26 results about "Phosphonium" patented technology

The application belongs to the field of natural product extraction, and particularly relates to a method for separating and purifying a flaxseed cyclic peptide from flaxseed and antioxidant application thereof. The application realizes selective enrichment of a hydrophobic cyclic peptide in an ionic liquid phase by using phosphate-quadric phosphonium cation synergistic hydrogen bond action of an ionic liquid, and saves traditional defatting and organic solvent extraction steps through three-stage purification of salting-out-dilution-precipitation.

This invention belongs to the field of polymer material preparation, specifically relating to an aqueous phase-guided self-assembly composite catalyst and a method for preparing polycarbonate. Addressing the problems of poor dispersibility and unstable active centers of inorganic co-catalysts in organic melts in existing technologies, this invention provides an aqueous phase-guided self-assembly composite catalyst. This composite catalyst possesses an ion cluster with a microstructure of "lipophilic quaternary phosphonium shell – hydration layer – inorganic core." When applied to the melt transesterification method for preparing polycarbonate, this catalyst utilizes the vaporization and expansion of water in the high-temperature melt to achieve "nano-bursting" dispersion of inorganic components, effectively solving the problems of poor dispersion and easy agglomeration of traditional inorganic co-catalysts. This system combines high activity at low temperatures with high-temperature stability, significantly shortening the polymerization time, and the resulting polycarbonate product has a narrow molecular weight distribution and an extremely low yellowness index (YI≤2.4), making it suitable for the efficient preparation of bisphenol A type and various copolymer polycarbonates.

An ethylene-vinyl alcohol (EVOH) copolymer comprising a. repeating units derived from ethylene, b. repeating units derived from vinyl alcohol, and c. repeating units represented by General Formula (I) and / or General Formula (II), wherein - L is a divalent linking group comprising not more than 20 carbon atoms; - L1 and L2 are divalent linking groups comprising the necessary carbon atoms to form a five or six membered cationic ring with A+; - A+ is a cationic group selected from the group consisting of ammonium, phosphonium and sulfonium; - R is selected from the group consisting of a hydrogen, an alkyl group, an alkenyl group, an alkynyl group, an aralkyl group, an alkaryl group, an aryl or heteroaryl group, and a five- to eight-membered cyclic group; - X- is an anion.

A phosphonium-based polymeric ionic liquid for moisture-swing direct air capture of carbon dioxide is disclosed. The polymeric ionic liquid comprises a styrene-based backbone and phosphonium groups covalently bonded to the backbone, each substituted with methyl, and bicarbonate counterions associated with the phosphonium groups. The polymeric ionic liquid adsorbs carbon dioxide under cyclic wet-dry conditions and exhibits a capture capacity of at least 500 μmol per gram. Methods of producing the polymeric ionic liquid and methods of capturing carbon dioxide using alternating humidity cycles are also disclosed.

A composition having a breaking strength of 10.0 N or more, containing a polytetrafluoroethylene, and substantially free from a compound represented by the following General Formula (3): (H—(CF2)8—SO3)qM2, wherein M2 is H, a metal atom, NR54, where each R5 may be the same or different and is H or an organic group having 1 to 10 carbon atoms, imidazolium optionally having a substituent, pyridinium optionally having a substituent, or phosphonium optionally having a substituent; and q is 1 or 2.

The application belongs to the technical field of phosphine salt catalysts and packaging, and discloses a tetraphenyl phosphonium salt high-latency catalyst and application of the catalyst in a chip packaging epoxy plastic packaging material; tetraphenyl phosphonium cations and large steric hindrance aryl organic acid anions are combined through ionic bonds in a molar ratio of 1:0.95-1.05, and the organic acid anions are selected from naphthalene ring dicarboxylic acid monoanions, diphenyl sulfonic acid anions or tert-butyl phenyl phosphoric acid anions; the catalyst has no epoxy ring opening catalytic activity, the ionic bond is quickly dissociated when the temperature reaches 160 DEG C or above, the solubility is greater than or equal to 10 wt% at 170 DEG C, the total halide content is less than 10 ppm, and the thermal decomposition temperature is higher than 220 DEG C. The application adopts an ionic structure design, solves the problems of normal temperature pre-crosslinking of existing small-molecule organic phosphine accelerators, reduction of halogen impurities to reduce device reliability, poor compatibility of microcapsule type accelerators, and complex process, is suitable for existing epoxy plastic packaging material production processes, and can be used in the field of semiconductor packaging.

The present application discloses a solar cell, an interface passivation material, a photovoltaic power generation system, and an electric device. The solar cell includes an interface passivation material, the interface passivation material including a first compound represented by chemical formula (1) and / or a second compound represented by chemical formula (2): where Ar is an aromatic group, Q is a functional group containing active hydrogen, A+ is selected from an ammonium group or a phosphonium group, X- is selected from any one of a halogen ion, a pseudohalogen ion, an oxyanion ion, a fluorine-containing borate ion, or a sulfonyl imide anion. The interface passivation material can be used in solar cells to passivate interface defects in the light absorption layer, improve carrier transport performance, and improve the photoelectric conversion efficiency and stability of the solar cell.

The application belongs to the technical field of organic photoelectric materials, and particularly relates to a phosphonium salt derivative and a light-emitting device containing the same. The material takes a phosphonium positive ion as an electron acceptor unit, can be applied to the fields of photoluminescence and electroluminescence, and can emit ultraviolet light, visible light or infrared light. The application first constructs a TADF material by taking a phosphonium positive ion as an electron acceptor unit, and the obtained TADF material has excellent performance and is suitable for being used as an electroluminescent material to prepare a high-performance OLED device.

This invention provides a polarized polyurethane with phosphonium zwitterions on its side chains and its electric field-assisted preparation method. Specifically, a novel phosphonium zwitterionic polyol is used as a functional polyol, which is then mixed with a polymer polyol in a solvent. Under the action of a catalyst, it undergoes a stepwise addition polymerization reaction with a polyisocyanate, or after chain extension and end-capping with a chain extender, the mixture is cooled, undergoes phase transition precipitation, washes, and dries under the induction and assistance of an external electric field to prepare an oriented polarized polyurethane with phosphonium zwitterions on its side chains. The oriented polarized polyurethane with phosphonium zwitterions on its side chains has hydrophilic and water-absorbing properties, antibacterial and bacteriostatic functions, as well as photoelectric and pH-responsive functions.

Manufacturing semiconductor device includes forming photoresist layer. Photoresist layer is selectively exposed to actinic radiation and developed to form pattern. Photoresist composition includes: iodine-containing sensitizer, photoactive compound, polymer. Iodine-containing sensitizer includes ammonium, phosphonium, or heterocyclic ammonium iodides,where X1, X2, X3, and X4 are independently direct bond, C6-C30 iodo-aryl group, C1-C30 iodo-alkyl group, C3-C30 iodo-cycloalkyl group, C1-C30 iodo-hydroxylalkyl group, C2-C30 iodo-alkoxy group, C3-C30 iodo-alkoxyl alkyl group, C1-C30 iodo-acetyl group, C2-C30 iodo-acetylalkyl group, C1-C30 iodo-carboxyl group, C2-C30 iodo-alky carboxyl group, and C4-C30 iodo-cycloalkyl carboxyl group; C3-C30 saturated or unsaturated iodo-hydrocarbon ring, or C3-C30 iodo-heterocyclic group; A1, A2, A3, A4 are independently acid labile group selected from C6-C15 iodo-aryl group, C4-C15 iodo-alkyl group, C4-C15 iodo-cycloalkyl group, C4-C15 iodo-hydroxylalkyl group, C4-C15 iodo-alkoxy group, and C4-C15 iodo-alkoxyl alkyl group.

The precursor of the present invention provides a direct pathway to metal carbides, which is expected to have applications in back-end (BEOL) barrier / liner layers, as current methods often do not provide carbon in pure carbide form. [Solution] This specification discloses a method and system for forming a metal-containing layer on a semiconductor substrate using a metal precursor containing a phosphonium ylide ligand. Also disclosed are a composition containing the metal precursor and a semiconductor device structure containing the metal-containing layer.

A composition containing polytetrafluoroethylene and substantially free from a compound represented by Formula (3):wherein M2 is H, a metal atom, NR54 (where R5s may be the same as or different from each other and are each H or an organic group having 1 to 10 carbon atoms), an imidazolium optionally having a substituent, a pyridinium optionally having a substituent, or a phosphonium optionally having a substituent, and q is 1 or 2. Also disclosed is a molded boy including the composition.

The application discloses an ethyne hydrochlorination reaction catalyst, which is prepared by stirring nitrogen-containing precursors, phosphorus-containing precursors, copper sources and organic solvents uniformly, drying, high-temperature calcination and acid washing; the nitrogen-containing precursors are one or more of 1-butyl-3-methyl imidazole bromide, 1-butyl-3-methyl imidazole chloride, 2-methyl imidazole and pyridine; the phosphorus-containing precursors are one or more of phosphoric acid, triphenyl phosphine, tetraphenyl phosphonium bromide and tetraphenyl phosphonium chloride; and the copper source is copper chloride or copper nitrate. The catalyst obtained by the application has the advantages of high stability and high activity.

This invention provides a method for the rearrangement nitrogen insertion reaction of indole phosphonium salts and tert-butyl (p-toluenesulfonyloxy) carbamate under potassium carbonate-promoted conditions, synthesizing a series of 3-aminoindole compounds. The technical solution of this invention has the following significant advantages: it eliminates the need for expensive metal catalysts, significantly reducing production costs; the reaction conditions are mild and simple, and the reaction can be carried out efficiently at room temperature with only the addition of a base and an amine source, achieving excellent chemoselectivity, regioselectivity, broad functional group compatibility, and excellent atom economy.

This invention relates to the field of organic synthesis technology, specifically to a photocatalytic method for preparing primary phosphonamide compounds. The invention provides the following synthesis scheme: a photocatalyst, a secondary phosphonium oxide compound, and ammonia are added to a reaction vessel. Under visible light irradiation, the primary phosphonamide compound is obtained after the reaction is complete. The photocatalyst includes any one of a metal photocatalyst and an organic photosensitizer. This invention uses readily available and inexpensive ammonia as the amine source and employs a green and efficient photocatalytic reaction technology, effectively reducing energy consumption and saving production costs. The reaction process does not require the addition of toxic halogenating reagents and generates no waste. This invention exhibits excellent substrate adaptability, high atom economy, mild reaction conditions, and high yield of the target product. The preparation process is simple, safe, environmentally friendly, easy to control, and overcomes the obvious defects of existing methods, meeting the requirements of modern green chemistry and clean production, and is suitable for large-scale industrial production.

This invention belongs to the field of nanofiber thin film technology, specifically disclosing a bis-quaternary phosphonium salt, 1,4-p-diphenylbis(triphenylphosphonium chloride), with chloride as the anion and the bis-quaternary phosphonium salt as the cation. The bis-quaternary phosphonium salt can be electrospun into a fiber thin film material. This bis-quaternary phosphonium salt thin film material exhibits good thermal stability, excellent adsorption effect on heavy metal Cr(VI) in acidic industrial wastewater, and is easy to recover, reducing secondary pollution. Furthermore, the preparation method of this invention is simple to operate, requires only simple equipment, is easy to operate, consumes little solvent, saves costs, and is conducive to industrial promotion.

The present invention relates to a pharmaceutical preparation based on the use of an active ingredient from the family of phosphonium salts derived from Michael acceptors. These four molecules have dermatophyte inhibitory activity of up to 99.9% inhibition of the fungal population intended for use in the treatment of nail fungus, dermatophytes. The CPS molecule inhibits Trichophyton ruhrum at a concentration of 0.031 mg / mL, and also Microsporum canis at a concentration of 0.062 mg / mL. The other compounds CP1, CP3, and CP4 inhibit Trichophyton ruhrum and Microsporum canis at a concentration of 0.25 mg / mL. Compound CP1 inhibits Candida albicans at a concentration of 0.25 mg / mL. Furthermore, these molecules have no lytic or toxic effect on dermatophytes, particularly Trichophyton rubrum, Microsporum canis, and Candida albicans. These synthetic molecules are used as a remedy and treatment for nail diseases caused by dermatophytes, specifically Trichophyton rubrum, Microsporum canis, and Candida albicans.

The application discloses a method for separating and recovering noble metals from waste platinum group metal catalysts, and belongs to the technical field of waste treatment and resource utilization. The method takes full advantage of the characteristics of microwave heat treatment, such as uniform heating, fast heating rate and high heating efficiency, can reach the required temperature in a short time, quickly synthesizes choline chloride / p-toluenesulfonic acid deep eutectic solvent (DES), and uses the deep eutectic solvent to leach the metals in the waste catalyst, and adopts DES hydrophilic phase-quaternary ammonium phosphonium ionic liquid hydrophobic phase liquid-liquid extraction to efficiently and quickly realize the enrichment of platinum and palladium, and through the stripping of palladium by thiourea and hydrochloric acid and the stripping of platinum by nitric acid, platinum and palladium products are selectively obtained. In the method, the high pressure (6000 kPa) and high temperature (250 DEG C) and necessary high temperature (800 DEG C) heat pretreatment steps in the traditional hydrometallurgy waste catalyst recovery process and the consumption of a large amount of acid are avoided.

The present application relates to sewage treatment technical field, specifically to a kind of composition for inhibiting hydrogen sulfide generation in drainage system and its application method.The present application for inhibiting hydrogen sulfide generation in drainage system composition is made of NO donor and tetramethylammonium phosphonium sulfate;And the mass ratio of NO donor and tetramethylammonium phosphonium sulfate is 1:2~2.5.The present application breaks through the retardation of EPS barrier to inhibitor diffusion by the synergistic mechanism of "NO induces biofilm dispersion-tetramethylammonium phosphonium sulfate precise inhibition of SRB metabolism", overcomes the defects of low SRB sensitivity and large amount of medicament caused by biofilm protection in traditional technology;In addition, since tetramethylammonium phosphonium sulfate has good biodegradability and environmental safety, it solves the problem of greater environmental impact of most current hydrogen sulfide generation inhibitors (such as glutaraldehyde, molybdate), realizes efficient, economic and green hydrogen sulfide source reduction.

This invention provides novel sulfate esters or salts thereof having two or more carbonyl groups, and surfactants. A compound, characterized by having the formula: R 1 -C(=O)-R 2 -C(=O)-R 3 -OSO3X represents this. (In the formula, R) 1 It is a straight-chain or branched alkyl group with 1 or more carbon atoms, or a cyclic alkyl group with 3 or more carbon atoms, wherein the hydrogen atoms bonded to the carbon atoms are not substituted or are substituted by hydroxyl groups or monovalent organic groups containing ester bonds. If it has 2 or more carbon atoms, it may contain a carbonyl group. If it has 3 or more carbon atoms, it may contain monovalent or divalent heterocycles, or it may be rolled into a ring. R 2 and R 3 Independently a single bond or a divalent linker. R 1 R 2 and R 3 The total number of carbon atoms is 6 or more. X is H, a metal atom, or NR. 4 4. Imidazolium with or without substituents, pyridinium with or without substituents, or phosphonium with or without substituents, R 4 It can be an H or an organic group, and can be the same or different. R 1 R 2 and R 3 (In this context, any two elements can bond together to form a ring.)

The utility model “METHOD FOR PRODUCING 4(PYRIDINE-2-YLOXY)-3-(P-TOLYL)-1,2,4THIADIAZOLE-5(4H)-ONE” relates to the field of fine organic synthesis and can be used to obtain 4-(pyridin-2-yloxy)3-(p-tolyl)-1,2,4-thiadiazol-5(4H)-one. The method of preparation is based on a two-stage synthesis involving the reaction of N'-hydroxy-4-methylbenzimidamide with pyridine-N-oxide in the presence of bromotris(pyrrolidino)phosphonium hexafluorophosphate (PyBroP) and an organic base in an acetonitrile medium at room temperature to form 4-methyl-N'-(pyridin-2-yloxy)benzimidamide, followed by cyclization by reaction with (chlorocarbonyl)sulfenyl chloride in the presence of sodium carbonate in a dichloromethane medium at room temperature, isolation of the target product by filtration, washing and drying.

This invention discloses a catalyst composition for the selective dimerization of ethylene, comprising an organotitanium compound, at least one organoaluminum compound, a non-polymeric ether modifier, a water-carrying agent, and water. The water-carrying agent includes one or more of sulfonates or sulfonates, phosphonium salts, alkyl quaternary ammonium salts, polyoxyethylene ethers, and alkylphenols. Using this catalyst composition for ethylene dimerization effectively inhibits polymer formation while maintaining high catalytic activity and butene-1 selectivity, exhibiting rapid initiation, a stable reaction process, and good reproducibility.

A method for producing a cyclic polysiloxane that includes a step for reacting a raw material cyclic siloxane and a dihalosilane in association with ring-opening of the cyclic siloxane in the presence of at least one catalyst selected from Lewis base compounds having a carbonamide bond represented by —C(═O)N<, phosphorus compounds having a P═O bond, quaternary ammonium salts, and quaternary phosphonium salts to obtain a linear polysiloxane with both ends of the molecular chain blocked by halogen atoms and a step for obtaining a cyclic polysiloxane by reacting the linear polysiloxane with both ends of the molecular chain blocked by halogen atoms with water makes it possible to provide a method for producing a cyclic polysiloxane that obtains a cyclic polysiloxane at high yield and high purity by simple steps and under moderate conditions.

This invention provides a polyurethane with poly(quaternary ammonium phosphonate copper) side chains, prepared by using bis(hydroxypropyl tertiary ammonium phosphonate copper) as a functional polyol, through addition polymerization with polyisocyanates and quaternization reaction with alkylating agents. The tertiary amine group in the bis(hydroxypropyl tertiary ammonium phosphonate copper) molecular structure is characterized by quaternization reactions with halogenated hydrocarbons, and also acts as a catalyst for the addition reaction of its hydroxypropyl group with polyisocyanates, as well as an N-ligand for complexing copper ions. Furthermore, the low solubility of copper phosphonate in water allows for the formation of a polyurethane composite material with macromolecular side chains that chelate copper ions, achieving a slow-release effect of copper ions in aqueous systems. Furthermore, the quaternary ammonium cations generated by the nucleophilic substitution reaction between the tertiary amine group in the poly(hydroxypropyl tertiary aminophosphonate copper) molecular structure and halogenated hydrocarbons have hydrophilic, water-absorbing, surfactant, antibacterial and bacteriostatic functions. Combined with the phosphonate ions generated by the dissociation of copper phosphonate in water, they pair to form two phosphonium zwitterionic structural units, which is of great significance for improving the antibacterial and bacteriostatic efficacy, biocompatibility, and hydrophilicity of polyurethane.