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52 results about "Propargyl ether" patented technology
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Propargyl ether was used for the preparation of polyferrocenes, via polyaddition with 1,1′-bis(azidoethyl)ferro cene. It may be used for the preaparation of cyclic polystyrene. General description Propargylic ethers have been reported to participate in the preparation of various diindolylmethanes.
Method for improving mechanical property of silicon-containing arylacetylene resin based composite material
InactiveCN104962085AImprove bending strengthIncreased flexural modulusInterlaminar shearResin-Based Composite
The invention relates to a method for improving the mechanical property of a silicon-containing arylacetylene resin based composite material. The method specifically comprises the following steps of uniformly mixing benzoxazine containing propargyl ether and silicon-containing arylacetylene resin (PSA) in a solvent, and obtaining prepreg compounds of carbon fibers and modified silicon-containing arylacetylene resin PSA; after overlaying the prepreg compounds of the carbon fibers and the modified silicon-containing arylacetylene resin, obtaining a carbon fiber reinforced modified silicon-containing arylacetylene resin composite material through hot press molding. The propargyl ether type benzoxazine modified silicon-containing arylacetylene resin prepared by the method is wide in process window, can be cured and molded at the temperature of 120 to 260 DEG C, and cannot release small molecular substances during curing, the glass-transition temperature of the cured modified silicon-containing arylacetylene resin is still higher than 500 DEG C, the heat stability is not influenced greatly, the mechanical property of the PSA resin after modifying is improved. The interlaminar shear strength of the carbon fiber reinforced modified PSA based composite material is obviously improved, and is expected to be used as a high-temperature-resistant lightweight-structure material.
Owner:EAST CHINA UNIV OF SCI & TECH
2-(1',2',3'-triazole-4'-benzyloxy)-1,3,4,6-O-acetyl-D-glucose and preparation method and application thereof
ActiveCN104817605AGood anti-rectal cancer activitySugar derivativesSugar derivatives preparationTriazole derivativesPharmaceutical Substances
The core structure of 2-(1',2',3'-triazole-4'-benzyloxy)-1,3,4,6-O-acetyl-D-glucose with an anti-colorectal carcinoma activity is that a 1,2,4-triazole derivative substitutes 2-site of 1,3,4,6-O- acetyl-D-glucose. The above compound has a good activity of inhibiting colorectal carcinoma cells, and can be used as an anti-colorectal carcinoma medicine. A synthesis method of the above compound comprises the following steps: 2-amino-D-glucose hydrochloride and an azidation reagent are used as raw materials to generate a 2-azido-1,3,4,6-O-acetyl-D-glucose intermediate under an alkaline condition; 3-propargyl bromide and phenylcarbinol react under the action of sodium hydride to generate phenyl propargyl ether; and the 2-azido-1,3,4,6-O-acetyl-D-glucose intermediate and phenyl propargyl ether undergo a click reaction in a solvent under the catalysis of monovalent copper to generate 2-(1',2',3'-triazole-4'-benzyloxy)-1,3,4,6-O-acetyl-D-glucose.
Owner:HUBEI ENG UNIV
Methanol diesel fuel complex additive and preparation method thereof
ActiveCN101709234AGood compatibility stabilityStable in natureLiquid carbonaceous fuelsCyclohexanoneN-Butylamine
The invention discloses a methanol diesel fuel complex additive and a preparation method thereof. The complex additive is prepared from the following raw materials in parts by volume: 1-4 parts of diethyl phthalate, 1-8 parts of n-butylamine, 1-9 parts of isooctanol, 1-6 parts of cyclohexanone, 13-42 parts of lauryl methacrylate, 7-30 parts of mixed fatty glyceride, 1-5 parts of phenyl propargyl ether, 1-8 parts of dihexadecyl dimethyl ammonium chloride, 2-12 parts of ethyl formate, 2-14 parts of isooctyl nitrate and 1-6 parts of polyoxyethylene hexadeeylalkyl ether selies. The methanol diesel fuel complex additive can enable methanol diesel fuel to be evenly mixed and to be stably stored for more than 6 months, which effectively improves the fire behaviour of the methanol diesel fuel and inhibits the volatilization when the methanol content is higher; moreover, the production process is simple and the use is convenient, thereby being beneficial to the popularization and application of the methanol diesel fuel.
Owner:临沂星火知识产权服务有限公司
Preparation and application of propargyl ether-containing benzoxazine with high-TG characteristic
Owner:NAT CHUNG SHAN INST SCI & TECH
Propargyl ether modified silicon-containing aryne resin
The invention relates to a propargyl ether compound modified silicon-containing aryne resin, which is prepared by stirring 5-80 weight parts of propargyl ether compound and 50-95 weight parts of silicon-containing aryne resin (of which the degree of polymerization is 2-6) to react at the temperature of 90-180 DEG C for 0.5-4.0 hours in the presence of inert gas. The modified silicon-containing arylacetylene resin of the invention has the advantages that the combined resin structure can be properly controlled by designing (molecular structure); resin has favourable processability, low softening point and low molten resin viscosity, can be dissolved in various common solvents and is convenient to use; the resin and the fiber have favourable caking property; and resin can carry out cure reaction under the action of heat and radiation, even light to form high-degree crosslinking polymer, and no micromolecules are discharged when being solidified.
Owner:EAST CHINA UNIV OF SCI & TECH
2-(1',2',3'-triazolyl-4'-oxymethylenepyridyl)-1,3,4,6-O-acetyl-D-glucose and its preparation method and use
ActiveCN104945456AGood anti-rectal cancer activitySugar derivativesSugar derivatives preparationTriazole derivativesOxomethylene
The invention discloses 2-(1',2',3'-triazolyl-4'-oxymethylenepyridyl)-1,3,4,6-O-acetyl-D-glucose with anti-rectal cancer activity. The 2-(1',2',3'-triazolyl-4'-oxymethylenepyridyl)-1,3,4,6-O-acetyl-D-glucose has a core structure of 1,3,4,6-O-acetyl-D-glucose subjected to 1,2,4-triazole derivative 2-site substitution. The above compound has good rectal cancer cell inhibition activity and can be used as a drug for resisting rectal cancer. A compound synthesis method comprises that 2-amino-D-glucose hydrochloride and an azidation reagent as raw materials undergo a reaction under alkaline conditions to produce a 2-azido-1,3,4,6-O-acetyl-D-glucose intermediate, 3-propargyl bromide and aromatic methanol undergo a reaction under the action of sodium hydride to produce aromatic propargyl ether, and the 2-azido-1,3,4,6-O-acetyl-D-glucose intermediate and the aromatic propargyl ether undergo a click reaction in a solvent in the presence of monovalent copper as a catalyst to produce 2-(1', 2', 3'-triazolyl-4'-oxymethylenepyridyl)-1,3,4,6-O-acetyl-D-glucose.
Owner:HUBEI ENG UNIV
Method for preparing benzoxazine intermediate containing propargyl ether and resin thereof
InactiveCN101235131AThe synthesis method is simpleMild conditionsOrganic chemistryEpoxyHeat resistance
The invention discloses a new benzoxazine intermediate containing propargyl ether and a preparation method of relative polymer. The synthesis route comprises using monoamine containing propargyl ether group, dihydric phenol (or polyhydric phenol) containing rigid structure and formaldehyde as reaction materials to synthesize benzoxazine intermediate containing propargyl ether, solidifying and crosslinking to obtain thermosetting high-performance benzoxazine resin containing propargyl ether which has excellent heat resistance and glass transition point reaches 300DEG C. The inventive benzoxazine intermediate containing propargyl ether can be independently used or mixed with other benzoxazine intermediates, benzoxazine intermediate containing propargyl ether a or epoxy resin, while the solidified product has excellent heat resistance and the application for producing structural material, electric insulated material, electronic packaging material, fireproof material, glowing resistant material and brake material applied above 250DEG C.
Owner:SHANDONG UNIV
Oxazine and alkyne compound modified silicon-containing aryne resin and preparing method thereof
The invention relates to modified silicon-containing aryne resin. A preparing method of the modified silicon-containing aryne resin includes the following steps: (1) preparing silicon-containing aryne polymer, (2) preparing benzoxazine compound, (3) preparing propargyl ether compound, and (4) preparing the modified silicon-containing aryne resin, mixing 50-90 parts by weight of the silicon-containing aryne polymer obtained through the step (1), 5-25 parts by weight of the benzoxazine compound obtained through the step (2) and 5-25 parts by weight of the propargyl ether compound obtained through the step (3), and leading the mixture to be stirred for reacting in a reactor comprising a stirrer, a thermometer and a reflux condensing pipe with inert gases to obtain the modified silicon-containing aryne resin. The oxazine and alkyne compound modified silicon-containing aryne resin and the preparing method of the modified silicon-containing aryne resin have the advantages that the modified silicon-containing aryne resin can be dissolved in many common solvents, is low in softening point and melting resin viscosity, and can generate solidifying reaction under heat, irradiation and even light effect. Resin condensates are good in heat resistance and can be well bonded with reinforcing fiber, and compound materials of the modified silicon-containing aryne resin have good mechanical performance and heat resistance.
Owner:EAST CHINA UNIV OF SCI & TECH
Photochromic naphtho-pyrans compounds and synthetic method thereof
InactiveCN101215282AExcellent optical densityExcellent discoloration effectOrganic chemistryTenebresent compositionsChemical industryHalogen
The invention discloses a photochromic naphthopyrans compound and the synthesis process in the chemical industry technology field. The synthesis process comprises heating up 3 substituted beta naphthol and propargyl alcohol compound under the catalysis condition to reduce into propargyl ether, conducting a Claise rearrangement reaction, finally generating naphthopyrans compound through the cyclization of quinoid compound. The structural general formula is showed as followed, wherein R1 and R2 respectively represent alkyl, nitro, alkoxy and halogen atom. The naphthopyrans compound of the invention is mainly used as photochromic matters of lens such as sunglasses and windscreen of cars and the like.
Owner:SHANGHAI JIAO TONG UNIV
Carborane and preparation method thereof
InactiveCN102140105AStrong responsivenessSimple production processOrganic-compounds/hydrides/coordination-complexes catalystsGroup 3/13 element organic compoundsSynthesis methodsPlasticizer
The invention discloses a carborane and a synthesis method thereof. In the method, propiolic halide is adopted as a raw material to synthesize propargyl ether containing unsaturated carbon-carbon double bond through nucleophile substitution reaction, and the alkynyl in the propargyl ether is adducted with decaborane to obtain reactive carborane in which a carbon-carbon double bond is bonded on a cage type carborane structure through an ether bond. The synthesized reactive carborane, which is liquid at normal temperature, can have an effect of a plasticizer while being used as a composite solid burning-rate catalyst of a propellant. The unsaturated group carbon-carbon double bond, which has disconjugacy and strong reactivity, contained in the carborane is expected to overcome migration through taking part in the crosslinking curing reaction with the composite solid propellant. The carborane containing unsaturated carbon-carbon double bond has low synthesis cost and simple and convenient production technique, and is beneficial for industrial production.
Owner:天元航材(营口)科技股份有限公司
Electroplating solution for phosphorous acid system plating of Ni-P alloy and electroplating method
The invention discloses an electroplating solution for phosphorous acid system plating of Ni-P alloy and an electroplating method. The electroplating solution comprises 200-260g / L NiSO4.6H2O, 30-70g / L NiCl2.6H2O, 20-50g / L H3PO3, 30-50g / L H3BO3, 25-45g / L fluoride, 25-50g / L citrate, 5-10g / L a saccharin salt, 0.5-0.7g / L hydroxyethyl propargyl ether and 0.05-0.2g / L a cationic surfactant. According to the invention, citrate is adopted as the coordination agent to be in favor of co-deposition of nickel and phosphorus and better control of the nickel and phosphorus content of the coating, and hydroxyethyl propargyl ether and the saccharin salt are used in combination as the brightener. Therefore, the Ni-P alloy coating has great hardness, strong wear resistance, and corrosion resistance.
Owner:WUXI XUEJIANG ENVIRONMENT ENG EQUIP
Ethynyl phenyl-terminated silicon-containing aryl propargyl ether resin and synthesis thereof, ternary resin and preparation thereof, and composite material and preparation thereof
ActiveCN108752374AImprove heat resistanceImprove mechanical propertiesSilicon organic compoundsArylHeat resistance
The invention discloses ethynyl phenyl-terminated silicon-containing aryl propargyl ether resin and synthesis thereof, ternary resin and preparation thereof, and a composite material and preparation thereof. The structural formula of the silicon-containing aryl propargyl ether resin is shown in a formula II, and the polymerization degree n is equal to 2 to 3. The formed silicon-containing aryl propargyl ether resin with a novel terminal group structure improves the heat stability, and improves the mechanical property of ethynyl phenyl-terminated silicon-containing aryl propargyl ether modifiedresin through blending with cyanate ester and benzoxazine, thereby providing the ethynyl phenyl-terminated silicon-containing aryl propargyl ether resin with excellent mechanical property and good heat resistance, and is applied to preparation of carbon fiber reinforced composite materials.
Owner:EAST CHINA UNIV OF SCI & TECH
Cyanide-free silvering electroplating solution and electroplating method
The invention discloses a cyanide-free silvering electroplating solution and an electroplating method. The cyanide-free silvering electroplating solution includes: 25-35g / L silver nitrate, 90-110g / L 2, 4-imidazolinedione or 2, 4-imidazolinedione with the heterocyclic ring substituted by any group, 60-90g / L carbonate, 30-40g / L pyrophosphate, 0.30-0.45g / L hydroxypropyl propargyl ether, 0.10-0.25g / L benzaldehyde-2-sodium sulphonate, and 0.15-0.30g / L N, N-bis(hydroxyethyl)ethylamine. According to the technical scheme, 2, 4-imidazolinedione or 2, 4-imidazolinedione with the heterocyclic ring substituted by any group is selected as the complexing agent of the electroplating solution, so that the electroplating solution has good stability, and the coating has strong color change resistance and weldability.
Owner:WUXI HUAYE IRON & STEEL
Electroplating liquid for electroplating treatment
The invention discloses an electroplating liquid for an electroplating treatment. The electroplating liquid is prepared from the following raw material components in parts: 20-25 parts of nickel oxide, 15-20 parts of zinc sulphate, 10-12 parts of aluminium sulphate, 13-15 parts of stannous sulphate, 10-12 parts of manganese sulphate, 3-5 parts of 1,4-bis(phenylacetenyl) benzene, 3-4 parts of dipolyphenyl propargyl ether, 2-3 parts of sodium benzoate, 10-20 parts of oxalic acid, 8-10 parts of potassium fluoborate, 6-8 parts of potassium fluotitanate, 5-6 parts of hydrofluoric acid, 5-8 parts of sodium fluosilicate, 3-5 parts of lead acetate, 10-15 parts of cobalt acetate, 10-12 parts of zinc acetate, 10-15 parts of ethylene glycol monomethyl ether, 3-5 parts of triethylene glycol, 2-4 parts of sodium tripolyphosphate, 3-5 parts of sodium hexametaphosphate, 3-5 parts of sodium pyrophosphate and 8-10 parts of silicone oil. The electroplating liquid for the electroplating treatment is good in corrosion resistance and wear resistance, capable of effectively preventing copper atoms from diffusing to an electrolyte during a use process and reducing waste, fast in precipitation speed, wide in current density range, low in electric energy consumption, good in electroplating quality, and capable of prolonging the service lives of metal copper wires.
Owner:黄惠娟
Bimaleimide resin modified by benzene dipropargyl ether and preparation method thereof
The invention relates to a modified bismaleimide resin with meta-phenethyne propyl ether and a preparation method thereof. The invention is characterized in that: by adopting withmeta-phenethyne propyl ether as modifier, copper chloride or / and cuprous chloride as catalyst, the modified bismaleimide resin is obtained by stirring and reaction at the temperature of 150-160 DEG C. The modified bismaleimide resin has not only excellent processability, but also excellent toughness and thermal stability after materials are cured, besides, glass transition temperature is over 400 DEG C. Furthermore, carbon fiber reinforced composite produced with the modified bismaleimide resin has excellent mechanical property and high temperature resistance performance and can be widely applied to high-technical fields such as aviation, aerospace, etc.
Owner:EAST CHINA UNIV OF SCI & TECH
Preparation method of biodiesel composite additive
ActiveCN103642543ALower freezing temperatureGood fluidity at low temperatureLiquid carbonaceous fuelsBiodieselOil additive
The invention belongs to the field of fuel oil additives and in particular relates to a preparation method of a biodiesel composite additive. The preparation method of the biodiesel composite additive comprises the following steps: adding dodecyl methacrylate, steary methacrylate, isooctyl nitrate and dicthyl ortho-phthalate into a raw material mixing tank and stirring evenly; adding maleic anhydride and isooctanol and stirring evenly; and then adding tert-butylamine and double hexadecyl dimethyl ammonium chloride and stirring for 30-35 minutes; adding polyoxyethylene hexadecy phenolic ether and phenyl propargyl ether into a solution, heating to 45-50 DEG C, stirring for 20-30 minutes at 0.5-1.0MP, standing for 24 hours and filtering to remove sediment. The biodiesel composite additive prepared by the preparation method is good in cold filtering point reducing effect; and meanwhile, the problem of reversion of the cold filtering point can be avoided; the effects of other diesel additives are not influenced; and the biodiesel composite additive is efficient and stable in dispersion capability and good in oil solubility.
Owner:临沂星火知识产权服务有限公司
Composition for preparing propargyl ether
ActiveCN108722484AEfficient preparationReduce dosageSaccharide with carbocyclic radicalsCarbamic acid derivatives preparationPropargyl etherBoron
The invention discloses a composition for preparing propargyl ether. The composition comprises the following components: a boron compound, a copper compound, a ligand and alkali. According to the composition, copper catalyzing propargyl substitution reaction and boron catalyzing fatty alcohol activating technology are combined for the first time to successfully realize efficient preparation of propargyl ether. The composition has a good application prospect.
Owner:SICHUAN UNIV
Method for turning biomass cardanol into chloroprene rubber internal plasticizer by click chemistry
Relating to a plasticizer preparation method, the invention discloses a method for turning biomass cardanol into a chloroprene rubber internal plasticizer by click chemistry. The method includes: firstly reacting cardanol with propargyl bromide to prepare propargyl ether cardanol and chloroprene rubber with an azido structure, then carrying out click chemistry reaction to realize reaction of the propargyl ether cardanol and chloroprene rubber with an azido structure, thus realizing internal plasticization of chloroprene rubber. The method for internal plasticization of chloroprene rubber withthe natural biomass raw material by click chemistry reaction disclosed by the invention has the advantages that: the cardanol raw material is sufficient, the chemical reaction process is simple, the product has obvious plasticization effect, excellent thermal stability and near zero migration of plasticizer, therefore the chloroprene rubber internal plasticizer is a new product conforming to the green and environment-friendly circular economy concept and has very broad market prospects.
Owner:SHENYANG INSTITUTE OF CHEMICAL TECHNOLOGY
Synthesis method of cyclopropyl allene derivatives
The invention relates to a synthesis method of cyclopropyl allene derivatives. According to the method, cyclopropyl acetylene is used as starting materials for preparing metal cyclopropylacetylide and takes reaction with aldehyde for preparing cyclopropyl propargyl alcohol derivatives, hydroxyls of the cyclopropyl propargyl alcohol derivatives are protected to prepare cyclopropyl propargyl ether or cyclopropyl propargyl ester, and the cyclopropyl propargyl ether or the cyclopropyl propargyl ester takes reaction with Grignard reagents under the metal catalysis, and cyclopropyl allene is finally obtained. The method provided by the invention solves the problems of the existing method that raw materials cannot be easily obtained, the price is high, and the like. The method provided by the invention has the advantages that the raw materials are easy to obtain, in addition, the cyclopropyl is firstly introduced, and various substituent functional groups are then introduced, the variable of the synthesis of various kinds of cyclopropyl allene depends on the aldehyde and the Grignard reagents adopted in the reaction in the last step, and the Grignard reagents are prepared from halogenated hydrocarbon which is cheap and is easy to obtain (the varieties are many), so the method provided by the invention is more suitable for the synthesis of a series of cyclopropyl allene with various substituent groups.
Owner:YANGZHOU UNIV
Ternary system resin and preparation method thereof, and composite material and preparation method thereof
InactiveCN108485279AImprove mechanical propertiesImprove heat resistancePolymer sciencePropargyl ether
The invention discloses a ternary system resin and a preparation method thereof, and a composite material and a preparation method thereof. The preparation method of the ternary system resin comprisesthe following steps: dissolving arylsilyl-containing propargyl ether resin into a solution, uniformly mixing with cyanate ester and benzoxazine, and performing reduced pressure rotary evaporateion, thereby obtaining the product. If the sum of the addition amount of the arylsilyl-containing propargyl ether resin, cyanate ester and benzoxazine is 100%, the sum of the mass fraction of the cyanate ester and benzoxazine is 10-50%, and the mass fraction of the arylsilyl-containing propargyl ether resin is 50-90%. The mechanical property of the arylsilyl-containing propargyl ether resin is improvedby mixing the cyanate ester and benzoxazine, so that the modified arylsilyl-containing propargyl ether resin with excellent mechanical property and high heat resistance is provided and is used for preparing a carbon fiber reinforced composite material.
Owner:EAST CHINA UNIV OF SCI & TECH
Application of cinchona alkaloid derivatives as cytotoxic compounds
InactiveCN104825453AAntineoplastic agentsHeterocyclic compound active ingredientsAbsolute configurationCytotoxicity
The subject matter of the invention is the application of 9-O-propargyl ethers of cinchona alkaloids of general formula represented by formula (1) wherein respective ethers have the following absolute configuration at C-8 and C-9 atoms: (8R,9S) –cinchonine configuration or (8S,9R) –cinchonidine configuration or (8R,9R) –9-epicinchonine configuration or (8S,9S) –9-epicinchonidine configuration for the manufacture of drugs used in cancer chemotherapy.
Owner:ADAM MICKIEWICZ UNIV
Benzene ring fused 5/6/7/6 tetracyclic compound and synthesis method thereof
ActiveCN114591277AEasy to operateStereoselective singleOrganic chemistry methodsAgainst vector-borne diseasesBenzenePtru catalyst
The invention discloses a benzene ring-fused 5 / 6 / 7 / 6 tetracyclic compound and a synthesis method thereof, and the benzene ring-fused 5 / 6 / 7 / 6 tetracyclic compound is obtained by taking an o-alkynyl benzaldehyde compound connected with cyclohexadienone propargyl ether as a raw material, carrying out heating reaction in a solvent tetrahydrofuran under the catalysis of a platinum catalyst, and carrying out post-treatment. The invention provides a novel synthesis method of a benzene ring fused 5 / 6 / 7 / 6 tetracyclic compound which is not easy to prepare by a conventional method, four continuous chiral centers can be constructed in one step, and the compound has excellent stereoselectivity; the method has the advantages of simplicity in operation, wide substrate range, high yield and the like.
Owner:NANJING FORESTRY UNIV
1-(1',3',4',6'-tetra-O-acetyl-D-glucose)-4-para-substituted aromatic-[1,2,3]-triazole, preparation method and application thereof
ActiveCN104945457AGood anti-rectal cancer activitySugar derivativesSugar derivatives preparationPyranoseTriazole derivatives
The invention relates to preparation and application of 1-(1',3',4',6'-tetra-O-acetyl-alpha / beta-D-glucopyanosyl)-4-para-substituted benzyl oxyl methyl-[1,2,3]-triazole serial compounds, wherein the core structure thereof is formed by the substitution of 1,2,3-triazole derivatives at 1,4. The compounds have a good inhibitory activity for rectal carcinoma cells, and can serve as medicine for resisting rectal cancer. The synthetic method of the compounds comprises the following steps: a 2-azido-1,3,4,6-O-acetyl-D-glucose intermediate is prepared; 4-para-substituted arylpropargyl ether is prepared; 2-azido-1,3,4,6-O-acetyl-D-glucose intermediate and 4-para-substituted arylpropargyl ether are subjected to a click reaction in a solvent under the catalyzation of copper(i) to form 1-(1',3',4',6'-tetra-O-acetyl-alpha / beta-D-glucopyanosyl)-4-para-substituted benzyl oxyl methyl-[1,2,3]-triazole serial compounds.
![1-(1',3',4',6'-tetra-O-acetyl-D-glucose)-4-para-substituted aromatic-[1,2,3]-triazole, preparation method and application thereof](https://images-eureka-patsnap-com.libproxy1.nus.edu.sg/patent_img/cb03b5a7-db0f-4b60-a2bc-dc4cc65f7225/DEST_PATH_DEST_PATH_IMAGE002.PNG "1-(1',3',4',6'-tetra-O-acetyl-D-glucose)-4-para-substituted aromatic-[1,2,3]-triazole, preparation method and application thereof")
Owner:HUBEI ENG UNIV
Thermosetting resin containing propargyl ether and preparation method of thermosetting resin
The invention provides thermosetting resin containing propargyl ether and a preparation method of thermosetting resin. The thermosetting resin has a molecular structural formula with a structure as follows: formula (shown in the description). A monomer structure prepared by virtue of the thermosetting resin is proved through various analysis methods, and the temperature of a curing peak of propargyl ether modified benzoxazine thermosetting resin synthesized by virtue of the method is 180-225 DEG C; and the residual carbon rate of the resin reaches up to 50%-70% at 800 DEG C. Phenolic hydroxylgroups are produced during the curing of benzoxazine and are capable of catalyzing the cross-linking reaction of propargyl. By virtue of propargyl, the polymerization temperature of benzoxazine can belowered. Propargyl contains a carbon-carbon triple bond and is unsaturated bond type polybenzoxazine, so that the processing property of benzoxazine resin is improved.
Owner:CHANGZHOU HONGFA ZONGHENG ADVANCED MATERIAL TECH
Synthesis method of linear epoxy resin containing multiple glycidyl ether groups
The invention discloses a linear epoxy resin containing multiple glycidyl ether groups and a preparation method of the linear epoxy resin. The method comprises the following steps: placing propargyl glycidyl ether, a propargyl ether (or an alkyl-1-alkyne) and a dimercapto compound into a reactor, adding a catalyst and a solvent, and carrying out a reaction under ultraviolet irradiation in an ice-water bath for 1.0-6.0 h; and then adding allyl glycidyl ether and a catalyst into the above reaction solution and continuously performing a reaction for 0.5-3.0 h, removing the solvent and unreacted raw materials by precipitation after the reaction is completed, and performing vacuum drying to obtain the linear epoxy resin containing multiple glycidyl ether groups. The provided preparation methodis simple and efficient, the reaction condition is mild, and the synthesis process is environment-friendly.
Owner:YANTAI UNIV
Propargyl ether resin with main chain containing pyridine ring aromatic bisphenol-type terminal and preparation method thereof
InactiveCN103288717AImprove heat resistanceEasy to aggregateOrganic chemistryAdhesiveHeat resistance
The invention discloses a propargyl ether resin with a main chain containing a pyridine ring aromatic bisphenol-type terminal and a preparation method thereof. The resin is characterized in that the structural formula is shown in the specification and the resin is prepared by utilizing a phase transfer catalysis reaction method. The prepared resin structurally comprises a propargyl ether structure, and pyridine ring is introduced in the resin, so that the cured products of the resin are excellent in heat resistance. The propargyl ether resin disclosed by the invention can be applied to the fields of resin matrixes, high-temperature-resistant adhesives, special coatings, ceramic precursors, functional materials and the like.
Owner:BEIHANG UNIV
Biodiesel additive and preparation method thereof
The invention relates to a biodiesel additive and a preparation method of the biodiesel additive. The biodiesel additive comprises the following components by weight: 10-25 parts of dodecyl methacrylate, 10-20 parts of cyclohexylamine, 7-16 parts of methylbenzene, 2-15 parts of isooctyl nitrate, 5-15 parts of polyisobutylene amine, 1-7 parts of diethyl phthalate, 1-10 parts of phenyl propargyl ether, 5-15 parts of benzotriazole, and 1-8 parts of isooctyl alcohol. The provided biodiesel additive has an excellent effect of reducing the cold filter plugging point, does not cause the problem of reversion of the cold filter plugging point, does not affect the effects of other diesel additives, has an excellent stable dispersing power, and is excellent in oil solubility.
Owner:桂林市雁山区青少年活动中心
A kind of synthetic method of linear epoxy resin containing multiple glycidyl ether groups
The invention discloses a linear epoxy resin containing multiple glycidyl ether groups and a preparation method thereof. In the method, propargyl glycidyl ether, propargyl ether (or alkyl-1-alkyne) and dimercapto compound are placed in a reactor, and a catalyst and a solvent are added, and react under ultraviolet light irradiation in an ice-water bath 1.0-6.0 hours; then add allyl glycidyl ether and catalyst to the above-mentioned reaction solution and continue to react for 0.5-3.0 hours, after the reaction finishes, remove the solvent and unreacted raw materials by precipitation, and vacuum dry to obtain a compound containing multiple Linear epoxy resin with glycidyl ether groups. The preparation method provided by the invention is simple and efficient, the reaction conditions are mild, and the synthesis process is environmentally friendly.
Owner:YANTAI UNIV
Ethynylphenyl-terminated silicon-containing aryl propargyl ether resin and its synthesis, ternary resin and its preparation, composite material and its preparation
ActiveCN108752374BImprove heat resistanceImprove mechanical propertiesSilicon organic compoundsArylPolymer science
Owner:EAST CHINA UNIV OF SCI & TECH
A kind of synthetic method of cyclopropyl allene derivative
Owner:YANGZHOU UNIV
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