27 results about "Polyacetylene" patented technology

This invention relates to the field of lithium-ion battery technology, specifically to a silicon-carbon material, its preparation method, and its application. The silicon-carbon material includes a core and a coating layer covering at least a portion of the surface of the core. The core includes nano-silicon material. The coating layer includes a flexible conductive polymer layer and a carbon layer existing between the core and the flexible conductive polymer layer. The flexible conductive polymer layer includes a conductive polymer having a conjugated structure. The conductive polymer includes at least one of polyaniline, polypyrrole, polyacetylene, polythiophene, polyquinoline, polyfluorene, polybenzothiadiazole, and poly(p-phenylenevinylene). The mass ratio of the conductive polymer to the total mass of the carbon layer and the core is (0.05-0.2):1. This invention, by constructing a shell structure with a "carbon layer-flexible coating layer" on the core, enables the silicon-carbon material with this core-shell structure to solve the problems of volume expansion, poor conductivity, and SEI layer instability of silicon materials in lithium-ion batteries.

The application discloses a preparation method of high-adhesion carbon paper for fuel cells and relates to the technical field of fuel cells.The method comprises the following steps: performing cleaning treatment on carbon fibers to obtain carbon fiber precursors; performing modification treatment on the carbon fiber precursors to obtain modified carbon fibers; performing wet forming treatment on the modified carbon fibers to obtain carbon fiber base paper; placing the carbon fiber base paper in phenylacetylene to obtain carbon fiber paper precursors; performing heat preservation on the carbon fiber paper precursors to obtain carbon fiber paper; performing impregnation on the carbon fiber paper, and then performing solidification treatment and carbonization treatment to obtain the high-adhesion carbon paper for fuel cells.The preparation method simultaneously adopts polyurethane and carbon nanotubes to modify the carbon fibers, polyacetylene to modify the carbon fiber base paper and vinyltrichlorosilane to modify phenolic resin, and the high-adhesion carbon paper for fuel cells prepared by the method has high density and excellent heat conduction performance and electric conduction performance.

Disclosed are a cationic radical-type triazine-based polyacetylene, a preparation method thereof, and photocatalytic applications. The chemical structure is shown in Formula 3. The preparation method comprises the following steps: using 2,4,6-tris(4-pyridyl)-1,3,5-triazine shown in Formula 1 and propargyl bromide shown in Formula 2 as raw materials, without a catalyst or initiator, to directly prepare the cationic radical-type triazine-based polyacetylene Tz-IRPA-1 shown in Formula 3 in one step through a quaternization-induced in-situ polymerization reaction. The functional polymer prepared by the present invention has a simple process, requiring only a one-step reaction to in-situ prepare the non-metallic polymer catalyst Tz-IRPA-1. The prepared Tz-IRPA-1 is used in a photocatalytic cycloaddition reaction of an epoxy compound and CO2, exhibiting excellent heterogeneous photocatalytic activity under normal temperature and pressure conditions.

Medical electrode comprising a base body (101) on which an electrically conductive first layer (102) and a cover layer (103) are arranged, the cover layer comprising an overhang (107) which partially covers the first layer (102), and an electrically conductive second layer (105) which is arranged on the first layer (102), the second layer (105) comprising an electrically conductive polymer selected from the group consisting of a polyacetylene, a polyvinyl alcohol, a polyfluorene, a polyphenylene, a polyphenylene vinylene, a polypyrene, a polyazulene, a polynaphthalene, a polypyrrole, a polycarbazole, a polyindole, a polyazepine, a polyaniline, a polyacene, a polythiophene, a polythiophene vinylene, a poly-p-phenylene sulfide, a polypyridine or functionalized derivatives, precursors or mixtures thereof;wherein the top layer (103) further comprises a recess (108), wherein the second layer (105) is arranged exclusively within the recess (108), and wherein the outwardly facing surface of the second layer (105) is spaced apart from the outwardly facing surface of the top layer (103), leaving a free area within the recess (108).

The present invention relates to the field of ink additives, specifically an environmentally friendly antistatic LED-UV curing ink functional agent. The functional agent solves the problem of static electricity accumulation during long-term printing, and reduced ink adhesion caused by excessive addition of antistatic agents to UV inks when combating large amounts of static electricity, resulting in poor scratch resistance of the ink after curing, blurred printed layers, and reduced image quality. The functional agent comprises, by weight, 10-30 parts of a composite conductive nanomaterial, 6-12 parts of a resin, 20-40 parts of a silicone oil, 1-5 parts of a surfactant, and 10-20 parts of water. The composite conductive nanomaterial is prepared by stabilizing carbon nanotubes and iodinated polyacetylene by filling them with carbon nanotubes at a weight ratio of 1:1-1.2. The functional agent fills the carbon nanotubes with polyacetylene molecular chains, maintaining the function and structure of the long polyacetylene chains unaffected, thereby enhancing the antistatic agent's ability to derive static charges. This protects the ink from the effects of static electricity during long-term printing, thereby improving printing effects.

The invention relates to a modified conductive agent and a manufacturing method thereof, and an all-solid-state battery and a preparation method thereof. The modified conductive agent comprises a conductive agent core and a conductive polymer coating layer coated on at least part of the surface of the conductive agent core, and the conductive polymer is selected from at least one of polyaniline, polypyrrole, polythiophene, polyacetylene, polystyrene and polyphenylene sulfide. The modified conductive agent effectively isolates direct contact between an electrolyte and the conductive agent, so that the interface stability between the conductive agent and a sulfide electrolyte is effectively enhanced, the rate capability of an all-solid-state battery using the modified conductive agent is obviously improved, and the cycling stability is enhanced.

A cleaning device for clamps in a lithography apparatus includes a substrate having a front surface and a back surface opposite to the front surface, and a conductive layer provided on the front surface of the substrate. The conductive layer is configured to contact the clamp to dissipate the charge on the clamp and remove particles on the clamp via an electrostatic field generated between the conductive layer and the clamp. The conductive layer may include a conductive polymer. The conductive polymer may have a conductivity of at least about 1 S / cm. The conductivity of the conductive polymer is variable and can be adjusted to a desired value. The conductive polymer may include polyaniline, poly(p-phenylene), polythiophene, polypyrrole, poly(p-phenylene vinylene), trans-polyacetylene, combinations thereof, or derivatives thereof (e.g., polymer blends, copolymers, graft polymers, surface modifiers, surface treatment agents, additives, and / or fillers).

The invention relates to the technical field of sulfide solid-state batteries, in particular to a core-shell structure flame-retardant additive, a preparation method thereof and a sulfide solid-state battery. The core-shell structure flame retardant additive provided by the invention comprises a core material as well as a shell material carrier layer and a shell material polymer layer which sequentially coat the surface of the core material, the core material comprises a phosphorus flame retardant; the shell material carrier layer is prepared from one or more of sodium carboxymethyl cellulose, polyvinylidene fluoride, chitosan, polyacrylic acid, polyvinyl alcohol, sodium alginate, polymethyl methacrylate, carboxymethyl chitosan and carboxymethyl cellulose; the shell material polymer layer comprises one or more of polyaniline, polyvinylidene fluoride, polyethylene, vinylene carbonate, polyvinyl alcohol, polyacrylonitrile, polyether, polythiophene, polyacetylene and polypyrrole. The flame-retardant additive with the core-shell structure has the advantages that both electrochemical performance and safety can be considered, thermal response can be quickly carried out, the interface stability is good, toxic gas is diluted and released, and the engineering implementation is simple.

The invention relates to an intrinsic conductive solid aluminum electrolytic capacitor diaphragm and a preparation method thereof, and belongs to the technical field of aluminum electrolytic capacitors. The diaphragm is prepared from 50-80wt% of high-temperature-resistant fibrillated fibers, 10-30wt% of conductive fibers and 10-20wt% of adhesive fibers through a wet papermaking process. The high-temperature-resistant fibrillated fibers are selected from aramid fibers, polyacrylonitrile fibers or poly-p-phenylene benzobisoxazole (PBO) fibers, and are subjected to pulping treatment to form a micro-nano three-dimensional network skeleton, so that the diaphragm is endowed with excellent heat resistance and structural stability; the conductive fibers are selected from aluminum fibers, copper fibers, stainless steel fibers, carbon fibers, graphene modified fibers, polyacetylene fibers, polyaniline fibers, polypyrrole fibers and polythiophene fibers, a continuous conductive path is constructed, and the resistance of the diaphragm body is remarkably reduced; the bonding fibers are low-melting-point hot melting fibers, bonding nodes are formed through hot pressing, and the interlayer bonding force is enhanced. The diaphragm is suitable for solid-state capacitors in high-frequency and high-temperature scenes.

The invention relates to a catalyst activation method in a 1, 4-butynediol production process, which comprises the following steps: accurately weighing 1.2 g of a catalyst with the mass content of 4-10% and 20 mL of a formaldehyde solution with the mass concentration of 15-35% at normal temperature, putting into a three-necked bottle, and adjusting the pH value of the mixed solution to 4-7.5 by using Na2CO3-NaHCO3; introducing excessive acetylene, controlling the flow rate of the acetylene at 6 mL / min, raising the temperature to 65-85 DEG C, and activating the catalyst for 6-18 hours; after the activation of the catalyst is finished, nitrogen is introduced, and the reaction temperature is reduced to room temperature; carrying out reduced pressure suction filtration on the mixed solution, rapidly putting the activated catalyst into the three-necked bottle again, adding 20mL of formaldehyde solution with the mass concentration of 15-35%, and regulating the pH value to 6 by using Na2CO3-NaHCO3; and continuously introducing acetylene, controlling the flow rate of acetylene at 10 mL / min, raising the reaction temperature to 90 DEG C, and reacting for 2 hours to complete the acetylene hydroformylation reaction. In the process of synthesizing 1, 4-butynediol by an alkyne-aldehyde method, the conditions of the activation process of the catalyst are reasonably controlled, so that the conversion rate of cuprous acetylene is increased, the yield of a byproduct polyacetylene is reduced, and the alkyne hydroformylation performance of the copper-based catalyst is improved.

This disclosure provides a method for eliminating impurity peaks from a silver-based surface-enhanced Raman spectroscopy (SERS) substrate, comprising: placing the silver-based SERS substrate in an acetylene atmosphere and modifying the silver-based SERS substrate with the acetylene. The method includes: utilizing the reducing properties of the acetylene to reduce silver oxide on the surface of the silver-based SERS substrate; and utilizing the catalytic effect of silver to catalyze the acetylene to form a thin polyacetylene layer on the surface of the silver-based SERS substrate. This method eliminates interference from impurity peaks adsorbed on the silver substrate, improves the sensitivity of the silver-based SERS substrate, and addresses the problem of easy oxidation of nanosilver. Furthermore, the method features a simple operating process, extremely low cost, and is easily promoted and mass-produced.

The application discloses a polyacetylene curing agent, a resin composition and a laminated insulating film. The resin composition with excellent dielectric properties is prepared by selecting a polyacetylene curing agent with a specific structure and a thermosetting resin, and adding a curing accelerator and an inorganic filler in the resin system, so that a better thermal expansion coefficient is obtained, and the processing performance of the resin composition is improved. By selecting the polyacetylene curing agent with the specific structure, and R being a hydrocarbon chain segment, in the curing reaction with the thermosetting resin, R is substituted, and the resin composition with excellent dielectric properties can be obtained. In the resin composition, the acetylene group is introduced, so that the mechanical properties of the resin composition are enhanced, the thermal expansion coefficient is reduced, and the processing performance of the resin composition is improved.

The present invention relates to the technical field of battery separators, and discloses a preparation method and application of a solid electrolyte coated separator, comprising the following steps: (1) adding a dopant to a protonic acid solution, placing the solution in a 0-15°C ice-water bath and continuously stirring, and then sequentially adding a conductive polymer monomer, an oxide solid electrolyte, and a conductive polymer to obtain a mixed solution; the conductive polymer is one or more of polypyrrole, polyaniline, polythiophene, and polyacetylene; after drying, a coated modified solid electrolyte is obtained; and (2) the coated modified solid electrolyte and a binder are added to a solvent in a mass ratio of 4-6:1, mixed, and then coated on the surface of the separator. The present invention uses a conductive polymer to coat a modified solid electrolyte, and after coating the conductive polymer on the surface of the separator, a solid electrolyte coated separator with high ionic conductivity is obtained, which can enhance the energy efficiency of the battery while enhancing the safety performance of the battery by reducing the amount of liquid electrolyte used in the battery.

The invention relates to the fields of coordination chemistry and metal organic chemistry, and discloses a metal-only center chiral osmium carbon dragon complex as well as a preparation method and application thereof. According to the synthesis method, a chiral polyalkyne carbon chain (a carbon dragon ligand precursor containing a propargyl alcohol structure unit) with pure enantiomers is reacted with a metal osmium source OsCl2 (PAr3) 3, and the chirality of a carbon center on the polyalkyne carbon chain is transferred to the chirality of a metal center of the carbon dragon complex through a chiral transfer strategy, so that the one-pot preparation of the metal-center-only chiral osmium carbon dragon complex is realized. The synthesis method has the characteristics of simplicity and convenience in operation, easiness in separation, mild reaction conditions, easiness in obtaining of raw materials, good universality of reactants and the like. And meanwhile, the obtained metal-center-only chiral osmium carbon long complex can react with various reagents such as m-chloroperoxybenzoic acid / sulfur powder / tin powder / cuprous chloride / silver tetrafluoroborate, phenanthroline / triphenylphosphine gold chloride / acetonitrile / pyridine / imidazole and the like, so that further derivatization is realized, and a series of brand new metal-center-only chiral osmium carbon long complexes are obtained. The metal-only center chiral osmium-penta-oxa three-membered ring complex provided by the invention can be used for efficiently catalyzing an asymmetric Michael addition reaction of indole and an alpha-hydroxyl-alpha ', beta'-unsaturated ketone compound.

The invention provides a spiral polymer with an acid / alkali response multiple chiral switching function as well as a preparation method and application of the spiral polymer. The helical polymer is prepared by combining polyacetylene with an acid-base responsive Rhodol structure; under the condition that different acids and alkalis are added, the helical polymer can induce to generate multiple reversible switching chiral optical states. The helical polymer prepared by the technical scheme of the invention can be induced to generate as many as five chiral optical states under the addition of different acids and bases, the switching quantity of the chiral optical states is far higher than that of 2-3 optical chiral states in the prior art, and particularly, the switching reversibility of the chiral states is good.

A reticle stage cleaning apparatus for a reticle stage jig in a lithographic apparatus, comprising: a substrate having a front side and a back side opposite the front side; and a conductive layer disposed on the front side of the substrate. The conductive layer is configured to contact the reticle stage clamp to dissipate charge on the reticle stage clamp and remove particles on the reticle stage clamp via an electrostatic field generated between the conductive layer and the reticle stage clamp. The conductive layer may include a conductive polymer. The conductive polymer may have an electrical conductivity of at least about 1 S / cm. The conductivity of the conductive polymer is variable and can be tuned to a desired value. The conductive polymer may include polyaniline, polyparaphenylene, polythiophene, polypyrrole, polyparastyrene, trans-polyacetylene, combinations thereof, or derivatives thereof (e.g., polymer blends, copolymers, graft polymers, surface modifiers, surface treatments, additives, and / or fillers).

Methods, systems, and devices for depositing carbon conducting films by atomic layer deposition are described. For instance, a device may react a first precursor with a base material to form a carbon compound on a material, where the first precursor is an acetylene, a diacetylene, a tri-acetylene, a polyacetylene, an alkene, or an arene and includes at least one germanium, silicon, or tin. Additionally, the device may react a second, carbon-containing precursor with the carbon compound to form a layer on the base material.

The invention provides a polyacetylene selenide compound as well as a preparation method and application thereof, and belongs to the technical field of high polymer chemistry and material science. The preparation method comprises the following steps: under the catalysis of silver nitrate and ammonia water, carrying out polymerization reaction on a 1, 2-benzisoselenazole-3 (2H)-ketone compound and a terminal alkyne compound in a dichloromethane solvent, and after the reaction is finished, carrying out post-treatment to obtain the polyalkyne selenide compound. The preparation method disclosed by the invention is mild in condition, efficient in reaction, high in yield and novel in product structure, and realizes in-situ construction of a novel polyacetylene selenide structure through a two-component polymerization reaction for the first time; the polyacetylene selenide prepared by the invention has high molecular weight, good thermal stability and high refractive property, and has wide application prospects in the field of high refractive materials.

The invention discloses a method for rapidly and efficiently synthesizing highly conjugated trans-polyacetylene at normal temperature and pressure, and belongs to the technical field of polymer synthesis. The method comprises the following steps: dispersing poly (2-BF3-vinyl imidazolium salt) serving as a precursor polymer in a solvent at room temperature to form a uniform system, then adding an alkaline elimination agent, performing elimination reaction on 2-BF3-imidazole groups on a precursor molecular chain by controlling the reaction time, and performing post-treatment and purification to obtain the high-conjugation trans-polyacetylene. High-temperature reaction conditions are not needed, synthesis can be efficiently completed at the room temperature, and the conjugate structure of the product trans-polyacetylene is good in integrity. In addition, the method has the advantages of stable reaction system, safe and simple operation, easy separation of eliminated products, and suitableness for industrial large-scale production.

The invention relates to a polymer composite positive electrode material, a positive electrode plate and application in a high-rate battery, and the polymer composite positive electrode material comprises the following components in percentage by mass: 75-79% of a positive electrode active material, 1-5% of a polymer / ketjen black composite material, 8-12% of a binder and 8-12% of a conductive agent, a polymer in the polymer / ketjen black composite material comprises one or more of a polyvinyl dialkyl phenazine polymer and a polyethynyl dialkyl phenazine polymer. The polymer / ketjen black composite material is introduced through a wet-process homogenate adding process technology and is a high-molecular polymer and porous-structure ketjen black composite material with an anionic P-type doping reaction mechanism, so that the problem of valley voltage drop in the initial stage of high-rate discharge of the battery can be relieved, the overall dynamics of the battery is improved, and the battery performance is improved. The discharge performance of the secondary battery is effectively improved, the discharge specific capacity is high, and the discharge polarization voltage difference is low.

Mechanochromic impact sensors, which can further include some temperature sensing capability, are disclosed. The sensors are based on core-shell vesicles having a core and a shell material layer at least party surrounding the core. The core includes crystalline polyacetylene. The shell material layer includes silk fibroin. The sensors provide impressively large dynamic range, thereby allowing quantitative measurement of blunt force impact across a new range of forces with a single sensor.

The application discloses a perovskite photovoltaic device based on conductive glue bonding and a preparation method thereof. The perovskite photovoltaic device based on conductive glue bonding comprises an anode substrate, a self-assembled monolayer, a conductive glue layer, a perovskite layer, an electron transport layer, a hole blocking layer and a cathode electrode which are sequentially arranged on one side of the anode substrate, and the material of the conductive glue layer is selected from one or more of polyaniline, polythiophene, polypyrrole and polyacetylene. The conductive glue is used as a conductive adhesive, interacts with the perovskite and is bonded with the self-assembled monolayer at the same time, the buried bottom interface contact is improved, the charge transport and stability of the interface contact are improved, and the overall performance of the photovoltaic device is significantly improved.

Drum heads including mechanochromic impact sensors are disclosed, along with other live-event memorabilia recording concepts. The sensors are based on core-shell vesicles having a core and a shell material layer at least party surrounding the core. The core includes crystalline polyacetylene. The shell material layer includes silk fibroin. The sensors provide impressively large dynamic range, thereby allowing quantitative measurement of blunt force impact across a new range of forces with a single sensor.

The application discloses a rapid detection method of non-opiate sedative agent methaqualone, and belongs to the technical field of forensic toxicant safety detection. The method comprises the following steps: firstly, preparing melamine foam material of surface modified dopamine-polyacetylene imine copolymer; then, cutting the melamine foam material and placing it into the head of a pipette gun, compacting to obtain a treated head; enriching methaqualone in the head; and detecting the sample by ion mobility spectrometry after ionization of the sample.

The utility model relates to the technical field of cover plates, in particular to an anti-interference cover plate taking ABS (Acrylonitrile Butadiene Styrene) plastic and propyl alcohol composite carbon nanotubes as a substrate, which comprises a cover plate and an anti-interference structure, and the anti-interference structure is arranged on one side of the cover plate. The anti-interference layer is made of single-walled carbon nanotubes and has certain anti-interference capacity, electromagnetic interference can be shielded, meanwhile, physical interference can be resisted, the reinforcing layer and the cover plate are made of ABS plastic, the reinforcing layer is of a honeycomb structure, the strength of the anti-interference structure is guaranteed, and the anti-interference performance of the cover plate is improved. The material of the anti-electromagnetic layer is a net-shaped structure woven by silver fibers, the shielding effect is excellent, the net-shaped structure is of a triangular structure, the stability is high, the anti-deformation capacity is high, the material of the connecting layer is a polyacetylene material, certain elasticity is achieved, meanwhile, certain anti-interference capacity is achieved, the sealing performance between the cover plate and the shell is guaranteed, and the service life is prolonged. Therefore, the anti-interference performance of the cover plate is realized, the external electromagnetic interference can be effectively blocked, and the stable operation of equipment in a complex electromagnetic environment is ensured.

This invention discloses polyacetylene compounds, their preparation methods, and their applications in the preparation of anti-inflammatory and antibacterial drugs, belonging to the pharmaceutical field. The polyacetylene compounds of this invention are isolated from Atractylodes lancea plants and possess significant anti-inflammatory and antibacterial activities, making them suitable for the preparation of anti-inflammatory and antibacterial drugs. This invention provides candidate compounds for the development of new anti-inflammatory and antibacterial drugs and is of great significance for the development and utilization of medicinal plant resources. The polyacetylene compounds of this invention can be used alone, in combination, or as pharmaceutical compositions in the preparation of anti-inflammatory or antibacterial drugs, and can be prepared as powders, pills, capsules, tablets, films, ointments, granules, aerosols, or gels, etc.

To provide a new substituted polyacetylene having a ketocoumarin skeleton, which is expected to be applied to a photo-electroluminescent material, and to provide an industrially advantageous method for producing the same.SOLUTION: The substituted polyacetylene has a ketocoumarin skeleton containing a repeating unit represented by general formula (1). (In the formula, R1 represents a group selected from alkyl groups, cycloalkyl groups, aryl groups, heteroaryl groups, aralkyl groups, alkoxy groups, amino groups, carbonyl groups, carboxy groups, hydroxy groups, and nitro groups, and the alkyl groups, cycloalkyl groups, aryl groups, heteroaryl groups, aralkyl groups, alkoxy groups, and amino groups may have substituents. X represents a halogen atom. N represents an integer of 0 to 3. ) SELECTED DRAWING: None