251 results about "Triphenylphosphine" patented technology

The application discloses a preparation method of carbon aerogel material for light electromagnetic shielding, and comprises the following steps: adding resorcinol, phloroglucinol, a template agent and formaldehyde into pure water, stirring and dissolving to obtain a precursor solution; adding the precursor solution into white oil containing a surfactant, emulsifying, heating in an oil bath and fully reacting; centrifugal separation to obtain powder, high-temperature carbonization, dispersion in oleylamine, addition into a stock solution containing nickel acetylacetonate, triphenylphosphine and oleylamine, high-temperature reaction and cooling, addition of a mixture of hexane and ethanol to obtain a product; centrifugal separation and washing to obtain light high-electromagnetic-shielding carbon aerogel. The carbon aerogel material for light electromagnetic shielding prepared by the method has the advantages of small density, high efficiency, corrosion resistance, high electromagnetic shielding efficiency, high product yield and the like, and by controlling the nucleation and growth rate of Ni2P, the Ni2P nanoparticles can be uniformly grown on the carbon aerogel microspheres, and the method is suitable for application in large-scale industrial production.

The invention discloses a preparation method of 3, 6-dichloropyridazine, and belongs to the technical field of chemistry. According to the method, 3, 6-dihydroxypyridazine is used as a raw material, an organic solvent and triphenylphosphine oxide are combined to form a dichlorotriphenylphosphine intermediate state which is used as a chlorinating agent, dihydroxyl is substituted to generate 3, 6-dichloropyridazine, triphenylphosphine oxide and solid light are used as raw materials, heating reaction is performed to prepare 3, 6-dichloropyridazine, meanwhile, a one-pot method can be adopted in the two-step reaction, and operation is easy and convenient. The novel preparation method for synthesizing 3, 6-dichloropyridazine provided by the invention has the advantages of low raw material cost, high yield, high gas phase purity and no pollution, is suitable for industrial production, can meet industrial requirements, provides a new idea for later preparation of 3, 6-dichloropyridazine, has the remarkable advantages of high gas phase purity and high yield, and is suitable for industrial production. Wide application prospects are realized.

The invention relates to the technical field of biomedical materials, in particular to a preparation method of TPP-mediated mitochondrial-targeted cerium-doped antioxidant carbon quantum dots, which comprises the following steps: mixing citric acid, urea and cerium salt serving as raw materials, and reacting by adopting a hydrothermal method to synthesize the cerium-doped carbon quantum dots; then triphenylphosphine is grafted to the surface of the cerium-doped carbon quantum dot through an amide method, separation and purification are carried out after the reaction is completed, the target carbon quantum dot is obtained, and the cerium element in the cerium salt is used for endowing the carbon quantum dot with an anti-oxidation function. The carbon quantum dots prepared by the method are accurate in mitochondria targeting and strong in oxidation resistance, the preparation process is simple, convenient, environment-friendly and large-scale, and the product is uniform in particle size, stable in fluorescence, good in biocompatibility and wide in application prospect in the field of biomedicine.

The invention provides a method for recovering rhodium in organic residual liquid containing triphenylphosphine / phosphine oxide, and relates to the technical field of precious metal recovery, and the method comprises the following steps: S1, carrying out reduced pressure rectification on the organic residual liquid containing triphenylphosphine / phosphine oxide to remove volatile components until the indexes of the residual liquid meet the feeding requirements of a subsequent process, and collecting light components for independent storage; s2, adding an acidic medium into the organic phase after light component removal, stirring and heating, introducing an oxidizing agent to carry out oxidation-complexation reaction, maintaining reaction conditions until the reaction is complete, standing for phase splitting, and collecting a water phase containing rhodium complex ions; according to the method, a core process combining oxidation-chlorination transfer and anion exchange adsorption is adopted, and key parameters of each process are accurately controlled, so that the rhodium recovery rate is stabilized at 95% or above, the rhodium content in the residual liquid can be reduced to 5 ppm or below, the industrial emission standard is completely met, and compared with the prior art, the resource recovery efficiency is greatly improved, and the cost is reduced. And waste of precious metal resources is effectively reduced.

The invention discloses a high-temperature-resistant and aging-resistant polyurethane structural adhesive and a preparation method thereof, and belongs to the technical field of structural adhesives. The high-temperature-resistant and aging-resistant polyurethane structural adhesive consists of a component A and a component B, wherein the component A is prepared from the following raw materials in parts by mass: 50 to 90 parts of first polyol, 20 to 40 parts of first filler, 10 to 20 parts of flame retardant, 5 to 15 parts of enhancer, 1 to 3 parts of thixotropic agent, 3 to 5 parts of molecular sieve, 0.1 to 1.0 part of antioxidant, 0.01 to 0.05 part of polyurethane environment-friendly organic bismuth catalyst BCAT-E20 and 0.01 to 0.05 part of triphenylphosphine; the component B is prepared from the following raw materials in parts by mass: 40 to 100 parts of isocyanate prepolymer and 10 to 50 parts of second filler. The invention also provides a preparation method of the composition. Compared with the prior art, the high-temperature-resistant and aging-resistant polyurethane structural adhesive prepared by the invention has the advantages of high impact resistance, high interface bonding strength, good flame retardance, high thermal aging resistance and the like.

The invention relates to the field of Karstedt catalysts, and discloses a stable-structure Karstedt catalyst for silane modified polyether synthesis, and the stable-structure Karstedt catalyst is prepared from the following raw materials in parts by weight: 2-4 parts of a Karstedt catalyst, 5-8 parts of a polyether siloxane block copolymer, 1-3 parts of nano silicon dioxide, 0.5-1.5 parts of triphenylphosphine, 20-25 parts of propylene glycol monomethyl ether and 0.5-1.0 part of an organosiloxane coupling agent. A polyether siloxane block copolymer is introduced into a Karstedt Catalyst system, and a flexible coating layer is formed outside a catalytic center by utilizing molecular compatibility of a silicon-oxygen chain segment of the polyether siloxane block copolymer and a platinum ligand, so that the exposure degree of the platinum center is remarkably reduced, interference of moisture and polar impurities in air is effectively inhibited, and the catalytic activity of the catalyst is improved. Therefore, the oxidation resistance and the storage stability of the catalyst are improved.

The invention discloses a high-corrosion-resistance electrophoretic coating and a preparation method thereof, and belongs to the technical field of electrophoretic coatings. The preparation method of the coating comprises the following steps: S1, mixing epoxy resin, a thioether compound with an active group at the end position, a chain extender, triphenylphosphine, an organic solvent 2, an amino catalyst and a neutralizer, and carrying out heat preservation and chain extension to obtain thioether modified epoxy resin; s2, aminating, neutralizing and re-emulsifying the thioether modified epoxy resin in the step S1, an aminating agent, an organic solvent 1, a curing agent, a neutralizing agent and deionized water to obtain a high-corrosion-resistance emulsion; s3, mixing and grinding the thioether modified epoxy resin in the step S1 with pigment, a dispersing agent and deionized water to obtain high-corrosion-resistance color paste; s4, mixing the high-corrosion-resistance emulsion in S2 and the high-corrosion-resistance color paste in S3 according to the mass ratio of 4: 1 to 8: 1 to obtain the high-corrosion-resistance electrophoretic coating. And by adopting the thioether modified epoxy resin, the obtained coating has excellent corrosion resistance, mechanical property and flame retardant property at the same time.

The application discloses a preparation method of beta-carotene, which comprises the following steps: 3-methyl-5-(2,6,6-trimethyl-1-cyclohexen-1-yl)-2,4-pentadienyl triphenyl phosphonium salt (C15 phosphonium salt) cis-trans isomer and 2,7-dimethyl-2,4,6-octatriene-1,8-dial (C10) are dissolved in a water and a water incompatible solvent system, and Wittig reaction is generated under the action of an alkali. The reaction system can avoid that by-product inorganic salt is wrapped in the product, and the content of inorganic salt impurities in the product is reduced. In addition, the proportion of C15 phosphonium salt cis-trans isomer is controlled, a C15 phosphonium salt hydrolysis side reaction is inhibited, and the reaction yield is improved.

The present invention relates to a method for preparing triphenylphosphine, comprising performing heat treatment on a chlorodiphenylphosphine raw material at a temperature of 280-480°C to prepare triphenylphosphine, wherein the content of dichlorophenylphosphine in the chlorodiphenylphosphine raw material does not exceed 35 wt%, based on the total weight of the chlorodiphenylphosphine raw material.

The present disclosure provides a composition for modifying the surface of mitochondria, comprising: a polymer backbone; a first chemical moiety conjugated to the polymer backbone, the chemical moiety comprising a peptide; and a second chemical moiety conjugated to the polymer backbone, the second chemical moiety comprising triphenylphosphine. The disclosure also provides a hydrogel comprising a plurality of hydrogel particles, each particle comprising a first polymer crosslinked with an enzyme cleavable peptide to form a crosslinked polymer and at least one mitochondria, wherein each hydrogel particle has an average diameter no greater than 100 microns. Methods of treating a disease and / or injury in a subject by administering the hydrogel are also provided.

The invention discloses four-arm polyethylene glycol amine as well as a preparation method and application thereof, relates to the technical field of high polymer materials, and solves the problems of poor comprehensive properties such as strength, fatigue resistance and swelling resistance when traditional dual-network hydrogel is applied to preparation of a cartilage repair material in the prior art. The molecular weight of four-arm polyethylene glycol amine provided by the invention is 10 kDa or 40 kDa, four-arm polyethylene glycol, phthalimide, diisopropyl azodicarboxylate and triphenylphosphine are subjected to a Mitsunobu reaction and hydrazinolysis, and the four-arm polyethylene glycol amine with the molecular weight of 10 kDa is obtained; four-arm polyethylene glycol, phthalimide, diisopropyl azodicarboxylate and triphenylphosphine are subjected to a Mitsunobu reaction and hydrazinolysis, and four-arm polyethylene glycol amine with the molecular weight of 40 kDa is obtained. The double-network hydrogel prepared from the four-arm polyethylene glycol amine has excellent comprehensive performance such as high mechanical strength, fatigue resistance, self-recovery performance and swelling resistance, and can be applied to preparation of cartilage-like materials.

This invention provides a high-solids anti-rust primer suitable for all seasons and its preparation method. The anti-rust primer comprises component A and component B. Component A includes the following raw materials in parts by weight: 30-40% bisphenol F epoxy resin, 1-10% reactive diluent, 1-8% liquid carboxyl-terminated nitrile butadiene rubber (CTBN), 0.1-0.3% triphenylphosphine, 0.1-0.6% dispersant, 0.2-0.6% defoamer, 1-5% modified chopped glass fiber, 40-50% pigments and fillers, 0.7-1.3% thixotropic agent, and 3-5% solvent. Component B includes the following raw materials in parts by weight: 50-70% amine curing agent, 2-5% hyperbranched epoxy resin, and 25-45% modified ketimide curing agent. The anti-rust primer of this invention has the advantages of high solids content and high flexibility, and can be applied to damp surfaces and in ambient temperatures ranging from -10 to 40°C. Furthermore, the prepared anti-rust primer, as a coating, can be used as a rust-preventive primer for multiple parts of the ship, from the bottom to the hull, and has significant benefits in improving ship painting efficiency and reducing fugitive VOC emissions during the painting process.

The invention discloses a preparation method of beta-carotene. The preparation method comprises the following steps: dissolving an aqueous solution of 3-methyl-5-(2, 6, 6-trimethyl-1-cyclohexene-1-yl)-2, 4-pentadienyl triphenylphosphine salt (C15 phosphine salt) and 2, 7-dimethyl-2, 4, 6-octtriene-1, 8-dialdehyde (C10) cis-trans isomer in a solvent, carrying out wittig reaction under the action of alkali, and carrying out isomerization to obtain the product. By controlling the proportion of C10 cis-trans isomers of the reaction system, the content of the C25 aldehyde intermediate can be reduced, and the reaction yield and the product quality can be improved.

The invention provides a perovskite quantum dot compound and a preparation method and application thereof. The preparation method of the perovskite quantum dot compound comprises the following steps: preparing a mixture containing a triphenylphosphine halide copolymer, carrier particles, a first cationic precursor and a second cationic precursor; the A comprises one or more of CH3NH3 +, CH3CH2NH3 +, (CH3) 2CHNH3 +, CH (NH2) 2 +, Ar-CH3CH2NH3 +, Li < + >, Na < + >, K < + >, Rb < + > and Cs < + >; b comprises one or more of Pb < 2 + >, Sn < 2 + >, Be < 2 + >, Mg < 2 + >, Ca < 2 + >, Sr < 2 + >, Ba < 2 + >, Zn < 2 + >, Ge < 2 + >, Fe < 2 + >, Co < 2 + > and Ni < 2 + >; x comprises one or more of Cl <->, Br <-> and I <->; after the reaction is finished, a powdery or granular perovskite quantum dot compound is obtained, perovskite quantum dots are dispersed in a triphenylphosphine halide copolymer, and the triphenylphosphine halide copolymer coats the surfaces of carrier particles. The preparation method is low in cost, energy-saving and simple.

The application discloses a green preparation method of a medium-chain acylated hydroxytyrosol lipoid-triphenylphosphine derivative and application of the derivative in mitochondrial-targeted antioxidation, and relates to the following steps: taking hydroxytyrosol and saturated halogenated fatty acids with medium-chain length C8-C12 as raw materials, and synthesizing a medium-chain hydroxytyrosol lipoid compound through a low-field ultrasonic coupling immobilized lipase synergistic directional alcohol hydroxyl acylation reaction; and further synthesizing the lipoid compound through high-speed stirring reaction with a triphenylphosphine compound to obtain a medium-chain acylated hydroxytyrosol lipoid-triphenylphosphine derivative. The derivative has the antioxidation effect of mitochondrial-targeted enrichment and active oxygen radical scavenging. The hydroxytyrosol derivative prepared by the application has the characteristics of green efficiency, directional bonding and simple operation. The acylation reaction of hydroxytyrosol does not need to involve flammable and explosive, easily oxidized and corrosive concentrated sulfuric acid and concentrated nitric acid, and the medium-chain acylated hydroxytyrosol lipoid-triphenylphosphine derivative has mitochondrial targeting, can be used as a potential mitochondrial nutritional supplement product, and has a wide application prospect in the health care functions of anti-aging, cardiovascular protection, diabetes prevention and the like.

The invention relates to the field of organic light-emitting materials, and mainly relates to a piezochromic organic light-emitting material and a preparation method and application thereof. A preparation method of the piezo-chromic organic light-emitting material comprises the following steps: synthesizing an intermediate; mixing the intermediate, 4-(diphenylamino) phenylboronic acid, tetrakis (triphenylphosphine) palladium, tetrabutylammonium bromide, alkali and a reaction solvent, and performing heating reaction to obtain a second mixture; and extracting, drying, concentrating and purifying the second mixture to obtain the piezochromic organic luminescent material. The piezochromic luminescent material disclosed by the invention has the characteristics of single force stimulation induction of multicolor change, piezoluminescence enhancement and crystalline phase-to-crystalline phase conversion function; the luminescent material also has the advantages of low raw material cost, simplicity and convenience in synthesis, wide application environment, multicolor reversible switching and high contrast ratio, is an excellent force stimulation response type luminescent material, and can be used for pressure detection, sensors, information storage devices, anti-counterfeiting materials, memory materials or biological probes.

The invention relates to a method for preparing triphenylphosphine, which comprises the following steps: a diphenylphosphine chloride raw material is subjected to heat treatment at the temperature of 280-420 DEG C to prepare triphenylphosphine, and at least part of phenylphosphine dichloride is removed in the heat treatment process.

The application discloses preparation of carbazolyl 3,5-dicyanopyridine derivatives, room temperature phosphor and anti-counterfeiting performance thereof. The preparation method comprises the following steps: adding ortho-, meta- or para-carbazolyl benzaldehyde and malononitrile into a reaction bottle, stirring and reacting under room temperature conditions with sodium hydroxide as a catalyst and anhydrous methanol as a solvent, and obtaining ortho-, meta- or para-carbazolyl 3,5-dicyanopyridine by separating and purifying the reaction crude product. Crystals of the three compounds are obtained by a solvent diffusion method with dichloromethane-petroleum ether as a solvent, and the crystal state room temperature phosphor material is obtained. The crystals are doped with urea / triphenylphosphine at a weight ratio of 1:100, the doped crystals are uniformly ground and mixed, and then heated to be molten, so that the host-guest doped phosphor material is obtained, and the novel material is used in the field of anti-counterfeiting patterns.

The invention discloses a synergistic photodynamic-photo-thermal tumor treatment method realized by near-infrared two-region aggregation-induced emission nanoparticles, and belongs to the field of cancer treatment by using aggregation-induced emission materials. The preparation method of the near-infrared second-region aggregation-induced emission photosensitive compound comprises the following steps: mixing a compound 1, a compound 2, tetrakis (triphenylphosphine) palladium and potassium carbonate in a mixed solution of tetrahydrofuran and water, and performing reflux reaction to obtain a compound 3; and mixing the compound 3 and the compound R2 in acetic anhydride, and reacting to obtain the near-infrared second-region aggregation-induced emission photosensitive compound. Through molecular design, the multifunctional photosensitizer integrating NIR-II excitation, efficient I-type PDT, ultra-efficient PTT and AIE characteristics is successfully prepared, and a brand new technical scheme is provided for solving the hypoxia bottleneck in tumor treatment and achieving efficient collaborative treatment.

The application belongs to the technical field of lithium secondary batteries, and discloses a lithium secondary battery electrolyte with high and low temperature performance and a lithium secondary battery.The electrolyte comprises a non-aqueous solvent, a lithium salt, a triphenyl phosphine alkenyl compound and a compound with a carbonyl group.The electrolyte of the application is formed by the joint action of the triphenyl phosphine alkenyl compound and the compound with a carbonyl group, wherein the triphenyl phosphine alkenyl compound can be reduced in preference to the solvent, and the compound with a carbonyl group can form a thin and uniform SEI film on the positive and negative electrode surfaces of the lithium secondary battery through synergistic action, complex with positive transition metal ions, passivate the positive electrode surface, inhibit metal dissolution, improve the low-temperature rate discharge performance of the battery, and improve the normal temperature and high-temperature cycle life.

Four-arm polyethylene glycol amine and preparation method and application thereof, relate to the technical field of high polymer materials, and solve the problem of poor comprehensive performance such as strength, fatigue resistance and swelling resistance when the traditional double network hydrogel is applied to the preparation of cartilage repair materials in the prior art. The four-arm polyethylene glycol amine provided by the application has a molecular weight of 10 kDa or 40 kDa. Four-arm polyethylene glycol, phthalimide, diisopropyl azodicarboxylate and triphenylphosphine are subjected to Mitsunobu reaction and hydrazinolysis to obtain four-arm polyethylene glycol amine with a molecular weight of 10 kDa. Four-arm polyethylene glycol, phthalimide, diisopropyl azodicarboxylate and triphenylphosphine are subjected to Mitsunobu reaction and hydrazinolysis to obtain four-arm polyethylene glycol amine with a molecular weight of 40 kDa. The double network hydrogel prepared from the four-arm polyethylene glycol amine has excellent comprehensive performance such as high mechanical strength, fatigue resistance, self-recovery and swelling resistance, and can be applied to the preparation of cartilage-like materials.

The application discloses an ionic liquid polymer catalyst and a preparation method and application thereof, and relates to the field of ionic liquid polymer catalysts. The catalyst is obtained through polymerization reaction of a vinyl functionalized triphenylphosphine ligand, a vinyl functionalized triphenylphosphine ionic liquid and a metal source; wherein the vinyl functionalized triphenylphosphine ionic liquid is obtained from the vinyl functionalized triphenylphosphine ligand. The ionic liquid polymer catalyst has more excellent catalytic performance and better substrate universality, the preparation method is simple, flue gas can be directly used as a CO2 source, and the CO2 does not need to be purified, so that energy is effectively saved and the environment is protected; meanwhile, the cycloaddition reaction condition is mild, green and pollution-free; the yield of the product cyclic carbonate is as high as 99%, and the ionic liquid polymer catalyst shows good prospects for solving the problems of reactivity, good universality, difficulty in recycling of the catalyst, serious loss of active metals and ligands and other problems in a multiphase cycloaddition reaction.

The present invention provides a silicone hydrogel contact lens formulation, comprising a polymerizable siloxane component, a hydrophilic N-vinyl amide monomer, triphenylphosphine (TPP) and one or more of anthraquinone blue tinting agent, a benzophenone UV-absorbing agent or a benzotriazole HEVL absorber; a silicone hydrogel contact lens formed from the polymerisation of the silicone hydrogel contact lens formulation; and the use of an anthraquinone blue tinting agent, a benzophenone UV-absorbing agent and / or a benzotriazole HEVL absorber to stabilise a formulation comprising a polymerizable siloxane component, a hydrophilic N-vinyl amide monomer and TPP.

The application relates to the technical field of high polymer composite materials, and particularly discloses a resin applied to motor rotor carbon fiber winding and a preparation method thereof. The resin comprises the following raw materials: 40-60 parts of a tetrafunctional phenolic epoxy resin, 20-40 parts of a biphenyl type epoxy resin, 15-20 parts of a core-shell rubber, 0.1-0.2 parts of triphenylphosphine, 20-25 parts of a curing agent, 0.5-1 part of an accelerator, 3-5 parts of nano fillers, 1-2 parts of a silane coupling agent and 5-8 parts of an active diluent. The resin prepared by the application has excellent high-temperature resistance and high elongation at break, and can be applied to motor rotor carbon fiber winding.

The invention discloses a preparation method of a conjugated microporous polymer and application of the conjugated microporous polymer in degradation of bisphenol A, and relates to the field of conjugated microporous polymers. The invention aims to solve the problems of high catalyst cost, poor stability, low utilization rate of active substances and limitation on large-scale industrial application in the catalytic degradation of bisphenol A by using a catalyst in the prior art. The structural formula of the conjugated microporous polymer is shown in the specification. The method comprises the following steps: 1, adding 1, 3, 6, 8-tetrabromo pyrene, 1, 3, 5-triacetylene benzene, tetrakis (triphenylphosphine) palladium and cuprous iodide into a mixed solvent of N, N-dimethylformamide and triethylamine to obtain a mixed solution; 2, hydrothermal reaction; and 3, cleaning and drying. According to the application of the conjugated microporous polymer to adsorption and / or degradation of bisphenol A in water, the method is simple and easy to operate, the degradation efficiency is high, the mineralization rate is high, the conjugated microporous polymer is repeatable, the use cost is low, and the conjugated microporous polymer is suitable for large-scale popularization and application.

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 belongs to the technical field of chemical analysis and detection, and provides a bimodal fluorescent probe and a preparation method and application thereof in hypochlorous acid detection, the chemical formula of the bimodal fluorescent probe is C68H44N2, and the preparation method comprises the following steps: weighing 2, 7-dibromo-9-fluorenone, 1-(4-phenylboronic acid pinacol ester)-1, 2, 4-triazole-1-one, 2, 4-triazole-1-one, 2, 4-triazole-1-one, 2, 4-triazole-1-one, 2, 4-triazole-1-one, 2, 4-triazole-1 The preparation method comprises the following steps: putting 1, 1, 2-triphenylethylene, a tetra (triphenylphosphine) palladium catalyst and potassium carbonate into a three-neck flask; sequentially injecting methylbenzene, absolute ethyl alcohol and water; carrying out heating reflux reaction, cooling to room temperature, carrying out extraction separation by using dichloromethane, collecting an organic phase, drying, carrying out rotary evaporation concentration to obtain a crude product, and purifying to obtain TPEO; dissolving TPEO and malononitrile in anhydrous dimethyl sulfoxide under the protection of argon, heating and stirring to react, cooling to room temperature, carrying out suction filtration, and washing the precipitate; the bimodal fluorescent probe can be applied to detection of hypochlorous acid, and has the advantages of specific selectivity, high sensitivity, wide detection concentration, high accuracy and the like.

This invention discloses a method for preparing 4-(trifluoromethylsulfinyl)pyrazole compounds, comprising: dissolving terminal alkyne in n-hexane under nitrogen atmosphere, adding anhydrous zinc chloride, and reacting trifluoromethylsulfinyl chloride to obtain α-trifluoromethylalkynyl sulfoxide; adding benzoyl chloride dropwise to a CH2Cl2 solution of phenylhydrazine and triethylamine under nitrogen atmosphere to obtain acylhydrazine; adding carbon tetrachloride to a suspension of acylhydrazine and triphenylphosphine in acetonitrile to obtain hydrazone chloride; and reacting α-trifluoromethylalkynyl sulfoxide, hydrazone chloride, potassium carbonate, and anhydrous ethanol at room temperature to obtain 4-(trifluoromethylsulfinyl)pyrazole compounds. This invention uses inexpensive and readily available raw materials, the entire reaction route is mild and simple to operate, does not require stringent reaction conditions, and most of the reaction process is carried out at room temperature. The product yield is high, and the prepared trifluoromethylalkynyl sulfoxide pyrazole structure has multiple derivatization sites, showing good application prospects.

The invention discloses an oxidative coupling preparation method of a nitrogen / phosphine double-site conjugated polymer organic positive electrode material and application of the nitrogen / phosphine double-site conjugated polymer organic positive electrode material in an alkali metal-based battery. The nitrogen / phosphine double-site conjugated polymer with a permanent porous structure and a hierarchical network is prepared by enabling a triphenylamine derivative monomer and triphenylphosphine to react for 24-48 hours in an organic solvent (such as chloroform and nitromethane) under the protection of inert gas and the action of a catalyst (such as FeCl3 or AlCl3) through a Scholl oxidative coupling reaction and directly copolymerizing the triphenylamine derivative monomer and the triphenylphosphine in the organic solvent (such as chloroform and nitromethane) at the temperature of 0-30 DEG C, and the nitrogen / phosphine double-site conjugated polymer with the permanent porous structure and the hierarchical network is obtained. A typical embodiment of the present invention is named P (PZ2TPA-TPP). The polymer has high-density nitrogen and phosphorus active sites, triphenylamine and triphenylphosphine units are synchronously introduced into the structure, a difunctional site network for synergistically accelerating anion transmission is formed, and the technical bottlenecks of low ion transmission efficiency, poor rate capability, insufficient cycle stability and the like of a traditional organic positive electrode material are effectively improved. The material can be used for preparing a positive plate, and shows high working voltage (about 3.79 V), high specific capacity (-135mAh g <-1 >), excellent cycling stability (the voltage is not obviously attenuated after 200 times of cycling) and excellent rate capability (the voltage is still kept about 100mAh g <-1 > under 10Ag <-1 >) in a lithium dual-ion battery. After the lithium double-ion total battery is further assembled, under a high-load condition (gt; 2 mg cm <-2 >) shows long cycle life (600 times of cycle stability), high energy density and practical application potential, for example, the material can supply power to a smart phone in real time. The preparation process is simple and convenient, the yield is high (up to 88%), and the method is suitable for alkali metal-based batteries of lithium, sodium, potassium and the like, and has important scientific significance and industrial application value.

The invention relates to the field of composite soft plastic packaging, in particular to a dynamic self-repairing type high-toughness bio-based degradable film and a preparation method and application thereof. The film is composed of a lactic acid high polymer, a copolymer of butylene adipate and butylene terephthalate, a compatibilizer, a nucleating agent, a catalyst, an auxiliary agent and an antibacterial agent, the catalyst is formed by mixing a main catalyst and a co-catalyst, the main catalyst comprises any one of zinc acetylacetonate, ferric acetylacetonate, antimony trioxide and zinc oxide, and the co-catalyst comprises any one of zinc acetylacetonate, ferric acetylacetonate, antimony trioxide and zinc oxide. The cocatalyst is selected from any one of triethylamine, triphenylphosphine and aluminum acetylacetonate. The invention provides an effective scheme for solving the core contradiction that the strength, toughness, repairability and controllable degradability of a bio-based material are difficult to consider at the same time, is expected to replace traditional plastics in the fields of high-end environment-friendly packaging, intelligent agricultural mulching films and the like, and has great environmental benefits and industrialization prospects.