1847 results about "Thiophene" patented technology

The present disclosure relates to a pharmaceutically acceptable salt of a G12D inhibitor compound and a crystal form thereof. Specifically, provided in the present disclosure are a salt of 2-amino-4-((5S,5aS,6S,9R)-12-((1-((4-(difluoromethylene)piperidin-1-yl)methyl)cyclopropyl)methoxy)-1-fluoro-5-methyl-5a,6,7,8,9,10-hexahydro-5H-4-oxa-3,10a,11,13,14-pentaaza-6,9-methanonaphtho[1,8-ab]cyclohepten-2-yl)-7-fluorobenzo[b]thiophene-3-carbonitrile and a crystal form thereof.

The invention relates to an antistatic MLCC release film base film and a preparation method thereof. The antistatic MLCC release film base film is prepared by melt blending and biaxial stretching of PET master batch, an antistatic composition and a nano filler, wherein the antistatic composition is prepared by compounding modified PET-PEG and thiophene modified aromatic polyamide; the nano filler is prepared by carrying out melt extrusion on KH550 modified talcum powder and MAH-g-PET (maleic anhydride-grafted polyethylene terephthalate). The antistatic composition disclosed by the invention has the beneficial effects that the antistatic composition is formed by interweaving two polymers, and a stable three-dimensional conductive network is constructed in the PET film, so that the antistatic performance is more efficient, lasting and stable. In addition, through chemically bonded modified talcum powder, the smoothness and low roughness are provided, and meanwhile reinforcing and toughening are achieved; and the single-layer extrusion process can realize ultrathin thin film, the production process is simplified, and the production cost is greatly reduced.

The invention relates to preparation of a covalent organic framework material (COF) containing methyl and thiophene and application of the covalent organic framework material in production of hydrogen peroxide. Two thienyl covalent organic framework materials are prepared respectively, and the problem that the yield of hydrogen peroxide produced through photocatalysis of an existing covalent organic framework material is not high is solved. A solvothermal method is adopted for preparation, the preparation process is simple and efficient, the solvent consumption is low, the method is green and environmentally friendly, the yield is high, the problem that the energy utilization efficiency is too low due to mutual compounding of photon-generated carriers and electrons in the photocatalysis process is solved, and the efficiency of photocatalytic production of hydrogen peroxide is effectively improved. The BTTPa-2COF is applied to photocatalytic production of hydrogen peroxide, experimental results show that the BTTPa-2COF has excellent performance of photocatalytic production of hydrogen peroxide, and the performance of hydrogen peroxide production can reach 3680 [mu] molg <-1 > h <-1 > under visible light irradiation.

The invention relates to the technical field of photovoltaic cells, in particular to a hole transport material and a preparation method thereof, a solar cell and an optoelectronic device. The hole transport material comprises a hole transport polymer, and the hole transport polymer has at least one of repetitive units shown in formulas (I)-(III). According to the hole transport material provided by the invention, thienopyrrole, carbazole and phenothiazine are adopted as conjugated units of the hole transport polymer, a cyano phosphate group is adopted as an anchoring unit of the hole transport polymer, and through the synergistic effect of the conjugated units and the anchoring unit, the efficiency and stability of a perovskite solar cell are improved, and the service life of the perovskite solar cell is prolonged.

The invention discloses a wear-resistant vehicle body film and a preparation method thereof, and relates to the technical field of films. The wear-resistant automobile body film prepared by the invention is prepared from polytetrahydrofuran ether glycol, isophorone diisocyanate, a catalyst, dihydric alcohol quaternary ammonium salt, a functional aid, modified silicon dioxide and a chain extender. The dihydric alcohol quaternary ammonium salt is obtained by reacting N, N '-dihexyl-N, N'-dimethyl propane-1, 3-diamine with monochloroacetone and then condensing with glycerol; the functional additive is obtained by reacting 2-boric acid thiophene-4-methyl acetate with 2, 7-dibromofluorene and then carrying out bromination hydrolysis; the modified silicon dioxide is obtained by reacting pretreated silicon dioxide with melamine and then reacting with sodium hypophosphite. The wear-resistant vehicle body film prepared by the invention has good anti-aging, wear-resistant, antibacterial and flame-retardant properties.

The invention discloses an organic compound, a composition, an electronic device and a display panel. The organic compound has a structure as shown in formula (1): (1); the organic compound provided by the invention is an arylamine compound taking dibenzofuran or dibenzothiophene substituted by a heterocyclic group containing a nitrogen atom, an oxygen atom or a sulfur atom as a core structure, and can have a relatively high refractive index; when the organic compound provided by the invention is used in a covering layer of an electronic device, the refractive index of the covering layer can be effectively improved, so that the luminous efficiency of the electronic device is improved, and the electronic device with excellent performance can be realized.

The invention discloses a method for green and efficient removal of thiophene sulfides in fuel oil by using Q [8]. According to the method provided by the invention, a Q [8] solid powder material is adopted to carry out removal treatment on simulated fuel oil containing the thiophene sulfides in a subject-object interaction mode, and the Q [8] solid powder material can be subjected to a regeneration process for reuse through ethanol desorption. The Q [8] solid powder material used in the method is low in cost, the urea is a main raw material for synthesis of the Q [8] solid powder material, and the Q [8] solid powder material is high in selectivity, can be recycled and is more environmentally friendly. The method is simple to operate, convenient to use and low in cost, the combustion simulation oil can be efficiently desulfurized, and environmental pollution is effectively reduced.

The invention relates to a compound, a preparation method, a hole transport layer material, a photovoltaic device and a photovoltaic module. R1 and R4 are respectively and independently selected from amino and derivatives thereof, hydroxyl and derivatives thereof, methoxyl and derivatives thereof, sulfydryl and derivatives thereof, methylthio and derivatives thereof, thiophene groups and derivatives thereof, phosphate groups and derivatives thereof, carboxylic acid groups and derivatives thereof, and sulfonic acid groups and derivatives thereof; r2 and R3 are independently selected from alkyl, a phosphate group and derivatives thereof, a carboxylic acid group and derivatives thereof, a sulfonic acid group and derivatives thereof, and trimethoxysilyl propyl and derivatives thereof. The material is beneficial to improving the photoelectric conversion efficiency of photovoltaic devices and photovoltaic modules.

The invention relates to the technical field of luminescent materials, and discloses an aggregation-induced emission material, nanoparticles as well as a preparation method and application thereof, the structural general formula of the aggregation-induced emission material is as follows: # imgabs0 #, R is selected from one of the following structures: # imgabs1 # aggregation-induced emission material takes a pyridine group as an acceptor unit, and the acceptor unit is selected from one of the following structures: 1 # imgabs2 # aggregation-induced emission material; a carbon-carbon double bond and a thiophene unit are used as pi bridges, and diphenylamine, bis (4-ethylphenyl) amine and bis (4-(tert-butyl) phenyl) amine are used as strong electron donors. The donors not only provide strong electron supply ability, but also become efficient rotors due to highly twisted molecular conformation, and endow the aggregation-induced emission material with long emission wavelength and aggregation-induced emission activity.

The invention discloses a preparation method of a grafted and substituted thiophene polymer material, which comprises the following steps: mixing poly (3-hexylthiophene), a grafting monomer, a catalyst and an auxiliary agent, and heating for reaction to obtain the grafted and substituted thiophene polymer material, the structural formula of the grafting monomer is as shown in formula (I); wherein B is fluorine, chlorine, bromine or iodine, A is a carbon atom or a nitrogen atom, and R is cyano, formyl, methoxycarbonyl or; according to the method, pre-synthesis of complex functional monomers is avoided, the main chain of the poly (3-hexylthiophene) can be directly modified without using an expensive catalyst or ligand, the polymerization reaction of the poly (3-hexylthiophene) is not interfered, and meanwhile, the method has the advantages of simplified steps and low cost.

The invention discloses a phosphorus-sulfur synergistic flame retardant with high gas phase activity, a durable flame-retardant nylon fabric and a preparation method of the flame-retardant nylon fabric, and relates to the technical field of flame-retardant nylon fabric preparation.The preparation method of the phosphorus-sulfur synergistic flame retardant comprises the steps that 9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide and polyepoxide are mixed and heated to be molten for a reaction, and the phosphorus-sulfur synergistic flame retardant is obtained; obtaining an intermediate after the reaction is finished; the intermediate and a thiophenethiol derivative are subjected to a click chemical reaction, and a 9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide derivative containing phosphorus and sulfur is obtained; the preparation method comprises the following steps: dissolving a 9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide derivative containing phosphorus and sulfur into a mixed solvent of ethanol and water, so as to obtain the phosphorus-sulfur synergistic flame retardant with high gas phase activity. The raw materials are safe and environmentally friendly, the preparation method is simple, and the prepared flame-retardant nylon fabric is excellent in flame retardance and washing resistance and free of pollution in the using process.

The invention discloses a fuel cell cathode catalyst and a preparation method thereof, and belongs to the technical field of fuel cells. The preparation method of the fuel cell cathode catalyst comprises the following steps: adding a modified multi-walled carbon nanotube into a chloroplatinic acid aqueous solution with the mass concentration of 5g / L, carrying out ultrasonic treatment at 30-50 DEG C for 1-2 hours, and then carrying out freeze drying; and putting the dry powder into a horizontal tube furnace, introducing inert gas as protective gas, heating to 450-500 DEG C, preserving heat for 1 hour, cooling to room temperature along with the furnace, and taking out to obtain the fuel cell cathode catalyst. The modified multi-walled carbon nanotube is MWCNT / PEI / 5-formyl-2-thiopheneboronic acid, and the 5-formyl-2-thiopheneboronic acid is grafted after the PEI is grafted on the surface of the MWCNT, so that the dispersity of the MWCNT can be obviously improved, the agglomeration phenomenon of the MWCNT is reduced, the dispersion is more uniform, the loading capacity of platinum is high, the electrocatalytic activity of the catalyst is obviously enhanced, and the dosage of platinum is reduced.

The invention discloses a thiophene monomer, a holographic recording medium, a preparation method and a related device, the structural general formula of the thiophene monomer is shown in the specification, the refractive index of the monomer is larger than 1.8 and smaller than 1.9, the diffraction efficiency can be remarkably improved, the thiophene monomer is applied to preparation of a photopolymer type holographic recording medium, and the photopolymer type holographic recording medium with the sensitivity larger than 100 cm / mJ can be obtained. According to the holographic recording medium, the diffraction efficiency of the recording grating is larger than 95%, the refractive index modulation degree is larger than 0.1, and the shrinkage rate is lower than 1%, and further, the holographic recording medium can be used for preparing a volume holographic grating, a holographic optical element and an optical device.

The invention provides a packaging adhesive film for a perovskite assembly and a photovoltaic assembly and application thereof. The adhesive film comprises organic ammonium salt and a packaging adhesive film base material, wherein the organic ammonium salt is selected from one or more of diammonium halogen ammonium salt, phenyl halogen ammonium salt and thiophene halogen ammonium salt. According to the invention, the organic ammonium salt is used as the passivation material and is combined with the adhesive film matrix material to prepare the packaging adhesive film, so that the process step of post-passivation of the perovskite assembly and corresponding expensive vacuum equipment can be omitted, and the packaging cost is greatly reduced while the service life of the perovskite assembly is prolonged.

The invention discloses a thermally stable gas diffusion layer material and a fuel cell, and relates to the field of fuel cells. When the heat-stable gas diffusion layer material is prepared, short-cut polyacrylonitrile carbon fibers are subjected to papermaking and then cured, and 3-aminothiophene is oxidized and grafted to prepare a modified carbon paper base layer; the preparation method comprises the following steps: carrying out a reaction on a single-layer graphene oxide nanosheet, 6-amino-2-mercaptobenzothiazole and 3-aminoethyl thiophene to prepare a modified single-layer graphene oxide nanosheet; the preparation method comprises the following steps: reacting polyvinylidene fluoride powder, 3-allyl thiophene and single-ended vinyl silicone oil to prepare a modified polyvinylidene fluoride emulsion; and uniformly mixing the modified single-layer graphene oxide nanosheet, a modified polyvinylidene fluoride emulsion and isopropanol, spraying on the modified carbon paper base layer, and reacting with 3, 4-ethylenedioxythiophene to prepare the thermally stable gas diffusion layer material. The thermally stable gas diffusion layer material prepared by the method has excellent porosity, thermal stability, conductivity and corrosion resistance.

The invention discloses a preparation method of a triazinyl covalent organic framework (COF) material and application of the triazinyl covalent organic framework material in photocatalytic production of hydrogen peroxide. The amino starting monomer is regulated and controlled through a side chain regulation and control strategy to obtain the COF with a functional group, and the COF can be connected into a ring by thienopyridine through post-modification to replace an original imine bond, so that the planarity and the conjugation degree of the COF are obviously improved, and the COF has good light absorption capacity and a proper band gap; therefore, the COFs photocatalyst has excellent photocatalytic hydrogen peroxide production capacity in a water-benzyl alcohol system under a light source, and a beneficial thought can be provided for designing a high-performance COFs photocatalyst.

4, 4 '-bipyridine (Bpy), 2, 5-thiophenedicarboxylic acid (Tdc), FeCl3. 6H2O, NiCl2. 6H2O, urea and tetrabutylammonium bromide are used as raw materials, a simple hydrothermal-calcination method is adopted to prepare the Fe2O3-coated Ni-MOF composite nanomaterial catalyst, X-ray diffraction (XRD), a scanning electron microscope (SEM) and a N2 adsorption and desorption technology are adopted to characterize a prepared sample, and the electro-catalytic oxygen evolution reaction (OER) activity of the Fe2O3-coated Ni-MOF composite nanomaterial catalyst is tested. Results show that compared with a single component, the activity of the composite nano-material catalyst is greatly improved, especially the composition-optimized Fe2O3-coated Ni-MOF-1 composite nano-material catalyst shows the highest catalytic activity, the composite nano-material catalyst catalyzes OER in 1M KOH, and the overpotential (eta 10) is only 330mV when the current density is 10mA / cm < 2 > and is close to the overpotential 291mV of a noble metal catalyst RuO2.

The invention relates to a compound containing a thiophene group, a device and equipment. In the structural formula of the compound, R1, R2, R3, R4, R5, R6, R7, R8, R9 and R10 are independently selected from hydrogen, halogen, cyano, trifluoromethyl, triphenylamine and derivatives thereof, methoxyl, aryl and derivatives thereof, cyanobiphenyl and naphthyl; the compound can be used for preparing a photovoltaic device and photovoltaic equipment and is used for improving the efficiency and stability of the photovoltaic device.

The invention discloses a carbazole phosphonate-thiophene copolymer as well as a preparation method and application thereof. The structural formula of the carbazole phosphonate-thiophene copolymer is shown as a formula (I), according to the invention, the carbazole phosphonate compound and the thiophene compound are copolymerized, and the obtained copolymer is used for preparing the hole transport layer of the perovskite solar cell, so that the perovskite solar cell has relatively high photoelectric conversion efficiency, and the relatively high photoelectric conversion efficiency can be kept in a humid and hot environment.

The present invention relates to the technical field of heavy oil hydrodesulfurization, and discloses a hydrodesulfurization catalyst preparation process, which comprises: adding deionized water, a nickel source, a molybdenum source and a dispersant into a reaction container, stirring to obtain a metal solution, pouring into a container filled with gamma-Al2O3, impregnating, drying, and roasting to obtain the hydrodesulfurization catalyst. The dispersing agent contains a large number of nitrogen atoms and a plurality of carboxyl groups and hydroxyl groups, has very strong coordination chelation performance on nickel and molybdenum, improves the dispersity of nickel and molybdenum precursors, enables the nickel and molybdenum precursors to be uniformly impregnated into a gamma-Al2O3 carrier, and nickel oxide and molybdenum oxide are uniformly distributed in the gamma-Al2O3 carrier after calcination, so that the nickel and molybdenum oxide-modified gamma-Al2O3 composite material is prepared. The obtained hydrodesulfurization catalyst can expose more nickel-molybdenum catalytic active centers, effectively catalyzes and removes sulfur-containing substances such as thiophenes in straight-run diesel oil, shows a higher desulfurization rate, and improves the quality of oil products.

The invention belongs to the technical field of organic dye synthesis and application, and discloses a conjugated compound containing a benzothiophenazine structure as well as a preparation method and application thereof, and the conjugated compound containing the benzothiophenazine structure has excellent photophysical properties, singlet oxygen yield and superoxide anion generation capacity. The novel conjugated compounds ENBO-NI and ENBS-NI containing benzothiophenazine structures are successfully prepared by replacing a benzene ring of Nile blue with a cycloalkane structure and adjusting the electron donating ability of an R1 group. The two compounds have near infrared fluorescence emission, good solubility and relatively high ROS yield. Compared with a classical photosensitizer NB, the singlet oxygen yield of ENBO-NI is increased by about 117.65%, and the singlet oxygen yield of ENBS-NI is as high as 70%. The absorption wavelength of the conjugated compound is in a red light wave band. The preparation process is simple and efficient, large-scale production is easy, and the preparation method has a wide clinical application prospect.

The invention provides an optical monomer as well as a preparation method and application thereof, the structural general formula of the optical monomer is shown in the specification, in the formula, R1 and R2 are groups with the structural formula shown in the specification; or, one of R1 and R2 is hydrogen, and the other one of R1 and R2 is a group shown in the structural formula; r0 in the group represents hydrogen or methyl. The optical monomer provided by the invention has a (methyl) acrylate group and has the properties of high refractive index and low volume shrinkage; the monomer contains a plurality of aromatic rings with high molar refractive index and low molar volume, sulfur atoms with higher molar refractive index and dibenzothiophene groups with both aromatic rings and sulfur, so that the whole molecule of the monomer has extremely high refractive index, and the whole optical monomer is small in molecular weight and convenient to migrate.

The invention provides a method for continuously synthesizing 2-thiophenecarboxaldehyde by using a continuous flow reactor, and relates to the technical field of organic synthesis, and the method comprises the following steps: mixing thiophene and N, N-dimethylformamide (DMF) to form a material A; continuously inputting the material A and phosphorus oxychloride (POCl3) into a micro-channel continuous flow reactor through a high-pressure feeding pump, and controlling the reaction temperature to be 60-150 DEG C and the retention time to be 0.5-5 minutes; synchronously inputting the reaction liquid output by the micro-channel reactor and a sodium hydroxide aqueous solution into a dynamic tubular reactor, and carrying out hydrolysis reaction at 10-70 DEG C for 0.5-5 minutes; according to the method, the 2-thiophenecarboxaldehyde is obtained by extracting the 2-thiophenecarboxaldehyde by using dichloromethane (DCM), and a continuous flow reactor technology is adopted, so that the reaction efficiency is remarkably improved. Compared with the traditional batch reaction, the continuous flow reactor has higher mass transfer and heat transfer efficiency, can realize rapid reaction, shortens the reaction time, and improves the product yield at the same time.

The invention relates to the technical field of solar cells, in particular to a perovskite cell, a preparation method of the perovskite cell, a laminated cell and a photovoltaic module. Electron-rich N atoms in dithienopyrrole (DTP) can improve the stability of an organic semiconductor material in an oxidation state, S atoms can interact with metal ions in a perovskite absorption layer, so that interface defects on the surface of perovskite are passivated, and meanwhile, DTP serves as a multifunctional electron-rich thiophene fused heterocyclic unit, so that the performance of the perovskite absorption layer is improved. The compound has the unique characteristics that the recombination energy is small, the mobility is high, N and thiophene sites can be chemically modified, and the compound can interact with metal ions. According to the invention, thiophene sites in DTP are chemically modified by adopting an electron-donating group containing aniline fluorene, so that the hole transport material has a deeper HOMO energy level, the HOMO energy level is better matched with the energy level of a perovskite material, better mobility is realized, and hole extraction and transport are facilitated.

The invention discloses an acid and alkali resistant and salt spray resistant coating and a preparation method thereof, and relates to the field of coatings. When the acid and alkali resistant and salt fog resistant coating is prepared, 4-imidazole formaldehyde reacts with 3-aminopropyldimethoxymethylsilane and 9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide, and then reacts with hexamethyldisiloxane, octamethylcyclotetrasiloxane and 2, 4, 6, 8-tetramethylcyclotetrasiloxane to prepare modified polysiloxane; the preparation method comprises the following steps: reacting graphene oxide with 3-aminoethyl thiophene, 3-hexylthiophene and 3-allyl thiophene to prepare modified graphene; the preparation method comprises the following steps: uniformly mixing modified graphene, 1, 3-divinyl-1, 1, 3, 3-tetramethyldisiloxane platinum, a defoaming agent and modified polysiloxane to obtain a component A, taking waterborne epoxy emulsion as a component B, and uniformly mixing the component A and the component B to obtain the acid-alkali-resistant salt-fog-resistant coating. The prepared acid-alkali-resistant salt-fog-resistant coating has good acid-alkali-resistant, salt-fog-resistant, flame-retardant and hydrophobic properties.

The present invention provides a production method of a thienopyrimidine derivative or a salt thereof which has a gonadotropin releasing hormone (GnRH) antagonistic action with high quality in high yield. The present invention provides a method of producing a thienopyrimidine derivative, which comprises reacting 6-(4-aminophenyl)-1-(2,6-difluorobenzyl)-5-dimethylaminomethyl-3-(6-methoxypyridazin-3-yl) thieno[2,3-d]pyrimidine-2,4 (1H,3H)-dione or salt thereof, 1,1′-carbonyldiimidazole or a salt thereof and methoxyamine or a salt thereof, and the like.

The invention relates to preparation of a crystalline allyl covalent organic framework material and application research of the crystalline allyl covalent organic framework material in benzamide cyclization green photocatalytic conversion. The SF-COF material is prepared by adopting a step-by-step synthesis method. The preparation method comprises the following steps: synthesizing a COF precursor by taking 1, 3-benzenetricarboxaldehyde and p-aminophenylacetonitrile as raw materials, and preparing the allylation covalent organic framework material with the electronic push-pull effect from the COF precursor and 5, 5 ', 5'-(benzene-1, 3, 5-triyl) tri (thiophene-2-formaldehyde) through a solvothermal method. The material is applied to the field of photocatalytic organic conversion, and benzamide cyclization and conversion of derivatives of benzamide are achieved under irradiation of a blue light LED. The prepared SF-COF has the advantages of efficient charge separation and electron conduction performance, good structural stability and chemical stability and the like. And a catalyzed organic reaction substrate has the advantages of wide universality range, good cycle stability and the like, and shows excellent photocatalytic conversion capability.

The invention discloses a precise construction strategy of a dibenzothiophene sulfuryl covalent organic framework material and systematically explains efficient application of the dibenzothiophene sulfuryl covalent organic framework material in photocatalytic synthesis of thiadiazole and derivatives thereof. The achievement relates to a plurality of leading subjects such as catalytic chemistry, organic synthesis, material science, environmental engineering and green chemistry. According to the method, 2, 4, 6-triformyl phloroglucinol and 3, 7-diaminodibenzo [b, d] thiophene-5, 5-dioxide are taken as construction units, and the crystalline S-COF rich in sulfuryl active sites can be quantitatively obtained through topology-oriented Schiff base condensation under the conditions of protonic acid catalysis, no water and no oxygen. Under the radiation condition of visible blue light, S-COF is used as a heterogeneous photocatalyst to drive green synthesis of 3, 5-di-p-tolyl-1, 2, 4-thiadiazole and series of derivatives thereof; the invention provides a new catalyst design normal form for light-induced organic conversion, and lays a solid foundation for sustainable development-oriented efficient synthesis chemistry.

The invention belongs to the technical field of extraction separation, and relates to a desulfurization extraction agent and a method for removing thiophene by using the desulfurization extraction agent. The preparation method comprises the following steps: loading a deep eutectic solvent onto graphite phase carbon nitride coated graphene oxide nano-microspheres by an impregnation method to obtain a composite material for removing thiophene, and then mixing and stirring the composite material, a thiophene n-octane solution and hydrogen peroxide for desulfurization. Oxidation desulfurization, adsorption desulfurization and extraction desulfurization are comprehensively used, the desulfurization efficiency is high, the operation condition is mild, and the method is environment-friendly.

The present description relates' to compounds of formula (I) useful for improving pre-mRNA splicing in a cell. In particular, another aspect of the present description relates to substituted thieno[3,2-b]pyridine compounds, forms, and pharmaceutical compositions thereof and methods of use for treating or ameliorating familial dysautonomia.