35 results about "Ionic composition" patented technology

To provide a chemically amplified negative resist composition having improved resolution in pattern formation and giving a resist pattern with good LER and pattern fidelity, and to provide a method for forming a resist pattern.SOLUTION: (A) a photoacid generator comprising an anion having the formula (A1) and a cation having a specific structure, and (B) a base polymer comprising a recurring unit having a specific structure with a phenolic hydroxyl group on a side chain.SELECTED DRAWING: None

The invention provides a shale primary formation water ion composition evaluation method and device. The method comprises the following steps: acquiring ion composition and tritium content of flow-back fluid in at least one time after hydraulic fracturing of a target well section of a target shale gas well; the ion composition and the tritium content of fracturing fluid used for hydraulic fracturing of the target well section of the target shale gas well are obtained; on the basis of the obtained tritium content of the flow-back fluid at each time and the tritium content of fracturing fluid used for hydraulic fracturing of the target well section of the target shale gas well, the mixing proportion of formation water in the flow-back fluid at each time is determined; and determining the ion composition of the formation water of the target well section of the target shale gas well by combining the determined mixing proportion of the formation water in the flow-back fluid at each time based on the obtained ion composition of the flow-back fluid at each time and the obtained ion composition of the fracturing fluid at each time. According to the method, the water ion composition of the primary formation of the shale reservoir can be accurately determined by utilizing the fracturing flow-back fluid ion content and tritium nuclide characteristics.

An electrolyte for a lithium-ion cyclizing battery comprises a glycerol-based ionic liquid and an ammonium-based cyclic ionic liquid. The glycerol-based ionic liquid essentially comprises equimolar amounts of a cation component, consisting of a lithium (Li+)-glycerol complex, and an anion component, consisting of an arsenate ion, a phosphate ion, a sulfonylimide ion, a borate ion, and / or a chlorate ion. The ammonium-based cyclic ionic liquid comprises a cation component, consisting of a piperidinium ion and / or a pyrrolidinium ion, and an anion component, consisting of an arsenate ion, a phosphate ion, a sulfonylimide ion, a borate ion, and / or a chlorate ion. The electrolyte has a lithium concentration greater than or equal to 0.2 mol per liter and less than or equal to 1.6 mol per liter.The electrolyte can be used in batteries that cycle lithium ions and include silicon-containing electroactive materials of the negative electrode.

To provide a chemically amplified positive resist composition containing an onium salt capable of generating an acid with small diffusion, and to provide a resist pattern forming method using the resist composition.SOLUTION: A chemically amplified positive resist composition comprising (A) a photoacid generator comprising an anion having the formula (A1) and a cation having a specific structure, and (B) a base polymer comprising a polymer comprising a recurring unit having a phenolic hydroxyl group on a side chain and adapted to be decomposed under the action of acid to increase its solubility in alkaline developer.SELECTED DRAWING: None

Disclosed is an alkali metal ion conductor which behaves as a liquid at a low temperature. The alkali metal ion conductor of the present disclosure is an alkali metal ion conductor comprising a salt, wherein the salt comprises a first cation, a second cation, and a first anion, the first cation is a tetraalkylammonium ion having an alkyl chain length of 5 or more, the second cation is an alkali metal ion, and the first anion is at least one anion selected from the group consisting of a bromine ion, a chlorine ion, and a hydrogen sulfate ion.

The invention provides methods for analyzing polynucleotides using nanopores that allow passage of single stranded polynucleotides but not double stranded polynucleotides. In accordance with some embodiments, a double-stranded product is produced that comprises a labeled strand with a single stranded tail or overhang. The double stranded product is exposed to one or more nanopores in the presence of an electric field across the one or more nanopores such that the single stranded tail may be captured and the labeled strand translocated by unzipping from the double stranded product. The ionic composition of the reaction mixture and electric field strength are selected so that nucleotides translocate a nanopore at a rate of less than 1000 nucleotides per second.

The present invention relates to an inorganic-organic hybrid compound as ionic compound, composed of an inorganic metal cation selected from [ZrO]2+, and of an organic active ingredient anion selected from gemcitabine monophosphate or gemcitabine triphosphate.

Provided is a method for producing lithium hydroxide, comprising the steps of: introducing a lithium salt solution into a salt solution compartment, and introducing water into an acidic solution compartment and a basic solution compartment; discharging, from the acidic solution compartment, a sulfuric acid solution including sulfuric acid ions separated from the lithium salt solution by an anion-selective ion exchange membrane and hydrogen ions generated by decomposing water through electrodialysis in a first bipolar membrane; discharging, from the basic solution compartment, a lithium hydroxide solution including lithium ions separated from the lithium salt solution by a cation-selective ion exchange membrane and hydroxide ions generated by decomposing water through electrolysis in a second bipolar membrane; and adding an additive to the lithium hydroxide solution discharged from the basic solution compartment to precipitate impurities and remove same.

This invention provides an onium salt used in a chemically amplified resist composition that exhibits excellent solvent solubility, high sensitivity, high contrast, and superior lithography performance such as LWR, CDU, MEF, EL, and DOF in photolithography using high-energy rays; a chemically amplified resist composition containing the onium salt as a photoacid generator; and a pattern formation method using the chemically amplified resist composition. [Solution] A sulfonium salt comprising an aromatic sulfonate anion and a sulfonium cation represented by the following formula (1B). TIFF2026076056000601.tif51140

The invention relates to a seawater-based ionic composition for the manufacture of medical devices intended for administering said composition to patients, and to restorative and soothing cosmetics, comprising a specific concentration of chloride (Cl), sodium (Na), sulfate (SO4), sulfur (S), magnesium (Mg), calcium (Ca), potassium (K), and bicarbonate (HCO3). This composition is reproducible, stable, well-tolerated, and can be used alone or in combination with other ingredients.

The invention discloses a positive and negative electrode general type vanadium-halogen flow battery electrolyte and a preparation method and application thereof, and belongs to the technical field of flow batteries. The electrolyte comprises halide ions, vanadium ions, inorganic strong acid and a complexing agent, the halide ions are bromide ions or a combination of the bromide ions and other halide ions, the other halide ions are fluorine ions and / or chloride ions, and the concentration is 1 mol / L-7 mol / L; the vanadium ions are composed of trivalent vanadium ions and tetravalent vanadium ions which are equal in molar weight, and the concentration of the vanadium ions is 1-4 mol / L; the concentration of the inorganic strong acid is 1 mol / L-7 mol / L; the complexing agent is a quaternary ammonium salt compound, and the concentration of the complexing agent is 0.1 mol / L-0. 5 mol / L. The positive and negative electrode general type vanadium-halogen flow battery electrolyte solves the problem that the capacity and efficiency of the battery are reduced due to the cross mixing phenomenon in the operation process, and capacity recovery can be realized through simple mixing of the positive electrode side electrolyte and the negative electrode side electrolyte.

The sulfonium salt consists of an aromatic sulfonate anion having the following formula (1A) and a sulfonium cation having the following formula (1B). The sulfonium salt can be used in a chemically amplified resist composition. The resist composition has a high solvent solubility, high sensitivity and high contrast, and forming a resist film with improved lithography properties such as LWR, CDU, MEF, EL, and DOF when processed by photolithography using high-energy radiation such as a KrF or ArF excimer laser beam, an electron beam (EB) or EUV.

The invention relates to an ionic liquid corrosion inhibitor and a preparation method and application thereof, the ionic liquid corrosion inhibitor is composed of N, N-dialkyl secondary ammonium cations and dodecylbenzene sulfonic acid anions, and has a general formula structure shown in the following figure. When the ionic liquid corrosion inhibitor is added into mineral oil as an oil-soluble corrosion inhibitor, steel and iron materials can be prevented from being corroded in a humid and hot atmospheric environment. The ionic liquid corrosion inhibitor has the characteristics of good oil solubility, stable micelle structure and high corrosion inhibition efficiency, and can be used as a key rust inhibition component in novel antirust oil. The oil-soluble surface active ionic liquid corrosion inhibitor based on the N, N-dialkyl-secondary ammonium ions and the dodecylbenzene sulfonate ions, provided by the invention, has the characteristics of being green, non-toxic, good in oil solubility and high in corrosion inhibition efficiency.

A method for determining interfacial tension of a hydrocarbon in a brine fluid, the method including injecting a first brine fluid into a test cell, the first brine fluid having an initial ionic composition, injecting a hydrocarbon fluid into the test cell, contacting the hydrocarbon fluid with the first brine fluid, forming a droplet, measuring the interfacial tension of the hydrocarbon fluid in contact with the first brine fluid, at least partially displacing the first brine fluid with an inert gas, measuring a ionic composition salinity of the displaced first brine fluid in an ionic chromatograph, and comparing the measured ionic composition salinity to the initial ionic composition.

The present invention addresses the problem of providing a plating solution and a plating method which have excellent uniform electrodeposition properties and are capable of forming a Ni-Cr-(Mo / W) alloy coating film with a more uniform film thickness. A plating solution for forming a Ni-Cr-(Mo / W) alloy coating film, the plating solution containing: a metal ion source containing an ion source of nickel, chromium, and molybdenum and / or tungsten; and one or more chemical species selected from the group consisting of ammonia, amines, and ammonium ions. And a method for forming a Ni-Cr-(Mo / W) alloy coating film, the method including a step for plating using the plating solution. It is preferable that the plating solution further contains a complexing agent in an amount of 0.01-4 equivalents (inclusive) relative to the total amount of the metal ion sources.

The application discloses a method for identifying weak positions of immersed tube tunnel structures in advance and related equipment, and comprises the following steps: S1, carrying out a load plate test on site to determine the stiffness of the foundation of the immersed tube tunnel; S2, analyzing the load borne by the immersed tube tunnel, including the gravity of the immersed tube tunnel and external water and soil load borne by the immersed tube tunnel; analyzing the ion composition of the water body in the water environment of the immersed tube tunnel to identify the erosive ions causing the deterioration of the immersed tube tunnel; S3, based on the identified load type, establishing a mathematical model for describing the mechanical behavior of the immersed tube tunnel under the load; based on the identified erosive ions, establishing a mathematical model for describing the chemical behavior of the immersed tube tunnel under the erosive ions; S4, establishing a three-dimensional finite element model of the immersed tube tunnel; the application can identify the weak positions of the immersed tube tunnel at the construction stage of the immersed tube tunnel, and can indicate the positions of the local anti-seepage reinforcement of the weak positions, thereby preventing a passive situation of remedying after the structure seeps water.

The invention belongs to the technical field of coordination chemistry, and particularly relates to an aldehyde group functionalized terpyridyl monatomic metal complex and a preparation method thereof, the compound is composed of a coordination unit formed by combining a central metal ion M with two aldehyde group-containing terpyridyl ligands through a coordination bond, and a balancing anion; m is one of Mn, Fe, Co, Ni, Cu, Zn, Ru, Rh, Os, Ir and Eu; the aldehyde group-containing terpyridyl ligand has a 2, 2 ': 6', 2 ''-terpyridyl skeleton, and the skeleton is connected with at least one aldehyde group; the balancing anions comprise one or more of acetate, nitrate, fluorine ions, chloride ions, bromide ions, iodide ions, hexafluorophosphate and tetrafluoroborate. By utilizing the arrangement of the methods, the invention provides the terpyridyl ligand containing the aldehyde group, which can realize secondary functional modification through the aldehyde group and can be stably coordinated with central metal to construct a monatomic metal complex.

This application relates to a temperature- and salt-resistant polyacrylamide and its preparation method, belonging to the field of polymer materials. The raw materials for preparation include the following components in parts by weight: 80-100 parts acrylamide, 46-72 parts a composite ionic composition, 3.5-5.5 parts a hydrophobic associating monomer, 2-4 parts an emulsifier, 0.05-0.15 parts an initiation system, 15-25 parts a hydrolysate, and a pH adjuster; the composite ionic composition includes 2-acrylamido-2-methylpropanesulfonic acid, sodium p-styrenesulfonate, and dodecyl dimethyl benzyl ammonium chloride. The preparation method includes the following steps: adding acrylamide, the composite ionic composition, and the hydrophobic associating monomer to water, adding an emulsifier, adjusting the pH to neutral with a pH adjuster, stirring to dissolve and deoxygenating, adding the initiation system under a protective atmosphere, stirring and reacting to obtain a polymer colloid, granulating, adding a hydrolysate, hydrolyzing, drying, and pulverizing to obtain the temperature- and salt-resistant polyacrylamide. This application has the effect of improving the salt resistance and temperature resistance of polyacrylamide.

The invention discloses a stably dispersed molten salt or salt solution nanofluid and a preparation method thereof. The nanofluid comprises a dispersion system and an additive, the dispersion system is a molten salt or a salt solution and is an inorganic salt composed of cations and acid radical ions, the additive at least comprises one or more compounds with a general formula I or salts thereof, and the additive further comprises a functional nanomaterial. According to the invention, a dopa compound is used as a precursor and is added after molten salt is melted or dissolved, and spontaneous oxidation and self-assembly of the dopa compound are accelerated by using cations in the molten salt to form polymer particles. Salt cations are complexed with functional groups with negative electricity on the surfaces of the particles and adsorb anions to form a thick double-electrode layer, so that the surface charge density and zeta potential are remarkably improved, agglomeration and sedimentation are inhibited, and stable dispersion is realized.

The invention relates to the field of polypeptides, in particular to an adipose tissue targeted MRI (Magnetic Resonance Imaging) developing agent. The invention provides an adipose tissue targeted MRI (Magnetic Resonance Imaging) developing agent, which is characterized in that the MRI developing agent has the following structure: [X]-L-P, wherein P is a polypeptide, and the polypeptide is selected from a group consisting of SEQ ID NOs: 1 to 15; l is an attachment joint, and the attachment joint comprises amino acid and / or amino acid derivatives; [X] is a paramagnetic metal complex, and the paramagnetic metal complex is composed of a chelating agent and paramagnetic metal ions. The MRI developing agent provided by the invention not only can accurately and specifically target and locate adipose tissues of a living body, but also can visualize visceral fat, so that the fat distribution condition of the living body is displayed.

The present disclosure relates to a double salt, a preparation method therefor, and a pharmaceutical composition containing same. More specifically, the present disclosure relates to a double salt consisting of magnesium ions, monovalent metal cations, phosphate ions, optional hydrogen phosphate ions, and optional hydroxide ions. The present disclosure further relates to a method for preparing the double salt, a pharmaceutical composition containing the double salt, a kit containing the pharmaceutical composition, the use of the double salt in the preparation of a drug for reducing the level of ammonia and / or ammonium ions and / or urea in the blood and / or digestive tract of a subject and preventing and / or treating a disease or condition associated therewith, and a method for preventing and / or treating a related disease or condition.

The application discloses a photosensitive resin composition and a preparation method thereof, a metal circuit and a manufacturing method and application thereof, and belongs to the technical field of electronic device materials. The preparation raw material of the photosensitive resin composition provided by the application comprises a functional monomer, an acrylic ester monomer, a crosslinking agent, a photoinitiator and a light absorber; the functional monomer is an ionic compound composed of a quaternary ammonium cation and a fluorosulfonylimide anion; and the quaternary ammonium cation comprises an ultraviolet light curing group. The photosensitive resin composition provided by the application can effectively improve the platability of the photosensitive resin composition, finally improves the accuracy of the size of a subsequent metal conductive pattern, and the stability of the conductivity. The application further provides a preparation method of the photosensitive resin composition, a preparation raw material, a metal circuit comprising the photosensitive resin composition, a manufacturing method of the metal circuit, and the application of the photosensitive resin composition and / or the metal circuit.

The invention relates to the technical field of perovskite solar cell interface modification, in particular to a preparation method of a perovskite solar cell based on quaternary ammonium salt type zwitterionic defect passivation, and the method comprises the following steps: sequentially forming an electron transport layer, a perovskite light absorption layer, an interface passivation layer, a hole transport layer and a metal electrode layer on the surface of a conductive substrate. The quaternary ammonium salt is composed of nitrogen cations connected with four alkyl groups and paired anions of the nitrogen cations. The material has a permanent positive ion characteristic, an interface reconstruction behavior occurs on the surface of the perovskite in the subsequent annealing process, and the negative ion and positive ion defects on the surface of the perovskite can be passivated at the same time; the large steric hindrance characteristic can effectively hinder ion permeation, and the environmental stability of the film is improved. The quaternary ammonium salt disclosed by the invention is used for an interface modification material to realize excellent defect passivation by virtue of unique zwitterionic characteristics, so that a high-quality interface is constructed. The interface has a lower defect state, stronger chemical bonding and higher thermal stability.

The present invention relates to an iron nanocluster that can be designated using the formula "FeNC@HisAcAsc", having the following properties: - its surface is covered with a mixed layer comprising histidine (His), acetate ions (Ac) and ascorbate ions (Asc); - it is spherical; - it has a hydrodynamic diameter in the range of 0.6 to 2.0 nm, preferably less than 1.0 nm; - it has a metal core diameter in the range of 0.5 to 1.5 nm, preferably less than 1.0 nm; - the nanocluster exhibits a stability period in the range of 5 to 20 weeks when stored in liquid form at a temperature of 4°C; - the nanocluster exhibits a stability period of at least 12 months, preferably 12 to 18 months when stored in dry form at a temperature of 4°C under nitrogen; - it exhibits spectrophotometric characteristics in the UV-visible spectrum with a shoulder at 300±15 nm and in the fluorescence spectrum with an excitation wavelength of 364±15 nm and an emission wavelength of 415±15 nm. The present invention also relates to a method for preparing said iron nanoclusters and to their use in treating iron deficiency.

Described herein are methods for reducing or preventing blood flow in a neurovascular blood vessel of a subject. The method involves injecting a composition composed of water, one or more polycationic polyelectrolytes and anionic counterions and one or more one polyanionic polyelectrolytes and cationic counterions, wherein the composition has an ion concentration that is (i) sufficient to prevent association of the polycationic polyelectrolytes and the polyanionic polyelectrolytes in water and (ii) greater than the concentration of ions in the subject. Upon introduction of the composition into a subject, a solid is produced in situ. The injectable compositions have unique distal penetration properties, which make the injectable compositions described herein very useful as embolics for neurovascular blood vessels.

The application discloses a kind of surface charge controllable nanofiltration membrane and preparation method thereof, belong to water treatment technical field.The nanofiltration membrane with polysulfone ultrafiltration membrane as base film, by slit coating head coating casting solution containing oligomer, active diluent etc., after ultraviolet light solidification, again alternately immersed in polycation and polyanion electrolyte solution and is handled to prepare coating layer.The nanofiltration membrane prepared by the application compared with prior art, through simple through ultraviolet irradiation solidification reaction makes oligomer crosslinking solidification, forms stable functional layer;The application replaces high-temperature heat treatment with ultraviolet solidification, energy consumption is low, preparation cost reduces;Electrostatic adsorption coating step is simple, suitable for industrial production;The application is suitable for different ion composition of salt lake brine through the alternate adsorption of polyelectrolyte coating;Optimization to different valence ion selective separation.Summarized above, the surface charge controllable nanofiltration membrane prepared by the application, in salt lake brine lithium extraction field, has important application value.

The application discloses a water quality identification system and method based on multi-component ion mobility deviation characteristics. The system adopts a three-layer architecture of a hardware perception layer, an algorithm analysis layer and a performance application layer. The hardware perception layer collects TDS, pH, EC and temperature signals in real time through a multi-parameter integrated sensor array. The algorithm analysis layer includes a binary matrix model module, a nonlinear jump detection module and a dynamic thermal transient response module. The ion component type is identified by calculating the conductivity response deviation factor D of different ion components. The critical jump point of the performance mutation of the reverse osmosis membrane is captured as the filter core life warning criterion through the concentration gradient incremental test. The water samples with similar static conductivity but different ion compositions are distinguished through the thermal pulse excitation test. The performance application layer converts the analysis results into a multi-dimensional characteristic fingerprint radar chart and a performance evaluation report. The system is also provided with an adaptive correction module, which can automatically correct the judgment criteria when deployed across regions.

The invention relates to methods for preparing aqueous solutions of mineral salts with a composition corresponding to that in equilibrium with solid rock minerals under the target conditions of the experiment. The technical result achieved by implementing the invention is to provide the possibility of obtaining a model of formation water with a composition closest to real formation water at target values of temperature and pressure, without the need for water sampling in the field. In accordance with the proposed method of preparation of the formation water model, a rock sample containing soluble hard skeleton minerals and / or salt deposits in the pore space, which was initially saturated with formation water and contains at least one area that has not been exposed to drilling fluid, is taken from the formation. The amount and composition of soluble sediments in the collected sample and the water saturation of the sample under reservoir conditions are determined. At least one internal region in the sample, not exposed to the drilling fluid, is selected and a three-dimensional digital model of the selected region is built, reflecting the pore structure and spatial arrangement of minerals. The water solubilization chemical reactions for all water-soluble minerals found in the sample are set. Numerical modeling of the initial saturation of the sample under study with water is carried out, taking into account the dissolution of minerals included in the sample at the required temperature and pressure until equilibrium is reached. The final ionic composition of the aqueous solution saturating the pore space of the numerical model after equilibrium is reached is determined, and the solution is prepared by dissolving the calculated amount of salts in the calculated amount of water while stirring. The resulting salt solution is brought to the required thermobaric conditions.

A method for synthesizing an aluminosilicate molecular sieve with SWY framework topology via an interzeolite conversion is described. The method includes (1) preparing a reaction mixture containing an aluminosilicate zeolite with FAU framework topology, a structure directing agent comprising 1-methyl-1-[7-(trimethylammonio)heptyl]piperidinium cation, a source of alkali metal cations, a source of hydroxide ions, and water, and (2) heating the reaction mixture to obtain an aluminosilicate molecular sieve with SWY framework topology.