103 results about "Siloxide" patented technology

The present invention relates to the technical field of coatings and discloses a method for preparing an EVA waterproof coating. Activated montmorillonite reacts with toluene diisocyanate to obtain isocyanate-modified montmorillonite. EVA is hydrolyzed under the catalysis of potassium hydroxide to obtain hydroxylated EVA. An epoxy trisiloxane intermediate reacts with terephthalic acid under ring-opening esterification with benzyltriethylammonium chloride to obtain p-hydroxytrisiloxane benzoate. P-hydroxytrisiloxane benzoate, hydroxylated EVA, and isocyanate-modified montmorillonite are cross-linked with toluene diisocyanate under the catalysis of stannous octoate, and a defoamer and a dispersant are added thereto and stirred uniformly to obtain an EVA waterproof coating. The EVA waterproof coating prepared by the present invention has good mechanical properties and waterproof properties.

The invention relates to a preparation method of a gallium ion-doped lithium lanthanum zirconium oxide solid electrolyte, and belongs to the field of solid electrolytes. The preparation method comprises the following steps: adding lithium carbonate, lanthanum oxide, zirconium oxide, gallium oxide, a Ga < 3 + >-hydrogen-based silsesquioxane chelating auxiliary agent and ethanol into a ball milling tank for ball milling, drying, and then putting into a muffle furnace for pre-sintering to obtain pre-sintered powder; putting the pre-sintered powder into the ball milling tank again for ball milling, and tabletting to obtain a green body; and placing the green body in a sintering furnace, and carrying out high-temperature sintering in an oxygen atmosphere to obtain the gallium ion-doped lithium lanthanum zirconium oxide solid electrolyte, the Ga < 3 + >-hydrogen-based silsesquioxane chelating auxiliary agent is prepared from gallium fluoride, lithium carbonate, hydrogen-based silsesquioxane, citric acid and deionized water; by doping gallium ions, the ionic conductivity can be remarkably improved; and after the lithium lanthanum zirconium oxide is placed in an air atmosphere for 30 days, the retention rate of ionic conductivity is greater than 97%, and the problem of poor stability of lithium lanthanum zirconium oxide is solved.

The present invention provides a dealcoholized silicone sealant with rapid initial curing and a preparation method thereof, comprising the following steps: dispersing a metal-organic framework (MIL-101), a silane coupling agent, and calcium carbonate in an organic solvent and reacting for 5 to 7 hours to obtain MIL-101@CaCO3; and mixing and dispersing α,ω-dihydroxy polydimethylsiloxane, alkoxy-terminated polydimethylsiloxane, MIL-101@CaCO3, a crosslinking agent, a coupling agent, and a catalyst to obtain the dealcoholized silicone sealant. The present invention significantly increases the migration rate of water vapor within the filler by modifying CaCO3 with the metal-organic framework (MIL-101). The diffusion coefficient of water vapor within the filler is 0.112 cm at 25°C and 30% relative humidity. 2 / s, and ensure the mechanical strength; on this basis, it is combined with alkoxy-terminated polydimethylsiloxane to further improve the curing rate, and the curing depth can reach more than 1mm in 6 hours.

The invention discloses snowflake cream with pearly luster and a preparation process of the snowflake cream. The snowflake cream comprises the following raw material components: a phase A: water; butanediol; glycerol; methyl glucitol polyether-20; a polyacrylate cross-linked polymer-6; sodium hyaluronate; potassium hydroxide (90%); 4-hydroxyacetophenone; xanthan gum; phase B: caprylic / capric triglyceride; cetostearyl alcohol; stearic acid; a polydimethylsiloxane; squalane; simmondsia chinensis seed oil; mineral oil; and polyethylene glycol (PEG)-100 stearate. Glyceryl stearate; tocopheryl acetate; isononyl isononanoate; a phase C: 1, 2-hexanediol; carnosine; a centella asiatica extract; collagen; the snowflake cream has the advantages of uniform pearly luster texture and the advantages of traditional snowflake cream.

The invention discloses a preparation method of a cresol trozole trisiloxane intermediate, and belongs to the technical field of fine chemical engineering. The preparation method comprises the following steps: by taking 2, 6-dibromo-4-methylphenol as a raw material, reacting with 3, 4-dihydropyran under the action of p-toluenesulfonic acid, so as to generate an intermediate 2-(2, 6-dibromo-4-methylphenoxy) pyran; reacting with sodium methoxide under the action of a catalyst to generate an intermediate 2-(2-bromo-4-methyl-6-methoxyphenoxy) pyran; then generating a Grignard reagent, carrying out coupling reaction on the Grignard reagent and 3-bromine-2-methallyl, finally reacting with benzotriazole lithium salt, and carrying out acidolysis deprotection to obtain the cresol trozole trisiloxane intermediate. The raw materials are available in the market, the overall yield is high, and a route reference is provided for synthesis of the compounds.

There has been a problem of low bonding strength in conventional insulating layers, i.e., SiO2. In addition, there is a problem of poor conduction of the electrode or a decrease in reliability of the obtained laminate due to a void generated when a minute foreign matter is sandwiched in the bonding interface. The invention provides a laminated body. A-1 in at least a portion of a first substrate including an exposed (A-1) metal electrode and an exposed (B-1) resin layer on the same surface of a substrate main body, and a second substrate including an exposed (A-2) metal electrode and an exposed (B-2) resin layer, or an exposed (A-2) metal electrode and an exposed (C) inorganic insulating layer on the same surface of the substrate main body the metal electrode and the (A-2) metal electrode and at least a portion of the (B-1) resin layer and the (B-2) resin layer, or at least a portion of the (A-1) metal electrode and the (A-2) metal electrode and at least a portion of the (B-1) resin layer and (C) an inorganic insulating layer are bonded together directly, respectively; at least one of the (B-1) resin layer and the (B-2) resin layer contains one or more resins selected from the group consisting of a carbonyl group, a hydroxyl group, an alkylene oxide group, a group having a siloxane bond, and a nitrogen-containing heterocyclic ring.

The application discloses a supported chiral phosphine heterogeneous catalyst and a preparation method and application thereof, and relates to the technical field of heterogeneous catalyst preparation. The method comprises the following steps: mixing hollow mesoporous polystyrene nanospheres, chiral phosphine and DCE, stirring, adding FDA, stirring, adding concentrated sulfuric acid dropwise, and reacting to obtain a reactant one; and mixing the reactant one, toluene, tetramethyldisiloxane and tetraisopropyl titanate, and reacting under temperature rise to obtain the supported chiral phosphine heterogeneous catalyst. The application is simple and convenient in a one-pot method, and can efficiently anchor the chiral phosphine and its oxide catalyst to the carrier. The application solves the problems of complicated modification in the existing organic catalyst immobilization process and mass transfer limitation of the prepared catalyst.

The invention relates to the technical field of organic silicon materials, in particular to a synthesis method of high-purity methylsiloxane. Comprising the following steps: mixing a methyl chlorosilane monomer with deionized water according to a molar ratio of 1: (3-5), adding a metal oxide catalyst, and carrying out a hydrolysis reaction under the protection of inert gas; controlling the temperature by stages after the hydrolysis reaction: stirring and reacting for 1-2 hours at 60-80 DEG C in the first stage, heating to 90-110 DEG C and reducing the pressure to 0.05-0.1 MPa in the second stage, and continuously reacting for 0.5-1 hour; and after the reaction is finished, purifying through reduced pressure distillation, molecular sieve adsorption and membrane filtration in sequence to obtain the methylsiloxane with the purity of more than or equal to 99.8%. The invention provides a synthetic method with high-efficiency catalysis, precise temperature control and deep purification, so that the bottleneck of the prior art is broken through, and the purity of methylsiloxane is greatly improved.

The application relates to the technical field of fine chemical synthesis, and discloses a PDI catalyst for preparing cresol trisiloxane, a preparation method and a preparation method of cresol trisiloxane. Me PDI)FeBr2, sodium and nai are dissolved in an ultradry solvent, and the reaction is stirred under a nitrogen atmosphere; the reaction product is post-treated to obtain a PDI catalyst; 2-(2'-hydroxy-3'-methylethenyl-5'-methylphenyl) benzotriazole and the PDI catalyst are dissolved in an organic solvent, the temperature is increased to 50-60 DEG C, bistrimethylsiloxy methylsilane is added dropwise, and the reaction is preserved for 6-10 h; the organic solvent is removed by concentration under reduced pressure, and crystallization is carried out to obtain cresol trisiloxane. The iron complex catalyst is used to replace the traditional platinum catalyst, the material cost is reduced, the risk of heavy metal residue can be avoided, a small amount of the iron complex catalyst can be used, and higher catalytic activity and selectivity can be realized.

The application provides a method for preparing methyl phenyl silicone oil by one-pot method, comprising: S100, carrying out hydrolysis reaction of phenyl dialkoxysilane selected from methyl phenyl dimethoxysilane and diphenyl dimethoxysilane and a chain extender selected from dimethyl cyclosiloxane and alpha, omega-dihydroxypolydimethylsiloxane in the presence of water and a first catalyst at a temperature of 40-90 DEG C, and carrying out first low boiling point removal treatment; S200, adding a second catalyst and reacting at 70-160 DEG C; S300, carrying out second low boiling point removal treatment to obtain methyl phenyl silicone oil; wherein the first catalyst and the second catalyst are each independently selected from tetramethyl ammonium hydroxide silanol salt and potassium hydroxide silanol salt; and the method further comprises: adding an end-capping agent before the hydrolysis reaction in step S100 or before adding the second catalyst in step S200.

This invention discloses a synthetic process for an empagliflozin intermediate, belonging to the technical field of pharmaceutical intermediate synthesis. The synthetic process is as follows: 2-chloro-5-bromobenzoic acid is first mixed with dichloromethane and N,N-dimethylformamide, and thionyl chloride is added dropwise to obtain a dichloromethane solution of acyl chloride. Then, it is reacted with fluorobenzene under anhydrous aluminum trichloride catalysis to obtain intermediate EGAB-3. Then, it is dehydrated by azeotropic reaction with potassium hydroxide aqueous solution in toluene, and then refluxed with 3-hydroxytetrahydrofuran under tetrabutylammonium bromide catalysis to obtain intermediate EGAB-7. Then, it is reacted with 1,1,3,3-tetramethyldisiloxane under anhydrous aluminum trichloride and nitrogen protection, dried, and tested to be qualified to obtain empagliflozin intermediate. This process achieves high purity, high yield, and low isomer impurities in the preparation of empagliflozin intermediate.

The application relates to a deburring method for a micro-aperture cross-hole of a semiconductor equipment precision component. The method comprises the following steps: deburring liquid: uniformly mixing cage polysilsesquioxane-octakis-epoxy nano silicon dioxide dispersion, phenylboronic acid, octakis octyl cage polysilsesquioxane, an activated dispersant and a first solvent to obtain a first mixed liquid; dissolving an organic acid in a second solvent to obtain a second mixed liquid, adding the second mixed liquid into the first mixed liquid, adjusting the PH value to 3-5 to obtain an environment-friendly deburring liquid; capillary removal: removing the burrs inside the hole of the semiconductor equipment precision component by using the heated deburring liquid, and then performing flushing to obtain the precision component with the removed burrs and the recycled deburring liquid. The above scheme realizes the triple effects of "grinding-dissolving-protection", improves the burr removal effect of the micro-aperture cross-hole of the semiconductor equipment precision component, and can maintain good removal effect for long-term repeated use and heating.

This invention discloses a method for preparing a 3D-printed impact-resistant elastic conductor material. Silver particles / silver nanosheets are used as the conductive phase, and polyboron dimethylsiloxane (PBMS) is used as the impact-resistant material. The addition of a polyhydroxyl-based low-boiling-point solvent reversibly adjusts the density of the dynamic B-O crosslinking bonds within PBMS and reversibly increases the number of silanol groups, thereby increasing the hydrogen bond density and enhancing the printability of PBS without affecting its shock-absorbing effect. This invention utilizes the reversible reaction principle between the polyhydroxyl-based low-boiling-point solvent and the dynamic B-O crosslinking bonds to control the decrease and recovery of B-O density. Simultaneously, due to the percolation effect of silver powder particles / silver sheets, the Ag / PBS impact-resistant elastic conductor exhibits excellent conductivity. After vacuum drying of the polyhydroxyl-based low-boiling-point solvent in the printed pattern, the density of the dynamic B-O crosslinking bonds is restored, and the Ag / PBS impact-resistant elastic conductor regains its good shear thickening effect, conductivity, sensing performance, and self-healing properties.

The invention relates to a clean production process for co-producing diacetylmonoxime and acetaldehyde oxime. The method comprises the following steps: adding a modified catalyst, solvent water and butanone into a reaction kettle, starting to stir and heat under the protection of nitrogen, slowly introducing ammonia gas, then slowly adding a hydrogen peroxide aqueous solution, and after the reaction is finished, carrying out centrifugal separation to obtain diacetylmonoxime; the preparation method comprises the following steps: adding hydroxylamine hydrochloride and water into a reaction kettle, stirring to dissolve the hydroxylamine hydrochloride and the water, dropwise adding acetaldehyde under cooling of an ice-water bath, and reacting; dropwise adding alkali liquor, and stirring to obtain an acetaldehyde oxime water solution; the method comprises the following steps: extracting an acetaldoxime aqueous solution with dichloromethane, drying an extract liquid with anhydrous sodium sulfate, fractionating at normal pressure to obtain most of a solvent, fractionating at reduced pressure, and collecting fractions to obtain anhydrous acetaldoxime; the modified catalyst disclosed by the invention is obtained by reacting a TS-1 molecular sieve, mercapto siloxane, (E)-1-allyl potassium trifluoroborate, allyl trimethyl stannane, methylbenzene and sodium ethoxide; the diacetylmonoxime and acetaldehyde oxime prepared by the invention have higher purity.

This invention relates to a catalytic membrane for HCl oxidation reaction, the preparation method of which includes: Step 1: reacting silica particles with SiO2. ­2 A mixture of ZrO2 sol and silica gel is coated onto a hollow fiber carrier and calcined to obtain a transition layer for the membrane. Step two: A silsesquioxane sol is applied to the transition layer obtained in step one and calcined to obtain a silica membrane. Step three: The silica membrane obtained in step two is subjected to impurity removal treatment. Step four: A solution of silane coupling agent (A) and a metal salt solution (B) are prepared separately and mixed to obtain solution C. The silica membrane treated in step three is immersed in solution C and grafted with nano-metal particles using ultrasonic assistance, followed by a high-temperature reaction to obtain a catalytic membrane. The catalytic membrane designed in this invention, when applied to the HCl oxidation reaction, can separate reactants and products simultaneously, causing the reaction to shift forward, increasing the reaction conversion rate, reducing the reaction temperature, and extending the catalyst lifetime.

The invention relates to the technical field of cables, in particular to a preparation process of a high-flame-retardance cable. According to the process, low-density polyethylene and an ethylene-vinyl acetate copolymer are adopted as matrixes, silane is grafted through twin-screw extrusion, then nano-composite flame retardants based on magnesium-aluminum layered double hydroxides, phosphine compounds, polyhedral oligomeric silsesquioxane and the like are introduced, and a proper amount of magnesium hydroxide, aluminum hydroxide and zinc borate are added for synergistic flame retardance and smoke suppression. The nano-composite flame retardant is subjected to multiple surface modification and function synergy, so that the interface bonding and dispersity can be remarkably improved, a compact carbonized and ceramic layer is formed, and low-smoke, low-combustion-spread and stable low-dielectric properties are realized.

The invention provides a method for preparing aerogel powder from waste gel, and belongs to the technical field of aerogel material preparation. The method comprises the following steps: by taking waste wet gel generated when an aerogel product is produced from an organic silicon source as a raw material, adding an ammonium fluoride solution, stirring and uniformly mixing, adding hexamethyldisiloxane, n-butyl alcohol and hydrochloric acid for modification, cooling and standing after modification, and separating out an upper-layer gel solution; stirring and cleaning with pure water, standing to obtain washing water, adding a sodium hydroxide aqueous solution, stirring and cleaning, and standing to obtain alkali washing water; and drying through closed-loop spray drying equipment to obtain the aerogel powder. According to the method, resource utilization of the waste gel is achieved, the production cost of the aerogel powder is reduced, environmental pollution is reduced, and the obtained aerogel powder has good hydrophobicity and heat insulation performance.

Disclosed are techniques for delaying initiation of coagulation and suppressing fibrin formation. The disclosed techniques may include providing a percutaneous blood pump that may include a metal or ceramic surface (such as a surface of a shaft, bearing, rotor, stator, etc.) that has been modified with a bifunctional modifier. The modified surface may be within a motor section and / or pump section of the blood pump. The modified surface may be configured to interact with blood. When blood is allowed to interact with the modified surface, a desirable microenvironment may be formed. The bifunctional modifier may be a functionalized aminosilane, a functionalized aminosiloxane, and / or a functionalized silanetriol. The blood pump may be configured to have a purge fluid pass through at least a portion of the motor section and / or the pump section. The purge fluid may be free of anticoagulants.

The application provides a sealant and a preparation method and application thereof. The sealant comprises the following components in parts by weight: 100 parts of alpha, omega-dihydroxypolydimethylsiloxane, 2.5-6.5 parts of a plasticizer, 80-100 parts of a filler, 8-15 parts of a crosslinking agent, 1.5-2 parts of a coupling agent and 0.1-0.2 parts of a catalyst, wherein the coupling agent is a reactant of an amino silane coupling agent and a hydroxyl-terminated polybutadiene. The amino silane coupling agent is chemically modified by using the hydroxyl-terminated polybutadiene, so that the adhesion and the moisture and heat resistance of the sealant can be significantly improved.

Disclosed are techniques for delaying initiation of coagulation and suppressing fibrin formation. The disclosed techniques may include providing a percutaneous blood pump that may include a metal or ceramic surface (such as a surface of a shaft, bearing, rotor, stator, etc.) that has been modified with a bifunctional modifier. The modified surface may be within a motor section and / or pump section of the blood pump. The modified surface may be configured to interact with blood. When blood is allowed to interact with the modified surface, a desirable microenvironment may be formed. The bifunctional modifier may be a functionalized aminosilane, a functionalized aminosiloxane, and / or a functionalized silanetriol. The blood pump may be configured to have a purge fluid pass through at least a portion of the motor section and / or the pump section. The purge fluid may be free of anticoagulants.

The invention relates to the technical field of coatings, and discloses a preparation method of an EVA (Ethylene Vinyl Acetate) waterproof coating, which comprises the following steps: reacting activated montmorillonite with toluene diisocynate to obtain isocyanate modified montmorillonite; eVA is hydrolyzed under the catalysis of potassium hydroxide to obtain hydroxylated EVA; and reacting the epoxy trisiloxane intermediate with terephthalic acid under ring-opening esterification of benzyltriethylammonium chloride to obtain the p-hydroxytrisiloxane benzoate. 4-hydroxytrisiloxane benzoate, hydroxylated EVA and isocyanate modified montmorillonite are subjected to a cross-linking reaction with toluene diisocynate under the catalysis of stannous octoate, then a defoaming agent and a dispersing agent are added into the mixture, the mixture is stirred to be uniform, and the EVA waterproof coating is obtained. The EVA waterproof coating prepared by the preparation method disclosed by the invention has relatively good mechanical property and waterproof property.

The present application relates to the technical field of silsesquioxane preparation, in particular to a preparation method of heptaphenyl trihydroxysilsesquioxane; specifically, heptaphenyl trisodium silsesquioxane is prepared by reacting phenyl trimethoxysilane and sodium hydroxide in an organic solvent medium, then tin-doped solid acid catalyst and heptaphenyl trisodium silsesquioxane are added in a tetrahydrofuran medium, and heptaphenyl trihydroxysilsesquioxane is prepared in an ice water bath. The heptaphenyl trihydroxysilsesquioxane prepared by the method has high yield, and the service life of the solid acid catalyst is long, and the solid acid catalyst can be recycled.

The invention relates to a method for producing butanone oxime with high selectivity. The method comprises the following steps: the raw materials are a catalyst, a solvent, butanone, aqueous ammonia and aqueous hydrogen peroxide solution, and the butanone oxime is obtained through ammoximation reaction, distillation of tert-butyl alcohol, separation of oxime water and distillation of butanone oxime; the catalyst is a boron nickel doped titanium silicate, which is mixed with titanium silicate, mercaptosiloxane and ethanol, filtered and dried to obtain the mercapto titanium silicate; the mercapto titanium silicate, allyl (cyclopentadienyl) nickel and sodium ethoxide are subjected to a temperature reaction; and finally (+)-IPC2B (allyl) borane is added, the reaction is continued and the ethanol is removed by distillation to obtain the butanone oxime; the butanone oxime prepared by the method has high conversion rate and selectivity.

The invention belongs to the technical field of organic synthesis, and particularly discloses a preparation method and application of pentaphenyl trimethyl trisiloxane, and the preparation method comprises the following steps: (1) adding methyl phenyl dichlorosilane, methyl diphenyl chlorosilane and sodium hydroxide into a solvent, and reacting to obtain a precursor solution; and (2) adding a catalyst into the precursor solution, carrying out condensation reaction, and carrying out reduced pressure distillation to obtain the pentaphenyl trimethyl trisiloxane. According to the method, methyl phenyl dichlorosilane, methyl diphenyl chlorosilane and sodium hydroxide are subjected to a hydrolysis reaction in a solvent, and then low-temperature condensation is carried out under the action of a catalyst, so that by adopting the method, side reactions can be effectively reduced, the reaction efficiency and purity are improved, and the yield is increased. The pentaphenyl trimethyl trisiloxane with excellent thermal stability, oxidation resistance, surface activity and adhesive force is obtained, can be used in the fields of surface modifiers, lubricating oil additives, coatings, printing ink auxiliaries and cosmetics, and has wide application prospects.

Disclosed are techniques for delaying initiation of coagulation and suppressing fibrin formation. The disclosed techniques may include providing a percutaneous blood pump that may include a metal or ceramic surface (such as a surface of a shaft, bearing, rotor, stator, etc.) that has been modified with a bifunctional modifier. The modified surface may be within a motor section and / or pump section of the blood pump. The modified surface may be configured to interact with blood. When blood is allowed to interact with the modified surface, a desirable microenvironment may be formed. The bifunctional modifier may be a functionalized aminosilane, a functionalized aminosiloxane, and / or a functionalized silanetriol. The blood pump may be configured to have a purge fluid pass through at least a portion of the motor section and / or the pump section. The purge fluid may be free of anticoagulants.

The application belongs to the technical field of compound preparation, and particularly relates to a preparation method of an alkali metal salt of an oxalate chelate structure, at least comprising the following steps: mixing tris(trimethylsilyl) phosphate, an oxalate and a phosphorus-containing or boron-containing fluorine compound in a first organic solvent, stirring and heating to obtain lithium phosphate, trimethyl fluorosilane gas, and difluorobisoxalate phosphate or difluorooxalate borate, filtering the reaction solution to obtain lithium phosphate solid and a difluorobisoxalate phosphate solution or a difluorooxalate borate solution; adding a second organic solvent for recrystallization after concentration; and obtaining difluorobisoxalate phosphate or difluorooxalate borate solid after filtration, and drying the solid under reduced pressure to obtain a finished product. The process is simple, and the cost is low. By-products lithium phosphate, potassium fluoride and hexamethyldisiloxane can be directly sold as products after purification. Therefore, the application has an atomic utilization rate close to 100%, no invalid waste, less three-waste emissions, and is friendly to the environment.

This application discloses a softener for use in conjunction with a waterproofing agent, its preparation method, and its application. The preparation method includes the following steps: S1: reacting a double-ended hydrogen-containing silicone oil with a long-chain carbide under the action of an inert gas and a catalyst to prepare a first intermediate; S2: reacting the first intermediate, octamethylcyclotetrasiloxane, 3-methacryloyloxypropylmethyldimethoxysilane, and 3-(2,3-epoxypropoxy)propylmethyldimethoxysilane to prepare a second intermediate; S3: reacting the second intermediate with an organic diamine to prepare the softener for use in conjunction with the waterproofing agent. The softener of this application, used in conjunction with a waterproofing agent, can maintain good waterproofing while improving fabric softness.

Disclosed are a wet coating agent for a vehicle with which the surface of a vehicle is conveniently coated by being sprayed onto the vehicle and being rinsed with high-pressure water, and a method for preparing the same. The wet coating agent for a vehicle contains decamethylcyclopentasiloxane, purified water, an alcohol-based nonionic surfactant, amodimethicone oil, and a fluorinated silane.

Provided is a degradable crosslinking agent having high solubility in a solvent. The present invention relates to a decomposable cross-linking agent comprising a compound represented by formula (1). In formula (1), n > = 0, k > = 0, m > = 0, p1 > = 1, p2 > = 1, and p3 > = 1. R1, R2, and R3 independently represent a single bond, or a C1-500 hydrocarbon having or not having a substituent or a heteroatom. Q1, Q2, and Q3 are each independently selected from the group consisting of a hydroxyl group, an amino group, a thiol group, a hydrazide group, a carboxylic acid group, an anhydride group, a vinyl group, an allyl group, an acrylate group, a methacrylate group, a crotonate group, an isoprene group, an acrylamide group, a methacrylamide group, a crotonamido group, an epoxy group, an oxetanyl group, an oxazoline group, an isocyanate group, a carbodiimide group, and a hydroxymethyl group; and one or more reactive functional groups selected from the group consisting of a silanol group, a hydroxysilyl group, and an alkoxysilyl group. X1a, X1b, X2a, X2b, X3a, X3b, X4a, and X4b are each independently an oxygen atom, a sulfur atom, a single bond, a hydrocarbon group having 1-20 carbon atoms and having or not having a substituent, or-Nb-(B is a hydrogen atom or a hydrocarbon group), and one or more of X1a, X1b, X2a, X2b, X3a, X3b, X4a, and X4b are an oxygen atom, a sulfur atom, or-Nb-(B is a hydrogen atom or a hydrocarbon group). A1-A8 are carbonyl groups or single bonds, at least one of A1 and A2 is a carbonyl group, at least one of A3 and A4 is a carbonyl group, at least one of A5 and A6 is a carbonyl group, and at least one of A7 and A8 is a carbonyl group. Z independently represent a divalent or higher group including a siloxane structure, or a C1-500 hydrocarbon group having or not having a heteroatom. [Chemical Formula 1]