436 results about "Adamantane" patented technology

The invention discloses a high-performance composite solvent-resistant nanofiltration membrane with a rigid twisted non-planar structure polyamide layer and a preparation method of the high-performance composite solvent-resistant nanofiltration membrane. The preparation method comprises the steps of preparation of the rigid twisted non-planar structure polyamide layer and surface modification. A water phase solution containing adamantane diamine and m-phenylenediamine and an organic phase solution containing 1, 3, 5-trimesoyl chloride and acetone are subjected to interfacial polymerization reaction to prepare a polyamide layer with a rigid twisted non-planar structure, and then a polyphenol modifier is used for carrying out hydrophilic modification on the polyamide layer, so that the rigid twisted non-planar structure is obtained. The pure water permeability and retention rate of the solvent-resistant nanofiltration membrane are obviously improved; due to the introduction of adamantane diamine, the interfacial polymerization process and the formation of a polyamide layer are remarkably regulated and controlled, and the separation performance of the solvent-resistant membrane is greatly improved on the premise that the interception performance of the membrane is hardly reduced; the preparation process is simple, and the prepared membrane is excellent in performance and has a good application prospect in the aspect of organic solvent separation.

The invention relates to the technical field of automobile tires, and discloses a new energy automobile tire self-repairing sealing material adhered with mute cotton. The preparation method comprises the following steps: adding a modified polyurethane adhesive, C5 petroleum resin and a modified carbon nanotube filler into absolute ethyl alcohol, mixing to obtain a self-repairing liquid, adhering polyurethane cotton to the upper part of the self-repairing liquid, and drying to obtain the new energy automobile tire self-repairing sealing material adhered with the mute cotton. Disulfide bonds, boric acid ester bonds and imine bonds introduced into polyurethane through a chain extension reaction and diselenide bonds introduced into carbon nanotubes all belong to dynamic covalent bonds, so that the self-repairing performance of the material is improved; by introducing a rigid benzene ring and naphthyl aromatic structure, the mechanical property of the self-repairing sealing material is improved; the carbon nano tube can play a role in skeleton supporting in a polyurethane matrix, and the mechanical property of the material is further improved by introducing an adamantane rigid structure into the carbon nano tube.

The invention relates to the technical field of supported metallocene catalysts, in particular to a supported metallocene catalyst additive as well as a preparation method and application thereof. The supported metallocene catalyst additive has the following structure: # imgabs0 #, R is selected from C1-C10 alkyl groups, R1 and R3 are selected from alkyl groups and adamantyl groups and are located at ortho-para positions of-OH, R2 is selected from C1-C10 alkyl groups and cycloalkyl groups, and R'is selected from alkyl groups. The additive can greatly retain the catalytic activity and copolymerization performance of a metallocene catalyst, improve the metal loading capacity and catalytic activity, and reduce the dosage of a traditional cocatalyst MAO.

The invention discloses polyrotaxane with controllable cyclodextrin coverage rate as well as a preparation method and application of the polyrotaxane, and belongs to the technical field of polyrotaxane materials. The preparation method comprises the following steps: dissolving alpha-cyclodextrin, 3-hydroxyadamantane-1-carboxylic acid and polyethylene glycol diamine in deionized water, refrigerating and assembling to form quasi-polyrotaxane, and blocking to obtain polyrotaxane; wherein the polyethylene glycol diamine is prepared from polyethylene glycol and N, N '-carbonyldiimidazole, and the cyclodextrin coverage rate of the polyrotaxane is directionally regulated and controlled by regulating and controlling the mass ratio of the alpha-cyclodextrin to the 3-hydroxyadamantane-1-carboxylic acid, the adding sequence of the 3-hydroxyadamantane-1-carboxylic acid and the refrigerating and assembling time. Based on the mechanism that 3-hydroxyadamantane-1-carboxylic acid and polyethylene glycol compete in a cyclodextrin cavity, polyrotaxane with a cyclodextrin coverage rate of 0.5-2.5% is synthesized, and a polymer based on the polyrotaxane has better ductility and mechanical properties.

The invention discloses an anthraquinone dye as well as a preparation method and application thereof. The anthraquinone dye disclosed by the invention comprises a compound with a chemical formula as shown in formula (I): # imgabs0 #, wherein W1-W8 are independently selected from H, OH, substituted or unsubstituted C1-C30 alkyl groups or groups containing adamantyl groups; and at least one of W1-W8 is a group containing adamantyl. The anthraquinone dye with high solubility and optical aging resistance is obtained by modifying an anthraquinone main body through adamantane and utilizing high chemical stability and steric hindrance effect of adamantane. The ink prepared from the anthraquinone dye has stability and excellent display effect in electrowetting display, and electrowetting with high light stability is obtained.

The invention relates to the technical field of oil-gas field development, and discloses a preparation method of a polymer coating agent for drilling fluid. Acrylamide, acrylic acid, adamantane modified quaternary phosphonium salt modified pyridyl benzoxazine and silane imidazoline quaternary ammonium salt are polymerized and then dried, and the polymer coating agent for the drilling fluid is obtained. Due to the benzoxazine, benzene ring and adamantane structures, the rigidity and stability of the polymer coating agent at high temperature are improved; hydrophilic cation ends in the quaternary phosphonium salt and the quaternary ammonium salt are adsorbed on the surface of the shale, and hydrophobic ends cover the surface of the shale, so that contact infiltration of water molecules is inhibited, and the coating inhibition property is improved; a silicon-oxygen bond is not easy to break at high temperature, so that the high-temperature resistance of the coating agent is improved; silane reacts with silicon-oxygen bonds on the surface of the shale to be grafted on the surface of the shale, so that the coating inhibition effect is enhanced; the pyridine group and the imidazoline group increase adsorption points of the polymer coating agent, multi-point adsorption is carried out on drilling cuttings and well walls, coating is formed, and the coating inhibition effect is further enhanced.

The invention provides a polybenzyl chloride type monomolecular resin photoresist based on an adamantane structure as well as a preparation method and application of the polybenzyl chloride type monomolecular resin photoresist. According to the invention, the advantages of non-chemically amplified photoresist and monomolecular resin are combined, and a series of monomolecular resin based on adamantane core and periphery grafted benzyl chloride groups are synthesized. The series of compounds are simple in synthesis process, have very high thermal stability and good film-forming property, and can meet the requirements of a photoresist process. Electron beam and extreme ultraviolet lithography show that the series of photoresist materials are expected to meet the requirement of high-resolution lithography.

The invention discloses a preparation method of silane or siloxane containing adamantyl. According to the invention, adamantane carboxylic acid is taken as a starting raw material, an adamantane compound containing double bonds at the tail end is obtained through an esterification reaction, and then the adamantane compound and hydrogen-containing silane or hydrogen-containing siloxane are subjected to a hydrosilylation reaction to prepare adamantyl-containing silane or siloxane. The method is mild in reaction condition, simple, convenient and easy to operate, capable of achieving preparation of adamantyl silane or siloxane of various structures, wide in application range and capable of providing diversified choices for development of novel adamantyl modified organic silicon materials.

The purpose of the present invention to provide: a novel phosphorus compound; a method for synthesizing the compound; a flame retardant containing the compound; and a resin composition containing the compound and a resin component. The purpose of the present invention is to additionally provide: a prepreg using the resin composition; a resin-equipped metal foil; a thermosetting resin film; a metal-clad laminated board; a printed wiring board; and an adhesive. The present invention relates to a phosphorus compound represented by chemical formula (I), a synthesis method, and a use thereof. (In the formula, the R1's are the same or different and represent a hydrogen atom, a C1 to C10 alkyl group, a C2 to C10 alkenyl group, a C2 to C10 alkynyl group, or an aryl group optionally substituted with a C1 to C10 alkyl group or phenyl group; R2 represents a C1 to C10 alkyl group, a C2 to C10 alkenyl group, a C2 to C10 alkynyl group, or an aryl group optionally substituted with a C1 to C10 alkyl group or phenyl group, and when there are a plurality of R2's, the R2's may be the same or different; Y1 represents a phenylene group optionally substituted with a C1 to C10 alkyl group, a naphthylene group, or a group indicated by formula (A); and the n's are the same or different and represent an integer of 0-3.) (In the formula, the R3's are the same or different and represent a hydrogen atom, a C1 to C10 alkyl group, a C2 to C10 alkenyl group, a C2 to C10 alkynyl group, or an aryl group optionally substituted with a C1 to C10 alkyl group or phenyl group; and Y2 represents a single bond, a C1 to C15 alkylene group optionally substituted with a phenyl group, a C5 to C15 cycloalkylene group, a C5 to C15 cycloalkylidene group optionally substituted with a C1 to c10 alkyl group, a phenylene group, an adamantane-1,3-ylene group, an adamantane-2-ylidene group, an oxygen atom, a sulfur atom, a sulfinyl group, a sulfonyl group, or a fluorene-9-ylidene group.)

The invention belongs to the technical field of oil field drilling, and particularly relates to a preparation method of modified sulfonated phenolic resin for drilling fluid, and the modified sulfonated phenolic resin is prepared by chemically bonding a functional monomer simultaneously containing sulfonic acid anions and quaternary ammonium cations in a phenolic resin structure in a free radical polymerization mode. The quaternary ammonium cation group adsorbs negatively-charged clay particles, the adamantyl group can be adsorbed in hydrophobic areas of the clay particles through association, and the sulfonated phenolic resin can be quickly adsorbed on the surface of the clay in a double adsorption mode of hydrogen bonds and electrostatic attraction. Besides, a large number of sulfonic acid anions can form a compact solvation layer after hydration, and a compact coating film can be formed when phenolic resin is quickly adsorbed on the surface of clay, so that the clay is prevented from being in contact with water, the stability of clay particles is realized, a compact mud cake can be formed, and the prepared phenolic resin has good filtrate loss reduction performance.

The invention provides low-dielectric and high-heat-resistance adamantane type maleimide resin as well as a preparation method and application thereof, and belongs to the technical field of synthetic resin for electronic materials. The preparation method comprises the following steps: S1, dissolving an adamantane type amino compound to obtain a solution A; dissolving maleic anhydride to obtain a solution B; s2, dropwise adding the solution A into the solution B; s3, acetic anhydride and a catalyst are added into the solution obtained after the stirring reaction in the step S2, then the temperature is increased to 90-110 DEG C, and a heat preservation reaction is conducted for 4-6 h; and S4, cooling the solution subjected to the heat preservation reaction in the step S3, and then washing and removing the solvent to prepare the low-dielectric and high-heat-resistance adamantane type maleimide resin. The adamantane type maleimide resin provided by the invention can solve the problems of poor solubility and high brittleness of maleimide resin, and meanwhile, the resin is endowed with excellent heat resistance. In addition, the adamantane type maleimide resin can also be used for preparing copper-clad plates with low dielectric constant and low dielectric loss.

The invention provides a synthesis method of (3-hydroxyadamantane-1-methoxycarbonyl) difluoromethanesulfonate photoacid generator anions, and relates to a photoacid generator anion synthesis method of (3-hydroxyadamantane-1-methoxycarbonyl) difluoromethanesulfonate photoacid generator anions. The preparation method comprises the following steps: S1, uniformly mixing a solvent and difluorobromoacetic acid, then adding CDI, fully stirring, then adding 3-hydroxy-1-adamantane methanol, fully reacting, then adding bicarbonate, carrying out liquid separation to obtain an organic phase A, washing the organic phase A, and carrying out drying and spin-drying; s2, fully mixing the spin-dried substance with NaHCO3, Na2S2O4, acetonitrile and ultrapure water, then carrying out liquid separation to obtain an organic phase B, and carrying out drying and spin-drying on the organic phase B; and S3, dissolving the spin-dried substance in water, then adding an H2O2 solution, carrying out a full reaction, and then carrying out cooling and post-treatment so as to obtain the photoacid generator anions. According to the method, 3-hydroxy-1-adamantane methanol and difluorobromoacetic acid are used as reaction raw materials, esterification reaction is performed under the condition of adding CDI to obtain a first-step reaction intermediate, then acylation sulfonation and oxidation reaction are performed to obtain the target product photoacid generator anion, the reaction process is mild in condition, and the product purity is high.

The invention discloses organic silicon modified acrylic resin antifouling paint and a preparation method thereof, and particularly relates to the field of chemical paint. The antifouling paint is prepared from the following components in parts by mass: 8 to 12 parts of adamantane acrylate, 5 to 8 parts of trifluoroethyl acrylate, 2 to 3 parts of 2-hydroxyethyl acrylic phosphate, 0.8 to 1.2 parts of tert-butyl peroxypivalate, 4 to 6 parts of tridecafluorooctyltrimethoxysilane, 1 to 2 parts of isophorone diisocyanate, 3 to 6 parts of fluorosilane modified nano TiO2 and 1 to 2 parts of graphene oxide. 20-30 parts of deionized water, 0.5-1 part of a polyether modified polysiloxane defoaming agent, and 0.3-0.5 part of an ultraviolet light absorber UV-327 can be additionally added. The preparation method comprises the following steps: S1, preparing isocyanate modified fluorine-containing organic silicon; s2, preparing a ternary copolymer prepolymer; s3, preparing a modified resin matrix; s4, preparing a fluorosilane modified nano TiO2 / graphene oxide composite filler dispersion liquid; and S5, mixing the resin matrix and the dispersion liquid, and performing stirring and vacuum desolventizing to obtain a finished product. The coating has the characteristics of super-hydrophobicity, high hardness, strong adhesion, long-acting antifouling property, aging resistance and environmental protection.

The invention belongs to the technical field of saccharide separation, and relates to a high-selectivity spiral-wound membrane and application thereof. A separation membrane of a membrane bag contained in a membrane group of the high-selectivity spiral-wound membrane is formed by a polyamide separation membrane, and the polyamide separation membrane comprises a porous supporting layer and a modified polyamide separation layer loaded on the surface of the porous supporting layer; the modified polyamide separation layer is formed by interfacial polymerization of composite polyamine and polyacyl chloride in the presence of humate, and the composite polyamine is a compound of aliphatic polyamine and adamantane modified diamine according to a mass ratio of 1: (0.1-0.5). The adamantane modified diamine is a product obtained by carrying out addition reaction on adamantane diamine and alicyclic diisocyanate according to a molar ratio of (1.2-2): 1; the general formula of the adamantane diamine is NH2 (CH2) nR1 (CH2) mNH2. The spiral-wound membrane provided by the invention can stably operate at relatively high flux under a high-pressure condition, and can be stably used for separating monosaccharide and polysaccharide for a long time.

The invention discloses a sewage treatment agent based on a graphene composite material and a preparation method of the sewage treatment agent, and belongs to the technical field of sewage treatment.The preparation method is simple, raw materials are easy to obtain, the cost is low, and the sewage treatment agent is suitable for industrial production. The composite material has an efficient adsorption effect on common heavy metal ions in sewage, can be effectively applied to the field of sewage treatment, and has a good application prospect.

The invention relates to the technical field of drilling fluids, and discloses a bentonite-containing drilling fluid and a preparation method thereof.The bentonite-containing drilling fluid is obtained by adding modified polyurethane, bentonite, a calcium chloride solution, a Tween 20 emulsifier and white oil into a stirrer and stirring. A quaternary ammonium salt group in the modified polyurethane interacts with clay particles, so that hydration dispersion of the clay can be effectively inhibited, the stability and rheological property of the drilling fluid can be maintained, and the phenomenon of filtration loss is reduced; wherein the polyurethane absorbs water and expands underground to form a high-strength elastic body which enters cracks in a well wall so as to achieve a plugging effect, and the nitrile rubber has an elastic deformation characteristic and can also enter the cracks in the well wall so as to achieve the plugging effect; and the adamantyl group contained in the drilling fluid improves the high temperature resistance of the drilling fluid.

The invention provides a colorless transparent high-temperature-resistant polyimide material and a preparation method thereof. The colorless transparent high-temperature-resistant polyimide material is prepared from diamine and aromatic dianhydride, the diamine comprises a first diamine compound, and the first diamine compound has a nitrogen-containing aromatic heterocyclic structure and an adamantane structure. The high-performance transparent polyimide (CPI) film is prepared through molecular multi-level synchronous design, a series of diamines containing nitrogen-containing heteroaromatic rings and adamantane structures are synthesized, firstly, the rigidity and linearity of molecular chains are improved through introduction of the nitrogen-containing heteroaromatic rings, and the film is endowed with excellent heat resistance; secondly, an adamantane structure is introduced to inhibit the charge transfer (CT) effect in PI molecular chains and between the molecular chains, and the optical performance of the film is improved. The advantages of all monomers are synthesized through copolymerization, the comprehensive performance of the film is regulated and controlled, and the obtained high-performance CPI film has wide application prospects in the fields of flexible electronics and spacecraft thermal management.

The invention provides an anti-fouling self-cleaning powder coating and a preparation method thereof, and belongs to the technical field of powder coatings. The preparation method comprises the following steps: mixing the modified resin, the modified filler, the curing agent, the antioxidant, the flatting agent and the dispersing agent, and sequentially performing melt extrusion, tabletting, crushing and screening to obtain the anti-fouling self-cleaning powder coating. Structures such as a silane group, tert-butylphenyl and adamantane provide low surface energy to form a hydrophobic substrate, a multistage micro-nano coarse structure of the pretreated pollen provides a morphology basis for a super-hydrophobic surface, and after grafting treatment of hydrophobic groups of 1-adamantanol and hexamethylene diisocyanate, the hydrophobicity of the pretreated pollen is enhanced, so that the super-hydrophobic surface is formed. All the materials cooperate with one another to construct a'micro-nano binary structure 'similar to a lotus leaf, a super-hydrophobic surface is formed, pollutant attachment is reduced, and therefore the efficient anti-pollution self-cleaning effect is achieved.

The invention belongs to the technical field of nanofiltration membranes, and particularly relates to a thin-film composite nanofiltration membrane as well as a preparation method and application thereof. The composite nanofiltration membrane comprises a porous ultrafiltration supporting base membrane and a polyamide separation layer constructed on the porous ultrafiltration supporting base membrane, and the polyamide separation layer is obtained by polycondensation of a polyacyl chloride monomer and a polyamine monomer on the porous ultrafiltration supporting base membrane in the presence of an additive, the additive is tertiary amine based on an adamantane structure and a derivative thereof. Uniformly mixing a polyamine monomer, an additive and water to obtain a water-phase solution; uniformly mixing a multi-acyl chloride monomer with an alkane solvent to obtain an organic phase solution; the aqueous phase solution and the organic phase solution are sequentially applied to a porous ultrafiltration supporting base membrane, and the thin-film composite nanofiltration membrane is obtained through interfacial polymerization reaction and drying. The membrane composite nanofiltration membrane is thin and compact, has high water flux, high salt interception and monovalent and divalent anion separation performance, and can be used for low-cost and efficient desalination.

The invention relates to the technical field of oil fields, and discloses an acid liquor thickening agent and a preparation method thereof.The preparation method comprises the steps that 3, 4-dihydroxycinnamic acid, acrylamide, sodium alkenyl sulfonate modified boric acid and quaternized cardanol are added into water and mixed to be uniform, citric acid continues to be added to adjust the pH, nitrogen continues to be introduced, azodiisobutyronitrile, potassium persulfate and sodium pyrosulfite are added into the mixture, and the mixture is stirred to be uniform; and after the reaction, filtering and washing to obtain the acid liquor thickening agent. The acid liquor thickening agent contains adamantane and benzene ring rigid groups, so that the rigidity of the acid liquor thickening agent is improved, and the anti-shearing capability and the stability of the acid liquor thickening agent are also enhanced; the quaternary ammonium salt group and the sodium sulfonate group improve the temperature resistance and the shear resistance of the acid liquor thickening agent.

The invention relates to a low-temperature-resistant recycled PP plastic product and a preparation method thereof, and belongs to the technical field of high polymer materials. The PP plastic product is prepared from the following components in percentage by weight: 5.8 to 9.2 percent of low-temperature-resistant regenerant, 0.12 to 0.15 percent of nucleating agent, 1.1 to 1.7 percent of lubricant, 0.08 to 0.11 percent of antioxidant, 0.1 to 0.14 percent of light stabilizer and the balance of PP regenerant, adamantane and chain alkane in a molecular main chain of the low-temperature-resistant regenerant form local rigid steps, adamantane units serve as rigid islands to induce uniform crazes in a PP matrix, impact energy can be effectively absorbed in a low-temperature freezing state, short-chain branched alkyl grafted by side chains and PP molecular chains are deeply entangled to form molecular-level topological interlocking, craze convergence is effectively prevented, and the low-temperature-resistant regenerant has the advantages that the low-temperature-resistant regenerant is prepared; particularly in the freezing and thawing cycle stress process, destructive cracks are prevented from being generated, so that the product has stable low-temperature resistance.

The invention discloses a flame-retardant waterproof high-density fiberboard and application thereof, and belongs to the technical field of fiberboards, the flame-retardant waterproof high-density fiberboard is prepared from, by weight, 100-200 parts of wood fibers, 15-30 parts of adhesive and 1-3 parts of waterproof agent, the adhesive is prepared from 10-20 parts of modified urea resin, 5-10 parts of modified inorganic filler and 0.1-0.2 part of ammonium chloride, and the waterproof agent is prepared from 10-20 parts of modified urea resin, 5-10 parts of modified inorganic filler and 0.1-0.2 part of ammonium chloride. The modified inorganic filler is a polydopamine modified inorganic filler, and the modified urea-formaldehyde resin is a branched phenyl phosphorus polyol and 1, 3-adamantane diamine modified urea-formaldehyde resin. The flame-retardant waterproof high-density fiberboard is prepared by adding the adhesive composed of the modified inorganic filler and the modified urea-formaldehyde resin into the wood fiber, so that the interface bonding strength between the filler and the wood fiber is remarkably enhanced, the flame retardance and the water resistance of the fiberboard are improved, the formaldehyde emission of the fiberboard is reduced, and the flame-retardant waterproof high-density fiberboard is suitable for industrial production. The high-density fiberboard with waterproof and flame-retardant effects is prepared.

The present invention provides a novel copolymer useful in drug delivery technology. The present invention relates to a drug complex obtained by binding a target-specific molecule to a copolymer X comprising structural units represented by formulae (A), (B) and (C). [In the formula, R1, R2 and R3 may be the same or different and each represents a hydrogen atom or a C1-3 alkyl group; r4 represents a C1-3 alkyl group; r5 represents a hydrogen atom, a C1-18 alkyl group, a 3-to 8-membered cycloalkyl group which may have a substituent, an adamantyl group, a C6-18 aryl group which may have a substituent, or a 5-to 10-membered heteroaryl group which may have a substituent; x1, X2, and X3 may be the same or different and each represents an oxygen atom, a sulfur atom, or N-R7; r6 represents a hydrogen atom, a leaving group or a linking group; r7 represents a hydrogen atom or a C1-3 alkyl group; m represents an integer of 1 to 100; and n represents an integer of 0-3. ] # imgabs0 #

A luminescent probe and its preparation method and application are provided. The luminescent probe has a steric hindrance group R1 of aliphatic hydrocarbon structure such as adamantane or norborneol, a detection group R2 of nitrobenzyl and its derivative structure, an electron-withdrawing group R3 containing cyano group and an electron-donating group methoxy group. In the presence of HSA or BSA, the detection group is cut off to form a parent structure that exposes atomic oxygen anions and is activated under external light irradiation, the luminescent probe can be used in solution or cells, when detecting HSA or BSA, the luminescent probe has obvious chemiluminescence characteristics, which can sensitively distinguish HSA and BSA, quantitatively analyze HSA and BSA, and determine the mixing ratio of HSA and BSA at the same time, and the luminescent probe has been successfully used for cell fluorescence imaging.

The invention relates to the technical field of materials, and discloses a high-strength and high-hardness acrylic composite board which is prepared from methyl methacrylate, an initiator, a rectorite modified material and other raw materials through prepolymerization, mixing and curing. Wherein the rectorite modified material is prepared by forming a macromolecular polymeric substance which is connected by ether bonds and is alternately connected with polyethylene glycol and adamantane on the surface of rectorite, and the macromolecular polymeric substance can participate in the subsequent heating and curing process to realize crosslinking of polymethyl methacrylate; compared with the prior art, the preparation method has the advantages that the prepared acrylic plate is higher in structural density and further shows higher hardness, in addition, a macromolecular polymeric substance structure contains an adamantane rigid ring, so that the stability of an acrylic molecular chain can be improved, and the rectorite can also efficiently exert a self-reinforcing effect, so that the reinforcement of the plate is realized.

The invention discloses a resin composition which comprises the following components: (A) 100 parts by weight of polyphenyl ether resin containing unsaturated carbon-carbon double bonds, and (B) 20-70 parts by weight of a compound as shown in formula (1), in the formula (1), X is adamantyl, R1-R8 are respectively and independently hydrogen atoms or C1-C3 alkyl, at least one of R1-R8 is C1-C3 alkyl, and n is an integer of 1-7. In addition, the invention also discloses a product prepared from the resin composition. The article includes a prepreg, a resin film, a laminate or a printed circuit board, and can be improved in one or more aspects such as glass transition temperature, T300 heat resistance, Z-axis thermal expansion coefficient, dielectric loss, dielectric loss moisture-heat change rate, dielectric loss thermal change rate, water absorption, and moisture absorption heat resistance. # imgabs0 #

The invention discloses an Au7Cu10 nanocluster and a preparation method and application thereof.The preparation method comprises the following steps that chloroauric acid and cuprous chloride serve as a gold source and a copper source respectively and are dissolved and stirred in a solvent, 1-adamantanethiol is added, and the color of the solution is changed into dark green from yellow; continuously adding diphenyl-2-pyridine phosphine to enable the color of the solution to be changed from dark green to light orange, continuously adding a mixed solution of sodium borohydride and ice water, and isolating air to enable the color of the solution to be quickly changed into black; and centrifuging to remove a water phase, evaporating an organic phase, washing black precipitate, recrystallizing a crude product at low temperature, and culturing to obtain the Au7Cu10 nanocluster. The Au7Cu10 nanocluster disclosed by the invention shows excellent performance, so that the Au7Cu10 nanocluster has the potential of serving as molecular triplet energy and an electronic substitute in optoelectronics, photocatalysis and solar energy conversion.

The invention discloses long-acting high-dynamic hydrazone bond hydrogel as well as a preparation method and application thereof, and particularly relates to the technical field of biomedical materials. The preparation method comprises the following steps: taking 1-adamantane acetic acid and adipic dihydrazide modified sodium hyaluronate and benzaldehyde-terminated eight-arm polyethylene glycol as carrier raw materials; the hydrazone bond hydrogel with relatively high stability is prepared through a coupling reaction of an aldehyde group of benzaldehyde-terminated eight-arm polyethylene glycol and a hydrazide group of 1-adamantane acetic acid and adipic dihydrazide modified sodium hyaluronate. The beta-cyclodextrin modified m-phenylenediamine catalyst is dynamically combined into the carrier through reversible host-guest complexation between beta-cyclodextrin and 1-adamantane acetic acid, so that the long-acting high-dynamic hydrazone bond hydrogel is obtained, and the requirement of three-dimensional culture of stem cells on mechanical properties can be met; and network dynamics can be maintained for a long time, so that stem cell spreading is supported, mechanical signal transduction is activated, osteogenesis-related gene expression is promoted, and stem cell osteogenesis differentiation capability is enhanced.

The present invention provides a magnetic metal-polyphenol network material based on β-cyclodextrin and a preparation method and application thereof, belonging to the technical field of magnetic metal-polyphenol network material preparation method. The method obtains dopamine-derived cyclodextrin by substitution reaction; prepares magnetic nanoparticles by solvothermal method; 4+ The coordination between them forms a metal-polyphenol network on the surface of magnetic nanoparticles, i.e., the host; the reduced glutathione is modified on the adamantane to form the guest; finally, the host and the guest are mixed to obtain a magnetic metal-polyphenol network material based on β-CD; the present invention utilizes hydrophilic action to enrich glycosylated peptides, and utilizes Ti 4+ Phosphorylated peptides are enriched by coordination with phosphate ions; the paramagnetism of the internal Fe3O4 magnetic nanoparticles allows the enriched glycosylated peptides and phosphorylated peptides to be easily and quickly separated from biological samples with the assistance of external magnets, thereby improving the efficiency of the entire enrichment process.

The invention relates to a method for recycling a side reaction product in production of 3-amino-1-adamantanol, belonging to a technical method for recycling and utilizing a nitration side reaction product in a process of producing a medical intermediate 3-amino-1-adamantanol. In the neutralization-alkalization operation of nitration reaction mixed acid liquor in the production process of 3-amino-1-adamantanol, a segmented adjustment operation mode is adopted, a nitration reaction termination material is neutralized and adjusted to the optimal pH range of 5-7, and nitration side reaction products are separated out, separated and purified. And then carrying out pressurized (0.05-0.1 MPa) high-temperature (more than 100 DEG C) reaction on the separated nitration side reactant in a mixed water solution of strong inorganic alkali (sodium hydroxide or potassium hydroxide) and organic alkali (pyridine), so that the nitration side reactant is converted into 1, 3-adamantanediol. The target product 1, 3-adamantanediol is separated and collected through subsequent operations such as evaporation concentration, cooling crystallization, separation crystallization and the like.