69 results about "2,2,2-Trifluoroethanol" patented technology

The invention belongs to the field of batteries, and particularly relates to an electrolyte and a semi-solid battery. The electrolyte comprises a lithium salt, a solvent and an additive, the additive comprises a solvent additive; the solvent additive comprises a low HOMO energy level solvent; preferably, the solvent with the low HOMO energy level is 2, 2, 2-trifluoroethanol (TFEA), and the solvent with the low HOMO energy level is 2, 2, 2-trifluoroethanol (TFEA). According to the electrolyte disclosed by the invention, by adopting the solvent additive with low HOMO energy level, the stability of the battery under high voltage can be effectively improved, an electrolyte-electrode interface is protected, the dissolution of transition metal is inhibited, electrolyte side reaction caused by moisture, free acid and transition metal is reduced, and the performance of the battery in a high-temperature storage test is improved; meanwhile, the cycle life and the rate capability of the battery are improved.

The invention relates to a method for continuously synthesizing methyl trifluoroethyl carbonate through three-stage series connection, which comprises the following steps of: reacting dimethyl carbonate and chlorine in the presence of an activated carbon loaded ferric trichloride catalyst, introducing into a gas-liquid separator after the reaction is ended, separating to obtain reaction feed liquid a and unreacted chlorine, and returning the unreacted chlorine to continue the reaction; sufficiently mixing a 50wt% sodium hydroxide solution, trifluoroethanol and the reaction material liquid a, and then carrying out constant-temperature reaction to obtain a reaction material liquid b; methanol and the reaction feed liquid b are fully mixed for a reaction, after the reaction is finished, a reaction product is taken out, a lower-layer methyl trifluoroethyl carbonate crude product is obtained through separation and then rectified and purified in a rectifying tower, and finally high-purity methyl trifluoroethyl carbonate is obtained. Through the design of the micro-channel reactor and the gas-liquid separator, use and recovery of chlorine are effectively controlled, and the safety risk is reduced; meanwhile, the separation cost is low, the energy consumption is reduced, and the high-purity methyl trifluoroethyl carbonate is obtained.

The present invention belongs to the field of functional materials and relates to the preparation and application of titanium oxide cluster compounds and ionic titanium oxide cluster polymers as precursors. p-TiO2 is prepared by solvent thermal reaction using 4-dimethylaminobenzoic acid as a ligand. 4 ‑N titanium oxide cluster compounds were prepared into 0.5 mg / mL 2,2,2‑trifluoroethanol solution and used as the electron transport layer of solar cells. The energy conversion efficiency of the prepared device reached 17.3%. 4 ‑N as a precursor, and further reacted with 1,4‑dibromo‑2‑butene to prepare an ionic titanium oxide cluster polymer p‑Ti 4 ‑N‑Br was prepared into a 0.9 mg / mL 2,2,2‑trifluoroethanol solution and used in the preparation of devices for the electron transport layer of solar cells. The energy conversion efficiency was increased to 17.9%. The material has good film-forming properties, and the prepared solution is not very sensitive to concentration and film thickness, which will help promote the commercialization of solar cells.

The invention discloses a porous protein heat-insulating fiber with a core-shell structure as well as a preparation method and application of the porous protein heat-insulating fiber. A protein solution is converted into a core layer structure and a shell layer structure with gradient pores through a coaxial spinning method by utilizing the phase separation difference of the protein solution caused by using a urea aqueous solution and trifluoroethanol as solvents, the shell layer is mainly composed of finger-shaped macropores, the core layer is of a uniform small-pore structure, and the shell layer and the core layer are tightly combined through a compact connecting layer. By regulating and controlling the spinning solution concentration, the coagulating bath exchange rate and the needle size, accurate construction of a hierarchical pore structure in the fiber is achieved, and the process is similar to a core-shell heat insulation mechanism of polar bear hair in the nature. The porous protein fiber with the core-shell structure shows excellent heat insulation performance and mechanical strength, has biodegradability and washing resistance, and is suitable for the high-efficiency heat insulation fields of intelligent clothing, building energy conservation, aerospace and the like.

The invention discloses a preparation method of a cyanoborate lithium salt derivative, which comprises the following steps: 1, mixing an alcohol compound, a lithium source compound, a boron source compound and trimethylsilyl cyanide in a polar organic solvent, and filtering after complete reaction to obtain a cyanoborate crude product filtrate; the alcohol compound is selected from one of 2, 2, 2-trifluoroethanol, 2, 2-difluoroethanol, 2-fluoroethanol, 3-hydroxypropionitrile, allyl alcohol and propargyl alcohol; the lithium source compound is selected from one of lithium carbonate and lithium hydroxide; the boron source compound is selected from one of boric acid, diboron trioxide and boron tribromide; the reaction temperature is controlled to be 0-120 DEG C; and 2, adding an inert organic solvent into the cyanoborate crude product filtrate for crystallization, and performing vacuum drying to obtain a finished product of the cyanoborate lithium salt. The method has the advantages of high yield and purity, simple process, convenience in operation and low cost, and is extremely suitable for industrial production.

The application discloses a coating material, an antifog and antifouling coating with a surface microstructure array based on the coating material and a preparation method of the coating. Raw materials of the antifog and antifouling coating material include SBMA, TFEMA, BPA and a polymerization initiator; the preparation method of the coating comprises the following steps: S1), preparing a PDMS mold with a surface microstructure array: preparing single-layer silica balls, transferring the single-layer silica balls to a PDMS film surface, and obtaining the PDMS mold after washing away the silica balls; S2), synthesizing the coating material; S3), preparing a polymer coating: injecting a trifluoroethanol solution of the coating material into the PDMS mold and covering the PDMS mold with a base material, stripping the mold after ultraviolet curing, and obtaining the antifog and antifouling coating. The antifog and antifouling coating in the application has high transparency, strong adhesion, excellent antifog and antifouling performance, good biocompatibility, and certain application value on medical endoscopes.

The application discloses a cyclohexane-fused masked 2-pyridone compound and a preparation method and application thereof, and relates to the technical field of organic synthesis. The preparation method comprises the following steps: taking a simple and easily obtained substituted cyclohexane cyclopentadienyl ester as raw material, taking iodobenzene diacetic acid as an oxidant, taking ammonium carbamate as a nitrogen source, taking magnesium oxide and water as additives, taking chloroform and 2,2,2-trifluoroethanol as mixed solvents, and reacting at room temperature to obtain the cyclohexane-fused masked 2-pyridone compound. The application has the advantages of mild reaction condition, simple operation, high yield, wide reaction substrate range and the like, and does not need to use a metal catalyst, does not need to be heated and does not need to be operated in a water-free and oxygen-free manner. The cyclohexane-fused masked 2-pyridone compound prepared by the application has a good inhibiting effect on plant pathogenic fungi, and can be used for the prevention and treatment of tomato gray mold, cereal scab, rapeseed sclerotinia, pepper pythium blight and grape cavity disease.

The invention relates to the technical field of chemistry and chemical engineering, in particular to an ultrasonic-promoted tembotrione acid preparation method which comprises the following steps: in the presence of inorganic base, performing substitution hydrolysis on bromide and trifluoroethanol in an organic solvent A under the promotion of ultrasonic waves; after the reaction is finished, distilling and recovering the organic solvent A, and if the organic solvent B is the same as the organic solvent A, omitting the distilling step; adding water and an organic solvent B into the distilled reaction product, if the organic solvent B is the same as the organic solvent A, not adding the organic solvent B, standing for layering, and extracting a water layer by using the organic solvent B; combining organic phases, and recycling and reusing by distillation; combining water phases, adjusting the pH value to 1-2 by using hydrochloric acid, filtering and washing to obtain a tembotrione acid product; according to the present invention, the reaction speed is improved so as to shorten the reaction time, improve the reaction selectivity, and reduce the impurity generation so as to improve the reaction yield;

The invention discloses a simple synthesis method of 2, 2, 2-trifluoroethyl ether, and belongs to the field of organic synthesis. According to the synthesis method, the easily available 2, 2, 2-trifluoroethanol, trifluoromethanesulfonic anhydride / trifluoromethanesulfonyl chloride and the like are directly adopted to synthesize the 2, 2, 2-trifluoroethyl ether in one step under the action of organic alkali and under the conditions of normal temperature and normal pressure, dangerous metal / high temperature and high pressure / gas delivery is not involved, the preparation cost of the 2, 2, 2-trifluoroethyl ether is greatly reduced, and the synthesis method is suitable for an industrial production route.

This non-aqueous electrolyte secondary battery comprises: an electrode assembly including a positive electrode, a negative electrode, and a separator; and a non-aqueous electrolyte including a non-aqueous solvent and an electrolyte salt dissolved in the non-aqueous solvent. The non-aqueous electrolyte contains a fluorine-containing chain carboxylic acid ester represented by formula 1 and a trifluoroethanol. The fluorine-containing chain carboxylic acid ester is contained in an amount of at least 10 vol % with respect to the volume of the non-aqueous electrolyte excluding the electrolyte salt, and the trifluoroethanol is contained in an amount of 0.1-2 mass % with respect to the mass of the fluorine-containing chain carboxylic acid ester. [Formula 1] RCOOCH2CF3, wherein R is a C2 or lower alkyl group, or a fluoroalkyl group.

The invention discloses an artificial nano-enzyme based on conformation engineering as well as a preparation method and an application of the artificial nano-enzyme, polypeptide which is in a random conformation in a free state can be coupled to nano-particles in an alpha-helical conformation manner, so that the artificial nano-enzyme has a conformation-related function. The preparation method comprises the following steps: S1, adding 2, 2, 2-trifluoroethanol and a stabilizer into a polypeptide solution, and incubating; s2, in the presence of 2, 2, 2-trifluoroethanol, coupling the polypeptide with the nanoparticles; and S3, removing the 2, 2, 2-trifluoroethanol by a freeze drying method to obtain the artificial nano-enzyme based on conformation engineering. The method is simple and convenient to operate, the experiment time is shortened, and the reaction efficiency is improved; moreover, the experimental conditions are milder, the energy demand of a laboratory is effectively saved, and the cost requirements on experimental equipment and environment are lower.

The invention belongs to the technical field of all-solid-state lithium metal batteries, and particularly relates to a fluorinated modified polyvinylidene fluoride-based solid electrolyte and a preparation and application method thereof, and the preparation method comprises the following steps: 1) uniformly mixing shell membrane powder and trifluoroethanol, placing in an air dry oven for reaction, taking out, washing, centrifuging, and drying and grinding the obtained solid; 2) stirring and dissolving the fluorinated shell membrane powder, a lithium salt and polyvinylidene fluoride in a mixed solvent of dimethylacetamide, anhydrous acetonitrile and tetrahydrofuran to obtain a polymer electrolyte containing the fluorinated shell membrane powder; uniformly coating in a carrier, standing to form a film, and drying to obtain a finished product after the film is formed. The method has the advantages that the interface contact is adjusted by utilizing the self structure of natural macromolecules of the shell membrane powder and the mineralization process, namely the net structure of polyvinylidene fluoride is adjusted, so that the solid polymer electrolyte is in better contact with an electrode, the growth direction of dendritic crystals is effectively adjusted, lithium deposition is uniform, and the assembled battery realizes long circulation stability.

The present application relates to the technical field of all-solid-state lithium metal battery, and particularly relates to a solid-state polymer electrolyte and a preparation method and application thereof. In the present application, trifluoroethanol is used to fluorinate eggshell membrane powder in natural eggshell, which is used as a polyethylene oxide-based solid-state polymer electrolyte additive. This can adjust the network structure of the polymer, enhance the electrochemical and mechanical performance of the solid-state electrolyte, inhibit lithium dendrite growth, and enhance the cycle performance of the lithium metal battery. The lithium ion transfer number of the improved solid-state electrolyte battery is determined by chronamperometry, and the lithium ion transfer number is higher, and it is easier to generate fluorinated lithium and lithium oxide, and better inhibit the growth of lithium dendrites. The addition of trifluoroethanol to fluorinate the eggshell membrane solid-state electrolyte in the natural eggshell makes the lithium symmetrical battery and the lithium iron phosphate full battery exhibit excellent performance in various cases.

The invention relates to the technical field of moisture detection, and provides a Karl Fischer reagent for detecting moisture content in cyclic ether compounds by coulomb voltammetry, the Karl Fischer reagent comprises the following raw materials by weight: 7-8 parts of iodine, 330-340 parts of a mixed solution, 60-70 parts of imidazole, 6-7 parts of 2-methylimidazole, and 25-35 parts of sulfur dioxide; the mixed solution comprises ethylene glycol monomethyl ether, trifluoroethanol and diethylene glycol monoethyl ether; the ratio of the weight sum of the trifluoroethanol and the diglycol ether to the weight of the ethylene glycol monomethyl ether is 1: 1; the weight ratio of the trifluoroethanol to the diethylene glycol ethyl ether is (0.5-1.5): 1. According to the technical scheme, the problems of many side reactions and low detection accuracy when the moisture content in the cyclic ether compound is detected in the prior art are solved.

The application provides a preparation method and a packaging method of isoflurane, and belongs to the technical field of halogen-containing acyclic compounds. Trifluoroethanol and difluoro-chloromethane are used as starting materials, a selective fluorine reagent and NaCl solid are added, and the trifluoroethanol and the difluoro-chloromethane are etherified. Under the action of the selective fluorine reagent, the obtained etherification intermediate is chlorinated with NaCl, the reaction temperature of etherification and chlorination is 60-120 DEG C, and one-pot isoflurane preparation without intermediate taking is carried out. The preparation method has simple steps, simple subsequent treatment, and can obtain a product with high purity.

A Ramjet solid fuel comprising up to 50% metal by weight selected from the group consisting of aluminum, boron, boron carbide, magnesium, titanium, and titanium boride; between 2.0 and 9.0 weight percent fluorinated combustion aids selected from the group consisting of 3-hydroxybenzo trifluoride (3HBTF), hydroxyfluoro-2-propanol (HF2P), polytetrafluoroethylene, and trifluoroethanol (TFE); and up to 48% by weight of the remaining component being a hydroxyl terminated, epoxidized polybutadiene polymer (Poly BD 605E) (HO—CH2-CH═CH—CH2-CH2-CH—O—CH—CH2-CH2-CH—(CH═CH2)-CH2-CH═CH—CH2-CH2-CH—O—CH—CH2-OH).

The invention discloses an industrial preparation method of metafluzamide, which comprises the following steps: step S1, reacting 4-aminopyridazine with bromoethane in the presence of a catalyst 4, 7, 13, 16, 21, 24-hexaoxo-1, 10-diazabicyclo [8.8. 8] hexacodecane and an acid binding agent to obtain N-ethylpyridazine-4-amine, and step S2, reacting 4-aminopyridazine with bromoethane in the presence of a catalyst 4, 7, 13, 16, 21, 24-hexaoxo-1, 10-diazabicyclo [8.8. 8] hexacodecane to obtain N-ethylpyridazine-4-amine; s2, reacting methyl isopropyl ketone with hydrazine hydrate to obtain 3-methylbutyl-2-subunit hydrazine, carrying out reduction reaction on the 3-methylbutyl-2-subunit hydrazine to obtain 3-hydrazino-2-methyl butane, and carrying out cyclization reaction on the 3-hydrazino-2-methyl butane and the compound as shown in the formula 1 in the presence of formic acid to obtain a compound as shown in a formula 2; s3, enabling the N-ethylpyridazine-4-amine to react with the compound shown in the formula 2 under the catalytic action of 2, 2, 2-trifluoroethanol, so as to obtain the metafluzamide. According to the present invention, the method has characteristics of simple steps, easily available raw materials, mild reaction conditions and high total yield, and is suitable for industrial production.

The invention relates to the technical field of compound preparation, in particular to a preparation process of 2, 2, 2-trifluoroethyl diphenyl sulfonium trifluoromethanesulfonate. Comprising the following steps: reacting 2, 2, 2-trifluoroethanol, formic acid and acetic anhydride, rectifying the reaction liquid, and collecting a target fraction to obtain 2, 2, 2-trifluoroethyl formate; according to the method, 2, 2, 2-trifluoroethyl formate, diphenyl sulfide and trifluoromethanesulfonic acid are subjected to a reaction, reaction liquid is cooled, solids are separated out, organic solvent washing is carried out, 2, 2, 2-trifluoroethyl diphenyl sulfonium trifluoromethanesulfonate is obtained, the purity can reach 99.7%, and the total reaction yield can reach 78.93%. The preparation process provided by the invention has the advantages of cheap and easily available raw materials, simple operation, high reaction yield, mild reaction conditions, high safety and simple reaction post-treatment, and is suitable for industrial large-scale production.

The application belongs to the technical field of material engineering, and discloses a PMMA film with controllable and reversible transparency and shape, a preparation method and application. The preparation method comprises the following steps: modifying PMMA by carboxylation to obtain carboxylated PMMA; dissolving the carboxylated PMMA in trifluoroethanol, stirring until completely dissolved after 12-24 hours to obtain a carboxylated PMMA solution; and pouring the carboxylated PMMA solution on a polyimide film, and standing until the trifluoroethanol solution is completely volatilized to obtain a PMMA film. The preparation method is simple and suitable for industrialization. The obtained PMMA film has controllable and reversible transparency and shape, and can be used to prepare a PMMA material with controllable and reversible transparency and shape at low cost.

A continuous synthesis and purification method of 1, 1, 2, 2-tetrafluoroethyl-2, 2, 2-trifluoroethyl ether relates to the technical field of chemical production, and comprises the following steps: S1, in a reaction kettle, trifluoroethanol and tetrafluoroethylene are subjected to an addition reaction in the presence of a catalyst and a solvent; s2, discharging a part of the reaction liquid obtained in the step S1, and carrying out primary distillation to obtain a crude product rich in 1, 1, 2, 2-tetrafluoroethyl-2, 2, 2-trifluoroethyl ether and a primary distillation kettle bottom material rich in a catalyst, trifluoroethanol and a solvent; s3, returning at least part of the primary distillation kettle bottom material to the reaction kettle, and continuously adding new trifluoroethanol and tetrafluoroethylene into the reaction kettle to realize continuous reaction; and S4, washing and rectifying the crude product obtained in the step S2, so as to obtain a high-purity 1, 1, 2, 2-tetrafluoroethyl-2, 2, 2-trifluoroethyl ether product, namely the 1, 1, 2, 2-tetrafluoroethyl-2, 2, 2-trifluoroethyl ether. The continuous synthesis method comprises the following steps: discharging and rectifying a reaction solution by utilizing the boiling point difference of a product, a raw material and a solvent without azeotropy, and returning the raw material to a reaction kettle to continuously participate in the reaction, thereby realizing the continuous synthesis of 1, 1, 2, 2-tetrafluoroethyl-2, 2, 2-trifluoroethyl ether.

The invention discloses a catalyst for preparing formic acid through electrocatalytic reduction of low-concentration CO2, a preparation method and application, and belongs to the field of CO2 electroreduction. The catalyst is a bismuth-based catalyst modified by proton ionic liquid, the proton ionic liquid is formed by Bronsted acid-base neutralization, the base comprises 1, 8-diazabicyclo [5, 4, 0] undec-7-ene and tetramethylguanidine, and the acid comprises trifluoroethanol, acetic acid and hydrochloric acid. The cation side can be used as a proton donor in a proton / electron pair migration reaction to which CO2 electroreduction belongs, and raw material protons are promoted to be transferred to a reduction intermediate. The electronegativity of the anion side is beneficial to adsorption and activation of a reactant CO2. And anions and cations play a synergistic catalysis role, so that the catalytic reaction activity is greatly improved. A flowing electrolytic tank carrying the catalyst can directly reduce low-concentration CO2 simulating industrial emission waste gas into formic acid at room temperature and normal pressure, and separated and purified CO2 does not need to be used as raw material gas.

The present invention relates to a yellowing-resistant hot melt adhesive diaphragm for hydrogen fuel cells and a preparation method thereof, belonging to the technical field of hydrogen fuel cells. The diaphragm comprises, by weight percentage: 8.5-10 wt% of an organic-inorganic framework compound, 1.5-2.1 wt% of an organosilicon dispersant, 0.8-1.4 wt% of a nano filler, and 0.4-0.6 wt% of a coupling agent, with the balance being a casting solution resistant; the organic-inorganic framework compound is self-assembled by an in-situ polymerization method from a composite inorganic coordination matrix with a porous structure and pyrrole monomers to form an organic-inorganic network structure cross-linked with nitrogen-containing heterocycles, providing a large number of coordination sites as proton acceptors and having good proton conduction ability, and the casting solution resistant uses a substitution product of trifluoroethanol and vinylphenyl dichlorosilane as a modified monomer and is block copolymerized with low molecular weight polypropylene to introduce fluorine-containing groups to improve the aging resistance of the polymer.

The invention relates to the technical field of all-solid-state lithium metal batteries, in particular to a solid-state polymer electrolyte and a preparation method and application thereof. According to the invention, trifluoroethanol is used for fluorinating eggshell membrane powder in natural eggshells, and the fluorinated eggshell membrane powder is used as a polyoxyethylene-based solid polymer electrolyte additive. Therefore, the network structure of the polymer can be adjusted, the electrochemical and mechanical properties of the solid electrolyte are enhanced, the growth of lithium dendrites is inhibited, and the cycle capability of a lithium metal battery is enhanced. The lithium ion transfer number of the improved solid-state electrolyte battery is measured by a chronoamperometry, the lithium ion transfer number is higher, lithium fluoride, lithium oxide and the like are more easily generated, and the growth of lithium dendrites is better inhibited. According to the invention, the egg membrane solid electrolyte in the trifluoroethanol fluorinated natural eggshell is added, so that the lithium symmetric battery and the lithium iron phosphate total battery both show excellent performance under various conditions.

The invention discloses a synthesis method of (R)-1-(2-bromine-4-chlorphenyl)-2, 2, 2-trifluoroethanol, and relates to the technical field of organic synthesis.The synthesis method comprises the steps that 2-bromine-4-chlorobenzoic acid methyl ester serves as a raw material, trifluoromethylation is conducted on the 2-bromine-4-chlorobenzoic acid methyl ester, and a 2-bromine-4-chlorphenyl trifluoroethanone acetal intermediate solution is obtained; the preparation method comprises the following steps: preparing a 2-bromo-4-chlorophenyl trifluoroethanone acetal intermediate solution, carrying out ketal deprotection on the 2-bromo-4-chlorophenyl trifluoroethanone acetal intermediate solution to obtain 2-bromo-4-chlorophenyl trifluoroethanone, and carrying out chiral reduction synthesis on the 2-bromo-4-chlorophenyl trifluoroethanone to obtain (R)-1-(2-bromo-4-chlorophenyl)-2, 2, 2-trifluoroethanol. The method is low in cost, easy to operate and implement, high in yield and stable in product property.

The invention discloses a polymer antifouling coating as well as a preparation method and application thereof. The method comprises the steps of surface cleaning, preparation of a monomer solution, addition of a cross-linking agent and a photoinitiator, degassing treatment, spraying, ultraviolet irradiation, leaching, surface modification, drying and the like. According to the preparation method, ethylene glycol diacrylate (EGDA) and 2, 2-dimethoxy-2-phenylacetylbenzophenone (DMPAP) are used as a cross-linking agent and a photoinitiator, and trifluoroethanol (TFE) and perfluorooctane (PFO) are combined as solvents, so that a polymer coating with excellent antifouling performance can be prepared. After the coating is subjected to plasma treatment and chemical modification, the adhesive force and the antifouling effect can be remarkably improved, and the coating is suitable for steel plate protection in the marine environment. The application of the novel polymer antifouling coating is not limited to improvement of the antifouling performance of marine facilities, but also can be expanded to a plurality of high-tech fields such as medical health, environmental monitoring, energy production and military defense.

The invention relates to a preparation method of a lithium mono / bis (trifluoroethoxy) phosphate mixture. The method comprises the following steps: 1) dispersing phosphorus pentoxide in an organic solvent I under the protection of an inert gas atmosphere, adding trifluoroethanol, reacting at 20-50 DEG C for 3-6 hours, adding water to hydrolyze a pyrophosphate intermediate after the reaction is finished, and concentrating to obtain mono / bis (trifluoroethoxy) phosphate; and 2) reacting the mono / bis (trifluoroethoxy) phosphate with lithium carbonate in an organic solvent II at 30-70 DEG C for 4-8 hours, and after the reaction is finished, performing post-treatment to obtain the lithium mono / bis (trifluoroethoxy) phosphate mixture. According to the method, phosphorus pentoxide and trifluoroethanol are adopted as raw materials, toxic and harmful chlorination reagents are not used, and the method has the advantages of being simple in process, environmentally friendly and the like. Meanwhile, when the compound is applied to the lithium ion battery as an electrolyte additive, the electrochemical performance of the battery can be remarkably improved.

The invention discloses an anti-fingerprint hydrophobic and oleophobic coating based on a two-dimensional polymer and a preparation method of the anti-fingerprint hydrophobic and oleophobic coating, and relates to the field of coatings. Comprising the following steps: synthesizing a fluorine-containing amphiphilic monomer; synthesizing a two-dimensional amphiphilic polymer; grafting siloxane on the two-dimensional polymer: dissolving the two-dimensional polymer in trifluoroethanol, adding aminopropyl triethoxy siloxane and a condensing agent DCC, and removing the solvent after reaction to obtain an anti-fingerprint treatment agent; dissolving an anti-fingerprint treatment agent in ethyl perfluorobutyl ether to obtain a coating solution; and spraying the coating solution on a base material, and curing to obtain the anti-fingerprint hydrophobic and oleophobic coating. Through the molecular design of the two-dimensional amphiphilic polymer, the synergistic modification of the perfluorinated chain segment and siloxane and the low-cost solution process, the technical bottlenecks of the traditional anti-fingerprint coating in the aspects of wear resistance and light transmittance are successfully solved. The ultra-thin nano structure ensures the optical performance and endows the coating with industrial-grade durability at the same time.

The present application relates to the technical field of flame retardants for electrolyte solutions, and particularly relates to a cyclophosphazene compound containing a triphenylsilyl side group, and a preparation method therefor and the use thereof. At least one phenylsilyl side group is connected to a phosphorus atom in the cyclophosphazene compound, and the phosphorus atom and the phenylsilyl side group are connected by means of an oxygen atom. The structural formula of the cyclophosphazene compound is as represented by formula 1, wherein, in the formula 1, R1 is a halogen atom or a trifluoroethanol group, and R2 is at least one of a halogen atom, a trifluoroethanol group and a silicon-benzene structure. The cyclophosphazene compound can organically combine improvements in the flame retardance, the film-forming property, the overcharge prevention capability and the acid-removing capability of the electrolyte solution; and since the cyclophosphazene compound has good flame retardance, the cyclophosphazene compound can be added to an electrolyte solution at a relatively low addition amount without influencing the performance of the electrolyte solution.

The application discloses a synthesis method of an axially chiral biaryl quinoline nitrogen oxygen compound and belongs to the field of organic chemistry. With racemic 1-aryl isoquinoline nitrogen oxide 1 and acrylic ester 2 as raw materials, palladium trifluoroacetate / N-acetyl-L-alanine as a catalyst, silver carbonate as an oxidant, 1,4-p-benzoquinone and trifluoroethanol as additives, asymmetric alkenylization reaction occurs in 1,2-dichloroethane / acetonitrile mixed solvents, and two types of axially chiral biaryl quinoline nitrogen oxygen compounds are obtained. The kinetic resolution method has the advantages of good resolution effect (up to 102.7), high yield and high enantioselectivity (up to 99%), and the like, and the remaining raw material can be derived through two steps to obtain a commercial (R)-QUINAP ligand.

The invention relates to 3, 3 '-(3-dimethylamino-5-trifluoroethanol-2, 4, 6-triazine)-formamido-biphenol as well as a preparation method and application of the 3, 3'-(3-dimethylamino-5-trifluoroethanol-2, 4, 6-triazine)-formamido-biphenol, and the 3, 3 '-(3-dimethylamino-5-trifluoroethanol-2, 4, 6-triazine)-formamido-biphenol has the following structural formula as shown in the specification. Different functional groups are introduced to biphenol, a new material is obtained, and compared with a traditional biphenol material, the novel material has better electrical conductivity, abrasion resistance, moisture resistance, cold resistance and the like, and can meet the requirements of different application scenes when used as a liquid crystal material.