preparation, the electrolyte comprises a base solution and an electrolyte additive; the base solution is natural seawater, simulated seawater or sodium chloride brine; the electrolyte additive is polystyrene sulfonate, and the polystyrene sulfonate provides polystyrene sulfonate anions. According to the invention, polystyrene sulfonate anions are introduced into saline water and natural seawater as an electrolyte additive so as to regulate and control the corrosion rate of a magnesium anode in a magnesium-air battery. The PSS with the optimized mass ratio can promote formation of a Helmholtz layer in the chloride-deficient ion, the Helmholtz layer can construct a dynamic protection layer and can also achieve controllable updating of a magnesium anode, compared with Cl <-> and PSS, the PSS preferentially interacts with H2O and Mg < 2 + >, the content of free water is reduced, and diffusion of Mg < 2 + > is promoted in the discharging process. The effects jointly promote the corrosion auxiliary discharge process.

The invention belongs to the technical field of adhesive tapes, and particularly relates to an antistatic composition, an antistatic coating, an antistatic adhesive tape and a preparation method and application thereof. A conductive polymer material poly (3.4-ethylenedioxythiophene)-polystyrene sulfonate and a conductive filler carbon black powder are selected as basic antistatic agents, and an epoxy silane coupling agent and a polyphenol compound are subjected to a ring-opening reaction; the preparation method comprises the following steps: preparing an antistatic adhesive tape, mixing the antistatic adhesive tape with poly3.4-ethylenedioxythiophene-polystyrene sulfonate, acetylene-method conductive carbon black powder and blocked isocyanate to obtain an antistatic composition, coating a base material layer with the antistatic composition, carrying out high-temperature curing to obtain an antistatic coating, continuously coating the coating with an adhesive layer, and attaching a release film layer to obtain the antistatic adhesive tape. And after high-temperature, high-humidity and high-low-temperature cyclic aging tests, a better anti-static effect can still be kept.

The invention discloses an embedded intrinsic flexible stretchable transparent electrode and a preparation method thereof, and belongs to the field of electronic materials and information science and technology. The preparation method comprises the following steps: firstly, depositing sodium polystyrenesulfonate on a glass substrate, and annealing to obtain a water-soluble sacrificial layer film; secondly, modifying a poly (3, 4-ethylenedioxythiophene) / polystyrene sulfonate conductive polymer by adopting dimethyl sulfoxide, water-based ethyoxyl nonionic fluorocarbon and sulfonated sodium alginate, and then depositing the modified poly (3, 4-ethylenedioxythiophene) / polystyrene sulfonate conductive polymer on the layer; depositing silver nanowires and a transparent elastic polymer on the conductive polymer film step by step, and annealing and curing to obtain an elastic polymer film embedded with the silver nanowires and the conductive polymer; and finally, removing the sacrificial layer through a water phase and stripping to obtain the electrode. The electrode has the advantages of being low in surface roughness, high in transmittance, low in sheet resistance, high in quality factor, high in stretching rate of 100% or above, excellent in stretching cycle stability and the like, and has huge development potential in the fields of wearable electronic equipment, intelligent robots and the like.

The invention discloses an anode structure and a preparation method thereof, a light-emitting module and a display panel. The anode structure comprises a first conductive layer and a conductive polymer layer which are stacked, the first conductive layer comprises cuprous selenide, and the conductive polymer layer comprises poly (3, 4-ethylenedioxythiophene)-polystyrene sulfonate. In the anode structure, the stacked first conductive layer comprises cuprous selenide, and the conductive polymer layer comprises poly (3, 4-ethylenedioxythiophene)-polystyrene sulfonate. The Cu2Se conductive film has good conductivity, the Cu2Se nano material has better flexibility than ITO, the roughness is low, the surface of the anode is flat, the peak of the surface of the anode can be improved, and the local electric field can be improved. The anode structure has the advantages of excellent conductivity, high work function, high hole injection efficiency and low device power consumption.

The invention discloses a preparation method and application of a flexible electrode based on cooperation of gradient freezing and low-temperature salting-out, and the method comprises the following steps: S1, mixing poly (3, 4-ethylenedioxythiophene), polystyrene sulfonate, polyvinyl alcohol, carbon nanotubes and polyaniline according to a mass ratio of 4: 2: (0.06-0.18): (0.5-5), heating and stirring until the mixture is uniformly mixed, and obtaining an electrode material precursor; wherein the polyvinyl alcohol is used for forming a tough network, and the poly (3, 4-ethylenedioxythiophene), the polystyrene sulfonate, the carbon nanotubes and the polyaniline jointly form an electrochemical network; and S2, packaging the electrode material precursor in a mold, adopting a gradient freezing strategy and a low-temperature salting-out strategy to synergistically induce phase separation, and forming a multi-stage structure on a molecular self-assembly layer to obtain the flexible electrode based on gradient freezing and low-temperature salting-out synergy with good mechanical performance and electrochemical performance.