244 results about "Aromatic ketones" patented technology

A method for lateral chain modification of aryl main chain polymers with aromatic ketones or aldehydes containing tertiary basic N-groups is described. The modification can be accomplished via addition of an aromatic carboxylic acid or an acid derivative containing a tertiary amine moiety to a metallized polymer. The tertiary amines on the modified polymer can be converted to quaternary amines with halogen alkanes. Modification of the aryl main chain polymers with aromatic groups containing sulphonic acid radicals is also described. The polymers formed can be crosslinked and prepared for use in a wide variety of membrane technologies including ion exchange, dialysis, reverse osmosis, nanofiltration.

The invention discloses a multi-functional group type aromatic ketone compound (shown as in general formulas I-VI), a photoinitiator containing the same and a synthesizing method of the multi-functional group type aromatic ketone compound.

A radiation-sensitive composition containing 1 to 80% by weight of a solid component and 20 to 99% by weight of a solvent. The solid component contains a compound B which has (a) a structure derived from a polyphenol compound A by introducing an acid-dissociating group to at least one phenolic hydroxyl group of the polyphenol compound A which is synthesized by a condensation between a di- to tetrafunctional aromatic ketone or aromatic aldehyde each having 5 to 36 carbon atoms with a compound having 1 to 3 phenolic hydroxyl groups and 6 to 15 carbon atoms, and (b) a molecular weight of 400 to 2000. The composition containing the compound B is useful as an acid-amplified, non-polymeric resist material, because it is highly sensitive to radiation such as KrF excimer lasers, extreme ultraviolet rays, electron beams, and X-rays, and provides resist patterns with a high resolution, high heat resistance, and high etching resistance.

The present invention relates to an aqueous copolymer dispersion comprising an emulsion copolymer and two hydrophobic aromatic ketones, wherein the aromatic ketones are, based on the dry weight of the copolymer, from 0.1 to 3 wt % benzophenone and from 0.1 to 4 wt % a benzophenone derivative; wherein the dispersion comprises 0 or less than 0.1 wt % hydrophilic aromatic ketone. The copolymer dispersion is suitable for preparation of aqueous coating compositions which yields a relatively hard surface to provide not only short term but also long term dirt pick up resistance effects, after exposure to ultraviolet radiation.

A non-aqueous liquid electrolyte for a secondary battery, containing: at least one selected from a carbonate compound having a halogen atom and a sulfur-containing ring compound; an aromatic ketone compound; an organic solvent; and an electrolyte salt, in which, with respect to 100 parts by mass of the organic solvent, the aromatic ketone compound is 0.001 to 10 parts by mass and the at least one selected from a carbonate compound having a halogen atom and a sulfur-containing ring compound is 0.001 to 10 parts by mass, and more than 50% by mass of the whole amount of the organic solvent is composed of a solvent with a melting point of 10° C. or less.

The invention discloses a catalyst for loading silver on SiO2, a preparation method and application in a selective catalytic hydrogenation of chloro-aromatic compounds, nitryl-aromatic ene, nitryl-aromatic aldehydes, nitryl-aromatic ketone, and nitryl-aromatic polyamide. The synthetic method is that tetraethoxysilane and aminopropyl-triethoxysilane are added by weight proportion of 1: 0.1-1: 25 into an ammonia solution containing definite AgNO3, then the solution is stirred to form gelatinate under room temperature and dried under 100-200 DEG C for about 4-12 hours, thus obtaining the catalyst. The synthetic catalyst of the invention solves two problems of current catalytic hydrogenation of aromatic nitro-compounds: (1) a secondary reaction of dechlorination is generated during the hydrogenation of chloronitrobenzenes of aromatic nitro-compounds; (2) the selectivity of reaction is poor when alkene, aldehydes, ketone, nitrile and amide groups coexist.

The invention belongs to the technical field of asymmetric catalysis and specifically relates to a chiral nitrogen nitrogen phosphine tridentate ligand based on a ferrocene skeleton and an applicationthereof. A coordination compound is obtained by the disclosed chiral nitrogen nitrogen phosphine tridentate ligand base on the ferrocene skeleton complexed with a transition metal precursor, the complex is used as a precious metal catalyst, and is successfully applied to high efficiency asymmetric hydrogenation of aromatic ketone. Compared with other tridentate ligands, the ligand is simple to synthetize, is stable to water and air, and easy to prepare on a large scale, shows high activity and high enantioselectivity on carbon and oxygen double bond, and has greater implementation value and social and economic benefits.

The invention discloses a pressure-sensitive adhesive capable of being solidified by ultraviolet light and a preparation method as well as a method for preparing an adhesive tape by using the pressure-sensitive adhesive. The pressure-sensitive adhesive is prepared by the following steps of: adding an acrylate monomer mixture into a flexible polymer selected from natural rubber, butadiene styrene rubber and the like, stirring at normal temperature and then adding inorganic nano particles which are selected from nano silicon dioxide, nano titanium dioxide or nano calcium carbonate and have the grain diameter of 10 to 300 nanometers and a free radical type photoinitiator selected from an aromatic ketone or aromatic carbonyl compound; and stirring evenly so as to obtain the pressure-sensitive adhesive. The method for preparing the adhesive tape comprises the following steps of: coating the prepared pressure-sensitive adhesive capable of being solidified by the ultraviolet light on a substrate, covering a layer of discrete type polypropylene film or polyester film on the pressure-sensitive adhesive, putting under the ultraviolet light for irradiation and removing the covering film after solidifying so as to obtain the pressure-sensitive adhesive tape. The invention has the advantages that the pressure-sensitive adhesive does not contain a volatile organic solvent, the solidification process is safer and more stable, a high-performance pressure-sensitive adhesive product can be prepared by solidification under the irradiation of the ultraviolet light after the pressure-sensitive adhesive is coated at the substrate, the preparation process is simplified, and the invention has environmental protection and energy saving.

The invention provides an ultraviolet curing coating and a preparation method thereof. The ultraviolet curing coating is prepared from, by weight, 30-80 parts of UV resin, 3-15 parts of a photoinitiator and 5-30 parts of monomers, wherein the UV resin is selected from one or more of bisphenol A epoxy acrylic resin, polyester acrylic resin, polyurethane acrylic resin and organic silicon resin, the photoinitiator is selected from one or more of an aromatic ketone photoinitiator, an alpha-hydroxy ketone derivative, benzil, an acyl phosphorus oxide photoinitiator and an acyl phosphorus oxide derivative, and acrylic monomers and/or modified acrylic monomers are adopted as the monomers. Compared with the prior art, the ultraviolet curing coating has the advantages that the specific photoinitiator can be motivated to be decomposed into free radicals under LED irradiation, the free radicals interact with the UV resin and the monomers to be subjected to a cross-linking reaction to enable the ultraviolet curing coating to be cured, and meanwhile an obtained coating film is higher in flatness, capable of resisting scraping, better in flexibility and higher in hardness.

The invention discloses a method for preparing a supported nano-cobalt catalyst by pyrolysis of a deep eutectic solvent and an application. The method comprises the following steps: firstly, preparinga carbon black mixture supported with the deep eutectic solvent, then pyrolyzing the mixture at high temperature in an inert gas atmosphere to obtain the supported nano-cobalt catalyst, and applyingthe supported nano-cobalt catalyst to an aromatic alcohol liquid phase selective oxidation system with molecular oxygen as an oxygen source. Compared with the prior art, the supported nano-cobalt catalyst prepared with the method has the advantages that a nitrogen-doped carbon skeleton with high specific surface is effectively integrated with the catalytic active center of uniformly dispersed metal cobalt, oxygen can be activated as an oxidant in the absence of alkalinity and aids, aromatic alcohol is catalyzed and oxidized in a green and efficient way, aromatic aldehyde or aromatic ketone isobtained, and the problems about difficulty in recovery, discharge of three wastes and the like caused by extra need of homogeneous organic alkali in the catalytic oxidation process of traditional catalysts are solved. The catalyst prepared with the method has the advantages of high selectivity, high activity, high stability, magnetic recyclability and the like, and has good application value andprospect.

The invention relates to PNHO tridentate ligands and application of related ligands in asymmetric hydrogenation and similar reactions. The novel tridentate nitrogen-phosphine-oxygen ligands are first tridentate nitrogen-phosphine-oxygen ligands containing ferrocenyl planar chiral phosphine, and are successfully applied to high-efficiency high-selectivity asymmetric hydrogenation and other similar reactions of simple aromatic ketone, alpha-hydroxyketone and beta-ketone ester. Compared with other dominant tridentate ligands, the ligands provided by the invention have the advantages of simple synthesis route and low cost, can easily implement large-scale synthesis, are stable in air, and have high activity and high selectivity in asymmetric hydrogenation reactions of carbon-oxygen double bonds.

The invention discloses an industrial synthesis method of high-thermal-stability terminated polyaryletherketone resin. The industrial synthesis method of the high-thermal-stability terminated polyaryletherketone resin comprises the following steps: carrying out polymerization reaction by taking a 4,4'-difluorobenzophenone monomer, a 4,4'-dihydroxy benaophenonel monomer and a bisphenol monomer as reaction monomers, taking a high-boiling-point organic solvent as a solvent, taking alkali carbonate as a salt-forming agent and taking an asymmetric aromatic ketone derivative as a terminating agent to obtain a polymerized adhesive liquid; cooling the polymerized adhesive liquid, then crushing the polymerized adhesive liquid into powder, filtering the powder, subsequently boiling the liquid by using an organic solvent and deionized water, washing to remove the solvent and side product salt, drying the liquid to obtain polyaryletherketone resin. According to the industrial synthesis method, alkali metal sodium carbonate is independently taken as a catalyst; an excellent terminating effect is exerted after the terminating agent is added; the system is not depolymerized; the terminated polyaryletherketone resin synthesized by the method has high-temperature thermal stability.

The invention discloses a method for synthesizing an alpha-brominated aromatic ketones compound. The method comprises the following steps: taking an aromatic ketones compound as a substrate, hydrogen bromide as a brominating agent, copper nitrate as a catalyst, oxygen or air as an oxidizing agent and water as a solvent; performing brominating reaction at 25-100 DEG C; and after finishing the reaction, post-processing the reaction solution, thereby obtaining the alpha-brominated aromatic ketones compound. According to the method, water is taken as the solvent, so that the pollution and harm to the environment during a producing, recycling or discharging process caused by an organic solvent are avoided; the method is an environment-friendly green synthesizing technology; the hydrogen bromide is taken as the brominating agent, so that the operation is conveniently and easily controlled, the final reaction products are only alpha-bromoketone and water, no other harmful matter is generated and the defects of the prior art are eliminated; the oxygen or air is taken as the oxidizing agent, so that the price is low and the oxidizing agent is easily obtained; and the method provided by the invention is characterized by convenience in operation, safety, environmental protection, low cost, high economic benefit, and the like, and belongs to a green chemical technology.

The invention discloses an industrial synthesis method of high-thermal-stability blocked binphenyl-structure-containing polyaryletherketone resin. The industrial synthesis method of the high-thermal-stability blocked binphenyl-structure-containing polyaryletherketone resin comprises the following steps: carrying out polymerization reaction based on paradioxybenzene, biphenol and 4,4'-difluoro diphenyl ketone or 4,4'-difluoro triphenyl diketone as reaction monomers, a high boiling point organic solvent as a solvent, alkali carbonate as a salt-forming agent and asymmetric aromatic ketone-based derivative as a blocking agent, so as to obtain polymerization mucosal fluid; cooling the polymerization mucosal fluid and smashing the cooled polymerization mucosal fluid into powder, filtering and boiling and washing with an organic solvent and deionized water for removing the solvent and byproduct salt, and drying, thus obtaining the binphenyl-structure-containing polyaryletherketone resin. The industrial synthesis method of the high-thermal-stability blocked binphenyl-structure-containing polyaryletherketone resin has the advantages that sodium carbonate alkali metal is individually adopted as a catalyst, and a good blocking effect is realized after the blocking agent is added; besides, no polymerization phenomenon is caused in a system, and the obtained blocked binphenyl-structure-containing polyaryletherketone resin has high temperature thermal stability.

A tin or tin alloy electroplating bath and a process for producing a bump using the same are disclosed. The electroplating bath includes an inorganic acid and an organic acid, as well as a water-soluble salt thereof; a non-ionic surfactant selected from the group consisting of polyoxyalkylene phenyl ethers, polyoxyalkylene polycyclic phenyl ethers, and salts thereof; and leveling agents containing at least one selected from the group consisting of aliphatic aldehydes, aromatic aldehydes, aliphatic ketones, and aromatic ketones; and at least one selected from the group consisting of α,β-unsaturated carboxylic acids, α,β-unsaturated carboxylic acid amides, and salts thereof. The process includes forming a coating film of a tin or tin alloy on a substrate with an electroplating bath as set forth above; and then performing reflow treatment.

The invention discloses a compound with antitumor activity and a preparation method and application of the compound and belongs to the technical fields of new compound synthesis and medicine application. According to the compound, the preparation and the application thereof disclosed by the invention, aromatic aldehyde and aromatic ketone are catalyzed by sodium hydroxide to synthesize 3,4,5-triethoxy-3',4'-dimethoxy chalcone for the first time, and the test of in vitro tumor cell inhibitory activity on the 3,4,5-triethoxy-3',4'-dimethoxy chalcone is realized; the result shows that the compound has higher inhibitory activity for human lung cancer cell A549, human colon carcinoma cell SW620 and human liver cancer cell HepG2. In addition, the antitumor activity of the 3,4,5-triethoxy-3',4'-dimethoxy chalcone for the human colon carcinoma cell SW620 and the human liver cancer cell HepG2 is superior to that of a reference drug 5-fluorouracil. The invention provides a new effective treatment means for tumor treatment and has a broad application prospect.

The invention discloses a kind of compounds with a general formula of I-VIII. The compounds can be singly used as an alkene unsaturated system photopolymerization initiator and also can be combined with another photoinitiator and/or other additives.

The invention relates to the technical field of optical radiation free radical polymerization novel materials, in particular to a novel compound of oxime ester and an aromatic ketone photo polymerization initiator, wherein the structural formula of the novel compound is shown as (I). The compound has excellent and practical dissolution performance and high light sensitivity, can be used as a photo initiator independently in the filed of the optical radiation free radical polymerization novel materials in an olefin-containing unsaturated compound system, and can also be used as one of the photo initiators in the photo polymerization of an olefinic unsaturated compound mixture or an olefin-containing unsaturated compound mixture.

The present invention is a preparation process of solution magnesium source. The said preparation process includes: adding solid magnesiumocene and dimethyl magnesiumocene to an organic solvent of 110 deg.C boiling point and stirring for homogeneity; dropping over C9 alkane, over C9 tertiary amine or aromatic aldehyde or aromatic ketone, over C5 primary amine or aliphatic aldehyde or Schiff base formed by ketone and primary amine; further heating while stirring; and decompression distilling to eliminate solvent to obtain solution magnesium source. The said solvent has excellent solid magnesiumocene and dimethyl magnesiumocene liquefying capacity and one portion of the solvent can liquefy three or more portions of magnesiumocene and dimethyl magnesiumocene completely.

The invention discloses a method for preparing a phosphorus-containing polyamine self-emulsifying epoxy resin curing agent. The method comprises the following steps: firstly adding polyamine, aromatic aldehyde or aromatic ketone and DOPO to a four-necked flask, taking absolute ethyl alcohol as a solvent, taking triethylamine as a catalyst, stirring, heating up and performing a reflux reaction, cooling to room temperature, pouring a reaction liquid to deionized water, precipitating out, carrying out suction filtration, washing with water, re-crystallizing a crude product, and drying to obtain a phosphorus-containing polyamine epoxy resin curing agent; then preparing a non-ionic waterborne epoxy self-emulsifying agent; and finally, preparing the phosphorus-containing polyamine self-emulsifying epoxy resin curing agent with DOPO as a side group by using the phosphorus-containing polyamine epoxy resin curing agent and the non-ionic waterborne epoxy self-emulsifying agent. The phosphorus-containing polyamine self-emulsifying epoxy resin curing agent with DOPO as the side group, prepared by the method provided by the invention, has flame retardant, heat resistant and self-emulsifying functions to meet the preparation needs of a fire-retardant and heat-resistant waterborne epoxy paint base material.