66results about How to "Synthetic method is simple" patented technology

The invention relates to ZSM-5 molecular sieve with small crystal grains and application thereof, mainly solving the technical problems that the silica-alumina molar ratio (SiO2 / Al2O3) of ZSM-5 molecular sieves with small crystal grains is less than 200, and the traditional ZSM-5 molecular sieves have poor catalyst stability and short service life when used for reaction for preparing propylene from methanol in the prior art. The invention well solves the problems by the technical scheme that the ZSM-5 molecular sieve with small crystal grains, which has a crystal diameter less than 300 microns and a SiO2 / Al2O3 molar ratio not less than 200, is used for reaction for preparing the propylene from the methanol. The invention can be used in industrial production for preparing the propylene from the methanol.

The invention relates to a method for making esterification in ion liquid [Hmim](+)BF4(-), i,e, methyl imidazole salt tetrafluoroborate which can be used as solvent and catalyst. in the esterification reaction the fatty acid or aromatic acid and straight chain alcohol or branched chain alcohol are undergone the processes of stirring, heating, standing still and gravity settling so as to obtain the esterified product. Its conversion rate is 80-100%, its selectivity is 100%, and its conversion rate is high, and its catalyst can be repeatedly and circularly used, etc.

The present invention discloses lubricating oil, a lubricating oil additive and a preparation method therefor, and belongs to the technical fields of functional materials and preparation thereof. The lubricating oil provided by the present invention consists of the following raw materials: with the total number of parts being 100, 98-99.75 parts of base lubricating oil and 0.25-2 parts of a lubricating oil additive. The lubricating oil additive is a sulfur- or chlorine-filled ZIF-8 material. The lubricating oil additive provided by the present invention is simple in preparation method, convenient and easy in application, and stable in performance. Application of the lubricating oil additive product provided by the present invention can effectively improve the bearing capability of the lubricating oil.

The invention relates to a preparation method for hyperbranched polyurethane. The said method includes carrying out a reaction of diisocyanate and oligomer diol to obtain macromolecule A2, and then carrying out a polymerization reaction of the macromolecule A2 and monomer bB2 to prepare hyperbranched polyurethane. The method enhances the ratio of soft chain to obtain a hyperbranched polyurethane with good performance. The source of raw material used is wide, and cheap and easy to get. The synthesis method is simple without the introduction of protection groups, and easy to industrial production. The prepared hyperbranched polyurethane can be used for elastomer, adhesives, paints, and so on, and has a broad application prospect.

The invention relates to a preparation method of a network-like carbon-loaded iron-based compound material and an application of the network-like carbon-loaded iron-based compound material in a lithium-sulfur battery, and belongs to the field of electrochemistry; the method comprises the following steps of taking slightly oxidized graphene as a substrate, taking ferric nitrate nonahydrate as an iron source, taking glucose hydrothermal carbon as a carbon source of iron carbide and a pore-forming substrate, taking ammonia gas generated in the high-temperature pyrolysis process of melamine as a nitrogen source of an iron-nitrogen compound, and meanwhile, enabling ammonia to corrode the glucose hydrothermal carbon substrate to generate a net-shaped structure. The method has the beneficial effects that 1) the process is simple, and the product cost is low; 2) the obtained positive electrode material has a rich hole structure and ion and electron transport channels, the conductivity of the material can be improved, and the loss of the polysulfide compound can be effectively inhibited, the stability of the electrode material is remarkably improved, and the electrochemical performance is improved; and 4) the adsorption and catalysis of the polysulfide compound are achieved by utilizing the synergistic effect of the iron carbide and the iron-nitrogen compound, and the catalytic action can be used for accelerating the reaction dynamics of the lithium-sulfur battery, so that the transition of the soluble polysulfide compound to insoluble sulfide is accelerated, and the shuttle effectis greatly inhibited.

The invention discloses a reactive halogen-free organic phosphate ester flame retardant, a flame-retardant polyurethane elastomer and a preparation method thereof. The flame retardant BBHP is prepared with butanol, phosphorus oxychloride and 1, 4-butanediol. The BBHP is then mixed with 1, 4-butanediol and polyether polyol and reacts with MDI (isocyanate) to prepare the flame-retardant polyurethane elastomer. The invention has the advantages that raw materials are inexpensive and can be obtained easily, the operation is simple, the solvent needs not to be recycled, the subsequent treatment is easy, and the production cost is low. The method is an effective method for preparation of permanently flame-retardant polyurethane elastomers and has significant economic and social benefits.

A catalyst for preparing aldehyde by dicyclopentadiene hydroformylation reaction is composed of an active component as a water soluble salt of rhodium, an auxiliary agent as a water soluble salt of cobalt or manganese, a water soluble ligand as sodium triphenylphosphino-3-sulphonate (TPPTS) and a phase transfer agent as hexadecyl trimethyl ammonium bromide (CTAB), wherein the concentration of Rh3+ in the active component is 5.0x10-4M~4.0x10-3M, the mol ratio of Co2 or Mn2 of the auxiliary agent with Rh3 is 0.2~1. The catalyst is simple in preparing method, easy for separating from reaction product and is reusable, which selectivity is greatly increased by adding the auxiliary agent, and the catalyst is also applicable for preparing various aldehydes, which carbon atomic number add one, by olefin hydroformylation.

The invention relates to a coumarin azole compound with antimicrobial activity and pharmaceutically acceptable salt thereof, wherein the coumarin azole compound has a structural general formula shown in the specifications. The invention also relates to a preparation method of the coumarin azole compound and the pharmaceutically acceptable salt of the coumarin azole compound. The method comprises the following steps of: synthesizing an intermediate compound, namely 7-hydroxy coumarin by using substituted phenols and acyl acetic acid ester as raw materials; reacting the 7-hydroxy coumarin with dihalide to obtain a haloalkyl / aralkyl / aryl-cumarin intermediate; reacting the haloalkyl / aralkyl / aryl-cumarin intermediate with a series of azole compounds to obtain the coumarin azole compound; and converting the coumarin azole compound into nitrate, hydrochloride or acetate. The invention also relates to the medicinal application of the coumarin azole compound, the pharmaceutically acceptable salt of the coumarin azole compound, and a medicinal composition of the coumarin azole compound and the pharmaceutically acceptable salt of the coumarin azole compound.

The invention belongs to the technical field of nano material science and molecular biology, and particularly relates to a ratio-type nano silicon quantum dot fluorescence probe and a preparation method and application thereof. The preparation method comprises the steps that a one-pot method is adopted, triaminopropyl-triethoxysilane is reduced with sodium ascorbate at room temperature, and water-soluble silicon quantum dots are obtained; the water-soluble silicon quantum dots and chlorin e6 (Ce6) are mixed and subjected to standing at the room temperature under the lucifugal condition, and a silicon quantum dot and chlorin e6 composite material is obtained. The composite material emits fluorescence with the wavelength of 430 nm-580 nm and the wavelength of 640 nm-680 nm under the fluorescence excitation of 410 nm, and active oxygen radicals can specifically quench fluorescence of silicon quanta and basically have no influence on fluorescence of Ce6. Therefore, the composite material can serve as a ratio-type nano silicon quantum dot fluorescence probe to be used for detecting the content of hydroxyl radicals (-OH), rapidness and high efficiency are achieved, the specificity is high, the sensitivity is high, the probe is used for in-vivo cell imaging, the biocompatibility is good, and the visual degree is high.

The invention discloses a temperature sensitive polymer material with biodegradability and biocompatibility. A preparation method of the material comprises the following steps of: firstly synthesizing monomers with specific structures by using the basic raw materials including lysine, tartaric acid, and malic acid, and carrying out polymerization reaction on the monomers with different ingredients to prepare the heterochain type polymer material. The polymer not only has good temperature sensitivity, but also has good biodegradability and biocompatibility. The preparation method disclosed by the invention is simple and easy to implement and has good industrial prospect.

The invention relates to a method for synthesizing polysilicate flocculant, belonging to the field of the synthesis of flocculant. According to the method, the alkali metal silicate and the metal salt are used as synthesizing raw materials, the sodium silicate solution is prepared according to the concentration (weight percentage content) of the silica, the mass of the needed metal salt is calculated according to the molar ratio of corresponding metal and silicon and the metal salt solution is prepared, the silicic acid and metal salt is synthesized, the acid is added to adjust the pH value, and the activation is carried out to obtain the polysilicate flocculant. The polysilicate flocculant prepared by adopting the method has the advantages of easy polymerization, large alum, high settling speed and the like. The settling time of the polysilicate flocculant prepared by the method is longer than that of the polysilicate flocculant prepared by adopting the general method.

The invention discloses a preparation method and application of a polyacrylic acid hydrogel adsorbing material. The polyacrylic acid hydrogel adsorbing material is characterized in that crylic acid serves as a monomer, N,N'-methylene bisacrylamide serves as a cross-linking agent, ammonium persulfate serves as an initiator, sodium hydrogen sulfite serves as a coagulant aid, and the polyacrylic acid hydrogel adsorbing material is formed by free radical polymerization. By means of the preparation method and application, the synthetic method is simple and convenient, the requirement for the reaction condition is low, the price of raw materials is low, and utilization and popularization are facilitated; synthesis and adsorbing operation steps are simple and convenient; the polyacrylic acid hydrogel adsorbing material can effectively absorb heavy metal ions such as uranium and copper so as to achieve the aim of reasonably treating waste water; and the optimal adsorption conditions can be obtained by adjusting the different initial concentration, the optimal PH and the absorbing balance time.

The invention discloses a microporous coordination polymer based on cuprous diethyl triazole, with a formula of [Cu(etz)], wherein Cu is one valent copper ion, etz is anion of 3,5-diethyl -1,2,4-triazole. The polymer is in structure of three-dimentional coordination network of NbO type. The inventive microporous coordination polymer can be used to recycle organic solvent in water, to effectively separate benzene and cyclohexane, to detect toxic organic steam such as small molecular alcohols, acetonitrile and benzene. The inventive microporous coordination polymer is easy to synthesize, suitable for mass production.

The invention discloses a water-soluble polymer for emulsifying and visbreaking viscous oil and a preparation method thereof. The polymer contains three structural units: acrylamide, sodium acrylate and allyl glyceryl ether-base polyethenoxy ether-base alkane compounds; and the viscosity-average molecular weight is 1-8 million. The preparation method comprises the following steps: dissolving alkyl polyoxyethylene ether in tetrahydrofuran, dropwisely adding allyl glycidyl ether into the tetrahydrofuran solution while introducing nitrogen, and reacting at 70-80 DEG C for 5 hours to obtain the allyl glyceryl ether-base polyethenoxy ether-base alkane compounds; and dissolving the acrylamide, acrylic acid and allyl glyceryl ether-base polyethenoxy ether-base alkane compounds in water, regulating the pH value of the solution to 7 or so, introducing nitrogen for 30 minutes, heating to 40-60 DEG C, adding an initiator, and reacting for 8-10 hours. The polymer has excellent emulsifying property, and is beneficial to crude oil production, gathering and transportation; and the preparation method is simple to operate, and has the advantages of mild reaction conditions and higher yield.

The invention discloses a 25,27-di(3-methyl-thio-ethoxy thiadiazole) calix[4]arene stationary phase which is low in cost, high in content of compounded calixarene bonded stationary phase bonded amount, and stable in stability bonding layer, and is prepared by the following steps of: under the action of phase transfer catalyst ammonium tetrabutyl bromide, carrying out nitrogen protection to gamma-glycidol ether bonded silica gel and calixarene derivative sodium phenolate, and preparing the object calixarene stationary phase at 80 DEG C. The calixarene stationary phase compounded by the method in the invention is high in bonded amount, stable in boned layer, simple and easy in compounding method, low in cost, free of pollution in the compounding process and the like. The stationary phase not only has traditional ODS (Octadecylsilyl) reversion phase chromatography performance, and has containing complexing action, pi-pi action, hydrogen bonding action and dipole-dipole action because of many action sites; in a certain degree, the stationary phase in the invention has special separation performance comparing with the traditional ODS column.

The invention discloses a palladium nanoparticle catalyst supported by a porous polymer containing a Schiff base structure. The catalyst is a compound prepared by subjecting the porous polymer containing the Schiff base structure and divalent palladium ions to coordination at first and then to reduction by a reducing agent, wherein the porous polymer containing the Schiff base structure is a cross-linked copolymer of melamine monomers and dimethanal monomers; palladium nanoparticles account for 0.2 to 25% of the mass of the catalyst; and the sizes of the palladium nanoparticles are in a rangeof 1 to 10 nm. The catalyst provided by the invention is high in catalysis efficiency, and can catalyze the coupling reaction for preparation of alkynylamine from halogenoacetylene without any other inorganic salt reaction aids; and after completion of the reaction, the catalyst can be separated through centrifugation or filtering and cyclically used, so the catalyst is friendly to environment andbetter meets the requirements of sustainable development.

The invention discloses trifluralin haptens, as well as a preparation method and application thereof. The trifluralin hapten has a structural formula as shown in the specification. The six haptens are specific antibodies which have linker arms derived on amino sites, have active carboxyls, enable a body to generate high titer after being coupled with carrier protein and can be used for identifying common structures of trifluralin pesticide. The hapten compound is simple and convenient in synthesizing method, has relatively high purity, and can be applied to synthesis of antigen systems of animal immune, so that the blank in the technical field of trifluralin immunological detection method in China can be filled, and foundation is laid for further development of trifluralin immunological detection method.

The invention discloses a fluorescent probe containing tetrasthenylvinyl group and a synthesis method thereof, belonging to the technical field of fluorescent probe synthesis. The preparation method comprises the following steps: (1) adding TiCl4 to tetrahydrofuran suspension containing zinc powder, stirring, refluxing and cooling to obtain mixed solution; (2) dissolving benzophenone and 4-hydroxy-benzophenone in tetrahydrofuran and adding dropwise to the mixed solution prepared in step (1); refluxing; until the reaction is complete, quenching with water and extracting the aqueous layer with CH2Cl2; drying the organic layer, drying with anhydrous sodium sulfate, and obtaining white solid by column chromatography; (3) dissolving the white solid synthesized in step (2), 4-chloromethylstyrene and potassium carbonate in acetonitrile solvent, heating and stirring; after completion of the reaction, filtering to obtain filtrate, drying and obtaining the white solid by column chromatography. The fluorescent probe is mild in reaction conditions of the synthesis method and easy to be purified, and high in synthesis yield. In addition the fluorescent probe contains carbon-carbon double bond at the molecular tail, and is easy to modify afterwards.

An anticancer 17-hydroxy-steroid lactone medicine for treating lung cancer, breast cancer, liver cancer, leukemia, etc is disclosed. Its advantages are simple preparing process and high suppression activity to A-549, MCF-7, BEL-7402 and P388.

The invention discloses soluble aliphatic chain-containing polyimide with adjustable information memory performance, and belongs to the field of organic information memory materials. The soluble aliphatic chain-containing polyimide is characterized in that two kinds of diamine with electronic property are compounded at first, the two kinds of diamine contain aliphatic chains in different lengths, and then the two kinds of diamine are respectively in polycondensation with dicarboxylic anhydride with electron acceptor property, so that the soluble aliphatic chain-containing polyimide with the soluble aliphatic chain-containing polyimide is prepared, and the structure of the soluble aliphatic chain-containing polyimide is as shown in a formula (I) shown in the description. The soluble aliphatic chain-containing polyimide disclosed by the invention has the advantages of stable memory performance and fast response speed, and an information memory behavior of a material can be controlled by changing the length of the aliphatic chains or the variety of the diamines; the soluble aliphatic chain-containing polyimide has good solubility and is beneficial for processing of the material and preparation of memory devices; meanwhile, a compounding method of the soluble aliphatic chain-containing polyimide is simple, the yield is high, device preparation is simple and easy, the efficiency is high, and a wide application prospect in the field of information memory materials are obtained.

The invention provides a precious metal-modified carbide catalyst for preparation of hydrogen peroxide, and a preparation method and application thereof. The carbide is molybdenum carbide or tungstencarbide, wherein the molybdenum carbide is Mo2C and / or MoC, and the tungsten carbide is W2C and / or WC; the carbide is used as a carrier of the catalyst; and precious metal, which is one or more selected from a group consisting of metal palladium, metal platinum or metal gold, is used as an active component of the catalyst. The preparation method for the catalyst is an impregnation method, a coprecipitation method, a deposition-precipitation method or a sol-gel method. The invention also provides the application of the catalyst to direct synthesis of hydrogen peroxide from oxyhydrogen. The catalyst integrates the characteristics of both the precious metal and the carbide, especially the precious metal-like properties of molybdenum carbide and tungsten carbide, and the carbide is used for catalytic preparation of hydrogen peroxide, so the loading amount of the precious metal in the catalyst is reduced. The preparation method of the invention is simple and easy to implement, green, safe and non-toxic, and better meets the requirements of sustainable development.

The invention provides a hydrothermal synthesis method of a silver nanowire with a high length-diameter ratio. The method comprises the following steps of uniformly mixing a polyvinylpyrrolidone aqueous solution, a silver nitrate aqueous solution, a control agent aqueous solution and a reducing agent aqueous solution to prepare a reaction solution, wherein the concentration of silver nitrate in the reaction solution is not higher than the concentration of a control agent; and under a closed condition, carrying out hydrothermal reaction on the reaction solution to prepare a mother solution containing the silver nanowire, and carrying out subsequent treatment on the mother solution containing the silver nanowire to obtain dispersion liquid containing the silver nanowire. According to the synthesis method, the silver nanowire with the high length-diameter ratio can be prepared, and the diameter of the silver nanowire is small; and since tedious seed crystal preparation and complex condition control are not needed, the synthesis method is easy and convenient to implement and good in controllability.

The invention provides an inorganic halogenated bismuth perovskite battery, comprising a transparent conductive substrate, an electron transport layer formed on the transparent conductive substrate, aperovskite light absorption layer formed on the electron transport layer, a hole transport layer formed on the perovskite light absorption layer and an electrode formed on the hole transport layer. The material of the perovskite light absorption layer is Cs2XBiY6, wherein X=Ag, Na, K or Rb, and Y=Cl, Br or I. A preparation method of the inorganic halogenated bismuth perovskite battery is furtherprovided, which is simple and easy to repeat. A fully inorganic perovskite light absorption layer with stable physical and chemical properties is used to replace the toxic lead component in the traditional perovskite light absorption layer, which not only improves the stability of the perovskite battery in the air, but also is beneficial to the industrial production of the efficient, stable and safe perovskite battery.

The invention discloses production of an all-polymer self-supporting electrode and an application of the all-polymer self-supporting electrode in a flexible electrochemical sensor, and relates to thetechnical field of electrochemical sensors. The production comprises the following steps: a) producing a polypyrrole film with a sandwich structural formula by adopting an electrochemical polymerization method; and synthesizing a pentaerythritol ethoxylate- polypyrrole (PEE-PPy) film by adopting an electrochemical polymerization mode in an organic phase system, namely an organic electrolyte, taking a glass sheet plated with titanium and platinum in sequence as a working electrode, taking a stainless steel electrode as a counter electrode, and taking a silver wire as a reference electrode; According to the production of the all-polymer self-supporting electrode and the application of the all-polymer self-supporting electrode in the flexible electrochemical sensor, the polypyrrole compositefilm with the sandwich structural formula is used as the self-supporting electrode for detecting dopamine by the flexible electrochemical sensor, and the sensor does not need to be assembled by combining an additional current collector, a mechanical substrate, a conductive additive and the like; and dopamine detection sensitivity is high, the stability is high, and the capability of bearing long-term mechanical deformation is realized.

The invention relates to a diethylene glycol ferrous alkoxide with a three-dimensional pattern multi-stage structure and a preparation method thereof, and belongs to the technical field of self-assembly of micro-nano multi-stage structure materials. The chemical formula of the diethylene glycol ferrous alkoxide with the three-dimensional pattern multi-stage structure is FeC4H8O3. The diethylene glycol ferrous alkoxide is of 7-8 mu m microspheres with the three-dimensional pattern multi-stage structure, formed by mutual center-to-center connection and self-assembly of petal-like nano-sheets which are 1.8-2.0 mu m wide and 80-100nm thick. The diethylene glycol ferrous alkoxide has the advantages that ferric chloride hexahydrate and sodium acetate trihydrate, which are cheap and easy to obtain are taken as raw materials, ethylene glycol is taken as a solvent, the low-concentration and mild dissolution conditions of two inorganic matters in the ethylene glycol mixed solution are controlled, no surfactant is added, and a solvent thermal method is adopted for getting the diethylene glycol ferrous alkoxide with the three-dimensional pattern multi-stage structure. The synthetic method has the characteristics of simplicity, convenience, economical efficiency, environmental friendliness and the like.

The invention discloses construction and an application of a multifunctional targeted drug delivery system taking nano-diamond as a carrier. Firstly, the novel nano-diamond multifunctional targeted drug delivery system is offered, wherein in the system, the nano-diamond is taken as the carrier; the nano-diamond is bonded with targeting molecules in a covalent mode, so that targeting molecule-nano-diamond is formed, and the targeting molecule-nano-diamond is loaded with an anti-cancer drug in a non-covalent mode, so that a targeting molecule-nano-diamond-anti-cancer drug is formed. The invention also provides a synthesis method of the system, wherein the method is simple and easy to operate. Furthermore, the invention provides a three-dimensional Raman imaging technique applied to a visualnano-diamond drug delivery system and a cancer cell acting process; and precise localization of tumors can be implemented, cancer cells can be effectively killed and the visualization of an endocytosis process can be realized; therefore, the drug delivery system has an important significance for tumor treatment.

The invention discloses a heparin detection method for a copper nano-cluster based on a denatured bovine serum protein as template. The method comprises the following steps: forming a heparin detection system with a phosphoric acid buffer aqueous solution, a copper nano-cluster dispersion system and a to-be-tested sample; detecting fluorescence intensity change before and after adding the to-be-tested sample; and comparing with a standard curve to obtain the content of heparin in the to-be-tested sample. The method synthesizes the copper nano-cluster by taking the denatured bovine serum protein as the template by means of a one-pot method. The synthesized material is uniform in particle size, good in fluorescence property and stable in property, and the light-emitting position is near 642.04 nm and belongs to a near infrared area, so that interference of autofluorescence is avoided. The method can detect the heparin content directly and quickly, is wide in detection linear range and low in detection limit and has a very good application prospect in the fields of biological system detection, clinical applications and the like.

The invention provides a preparation method and electro-catalysis application of a two-dimensional chiral nickel-based metal organic framework material, which belong to the technical field of electro-catalysis. The preparation method comprises the following main preparation steps of respectively dissolving nickel salt, organic ligand thiazolidine-2, 4-dicarboxylic acid and pyridine in deionized water, uniformly mixing by ultrasonic waves, and preserving heat for 72 hours at the temperature of 100-140 DEG C, and after naturally cooling to room temperature, washing and drying to obtain the blue blocky chiral Ni-MOF electrocatalyst. The method disclosed by the invention has the advantages of low cost, simple synthesis process, no need of a surfactant to participate in regulation, high yield of reaction products and the like, and is suitable for large-scale production. When the prepared chiral Ni-MOF material is used as an electrocatalyst, the performance is stable, and the prepared chiral Ni-MOF material has excellent activity of electrocatalyzing oxidation of methanol, ethanol and n-propanol and is suitable for the field of electrocatalysis.

The invention belongs to the field of functional materials and specifically discloses a high-glossiness coating, a high-glossiness paper and a preparation method thereof. The high-glossiness coating contains kaolin, titanium dioxide, polysiloxane, adhesive, nano-crystalline cellulose, polyvinyl alcohol, a defined amount of de-foaming agent and other auxiliaries. The preparation method for the high-glossiness paper comprises the following steps: gluing the surface of a paper sheet and then coating a pre-coating material and the high-glossiness coating, in the manner of using the pre-coating material composed of components, such as kaolin, for pre-coating, and then adopting the high-glossiness coating compounded on the basis of the formula for performing knife coating, thereby acquiring thehigh-glossiness paper with high glossiness. According to the invention, the raw paper is pre-coated with the pre-coating material containing kaolin, and then the knife coating of the high-glossiness coating is performed, so that the coating volume of the high-glossiness coating (titanium dioxide) is greatly reduced. The high-glossiness coating is coated after the raw paper is glued in advance, sothat the glossiness of the high-glossiness paper can be effectively promoted.

The present invention relates to one kind of gamma-aryl substituted chiral triazole compound and its synthesis process. The compound in the structure as shown features the chiral center introduced to the gamma position of triazole. It is obtained through a chiral assistant camphor sultam induced asymmetrical process, and the process has high product yield and high antipodal selectivity.