20 results about "Phenyl Ethers" patented technology

The application relates to the technical field of anticorrosive paint and discloses long-acting aging-resistant acrylic anticorrosive paint and a production process thereof, wherein the long-acting aging-resistant acrylic anticorrosive paint comprises the following components by weight: 40-50 parts of acrylic emulsion, 4-8 parts of polyester resin, 4-8 parts of amino resin, 3-4 parts of film-forming aid, 20-25 parts of modified talcum powder, 10-12 parts of solvent and 4-5 parts of auxiliary agent; the modified talcum powder is obtained by modifying talcum powder with a modifier, wherein the modifier comprises 2-[(2-methoxy-4-nitrophenyl)amino]ethanol and / or hydroxybutyryl amide phenyl ether. The above technical scheme solves the problem of poor anticorrosive performance of the acrylic anticorrosive paint in the prior art.

This invention relates to the field of building materials technology, and particularly to a viscosity-reducing polycarboxylate superplasticizer and its preparation method. The viscosity-reducing polycarboxylate superplasticizer uses polyethylene glycol dicyclopentenyl ether methacrylate as the macromonomer, combined with 2-methacryloyloxyethyl phosphocholine, 4-vinylphenylboronic acid, and polyethylene glycol phenyl ether methacrylate as small monomers, prepared via free radical polymerization. Finally, it undergoes freeze-drying and grinding to obtain the target powder product. When the prepared superplasticizer is added to concrete mixtures, it swells and unfolds into a comb-shaped polymer under mechanical stirring and alkaline conditions. Through PEG long side-chain lubrication and steric hindrance, the regulation of surface tension / interfacial energy by phosphocholine groups, and the selective adsorption of borate groups, the initial viscosity is significantly reduced, the viscosity increase over time is controlled, and segregation and bleeding are effectively suppressed, making it suitable for various cementitious systems.

The present application relates to the technical field of chromatographic packing, in particular to a kind of phosphine ligand modified silica gel chromatographic packing and preparation method thereof, the present application first designs and synthesizes the porous silsesquioxane microspheres containing diphenyl phosphine ligand as functional unit, and the modified bridged silane containing phenyl ether structure as alkali-resistant reinforcing unit, then by sol-gel method, the above unit is copolymerized with tetraethyl orthosilicate, constructs organic-inorganic hybrid silica gel skeleton, finally, the pore structure of packing is optimized by two-step hole expansion process;The method makes phosphine ligand firmly embedded in the interior of silica gel skeleton in the form of covalent bond, and the modified bridged silane containing phenyl ether structure provides hydrophobic protection and space stabilization effect as part of the skeleton, so as to realize the long-term stability of packing in strong alkaline environment and high capacity, high selectivity adsorption of metal ions.

This invention proposes a polyimide film, its preparation method, and its applications, relating to the field of thin film materials. By weight, it comprises the following raw materials: 50-100 parts dimethylformamide, 5-10 parts diaminodiphenyl ether, 10-20 parts phenylenediamine, 1-2 parts core-shell structured silica-alumina particles, 25-30 parts pyromellitic dianhydride, 1-2 parts organically modified montmorillonite, 1-2 parts aminated thermally conductive particles, 50-100 parts acetic anhydride, and 5-10 parts pyridine; wherein the core-shell structured silica-alumina particles are a composite material with polydopamine as the shell and nano-silica and nano-alumina as the core; the organically modified montmorillonite is obtained by intercalation modification of montmorillonite with an organic compound containing hydroxyl groups; the aminated thermally conductive particles are obtained by graft modification of nitrides with an organic compound containing amino groups. It exhibits good high-temperature resistance, high-pressure breakdown resistance, and thermal conductivity, as well as high mechanical strength and long service life.

The application provides a sodium metal battery and an electric device, the sodium metal battery comprising a positive electrode sheet and an electrolyte, the electrolyte comprising: a non-aqueous solvent, the non-aqueous solvent comprising a phenyl ether solvent. Thus, the sodium metal battery provided by the application has good cycle performance.

This invention discloses a method for preparing a thermally stable multilayer battery separator, relating to the field of battery materials technology. The battery separator of this invention comprises a modified polyethylene film and a coating applied to at least one surface of the modified polyethylene film. The modified polyethylene film is obtained by mixing polyethylene, poly-2,6-dimethyl-1,4-phenyl ether, and maleic anhydride-grafted polyethylene in a mass ratio of 5-7:2-3:1-2, extruding the mixture into a film, and then subjecting it to corona treatment. The coating is obtained by mixing modified nano-titanium dioxide containing ester groups, a solution of 3-(3-(aminomethyl)phenyl)-2,2-difluoropropionitrile, and ethanol in a mass ratio of 1-3:5-8:1-3, adding a small amount of catalyst to obtain a coating solution, and then coating and drying the mixture, significantly improving the thermal stability of the battery separator.

This invention relates to the fields of pesticide chemistry and medicinal chemistry, and in particular to a coumarin derivative containing a substituted phenyl ether structure, its preparation method, and its applications. This invention organically combines a coumarin structure with a substituted phenyl ether fragment to synthesize a novel class of coumarin derivatives containing a substituted phenyl ether structure. These compounds exhibit excellent antifungal activity and broad-spectrum activity, demonstrating superior inhibitory activity against *Agropyron cristatum*, *Sclerotinia sclerotiorum*, *Botrytis cinerea*, and *Tricholoma matsutake*. This invention provides a foundation for the development of novel fungicides using coumarin derivatives containing substituted phenyl ether structures as active ingredients.

This invention belongs to the field of organic and polymer synthesis technology, specifically relating to a method for synthesizing polynaphthalene-phenanthrene ether polymers. In the field of polymer synthesis methodology, condensation polymerization is a common polymerization method. This method typically uses functional groups to participate in the polymerization reaction. The introduction of functional groups not only increases the cost of monomer synthesis but also leads to storage difficulties due to their reactivity issues, requiring the addition of end-capping reagents at reaction termination. Therefore, developing C-H bond condensation polymerization methods is of great significance. This invention proposes an oxidative polymerization method for naphthalene-phenanthrene ether monomers. This method uses polycyclic aromatic hydrocarbons naphthalene and phenanthrene as C-H bond donors, and selective oxidative coupling polymerization of the naphthalene-phenanthrene backbone structure can be achieved by controlling the oxidant and solvent conditions to obtain polynaphthalene-phenanthrene ether (see abstract figure). The polymer obtained by this method exhibits good thermal stability and a high glass transition temperature, as tested by DSC and TGA, possessing the performance characteristics of high-performance engineering plastics.

The present application relates to the technical field of thickening agent, in particular to a kind of salt-resistant and temperature-resistant water thickening agent for fracturing fluid and preparation method thereof, for solving the problem of insufficient salt resistance and temperature resistance of existing thickening agent, the salt-resistant and temperature-resistant water thickening agent for fracturing fluid is obtained by sulfonic acid base-phenyl ether fluorenyl hyperbranched polyacrylamide, synthesis tetrahydroxy phenyl ether fluorene, with dihydroxyethyl amino propionic acid ethyl ester to obtain intermediate product 1 containing phenyl ether fluorenyl, intermediate product 1 and maleic anhydride synthesis intermediate product 2, intermediate product 2 and acrylic acid, acrylamide, 2-acrylamido-2-methylpropane sulfonic acid polymerization obtain sulfonic acid base-phenyl ether fluorenyl hyperbranched polyacrylamide, phenyl ether has good thermal stability, cooperates with fluorenyl to improve the temperature resistance of polymer, sulfonic acid group can effectively shield sodium ion, calcium ion and other cations Compression effect on polymer chain, improve the salt resistance of polymer, enhance the stability and strength of thickening agent.

The present application relates to the technical field of functional resin, aiming at the problem that the existing polyorganosiloxane and PC resin are prone to phase separation, and the mechanical properties of the toughened modified PC resin material are obviously reduced, the present application discloses a kind of phenylpropene resin coated organic silicon elastomer SA@SE and its preparation method and application, the SA@SE has shell-core structure, the shell of the SA@SE is linear structure or slightly crosslinked phenylpropene resin, the core of the SA@SE is the polyorganosiloxane elastomer formed by hydrogen-containing polysiloxane, ethylene polysiloxane and third functional component through silicon hydrogenation addition reaction, and the third functional component is selected from styrene, allyl phenyl ether, allyl benzyl ether, cyclohexyl vinyl ether and the like.The SA@SE of the present application is a copolymer grafted and bonded between the inner and outer core-shell through covalent bond, which can realize the mutual solubility with bisphenol A type PC resin and the like, avoid phase separation and delamination, and improve the toughening and impact resistance of the modified PC resin.

The application provides a method for dissolving and recycling PET, comprising the following steps: 1) mixing the PET to be recycled with a mixed solvent system composed of a good solvent and a di-arylether under the protection of an inert atmosphere, stirring and dissolving under a first temperature condition to obtain a first material; the good solvent is propylene carbonate and / or ethylene carbonate; the di-arylether is at least one of diphenyl ether, butyl phenyl ether and dibenzyl ether; the first temperature is 160-200 DEG C; 2) cooling the first material to a second temperature, adding anti-solvent water to precipitate and separate out the PET; 3) separating, washing and drying the material obtained in the step 2) to obtain the recycled PET. The method for dissolving and recycling PET has the whole process in line with the green development route, effectively avoids the problem of degradation of the PET under high temperature dissolving, and the performance of the recycled PET is comparable to that of the raw material. Meanwhile, the PET yield can be as high as 97%, and the method has important large-scale industrial application value.

The application relates to the technical field of functional resin, and particularly discloses an acrylic resin coated silicone elastomer PA@SE prepared through aqueous phase suspension emulsion polymerization as well as a preparation method and application thereof. The PA@SE has a core-shell structure, the shell layer is linear acrylic resin or slightly crosslinked acrylic resin, the inner core of the PA@SE is polyorganosiloxane elastomer ViSE formed through a silicon-hydrogenation addition reaction of hydrogen-containing polysiloxane, ethylene polysiloxane and a third functional component, and the third functional component includes vinyl acetate, allyl acetate, allyl phenyl ether, allyl benzyl ether, cyclohexyl vinyl ether, alpha-C 8‑18 Olefins, 1,6-hexadiene, 1,9-decadiene, (poly)ethylene glycol diallyl ether, (poly)propylene glycol diallyl ether, or a mixture of one or more thereof. The acrylic resin coated silicone elastomer PA@SE provided by the application can not only be mutually soluble with PC resin and the like, but also can realize toughening and reinforcing effects in PC resin and the like.

The application discloses a phenyl ether-based bimetallic organic framework antifouling material and a preparation method thereof, and relates to the technical field of functional antifouling MOF materials. The phenyl ether-based bimetallic organic framework antifouling material has a three-dimensional porous network structure and is self-assembled by a phenyl ether-based organic ligand and two different metal ions through coordination bonds. 2+ The two different metal ions are selected from any two of copper ions Cu 2+ , zinc ions Zn 2+ , cobalt ions Co 2+ , and nickel ions Ni . By introducing a phenyl ether-based benzotriazole organic ligand into the MOF structure, the hydrophobicity of the material surface is improved as a whole, and the initial attachment tendency of marine organisms on the material surface is effectively weakened.

This invention discloses a method for preparing asymmetric tertiary silanes by hydrosilylation of alkynes and olefins. The method comprises: a cobalt A complex catalyzing a primary hydrosilylation reaction between an alkyne and a hydrosilane to generate a secondary silane intermediate; then, a cobalt B complex and an olefin are added to catalyze a secondary hydrosilylation reaction between the secondary silane intermediate and the olefin to generate the asymmetric tertiary silane; wherein the cobalt A complex is an N-pyridineimide bidentate cobalt metal complex; and the cobalt B complex is a bis((2-diphenylphosphine)phenyl)ether type cobalt metal complex. This method for preparing asymmetric tertiary silanes by hydrosilylation of alkynes and olefins utilizes two cobalt catalysts, using alkynes, olefins, and phenylsilanes as substrates, and employs two sets of continuous hydrosilylation reactions in a one-pot, two-step process to efficiently and selectively synthesize asymmetric tertiary silanes through a series of reactions.

This invention relates to the field of surface treatment technology, and particularly to a metal surface treatment agent and its preparation method, as well as a method for surface treatment of metals. The metal surface treatment agent provided by this invention is prepared by mixing EDTA-2Na, citric acid, malic acid, phytic acid, sodium dodecyl sulfonate, polyethylene glycol octylphenyl ether, cocoyl diethanolamide, defoamer, and water in a certain proportion. It exhibits excellent detergency and emulsification properties, effectively removing animal fats and industrial oils from workpieces, and effectively removing rust. Simultaneously, it generates a dense passivation film on the workpiece surface, effectively increasing rust prevention and coating adhesion. Furthermore, the main raw materials used in this invention are everyday chemical products, which are mild on the natural environment and harmless to the human body. Moreover, the treatment agent of this invention requires no special equipment, only a treatment tank or no treatment tank at all, the operation process is simple, there is no emission pollution, and it can effectively reduce energy consumption and save costs.

The application discloses an efficient flotation method for oxidized coal slime and belongs to the technical field of coal washing and processing. A composite collecting agent is prepared from polyethylene glycol octylphenyl ether and diesel oil, and fatty acid methyl ester is added as a synergistic agent; the mass fraction of the polyethylene glycol octylphenyl ether in the composite collecting agent is 6-10 parts, the mass fraction of the diesel oil is 0-4 parts, the adding amount of the composite collecting agent in the coal sample is 200-1200 g / t, and the adding amount of the fatty acid methyl ester is 20-100 g / t. Through the synergistic effect between the composite collecting agent and the synergistic agent, the hydrophobicity of the surface of the oxidized coal is significantly enhanced, the adsorption amount and the uniformity of the collecting agent on the surface of the coal particles are improved, the problem of low flotation efficiency caused by the high hydrophilicity of the surface due to the high content of oxygen-containing functional groups is effectively overcome, the reagent system constructed by the application has the characteristics of simple formula, wide source, non-irritating odor, environmental friendliness and easy implementation, the clean coal yield can be further improved, the ash content can be effectively controlled, and the application has significant industrial application value.

This invention provides a chlorine storage medium, a method for storing chlorine gas in the storage medium, and a method for separating chlorine gas. The storage medium is composed of at least one organic salt and at least one organic solvent, wherein the organic salt is selected from one or more of tetraalkylphosphonium and tetraalkylamine, and the organic solvent is selected from one or more of bromobenzene, propylene glycol phenyl ether, 4-chlorodiphenyl ether, 3,4-dichlorodiphenyl ether, pyridine, 2-chloropyridine, and 2,4-dichloropyridine. The storage medium of this invention is a low-viscosity liquid under working conditions, resulting in a high chlorine storage rate and a high chlorine storage density per unit mass, while also facilitating transportation. The storage medium of this invention effectively reduces the saturated vapor pressure of chlorine gas at room temperature, effectively reducing the risk to environmental safety. This storage medium enables the controlled release of chlorine gas.

An alkyl-substituted diphenyl ether mixture which is a mixture of diphenyl ethers substituted with 2 to 10 straight-chain or branched-chain alkyl groups having a carbon number of 8 to 24, wherein the mixture substantially does not contain a diphenyl ether substituted only with a branched-chain alkyl group.