547 results about "Straight chain" patented technology

The invention provides a fluorosilane modified gemini surfactant and a preparation method thereof, a resistance reducing agent and a preparation method thereof, and a polymer fracturing fluid. The fluorosilane modified gemini surfactant has a structure as shown in a formula I, wherein R1 is selected from one or a combination of more than two of saturated alkyl, alkylaryl, alkylalkyloxy, alkylacyl and unsaturated alkyl with 1-8 carbons, and R2 is selected from one or a combination of more than two of alkyl, alkylaryl, alkylalkyloxy, alkylacyl and unsaturated alkyl with 1-8 carbons; (CF2) the number of n in n is 1 to 18; x <-> is Br <-> and / or I <->; and R2 is selected from one or a combination of more than two of straight-chain saturated alkyl, branched-chain saturated alkyl, alkylaryl, alkylalkoxy, alkyl ester group and unsaturated alkyl with 1-8 carbons. According to the invention, the fluorosilane modified gemini surfactant is used as a hydrophobic monomer of the resistance reducing agent, so that the synthesized resistance reducing agent has a single-head and double-tail gemini surfactant structure, the tackifying and sand-carrying capabilities are improved, and the surface and interface tension of a gel breaking solution and reservoir rocks is reduced.

The present invention provides an electronic or electrical device or component thereof comprising a cross-linked polymeric coating on a surface of the electronic or electrical device or component thereof; wherein the cross-linked polymeric coating is obtainable by exposing the electronic or electrical device or component thereof to a plasma comprising a monomer compound and a crosslinking reagent for a period of time sufficient to allow formation of the cross-linked polymeric coating on a surface thereof,wherein the monomer compound has the following formula:where R1, R2 and R4 are each independently selected from hydrogen, optionally substituted branched or straight chain C1-C6 alkyl or halo alkyl or aryl optionally substituted by halo, and R3 is selected from:where each X is independently selected from hydrogen, a halogen, optionally substituted branched or straight chain C1-C6 alkyl, halo alkyl or aryl optionally substituted by halo; and n1 is an integer from 1 to 27; and wherein the crosslinking reagent comprises two or more unsaturated bonds attached by means of one or more linker moieties and has a boiling point at standard pressure of less than 500° C.

The invention belongs to the field of petrochemical engineering, and discloses a bimetallic Ni-Pt / RFE hydroisomerization catalyst and a preparation method and application thereof. The preparation method comprises the following steps: dissolving a nickel precursor in water, stirring until clarification, and dropwise adding ammonia water to obtain a mixed solution 1; rFE is added into the mixed solution 1, the pH value is adjusted to be 9-11.5, suction filtration, washing and drying are conducted after stirring, and Ni / RFE is obtained; dissolving a platinum precursor in water, stirring until the solution is clear, and dropwise adding ammonia water to obtain a mixed solution 2; and adding the Ni / RFE into the mixed solution 2, adjusting the pH value to 9-11.5, stirring, and carrying out suction filtration, washing, drying and roasting to obtain the Ni-Pt / RFE. The method is simple and convenient to operate and mild in condition, the catalyst activity and the isomerization efficiency are remarkably improved through the synergistic effect of Ni and Pt, the catalyst preparation cost is greatly reduced while the use amount of precious metal is reduced, efficient conversion of long straight-chain alkane can be achieved, and the isomerization conversion rate of n-dodecane within 60 minutes can reach nearly 90%.

The invention provides an aqueous zinc ion battery electrolyte, a preparation method thereof and a zinc ion battery, and belongs to the technical field of aqueous zinc ion batteries. The aqueous zinc ion battery electrolyte comprises an additive, an inorganic zinc salt and a solvent, the additive comprises at least one of trimethylamine substituted by 1-3 substituent groups, benzene and C3-C10 straight-chain alkane, and the substituent groups comprise phosphonic acid groups or phosphinic acid groups; the solvent comprises a sodium chloride aqueous solution. By adopting the additive with a specific structure and the solvent containing the sodium chloride aqueous solution, the cycle performance of the zinc negative electrode in the water-based zinc ion battery can be remarkably improved, and the service life of the water-based zinc ion battery is prolonged.

The invention provides a vanadium-based metal organic framework material as well as a preparation method and application thereof, and belongs to the technical field of metal organic framework materials. The vanadium-based metal organic framework material is of a three-dimensional framework structure formed by connecting a one-dimensional vanadium oxygen chain and a squaric acid ligand through coordinate bonds. The preparation method of the vanadium-based metal organic framework material comprises the following steps: adding a vanadium source and an organic ligand into an acidic aqueous solution for solvothermal reaction to obtain the vanadium-based metal organic framework material, and the organic ligand is squaric acid. The vanadium-based metal organic framework material provided by the invention can be used for separating straight-chain alkane and isomers thereof.

[Problem] To provide a stabilizer for suppressing generation of silane from a polysilane composition and a method for suppressing generation of silane. To provide a method for inactivating a polysilane, and a polysilane inactivated treatment composition.[Means for Solution] A stabilizer represented by the following formula for suppressing generation of silane from a polysilane composition: CH2═CH—R1 wherein R1 is C3-20 linear, branched or cyclic alkyl group, C2-15 linear or branched alkenyl group or C7-20 aryl group substituted with alkenyl group.[Selected Drawing] None

The present application relates to the field of high polymer material, and particularly relates to a preparation method of ultra-high molecular weight polyethylene film, which has the following steps: after ultra-high molecular weight polyethylene resin and solvent are configured into a uniform suspension, the suspension is sent into a double screw extruder to obtain a high temperature melt, the melt is passed through a metering pump and a slit die, and is cooled and shaped by a polished cold roller to obtain a gel film, then the solvent in the film is removed by extraction, the film after extraction is dried by hot air, and finally the film is synchronously or stepwise bidirectionally hot stretched to obtain the ultra-high molecular weight polyethylene film. The present application adopts a new wet process route of dissolving folded chain lamellae and retaining straight chain lamellae in the preparation process of the ultra-high molecular weight polyethylene solution, and makes the straight chain crystals be kept in the preparation process of the ultra-high molecular weight polyethylene film, so that the resin content in the solution in the preparation of the ultra-high molecular weight polyethylene film is greatly improved, and the production efficiency is greatly improved.

The invention provides a phosphorus-nitrogen coordinated metallocene compound and a preparation method and application thereof, the compound has a structure as shown in a formula I: in the formula I, M is selected from IVB group metals in the periodic table of elements; r1 is selected from hydrogen, halogen, C1-C10 direct or branched alkyl, and C1-C3 alkoxy; r2 is selected from hydrogen and C1-C6 straight chain or branched chain alkyl; y is selected from chlorine, C1-C3 alkyl substituted or unsubstituted by trimethylsilyl, and amino substituted by trimethylsilyl. The phosphorus-nitrogen coordinated metallocene compound provided by the invention has relatively high thermal stability, catalytic activity and comonomer insertion rate, and can realize high-temperature solution polymerization of ethylene and norbornene.

This application relates to electrolytes and electrochemical devices. The electrolyte comprises an active material and a solvent; the active material comprises a polytert-amine-substituted biphenylquinone compound with an oxidation state as shown in Formula I; in Formula I, each R1 is independently a C2-C10 branched or straight-chain alkyl group, and each R2 is independently a C1-C5 straight-chain alkylene group. The active material in the above electrolyte, including a polytert-amine-substituted biphenylquinone compound with a specific structure, possesses high potential, structural stability, and two-electron transfer characteristics, making it less prone to cross-membrane crosstalk leading to battery capacity decay. When the electrolyte containing this active material is used in electrochemical devices such as flow batteries, long-term stable operation can be achieved. Furthermore, the preparation process of this type of biphenylquinone compound is green, simple, low-cost, and easily industrialized, facilitating widespread use. Formula I

The invention relates to the technical field of photosensitive coatings, and particularly discloses high-flexibility photosensitive solder resist ink and a preparation method thereof. The high-flexibility photosensitive solder resist ink provided by the invention comprises a main agent and a curing agent, the main agent comprises a growth straight chain carboxyl-containing resin solution; the growth straight-chain carboxyl-containing resin solution is prepared by carrying out ring-opening reaction on epoxy resin, introducing beta-(acryloyloxy) acid and then carrying out esterification reaction with acid anhydride; the curing agent comprises thermosetting resin and a toughening agent; the thermosetting resin comprises biphenyl epoxy resin, and the flexibilizer is aliphatic epoxy resin. The composite effect of the straight-chain carboxyl-containing resin solution, the specific thermosetting resin and the flexibilizer is improved, the flexibility of a liquid photosensitive solder resist ink curing film can be obviously improved, and meanwhile, the liquid photosensitive solder resist ink has good chemical gold resistance and soldering resistance and is particularly suitable for a flexible circuit board.

This invention relates to a 1,3,4-thiadiazole peptide deformylase inhibitor and its preparation and application. The structural formula is shown in formula (1): wherein, R 1 It is n-butyl or cyclopentylmethyl; R 2 The compounds are hydrogen-containing, straight-chain alkanes, cyclic alkanes, aromatic rings, substituted biphenyls, or heterocyclic rings. The 1,3,4-thiadiazole peptide deformylase inhibitors provided by this invention can effectively inhibit bacterial protein synthesis, thereby achieving sterilization. These compounds exhibit excellent inhibitory activity against Gram-positive drug-resistant bacteria, especially the clinically challenging methicillin-resistant Staphylococcus aureus (MRSA). In particular, some preferred compounds show inhibitory activity 4-8 times that of the control standards vancomycin and linezolid. The 1,3,4-thiadiazole peptide deformylase inhibitors provided by this invention also exhibit inhibitory activity against Gram-negative drug-resistant bacteria, especially against drug-resistant Acinetobacter baumannii, known as "superbugs," with an inhibitory activity reaching 0.5 μg / mL, far superior to vancomycin and linezolid.

The present application provides a reversible thermochromic microcapsule pigment which is easily changed to a colored state from a colorless state by heating at a temperature in a living environment temperature range or a temperature close to a daily life temperature, and is sensitively recovered to the colorless state again. The reversible thermochromic microcapsule pigment of the present application is formed by enclosing a reversible thermochromic composition in a microcapsule, the reversible thermochromic composition comprising (A) an electron-donating colored organic compound, (B) a 4-hydroxybenzoic acid ester compound represented by the following general formula (1) as an electron-accepting compound (in the formula, R represents a linear or branched alkyl group having 12 to 22 carbon atoms), (C) a chain hydrocarbon compound or the like as a reaction medium in which reversible electron transfer reactions based on the above (A) and (B) occur, (D) a linear dibasic acid compound having 3 to 22 carbon atoms, and (E) an aromatic hydrocarbon compound or the like having a melting point of 50°C or higher.

A composition for producing polyurethane foam contains a polyisocyanate component and a polyol component, wherein the composition additionally contains at least one organic compound V which contains at least one radical RA selected from the group consisting ofwherein * denotes the bond to the remaining portion of the at least one organic compound V, and wherein R1 are independently of one another identical or different and selected from H or branched or linear alkyl radicals having 1 to 30 carbon atoms which optionally also contain heteroatoms.

The invention discloses an emulsion polymer which contains a structural unit A, a structural unit B, a structural unit C and a structural unit D. The structural unit A has a structural unit shown in a formula (1), the structural unit B has a structural unit shown in a formula (2), the structural unit C has a structural unit shown in a formula (3), and the structural unit D has a structural unit shown in a formula (4). The weight percentage of the structural unit A is 5-15%, the weight percentage of the structural unit B is 2-40%, the weight percentage of the structural unit C is 10-70%, the weight percentage of the structural unit D is 1-80%, and the viscosity average molecular weight of the emulsion polymer is 30 million to 30 million; wherein R is an alkyl group, preferably a straight chain alkyl group or a branched chain alkyl group of C6-C18.

This invention discloses a ruthenium catalyst supported on a phosphine-containing porous organic polymer and its preparation method. The phosphine-containing porous organic polymer serves as both a support and a solid ligand. The phosphine-containing porous organic polymer ligand is a random copolymer, and its structure can be represented by general formula I. The ruthenium catalyst supported on the phosphine-containing porous organic polymer according to this invention has a large specific surface area and contains a hierarchical porous structure, enabling efficient direct preparation of alcohols from olefins via reductive hydroformylation, and is easily recyclable. It exhibits excellent activity and regioselectivity in the direct preparation of alcohols from olefins via reductive hydroformylation, with an alcohol selectivity of nearly 90% and a high ratio of straight-chain alcohols to branched-chain alcohols.

What is described is a compound of formula Iconsisting of a compound in which R1 is a branched chain alkyl consisting of 10 to 31 carbons; R2 is a linear alkyl, alkenyl, or alkynyl consisting of 2 to 20 carbons; L1 and L2 are the same or different, each a linear alkylene or alkenylene consisting of 2 to 20 carbons; X1 is S or O; R3 is a linear or branched alkylene consisting of 1 to 6 carbons; and R4 and R5 are the same or different, each a hydrogen or a linear or branched alkyl consisting of 1 to 6 carbons; or a pharmaceutically acceptable salt thereof.

This invention discloses an amino compound containing a carbazole derivative and its synthesis method, as well as a perovskite solar cell and its preparation method, belonging to the field of solar cell technology. The general chemical formula of the amino compound of this invention is as follows: Wherein: R1 is a straight-chain alkyl group, with 3 to 4 carbon atoms; R2 is a straight-chain alkyl group, with 3 to 4 carbon atoms. Based on the introduction of long-chain alkyl groups and carbazole groups, both water and oxygen barrier properties and electron transport capabilities can be improved simultaneously, thereby enhancing the stability and photoelectric conversion efficiency of perovskite solar cells and solving the problem of poor stability in existing perovskite systems.

A comb polymer has the structure (I) wherein a + b + c + d + e = 100 mol%; each of d and e is optional so long as at least one of d and e is greater than zero; n is 1 to 300, wherein when n is > 1, the -O-CHR6-CHR7- groups are the same or different; each of X, X1 and X2 is O or NH; R1 is a C1-C32 linear or branched hydrocarbyl group or aryl group; R2 is -S-R11-Si(OR')3; R3 is H a C1-C32 linear or branched hydrocarbyl group or aryl group; each of R4 and R5 is H or CH3; each of R6 and R7 is H or a C1-10 hydrocarbyl; each of R8 and R9 is H or CH3; R10 is C1-10 hydrocarbyl; R11 is a C1-C32 linear or branched hydrocarbyl group or aryl group; and m is 0 or 1.

This invention relates to toners. A toner comprises toner particles containing a binder resin, wherein the toner particles further comprise a compound represented by formula (1) and a pigment having a quinacridone structure; wherein, in formula (1), R represents a straight-chain or branched alkyl group having 4 to 22 carbon atoms, and n is an integer from 1 to 4.

This invention discloses a ligand, its preparation method, and its application, belonging to the field of hydrometallurgical technology. The ligand provided by this invention has a main ring containing pyridine and pyrazole, and branched chains of C4, C8, and C6. 12 Straight-chain alkyl or branched C 12 Alkyl groups. When used in combination with other extractants, this ligand effectively improves the separation coefficient of nickel, cobalt, and other interfering metal ions during nickel-cobalt extraction, thereby increasing the extraction rate of nickel and cobalt, and also improving the separation coefficient between nickel and cobalt. This invention also provides a method for preparing the above-mentioned extractant and its applications.

The present application relates to a compound represented by chemical formula 1. [Chemical formula 1] (In chemical formula 1, R is a substitutable linear or branched C1-C20 alkyl group, a substitutable C3-C20 cycloalkyl group, or a substitutable C6-C20 aryl group, and the substitution is carried out with oxygen, nitrogen, sulfur, hydroxy, a linear or branched C1-C6 alkyl group, a C3-C20 cycloalkyl group, an C6-C20 aryl group, a halogen, or a combination thereof.)

DEPCT64 A humectant containing oil and other components for external use on the skin. In addition, a specific characteristic of this invention is that it contains an esterification product. Component A and component B, or the esterification product containing component A and component B. And the components C and the esterification products have a pH value of 0-160. Milligrams of KOH / gram and the mass ratio of fatty acid residues obtained from component B and fatty acid residues. Fats obtained from component C in fatty acid residues which make up the esterification products. Elements A, B, and C are equal to 99.9:0.1-45:55 elements. A: Polyhydric alcohols that are dipentaerythritol, erythritol, or sorbitan; B: Components. One or more fatty acids, or equal to two, selected from straight-chain saturated fatty acids with a certain number of carbon atoms. 6-10 atoms, C composition: 1 or more fatty acids, or equal to 2 types selected from fatty acids. Containing 6-28 carbon atoms (excluding element B). -----------------------------------------------------------

The invention relates to the technical field of pharmaceutical analysis, and particularly discloses a method for simultaneously determining the content of benzyl alcohol and ethyl oleate. The method for simultaneously measuring the content of benzyl alcohol and ethyl oleate comprises the following steps: S1, mixing a sample to be measured with a low alcohol aqueous solution, freezing, adding non-polar straight-chain alkane, extracting and layering to obtain a liquid to be measured; s2, an Agilent DB-WAX chromatographic column is adopted and matched with optimized chromatographic conditions such as a heating procedure, gas chromatography detection is conducted on the to-be-detected liquid, and therefore simultaneous quantitative determination of benzyl alcohol and ethyl oleate is achieved. The method provided by the invention has the advantages of simplicity and convenience in operation, high accuracy, good repeatability, strong applicability and the like, and solves the problems of poor separation degree of benzyl alcohol and ethyl oleate and low detection efficiency in the prior art.

The embodiment of the invention provides a method for preparing high-performance heavy alkyl benzene sulfonic acid barium salt by modifying a heavy alkyl benzene raw material, and relates to the technical field of synthesis of lubricating oil additives. The method for preparing the high-performance heavy alkyl benzene sulfonic acid barium salt by modifying the heavy alkyl benzene raw material comprises the following steps: S1, selecting narrow-fraction long-straight-chain alpha-olefin with the carbon number range of C10-C14 as an alkylating agent, and carrying out Friedel-Crafts alkylation reaction on the alkylating agent and benzene in the presence of a Lewis acid catalyst at the reaction temperature of 30-70 DEG C according to the molar ratio of the benzene to the alpha-olefin of 3: 1-8: 1; the reaction time is 1-4 hours, and after the reaction is completed, carrying out hydrolysis, layering and distillation purification; by physically mixing the narrow-fraction long-straight-chain alpha-olefin synthesized heavy alkylbenzene with regular structure and low branching degree with commercially available heavy alkylbenzene, the molecular homogeneity of the raw material is optimized, the reaction consistency and the salifying stability are improved on the premise of not changing the existing process, and the barium heavy alkylbenzene sulfonate product with better damp-heat and salt spray performance is prepared.

The invention discloses fine dried noodles with a low glycemic index and a preparation method of the fine dried noodles. The fine dried noodles are prepared from the following production raw materials: high-amylose corn starch subjected to alkaline hydrothermal modification and a composite structure base material, the composite structure base material is formed by compounding highland barley flour, vital gluten and wheat flour. The preparation method comprises the following steps: premixing the vital gluten and the wheat flour, and adding water for the first time to prepare a mixture 1; premixing modified starch and coarse cereal powder, and then adding water for the second time to prepare a mixture 2; and mixing the two mixtures, stirring, fermenting, rolling, cutting into strips, and drying. The invention has the following advantages: 1) through the synergistic effect of the high-amylose corn starch hydrothermally modified by the alkaline method and the composite structure base material with a specific ratio, the prepared fine dried noodles have significantly reduced glycemic index; the method has the advantages of low glycemic index, low glycemic index, low glycemic index, low glycemic index, low glycemic index, low glycemic index, low glycemic index, low glycemic index, low glycemic index, low glycemic index, low glycemic index, low glycemic index, low glycemic index, low glycemic index, low glycemic index, low glycemic index, low glycemic index, low glycemic index and good glycemic index.

The present disclosure provides a nonaqueous electrolyte containing a nonaqueous solvent and an alkali metal salt. The nonaqueous solvent contains two or more compounds selected from the group consisting of (a) a mononitrile having a molecular weight of 40-70 and (b) a chain ether or a chain carboxylate ester having a molecular weight of 70-120. A total volume fraction of component (a) and component (b) is 0.05-0.80, relative to the total volume of the nonaqueous solvent as 1.

A grease composition comprising:(i) a mineral base oil containing one or more of fatty ammonium carboxylate salts of formula (I),wherein R1 is selected from C12 to C20 saturated or unsaturated, branched or straight-chain hydrocarbyl groups; X is selected from NH, +NH2 and N—(R4)—NH3+; R2 and R4 are independently selected from C2 to C8 saturated or unsaturated, branched or straight chain hydrocarbyl groups, and may be the same or different; R3 is selected from C12 to C26 saturated or unsaturated, branched or straight-chain hydrocarbyl groups; and n is 1 or 2; and(ii) a simple lithium soap thickener,wherein said lubricating grease composition is prepared by a process comprising the steps of combining the mineral base oil with the one or more fatty ammonium carboxylate salts of formula (I) and then thickening said base oil fatty ammonium carboxylate salt mixture with the simple lithium soap thickener.

To provide a polycarbonate polyol composition, etc., that can provide a polyurethane film with a long pot life, excellent handling properties, good appearance, and excellent weather resistance. [Solution] A polycarbonate polyol composition comprising a polycarbonate polyol having terminal hydroxyl groups, a compound represented by the following formula (A), and a compound represented by the following formula (B), wherein the mass ratio of compound (A) to compound (B) ((A) / (B)) is 0.0001 to 0.1000. JPEG2026091284000019.jpg10170 (In the above formula, R1 is hydrogen or an alkyl group having 1 to 12 carbon atoms, and R2 is an alkylene group having 1 to 12 carbon atoms.) JPEG2026091284000020.jpg11170 (In the above formula, R3 is an alkylene group having 2 to 12 carbon atoms, and may be a linear alkylene group, a divalent alicyclic hydrocarbon group, or a branched alkylene group.)

The present invention aims to provide an anti-wear agent having a high anti-wear effect and a lubricating oil composition containing the anti-wear agent. The present invention relates to an anti-wear agent containing a copolymer (A) that contains, as essential constituent monomers: a monomer (a) represented by the following formula (1); and a monomer (b) represented by the following formula (2), a weight ratio (b / a) of the monomer (b) to the monomer (a) in the copolymer (A) being 0.0005 to 0.12, the formula (1) being as follows:wherein A1 is a polymerizable group; —X1—, —X2—, and —X3— are each independently a group represented by —O— or —NH—; R1 is a C1-C4 alkylene group; R2 is a C2-C20 alkylene group; R3 is a hydrogen atom, a linear or branched C1-C44 alkyl group, a phenyl group having a linear or branched C1-C44 alkyl group, an acyl group having a linear or branched C1-C44 alkyl group, or a benzoyl group having a linear or branched C1-C44 alkyl group; and p is an integer of 1 to 100, where when p is 2 or more, a plurality of R2's are the same as or different from each other and a plurality of X3's are the same as or different from each other, the formula (2) being as follows:wherein R4 is a hydrogen atom or a methyl group; —X4— is a group represented by —O— or —NH—; R5 is a C1-C4 alkylene group; and —X5— is a group represented by —O— or —NH—.

A compound represented by formula (I) (R1 and R2 are hydrogen atoms, and R3-R7 are each independently a hydrogen atom, a halogen atom, a linear, branched or cyclic alkyl group, or the like).