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627 results about "Acryloyl chloride" patented technology

Acryloyl chloride, also known as 2-propenoyl chloride or acrylic acid chloride, is the organic compound with the formula CH₂=CHCO(Cl). It is a colorless liquid, although aged samples appear yellow. Although it belongs to the acid chlorides group of compounds, its synthesis and reactivity are somewhat different.

Photo-curing monomer with ortho-phenolic hydroxyl structure, preparation method and bond thereof

InactiveCN101844993APhotopolymerization is fastPhotopolymerization environmental protectionOrganic compound preparationCarboxylic acid amides preparationDouble bondSolvent
The invention discloses a photo-curing monomer with ortho-phenolic hydroxyl strucutre, a preparation method and bond thereof. In the formula I monomer, the compound which has crylic acid at two ends or crylic acid double bond at one end and methylacrylic acid double bond at the other end is added to the amidogen of dopamine and derivant thereof through a Michael addition method to form corresponding secondary amine or tertiary amine. In the formula II monomer, the double bond is introduced by (methyl) acrylic anhydride, (methyl) crylic acid and (methyl) acryloyl chloride. The photopolymerization bond comprises the following components by weight percent: 20 to 99.9 percent of the compound with the ortho-phenolic hydroxyl structure, 0 to 70 percent of activated thinner and/or solvent, 0.1 to 10 percent of evocating agent and 0 to 60 percent of natural macromolecule or modified outcome thereof. The bond can be bonded in dry state and wet state, is a quick and long lasting bond, realizes the organic bond of biological bond and photopolymerization, has the advantages of low manufacture cost, simple and convenient operation and high productivity and has extensive application foreground in the biological bond field.
Owner:BEIJING UNIV OF CHEM TECH

Polymerizable macromolecule photoinitiator and preparation method thereof

InactiveCN102746480AAvoid reaction stepSimple operating conditionsFiltrationReaction temperature
The present invention relates to a polymerizable macromolecule photoinitiator and a preparation method thereof. The preparation method comprises: adding 4-hydroxybenzophenone and a formaldehyde solution to a three-necked flask filled with an alkali adopted as a catalyst, carrying out heating stirring to a temperature of 95 DEG C, and carrying out a reaction for 2 hours; heating to a temperature of 150 DEG C, carrying out a reaction, and carrying out a reduced pressure suction filtration reaction for 20 minutes; cooling to a temperature of 105 DEG C after completing the reaction, and collecting the product; pouring the product into water to carry out precipitation, and carrying out suction filtration to obtain a benzophenone-containing macromolecule photoinitiator; dissolving the benzophenone-containing macromolecule photoinitiator in an organic solvent, and simultaneously adding the benzophenone-containing macromolecule photoinitiator and a tertiary amine to the three-necked flask to carry out stirring; dissolving acryloyl chloride in an organic solvent, and slowly adding the organic solvent containing the acryloyl chloride to the mixing solution in a dropwise manner, wherein thereaction temperature is 0-5 DEG C; after completing the addition, stirring for 3 hours at a room temperature, and standing overnight; carrying out suction filtration, washing and drying on the resulting solution; and carrying out rotary evaporation to remove the solvent to obtain the polymerizable macromolecule photoinitiator. The photoinitiator prepared by the preparation method of the present invention has characteristics of large molecular weight, relatively small mobility, self-polymerization, and the like.
Owner:HANGZHOU INST OF ADVANCED MATERIAL BEIJING UNIV OF CHEM TECH

Hyperbranched hydrophobical-associating water-soluble polymer and its preparation method

The invention discloses a hyperbranched hydrophobical-associating water-soluble polymer and its preparation method. The polymer is obtained through copolymerizing acrylamide, acrylic acid, a hydrophobic monomer and functional hyperbranched macromolecules. The preparation method of the polymer comprises the following steps: 1, respectively dissolving a hyperbranched polyamide-amine macro-molecular skeleton treating diethylenetriamine as a core and maleic anhydride (or acryloyl chloride or acrylic anhydride) in dimethyl sulphoxide, slowly adding the skeleton monomer solution to the maleic anhydride solution in a dropwise manner, letting in nitrogen, placing the obtained system in an icy salt bath, stopping the dropwise addition of the skeleton monomer solution when the pH value of a reaction solution reaches 4-5, and precipitating with chloroform to obtain a functionalized skeleton monomer; and 2, carrying out free radical aqueous solution polymerization of sodium acrylate, acrylamide, the hydrophobic monomer dimethylallyl-N-alkylammonium chloride and the functional skeleton monomer. The preparation method has a reliable principle and is simple to operate, and the synthesized polymer still has a good thickening capability and a good seepage performance under a high mineralization degree and a strong shearing action.
Owner:SOUTHWEST PETROLEUM UNIV

Method for preparing fluorine-containing acrylate

The invention belongs to the technical field of textile fabric finishing agents, and relates to a method for preparing an intermediate fluorine-containing acrylate monomer of a water-proof and oil-proof organic fluorine fabric finishing agent. The method is characterized by comprising the following steps of: (1) in the presence of a reducing agent, preparing polyfluoroalcohol by using a perfluoroalkylacyl compound as a raw material; and (2) slowly dripping (methyl) acryloyl chloride to prepare fluorine-containing acrylate in the presence of a catalyst by using the polyfluoroalcohol prepared in the step (1) and using phenothiazine as a polymerization inhibitor. The number of long-chain perfluoroalkyl carbon atoms in the prepared fluorine-containing acrylate is less than 8, and the fluorine-containing acrylate can be degraded and has no biological accumulation. The fluorine-containing acrylate has no hidden dangers of long-chain perfluoroalkyl to destroy the environment and harm human health. Fluorine-containing acrylate copolymer emulsion prepared by using the prepared fluorine-containing acrylate monomer is used as a water-proof and oil-proof finishing agent for textiles, and the finished textiles have excellent water-proof and oil-proof performance.
Owner:江苏梅兰化工有限公司

Side-chain liquid crystal polymer with aggregation-induced emission property and preparation method thereof

The invention discloses a side-chain liquid crystal polymer with aggregation-induced emission property and a preparation method thereof. A substituted cyano-distyrene compound is generated by using a substituent-containing para benzaldehyde derivative and hydroxybenzyl cyanide through Knoevenagel reaction, so that, on one hand, the substituted cyano-distyrene compound can react with polymerizable double bond-containing acids such as saturated dihalide, methacrylic acid or acrylic acid in sequence to generate a polymerizable monomer and a side-chain liquid crystal polymer with a flexible spacer is obtained through free radical polymerization; and on the other hand, the substituted cyano-distyrene compound can directly react with polymerizable double bond-containing acyl chloride such as methacryloyl chloride or acryloyl chloride to generate the polymerizable monomer and a side-chain liquid crystal polymer free of the flexible spacer is obtained through free radical polymerization. A fluorescent chromogenic group and a liquid crystal unit are combined into one; the method is simple in synthesis and easy to purify, and the obtained polymer has an obvious aggregation-induced emission effect, has excellent liquid crystal property and has a good application prospect.
Owner:XIANGTAN UNIV

Electrophoresis particle of polymer dye (pigment) for electronic ink and preparation method thereof

The invention relates to an electrophoresis particle of polymer dye (pigment) for electronic ink and a preparation method thereof, and belongs to technology of electrophoresis particle preparation. The electrophoresis particle uses dye as an initial raw material, and is prepared according to the following proportion that: the mass ratio of the dye to acryloyl chloride is 1:1-10; the mass ratio of the dye to styrene is 1:1-20; the mass ratio of the dye to divinylbenzene is 1:0.5-10; and the mass ratio of the dye to an initiator AIBN is 1:0.01-0.05. The preparation method comprises the following steps: carrying out functionalized modification on dye acidylation by acryloyl chloride in methylene dichloride to lead the dye to carry a polymerizable functional group; then, leading the dye to perform a polymerization reaction with styrene in ethanol for 4 to 12 hours by taking AIBN as the initiator and the divinylbenzene as a cross-linking agent to prepare the particle with particle diameter of between 200 and 300nm. The electrophoresis particle and the preparation method have the advantages of simple process, accessible raw materials, even particle diameter of the prepared colorful electrophoresis particle and good degree of sphericity. The electrophoresis particle of the organic polymer dye (pigment) not only maintains the advantages of bright color and proper density of the organic dye, but also overcomes the defects uneven shape of the organic dye particle, poor movement effect in disperse liquid under the action of an electric field.
Owner:TIANJIN UNIV

Acrylate polymer integrating water and oil repellence with flame retardancy, and preparation and application thereof

The invention relates to an acrylate polymer integrating water and oil repellence with flame retardancy, which has the structural formula shown as the figure, and preparation and application thereof. The preparation of the acrylate polymer comprises the steps: at first, chlorine alkyl phosphate and alkyl alcohol amine are subject to ammonolysis reaction under certain conditions, the resultant alcohol is further subject to esterification reaction with acryloyl chloride at low temperature to prepare acrylate derivative consisting of phosphorus and nitrogen units, and finally the acrylate derivative, fluorine-containing acrylate, crosslinking monomer and long-chain acrylate monomer are subject to polymerization through emulsion. The acrylate polymer according to the invention can be diluted with water at any ratio, has no bioaccumulation toxicity, no or low VOC discharging and no formaldehyde and other harmful substances, and is an environmentally friendly, green, pollution-free water / oil-resisting antifouling flame-retardant finishing agent with high performance; in addition, the acrylate polymer not only can be used for the flame-retardant finishing of fabrics, but also has excellent water and oil repellence and eco-friendliness.
Owner:DONGHUA UNIV

Acrylic acid or methylpropenoic acid rosin derivative ester synthesis method

The invention discloses a method for synthesizing acrylic acid or methacrylic acid vinsol ester, comprising the following steps: one of vinsols containing hydroxide radical functional groups, acid-binding agent and addition type polymerization inhibitor are dissolved in non-proton transfer solvent, methacrylic chloride or acryloyl chloride is added into the mixed solution, the reaction temperature is 0-85 DEG C, and the reaction time is 0.5-10h; then, the precipitate is filtered, and vacuum extraction is carried out on the obtained filter liquor to remove solvent, so that acrylic acid or methacrylic acid vinsol ester can be obtained; the mass of the non-proton transfer solvent is 100-500% of that of the vinsol; the molal weight of the methacrylic chloride or the acryloyl chloride is 100-500% of that of hydroxide radical of the vinsol containing hydroxide radical functional groups; the dosage of the acid-binding agent is 100-500% of the molal weight of the hydroxide radical of the vinsol containing hydroxide radical functional groups. The synthesized acrylic acid or methacrylic acid vinsol ester can be used for having free radical polymerization reaction, can be applied to the fields such as paint, adhesive, printing ink, paper making, etc. The method has high technical efficiency and good stability of the product.
Owner:INST OF CHEM IND OF FOREST PROD CHINESE ACAD OF FORESTRY

Anti-shearing polymer and preparation method thereof

The invention relates to an anti-shearing polymer and a preparation method thereof. The polymer is a copolymer composed of acrylic amide, sodium acrylate, hydrophobic monomer dimethyl allyl-N-alkyl ammonium chloride and a functionalized framework monomer. The average molecular weight of the copolymer is 6 million. The preparation method comprises the following steps of: (1) respectively dissolving a polyamide-amide macromolecular framework monomer and maleic anhydride (or acryloyl chloride and acrylic anhydride) into dimethyl sulfoxide; slowly dropwise adding a framework monomer solution intoa maleic anhydride solution; introducing nitrogen and placing the system into an ice salt bath; when the pH (Potential of Hydrogen) value of a reaction solution is 4-5, stopping dropwise adding the framework monomer solution; and utilizing chloroform to repeatedly precipitate to obtain the functionalized framework monomer; and (2) carrying out free radical water solution polymerization on the acrylic amide, acrylic acid, the hydrophobic monomer and the functionalized framework monomer. The anti-shearing polymer and the preparation method thereof have the advantages of reliable principle and convenience for operation; and the synthesized polymer still has good tackifying capability under high-temperature, high-salinity and strong shearing effects.
Owner:SOUTHWEST PETROLEUM UNIV

Loaded alpha-palladium diimine and method for preparing hyperbranched polyethylene by catalyzing with same

The invention discloses loaded alpha-palladium diimine and a method for preparing hyperbranched polyethylene by catalyzing with same. The loaded alpha-palladium diimine is obtained by loading a loaded alpha-palladium diimine complex on an acryloyl chloride-modified magnesium chloride carrier and performing cationization, wherein the magnesium chloride carrier is a magnesium chloride/ethanol compound; and the alpha-palladium diimine complex has a structure shown as a formula (I). In the invention, the alpha-palladium diimine complex is loaded on the acryloyl chloride-modified magnesium chloride/alcohol compound carrier under the actin of a chemical bond, so that the influence of a functional group on the carrier surface on the active center is lowered, and the catalytic activity is higher than those of corresponding homogeneous phase catalysts; and moreover, the carrier and the catalyst have high bonding strength under the action of a valence bond, so that the active center can be effectively prevented from falling easily in the polymerizing process. The loaded alpha-palladium diimine can be taken as a catalyst for use in preparation of hyperbranched polyethylene, and has high catalyst activity; and the formula (I) is shown in the specifications.
Owner:SUN YAT SEN UNIV

Preparation method of light/pH-sensitive amphiphilic azobenzene polymer micelles

InactiveCN103193989ABreak the hydrophilic-hydrophobic balanceOrganic active ingredientsPharmaceutical non-active ingredientsPhenolPolypropylene
A preparation method of light / pH-sensitive amphiphilic azobenzene polymer micelles belongs to a field of functional polymer materials. The method comprises performing a radical polymerization for polymerizable monomer acrylic acid chloride to synthesize polypropylene chloride, using m-trifluoromethylaniline and phenol as raw materials to prepare m-trifluoromethylphenol containing azo groups, reacting the m-trifluoromethylphenol with 2-bromoethanol to synthesize 3-trifluoromethyl-4-ethanol oxygroup azobenzene, grafting the azo groups to the polypropylene chloride through an esterification reaction, hydrolyzing to obtain the amphiphilic polymer simultaneously containing the azo groups and carboxyl, and preparing the polymer into light / pH-sensitive polymer micelles through a micellization process. The polymer micelles are stable under a room temperature, and can be loaded with Nile red and other hydrophobic molecules; and the morphology of the micelles can be changed through ultraviolet irradiation and pH value adjusting, so that the loaded molecules can be released from the micelle. The polymer micelle not only has light responsiveness, but also has pH responsiveness, and has wide application prospect in fields of drug controlled release.
Owner:UNIV OF SCI & TECH BEIJING

Preparation method of low molecular weight polyacrylic ester acrylic ester for photo-curing

InactiveCN101967211AIncrease termination rateImprove the transfer constantCoatingsFunctional monomerPolymer science
The invention discloses a preparation method of low molecular weight polyacrylic ester acrylic ester for photo-curing, belonging to the field of photo-curing low polymers. The lower polymer has the advantages of low molecular weight, low dispersibility, low viscosity, uniform structure and excellent property after being cured and can be used for photo-curing main body resin. The low polymer is synthesized by a two-step method and consists of a main chain and a branch chain, wherein the main chain is a pure carbon-carbon bond and is prepared by acrylic ester double-bond copolymerization. A polymerization monomer consists of (methyl) alkyl acrylate and functional monomers. The branch chain is prepared by a condensation reaction of functional groups; and a reaction product of a (methyl) acrylic ester copolymer in the first step carries the functional groups capable of further reaction, and functional monomers with light reactivity are grafted in the reaction product, wherein the functional monomers can be (methyl) acrylic acid, acryloyl chloride and the like. The invention realizes the preparation of the lower polymers with low molecular weight by using methods of adding a chain transfer agent and controlling the mixture ratio of the monomers and the dosage of initiators, is simple and convenient to operate and easy to industrialized production and has broad application prospect.
Owner:BEIJING UNIV OF CHEM TECH

Modified hydrogel material used for 3D printing and application of same to drug loading

The invention discloses a modified hydrogel material used for 3D printing and application of the same to drug loading, belonging to the technical field of 3D printing materials. The modified hydrogel material is prepared through the following steps: adding a hydrogel material, acryloyl chloride and triethylamine into a solvent, carrying out a reaction in an ice bath for 12 h and then carrying out a reaction at normal temperature for 12 h; and washing a reaction product with a saturated sodium bicarbonate solution and then carrying out rotary evaporation so as to obtain the modified hydrogel material. The modified hydrogel is of a long-chain structure and has an active chemical group at its tail end; and as a photopolymerization initiator is added into the aqueous solution of the modified hydrogel, a crosslinking reaction occurs under the illumination of light with a wavelength of 365 nm, so rapid shaping of the material is realized. The modified hydrogel material prepared by using 3D printing technology and used for drug loading can be subjected to injection and printing at normal temperature without extra high-temperature apparatuses, low-temperature apparatuses or the like; and the material is easy to shape, fast in gelating speed, excellent in mechanical properties and beneficial for loading and effective release of different medicine molecules.
Owner:JINAN UNIVERSITY
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