122 results about "Thiophenate" patented technology

The invention belongs to the photovoltaic field, and particularly relates to a self-assembled monolayer (SAMs), a perovskite solar cell and a preparation method. The self-assembled monolayer comprises a self-assembled monolayer molecule and a thiophene organic matter. The thiophene organic matter forms a frame structure after SAMs film forming, the stability of SAMs can be improved, meanwhile, the carrier transport efficiency of a hole transport layer is improved through the pi-pi conjugation effect, and the performance of a device is improved.

The present disclosure relates to herbicidal combinations, compositions and methods for controlling weeds comprising the carbamate herbicide asulam and an additional herbicide selected from the group comprising cyclohexanedione oxime herbicides, pyrimidinylsulfonyhirea herbicides, triazolopyrimidine herbicides, imidazolinone herbicides, alkylazine herbicides, triketone herbicides, N-phenylimide herbicides or chloroacetamide herbicides. Specifically, the additional herbicide may be one of clethodim, chlorimuron, diclosulam, imazamox, imazethapyr, indaziflam, mesotrione, saflufenacil, tiafenacil or S-metolachlor.

The invention discloses a modified graphene antistatic fiber and a preparation method thereof, and relates to the technical field of chemical fibers. When the modified graphene antistatic fiber is prepared, polyethylene glycol terephthalate, an ultraviolet absorption monomer and dimethyl (vinyl) silane react to prepare modified polyester; the preparation method comprises the following steps: polymerizing thiophene, hydantoin thiophene and 3-vinyl thiophene, and coating the phase change microcapsule with the polymerized thiophene, hydantoin thiophene and 3-vinyl thiophene to prepare a pre-modified phase change microcapsule; reacting the pre-modified phase change microcapsule with sodium hypochlorite to obtain a modified phase change microcapsule; the pre-modified graphene and 5-chloro-1-pentene are subjected to a reaction, and modified graphene is prepared; preparing a spinning solution from the modified polyester, the modified phase change microcapsules, the modified graphene, chloroplatinic acid and N, N-dimethylformamide, and performing wet spinning to obtain the modified graphene antistatic fiber. The modified graphene antistatic fiber prepared by the invention has excellent anti-aging, antibacterial, flame-retardant, antistatic, warm-keeping and mechanical properties.

The invention discloses a natural nitrogenase-like FeMo nano-enzyme and a preparation method and application thereof, and relates to the technical field of nano-enzymes and agriculture, the method comprises the following steps: respectively dissolving 1, 3, 4-thiadiazole-2, 5-diamine, molybdenum pentachloride, ferric chloride and 2, 5-thiophenedicarboxylic acid in absolute ethyl alcohol; the preparation method comprises the following steps: adding a molybdenum pentachloride solution and a ferric chloride solution into a 1, 3, 4-thiadiazole-2, 5-diamine solution, and stirring until the solution is yellowish-brown to obtain a FeMo nano-enzyme mixed solution; and adding a 2, 5-thiophenedicarboxylic acid solution into the FeMo nano-enzyme mixed solution, stirring, and sequentially centrifuging, drying and calcining to obtain the natural nitrogenase-like FeMo nano-enzyme. The FeMo nano-enzyme has nitrogen fixation activity similar to that of natural nitrogenase, nitrogen and water can generate ammonia at normal temperature and normal pressure, and the technical problem that in-situ generation of ammonia in plants at normal temperature and normal pressure is difficult in the prior art is solved.

The invention relates to the technical field of coatings, and discloses a weather-resistant high-strength anti-corrosion rust remover based on an inorganic composite material, a preparation method of the weather-resistant high-strength anti-corrosion rust remover and application of the weather-resistant high-strength anti-corrosion rust remover to bolts. The preparation method comprises the following steps: carrying out atom transfer radical polymerization reaction on a thiophene-containing initiator, styrene and hydrotalcite dispersion liquid to obtain a hydrotalcite / block copolymer composite material, and uniformly mixing the hydrotalcite / block copolymer composite material with phosphorus-containing epoxy acrylate, acrylic acid methyl gallate, an active diluent and a photoinitiator; the weather-resistant high-strength anti-corrosion rust remover based on the inorganic composite material is prepared. The rust remover has excellent corrosion resistance and weather resistance, a passivation protection coating is formed after the rust remover serving as a rust coating is coated and cured on the surface of a base material subjected to incomplete rust removal, the coating is high in mechanical strength and has lasting weather resistance and corrosion resistance, and the rust remover can be applied to anti-corrosion protection of bolts.

The present invention discloses a sulfur-nitrogen co-doped graphene hollow nanosphere and its preparation and application, belonging to the technical field of graphene nanomaterials. During the preparation, a mixture of thiourea and zinc powder is first calcined under the protection of an inert gas, and then H2O and HCl are added to the calcined product and heated for reaction, followed by post-processing to obtain the target product. The resulting product is a sulfur-nitrogen co-doped graphene material, which presents a hollow spherical morphology. This material has a large specific surface area and pore volume, and both the nitrogen and sulfur doping amounts have reached a high level. It has been verified that the obtained high-sulfur-nitrogen co-doped graphene hollow nanospheres have unique graphite nitrogen-pyridine nitrogen-thiophene sulfur synergistic active sites, which have high atomic utilization and high stability, and exhibit the best performance of activating persulfate to degrade organic matter. It can continuously and rapidly separate organic pollutants in actual water bodies and exhibit excellent stability.

The invention relates to a method for preparing bio-based isosorbide dimethyl ether through resin catalysis, and belongs to the technical field of organic synthesis. Adding corn starch into a sulfuric acid solution, hydrolyzing into glucose, and filtering to obtain a glucose solution; adding a solid acid catalyst into the concentrated glucose solution, and filtering after reaction; carrying out reduced pressure distillation on the filtrate to obtain an isosorbide crude product, and purifying through recrystallization; the preparation method comprises the following steps: adding isosorbide, a methylation reagent and a basic catalyst into a reaction kettle, stirring for reaction, cooling and filtering; and distilling the filtrate, and collecting fractions to obtain high-purity isosorbide dimethyl ether. The solid acid catalyst is sorbic acid based styryl macroporous cation exchange resin; the styryl macroporous cation exchange resin is soaked in sulfuric acid to be activated and then is mixed with sorbic acid chloride, 2-thiophenecarbonyl chloride and zinc chloride to react, and then washing and drying are performed to prepare the solid acid catalyst; the isosorbide dimethyl ether prepared by the method disclosed by the invention is high in purity and relatively high in yield.

The invention discloses transparent resin as well as a preparation method and application thereof, and belongs to the technical field of polyester synthesis and application and development of polyester materials. The preparation method comprises the following steps: sequentially carrying out esterification reaction and polycondensation reaction on a mixture containing dibasic acid, dihydric alcohol, a catalyst and a stabilizer to obtain transparent resin; the binary acid is selected from at least one of terephthalic acid, 2, 5-furandicarboxylic acid and 2, 5-thiophenedicarboxylic acid; the dihydric alcohol is selected from at least two of ethylene glycol, 1, 4-butanediol, 1, 4-cyclohexanedimethanol, isosorbide and 2, 2, 4, 4-tetramethyl-1, 3-cyclobutanediol, and the dihydric alcohol is selected from at least two of ethylene glycol, 1, 4-butanediol, 1, 4-cyclohexanedimethanol, isosorbide and 2, 2, 4, 4-tetramethyl-1, 3-cyclobutanediol; the catalyst is selected from defect-state nano titanium dioxide; and the stabilizer is selected from triphenyl phosphate. By using the combination of the defect-state nano titanium dioxide catalyst and the triphenyl phosphate stabilizer, the polymerization reaction can be completed with high activity and low time consumption, and meanwhile, good transparency, excellent color, low ash content and excellent thermodynamic property of the product are kept.

Methods for controlling and / or suppressing Poa annua (annual bluegrass) in a stand of warm season turfgrass are provided. In certain aspects, the methods may include contacting a stand of warm season turfgrass comprising Poa annua with an herbicidally effective amount of thiencarbazone-methyl when the Poa annua is in an early post-emergence growth state or during an early post-emergence period of time.

The invention belongs to the technical field of biological medicine, and particularly discloses application of tea polyphenol combined with meropenem to preparation of a medicine for resisting carbapenem drug-resistant bacteria, and the carbapenem drug-resistant bacteria are animal source blaNDM-5 positive escherichia coli and / or klebsiella pneumoniae. A trace bouillon chessboard method, a cefoxitin hydrolysis test, a time-sterilization curve, a greater wax moth infection model and the like prove that the tea polyphenol and carbapenem antibiotic meropenem generate a good synergistic antibacterial effect, and the tea polyphenol can also inhibit the activity of NDM-5 enzyme; meanwhile, the treatment and protection effects of meropenem on a greater wax moth infection model are improved. It is found for the first time that tea polyphenol can reverse the drug resistance of carbapenem drug-resistant bacteria to meropenem and enhance the antibacterial activity of meropenem to carbapenem drug-resistant bacteria, the synergistic effect is remarkable, use is easy, popularization is easy, and good application value is achieved.

The present invention relates to a method for preparing a high-specific-capacity biomass hard carbon material, comprising the following steps: (S1) pretreatment: the biomass raw material is crushed and washed to obtain a pretreated material; (S2) graft modification: triallyl isocyanurate, thienyl acrylic acid, a photoinitiator, and an inhibitor are dissolved in alcohol to obtain a modified solution; the pretreated material is added to the modified solution for immersion and then subjected to graft polymerization reaction under ultraviolet light to obtain a modified biomass; (S3) hydrothermal precarbonization: the modified biomass is added to a mixed aqueous solution of phosphoric acid and zinc chloride for heating reaction to obtain a hard carbon precursor; (S4) pyrolysis carbonization: the hard carbon precursor is mixed with an inorganic salt and carbonized under an inert atmosphere, and then purified and ground to obtain a high-specific-capacity biomass hard carbon material. The hard carbon material finally obtained by the present invention is used as a negative electrode material in a sodium ion battery, and has excellent comprehensive electrochemical properties, especially a significant improvement in specific capacity at high rates.

The present application provides a kind of herbicidal composition comprising trifluralin, acetochlor and thifensulfuron-methyl, active ingredients comprising trifluralin, acetochlor and thifensulfuron-methyl, and the mass ratio of trifluralin, acetochlor and thifensulfuron-methyl is 10-30:20-40:0.5-2.The herbicidal composition of the present application can be used for the control of annual weeds in crop fields, and has a significant synergistic effect.

The invention provides a photoactive layer conjugated polymer donor, a preparation method and application thereof, and a semitransparent solar cell device, and belongs to the technical field of organic synthesis. The invention provides a conjugated polymer donor for a photoactive layer, which takes thiophene as a skeleton, enhances the solubility by a long alkyl chain group, belongs to a narrow-band gap donor, is large in weight-average molecular weight, is high in viscosity of the conjugated polymer donor for the photoactive layer, and can be used for preparing an active layer with the same thickness. The conjugated polymer donor of the high-molecular-weight optical active layer can use a lower-concentration solution, so that the material loss of the active layer is reduced, the difficulty and time of proportioning are reduced, the process cost is reduced, the large-scale mass production and industrialization of OPV are facilitated, and the method has huge application potential in semitransparent organic solar cell devices.

The invention belongs to the technical field of environmental microorganisms, and provides Klebsiella capable of degrading thifensulfuron methyl and simultaneously promoting plant growth, the Latin of the Klebsiella is Klebsiella sp., the preservation name is Klebsiella sp. HDJY-1, the preservation place is China Center for Type Culture Collection, the preservation date is November 17, 2025, and the preservation number is CCTCC NO: M 20252578. The strain has excellent low temperature resistance and alkali resistance, not only can grow and propagate by taking thifensulfuron methyl as a unique carbon source and energy, but also can secrete plant growth-promoting substances such as indoleacetic acid and the like, and has a nitrogen fixation function. Therefore, the strain provided by the invention not only can remarkably promote plant growth and improve nutrient absorption efficiency so as to improve plant biomass and agricultural product quality, but also can provide an excellent strain resource for thifensulfuron methyl pollution remediation of farmland soil.

The present application provides a novel structure of thiophene compound, the compound has significant inhibitory effect on spore germination and appressorium formation of various plant pathogenic fungi and oomycetes (such as Pyricularia oryzae, Colletotrichum gloeosporioides, Gibberella, Phytophthora, Phytophthora capsici), which can be used for preventing and treating plant diseases caused by fungi and / or oomycetes.

The invention belongs to the technical field of biomedicine, and particularly relates to application of a sorted protein SNX3 inhibitor in preparation of drugs for proliferative retinopathy. The invention verifies that the overexpression of the sorted protein (SNX3) induces pathological angiogenesis and is a new target of pathological neovascular diseases, and a small-molecule inhibitor W1122 is identified based on the protein structure of the SNX3. The chemical structural formula of the small-molecule inhibitor W1122 is as shown in formula 1, the small-molecule inhibitor W1122 belongs to imidazo [1, 2-a] pyridine derivatives, the chemical name of the small-molecule inhibitor W1122 is N-(1, 1-dioxobenzo [b] thiophene-6-yl)-2-(7-methoxy-2-phenyl imidazo [1, 2-a] pyridine-3-yl) acetamide, the chemical formula of the small-molecule inhibitor W1122 is C24H19N3O4S, the molecular weight of the small-molecule inhibitor W1122 is 445.49 g / mol, and the small-molecule inhibitor W1122 can effectively inhibit pathological retinal angiogenesis. The result of the embodiment of the invention shows that the small-molecule inhibitor W1122 can effectively prevent and treat proliferative retinopathy by inhibiting the expression of SNX3, and shows that the sorted protein SNX3 provides a new drug target for treating the proliferative retinopathy.

The utility model relates to the technical field of natural gas detection equipment, in particular to a natural gas leakage detection device, which comprises a controller comprising a control circuit, an OR gate circuit, a first comparator and a second comparator; the input end of the first comparator inputs a methane concentration signal and compares the methane concentration signal with a first basic signal, and the output end outputs a high level or a low level according to a comparison result; the input end of the second comparator inputs a thiophane concentration signal and compares the thiophane concentration signal with a second basic signal, and the output end of the second comparator outputs a high level or a low level according to a comparison result; two input ends of the OR gate circuit are respectively connected with output ends of the first comparator and the second comparator, and the OR gate circuit is used for outputting a high level or a low level according to the high level or the low level received by the input ends; the control circuit is connected with the output end of the AND / OR gate circuit and triggers the alarm to give an alarm according to the high level. According to the scheme, multi-dimensional leakage detection can be carried out, the detection accuracy can be improved, leakage can be found in time, and potential safety hazards are reduced.

The present invention relates to an emulsion formulation comprising thiencarbazone-methyl or a pesticide-acceptable salt thereof, one or more organic water-immiscible solvents, one or more organic water-miscible solvents selected from linear and cyclic carbamate esters, one or more emulsifiers, and one or more organic bases, wherein the formulation exhibits a pH of 5.5 to 9.

The invention relates to a metal anti-corrosion cleaning agent, a preparation method and application, and the metal anti-corrosion cleaning agent comprises the following components in parts by weight: 0.001-0.06 part of a composite functional agent; 0.1 to 3 parts of a pH regulator; 0.01 to 1 part of inorganic acid; 50-80 parts of an organic solvent; and 20-50 parts of ultrapure water. The thienyl carboxylic ester derivative and the alkanol derivative are combined, the thienyl carboxylic ester derivative removes metal ions (such as Cu < + > and Fe < + >) in a targeted mode by means of the strong chelating capacity of ester groups, and organic pollutants are stripped through the pi-pi effect; the alkanol derivative wraps non-polar residual gum by using a long-chain hydrophobic end, and a hydrophilic end enhances the wettability of a solution, so that full-coverage cleaning of a nano-scale structure is realized.

The application provides a fermented vegetable oil and a preparation method thereof. The preparation method comprises the following steps: crushing a vegetable oil raw material and mixing the same with water to obtain a raw material solution; adding a biological enzyme to the raw material solution to perform enzymolysis, and after enzyme inactivation, an enzymolysis product is obtained; then, a fermentation bacteria is added to perform fermentation, sterilization and centrifugation to obtain an oily liquid; the oily liquid, 1,2-dilauroylphosphatidyl ethanolamine, a self-assembled structure regulator and propylene glycol are uniformly mixed, and then added into water to obtain a liposome suspension of the fermented vegetable oil; 3-thiophene malonic acid and / or flower acid are first added into the liposome suspension of the fermented vegetable oil, and then heparan sulfate and calcium chloride are added, and after reaction, the fermented vegetable oil encapsulated in a carrier is obtained. The preparation method of the fermented vegetable oil has good long-term stability, and can also improve the poor compatibility of the fermented vegetable oil with a water-based system.

The application discloses a kind of heterogeneous methylation reagent and preparation method thereof, it is related to organic synthesis technical field.The preparation method of heterogeneous methylation reagent provided by the application, the heterogeneous methylation reagent is heterogeneous aryl sulfide type methylation reagent or heterogeneous aryl sulfide type deuteromethylation reagent, this preparation method is based on the synthesis method of superhigh crosslinking polymer, by aryl sulfide compound with thianthrene as representative is polymerized, the reactivity of material obtained after polymerization still retains monomer, can repeatedly cycle and carry out methylation or deuteromethylation, reach almost 100% atomic utilization efficiency.The traditional homogeneous sulfur methyl methylation reagent such as (DMTT) will produce dibenzothiophene by-product after reaction, and it is very difficult to separate and purify methylated product, and the methylation reagent of heterogeneous of the application only needs simple centrifugation or suction filtration step to realize the separation of product and methylation reagent, greatly improve synthesis efficiency.

The application belongs to the technical field of pharmaceutical chemistry, and particularly relates to a pyrimidine and thienopyrimidine derivative, a preparation method and application thereof. The pyrimidine derivative in the application is a compound with the structure of formula I, and the thienopyrimidine derivative is a compound with the structure of formula II. The pyrimidine and thienopyrimidine derivative can be used as an AcrB efflux pump inhibitor, and can significantly enhance the antibacterial activity when combined with an antibacterial drug. The Nile red experiment shows that the compound 64c can completely inhibit the AcrB-mediated efflux at a concentration of 50 μM, and the effect is better than that of the positive control PA beta N. The compound in the application has novel structure and excellent activity, and can be used for preparing an AcrB efflux pump inhibitor for reversing bacterial drug resistance and an antibacterial sensitizing drug.

The application belongs to the technical field of near-infrared luminescence and ultrasonic treatment materials, discloses a kind of activatable acoustic power nano materials based on conjugated polymer and its preparation method and application, comprising the following steps: 2,6-di (trimethyl tin) -4,4-di (2-ethylhexyl) -dithiophene and cyclopentadiene, 4,7-dibromo-5,6-dinitrobenzo [c] [1,2,5] thiazole, catalyst tetra (triphenylphosphine) palladium are added into reaction tube, toluene is added, and the reaction product is settled with methanol under nitrogen protection, to obtain conjugated polymer;Degradable mesoporous silica is used to wrap to realize the water-soluble of molecule, and the corresponding activatable acoustic treatment reagent is obtained.The material disclosed in the application can be used for activatable acoustic dynamics treatment guided by near-infrared two-zone imaging, which helps to improve the specificity of tumor treatment, and mesoporous silica wrapping can also be used for drug loading and transport.

The invention discloses a degradable environment-friendly fiber and a preparation method thereof, and relates to the field of fibers. When the degradable environment-friendly fiber is prepared, triethyl phosphite firstly reacts with 3-(2-bromoethyl) thiophene and then reacts with dimethyl terephthalate and ethylene glycol, and modified polyester is prepared; the preparation method comprises the following steps: enabling chitosan oligosaccharide to react with 4-hydroxy-3-pyridylaldehyde, thionyl chloride and 2-(dimethylaminomethyl) thiophene in sequence, so as to prepare functionalized chitosan oligosaccharide; mixing the functionalized chitosan oligosaccharide, zinc acetate and modified polyester, and performing melt spinning to obtain composite fibers; mixing thiophene, ferric chloride and trichloromethane to prepare a thiophene solution; and immersing the composite fiber in a thiophene solution, and drying to obtain the degradable environment-friendly fiber. The degradable environment-friendly fiber prepared by the invention has excellent flame retardance, antibacterial property, antistatic property and light aging resistance.

The present invention provides a ternary herbicidal composition containing pyroxasulfone, thifensulfuron-methyl and flufenacet, comprising active ingredients in the following mass ratio: the mass ratio of pyroxasulfone, thifensulfuron-methyl and flufenacet is 1-10:0.1-10:1-50. The herbicidal composition of the present invention can be used to control gramineous weeds, broad-leaved weeds and sedges in wheat fields. The herbicidal composition of the present invention has a significant synergistic effect and can broaden the herbicidal spectrum, solving various weed problems with a single application and making up for the defects and limitations of single-agent use.

The application provides a herbicide composition for preventing and treating cyperus iria, a preparation method and application thereof, and aims to solve the technical problem of lacking effective and controllable herbicide for cyperus iria and various monocotyledonous and dicotyledonous weeds in the field. The herbicide composition is composed of effective components and necessary adjuvants, wherein the effective components are composed of atrazine, halosulfuron, thifensulfuron-methyl and fluroxypyr according to a weight ratio of 9.0-54.0:0.75-3.0:0.75-3.8:1.5-6.5. The herbicide composition has rapid and effective prevention and control effects on common annual grass weeds and broadleaf weeds in the millet field, and can eradicate the malignant weed cyperus iria. The herbicide composition is safe to the millet, and can also play a certain role in controlling the growth of the millet, reduce the plant height of the millet, reduce the risk of lodging of the millet, and improve the yield of the millet.

The invention discloses an antibacterial and anti-static turnover tray which is formed by compounding a base layer, an antibacterial and anti-static functional layer and a surface protective coating, each layer is composed of the following materials in parts by mass; the base layer material is prepared from 80 to 100 parts of modified high-density polyethylene; the antibacterial and antistatic functional layer is prepared from the following materials in parts by weight: 30-40 parts of polystyrene-butadiene-styrene block copolymer, 10-15 parts of silver-loaded zeolite antibacterial agent, 5-8 parts of polythiophene conductive polymer, 5-8 parts of compatibilizer and 1-2 parts of calcium stearate lubricant; the surface protection coating material is prepared from 20 to 30 parts of waterborne polyurethane emulsion. The formula is improved, and the silver-loaded zeolite antibacterial agent and the polythiophene conductive polymer are introduced, so that the turnover tray is good in durability and has antibacterial and antistatic functions.

Disclosed herein are apyrase inhibitors of Formula (I): (I). Also disclosed herein are methods for using the disclosed inhibitors, including in methods for protecting crops from pests. In one aspect the apyrase inhibitors are useful for enhancing the activity of pesticides for the protection of crops from pathogens and to support crop yield.

The application relates to the technical field of platinum recovery, and particularly discloses a method for purifying and recovering platinum. The method for purifying and recovering platinum comprises the following steps: extracting chloroplatinate ions from a liquid to be purified by using an organic extractant, the liquid to be purified being an aqueous solution in which platinum exists in the form of chloroplatinate ions, and separating an organic phase; the organic extractant is obtained by dispersing 2-(thiophenylmethyl) diethyl phosphonate in methyltrioctylammonium chloride; reacting the chloroplatinate ions in the organic phase with an aqueous reagent, separating the organic phase and the aqueous phase, back-extracting platinum into the aqueous phase, and separating the aqueous phase; adding a reagent to the aqueous phase to convert the platinum into a precipitate; separating the precipitate, and calcining to obtain elemental platinum. The methyltrioctylammonium chloride and 2-(thiophenylmethyl) diethyl phosphonate synergistically extract the chloroplatinate ions with high selectivity, have extremely high extraction capacity, reduce the amount of the organic extractant, and reduce the pressure of subsequent treatment of the organic extractant.

The invention discloses a trithiophene type fluorescent probe for detecting total polar substances of edible oil as well as a preparation method and application of the trithiophene type fluorescent probe. The preparation method comprises the following steps: directly carrying out a coupling reaction on 4-bis (4-methoxyphenyl) amino] phenyl]-[2, 2 ': 5', 2 ''-trithiophene-5-formaldehyde and 4-bis (4-methoxyphenyl) aminophenylboronic acid to prepare 5''-[4-[bis (4-methoxyphenyl) amino] phenyl]-[2, 2 ': 5', 2 ''-trithiophene-5-formaldehyde, and reacting the compound with 4-methylquinoline to synthesize the probe (E)-4-methoxy-N-(4-methoxyphenyl)-N-[4-(5''-(2-(quinoline-4-yl) vinyl)-[2, 2 ': 5', 2 ''-trithiophene-5-formaldehyde. The compound can selectively detect the polarity of edible oil, yellow fluorescence is quenched after the polarity of the edible oil is increased, and the compound can be used as a fluorescent probe for detecting the polarity of the edible oil.