132 results about "Dimethacrylate ester" patented technology

The invention relates to the technical field of optical protective materials, in particular to an anti-dazzle full-ultraviolet-proof optical protective material and a preparation method thereof.The anti-dazzle full-ultraviolet-proof optical protective material is formed by sequentially compounding a scratch-resistant hardened layer, a PET film layer a, a composite adhesive layer, a PET film layer b, an installation adhesive layer and a PET release film layer from top to bottom; the preparation method comprises the following steps: mixing organic silicon modified polyurethane acrylate, a pigment, a reactive diluent, a flatting agent, a photoinitiator, a solvent and modified nano silicon dioxide to prepare a photocurable scratch-resistant hardening coating liquid; in order to endow the optical material with excellent infrared barrier property and heat insulation property, cesium tungsten bronze is introduced into a composite adhesive layer as a filler, and in order to improve the adhesive power and water resistance of a composite adhesive solution, epoxy resin is taken as a base material, organic silicon modified polyurethane acrylate is introduced as a water-resistant component, acrylic acid is taken as tackifying resin, and a curing agent is taken as a curing agent. And bisphenol A ethoxylate dimethacrylate is used as a diluent.

The invention relates to a method for extracting high-purity astragalus polysaccharide. The method comprises the following specific steps: washing astragalus, drying and crushing into coarse powder; under a certain solid-liquid ratio, extracting astragalus polysaccharide by using ultrasonic waves; carrying out mixed enzymolysis on the extracting solution and cellulase, and terminating enzyme reaction through heating; and mixing the enzymatic hydrolysate with specific molecularly imprinted polymers (MIPs), specifically adsorbing the astragalus polysaccharide through a molecular recognition effect, and eluting and purifying by using a mixed solution of water and ethanol. In the preparation process of the MIPs, oligosaccharide fragments of astragalus polysaccharide, acrylamide, ethylene glycol dimethacrylate, potassium persulfate and lauryl sodium sulfate are dissolved in methanol, and free radical polymerization reaction is carried out under the protection of nitrogen. Experimental results show that the purity and the extraction rate of the astragalus polysaccharide extracted by the method are remarkably improved, and the method has the advantages of simplicity and convenience in operation, high efficiency, economy, environmental protection and the like.

The invention relates to the technical field of lithium adsorbents, in particular to a preparation and application method of a porous microsphere adsorbent for extracting lithium, and the preparation method comprises the following steps: preparing a water phase solution containing methacrylic acid, water and an emulsifier; the preparation method comprises the following steps: preparing an oil phase solution containing a fluorinated methacrylate monomer containing beta-diketone, cyclohexyl methacrylate, methoxyethyl methacrylate, N, N-bis (acryloyl) cystamine, ethylene glycol dimethacrylate, azodiisobutyronitrile and a solvent; dropwise adding the oil-phase solution into the water-phase solution for gradient emulsification, adding sodium persulfate to initiate polymerization, and performing centrifugal drying to obtain porous microspheres; and immersing the porous microspheres into a NaOH solution for hydrolysis activation, and drying to obtain the porous microsphere adsorbent for selective adsorption of lithium ions. Wherein the beta-diketone can enhance the targeted adsorption effect of the adsorbent on lithium ions and has relatively high selectivity and adsorption capacity, and the strong electron-withdrawing property of CF3 further polarizes carbonyl and enhances the coordination ability of the lithium ions.

The invention relates to a preparation method of semi-raspberry-shaped Janus particles, preparation of carbon dot modified semi-raspberry-shaped Janus particles and application of the particles in fluorescence detection.According to the preparation method of the semi-raspberry-shaped Janus particles, polystyrene is used as a seed, glycidyl methacrylate (GMA) is used as a monomer, ethylene glycol dimethacrylate (EDMA) is used as a cross-linking agent, and the carbon dot modified semi-raspberry-shaped Janus particles are prepared. The semi-raspberry-shaped Janus particles with morphology and chemical anisotropy are prepared through a photo-initiation seed swelling method. The invention also provides a method for preparing a chiral carbon dot by taking citric acid and S-1, 1 '-co-2-naphthylamine / R-1, 1'-co-2-naphthylamine as precursors through a hydrothermal method, and grafting the chiral carbon dot onto the half raspberry-shaped Janus particle to obtain the half raspberry-shaped Janus particle modified by the chiral carbon dot. And finally, realizing fluorescence detection of the L-lysine by the chiral carbon dot modified semi-raspberry-shaped Janus particles by using a fluorescence spectrophotometric method.

A photocurable composition comprising 20-80 wt% urethane (meth)acrylate oligomer, 15-70 wt% acrylamide monomer, such as N-acryloyl morpholine or N,N-diethyl acrylamide, and 5-60 wt% (meth)acrylate mon

The invention provides an interface-stable and anti-fatigue Janus conductive hydrogel, a preparation method and sensing application, and the preparation method comprises the following steps: uniformly mixing acrylic acid, ethylene glycol dimethacrylate, a photoinitiator, ferric chloride hexahydrate and deionized water to obtain a support layer precursor solution; mixing acrylic acid, lauryl methacrylate, N, N '-methylene bisacrylamide and the nanocellulose suspension, performing ultrasonic treatment to obtain a Pickering emulsion, adding a photoinitiator into the Pickering emulsion, and uniformly mixing to obtain an adhesion layer precursor solution; and pouring the support layer precursor solution into a mold, then slowly pouring the adhesion layer precursor solution onto the support layer precursor solution, carrying out ultraviolet curing, taking out from the mold, and cleaning to obtain the Janus conductive hydrogel. According to the method, the Pickering emulsion phase separation and the charge shielding effect are combined through a simple and convenient one-step method, and the problems that a traditional multi-layer assembly process is complex in operation and unstable in interface are effectively solved.

A resin composition for optical fiber coating contains a photopolymerizable compound and a photopolymerization initiator, in which the photopolymerizable compound contains a di(meth)acrylate having an oxypropylene group and a di(meth)acrylate having an oxyethylene group, and a mass ratio of a content of the oxypropylene group with respect to a content of the oxyethylene group in the photopolymerizable compound is 0.01 or more and 2.00 or less.

The invention discloses a surfactant with a branched structure as well as a preparation method and application of the surfactant. The preparation method comprises the following steps: carrying out Michael addition reaction on an amphiphilic branched polymer and polyfluorinated organic amine in an organic solvent in the presence of a catalyst to obtain the surfactant with the branched structure, the amphiphilic branched polymer has a hydrophilic chain segment and a hydrophobic chain segment, and the tail end of a branched molecular chain has double bonds. The amphiphilic branched polymer is obtained by copolymerization of polyethylene glycol di (methyl) acrylate and polypropylene glycol di (methyl) acrylate through active free radicals, or is prepared by Michael addition polymerization of a di (methyl) acrylate compound and a dimercapto compound or a diamine compound in an organic solvent in the presence of a catalyst. The surfactant can quickly reduce the surface tension and prolong the retention time of pesticide liquid, and is green, environment-friendly and degradable.

The invention discloses a semi-solid electrolyte for a lithium metal battery and a preparation method of the semi-solid electrolyte, and the semi-solid electrolyte is prepared by taking polyvinylidene fluoride-hexafluoropropylene (PVDF-HFP) as a matrix, ethylene glycol dimethacrylate (EGDMA) as a monomer, N-isopropylacrylamide (NIPAM) as a cross-linking agent and azodiisobutyronitrile (AIBN) as an initiator through heating in an in-situ polymerization mode to initiate thermal polymerization. The material with good thermal stability, high-temperature working applicability and cycle reversibility is obtained, the material serves as a semi-solid electrolyte of a lithium metal battery, and under the conditions that the high temperature is 60 DEG C and the current density is 1C, a battery with lithium iron phosphate as a positive electrode circulates for 400 circles and keeps 90% of capacity; under the condition that the high temperature is 60 DEG C and the current density is 1C, the battery taking the lithium cobalt oxide as the positive electrode can circulate for 550 circles. The preparation method is simple, can be suitable for working at high temperature, and is suitable for batch production.

A method of producing a polymer, including a step of subjecting a monomer mixture to radical polymerization, the monomer mixture including a cyclocarbonate group-containing (meth)acrylate monomer (A) represented by the following formula (1) and di(meth)acrylate monomer (B) represented by the following formula (2), wherein a content of the di(meth)acrylate monomer (B) is 3 weight % or lower with respect to a total of a content of the monomer (A) and the content of the monomer (B),wherein R1 represents hydrogen atom or methyl group, R2 represents an alkyl group having a number of carbons of 2 to 10, and X is 0 or 1,wherein R3 represents hydrogen atom or methyl group, R4 represents an alkyl group having a number of carbons of 2 to 10, and X is 0 or 1.

The present disclosure can provide: a resin composition for optical fiber connection, wherein the resin composition can form a connection part that exhibits an excellent adhesiveness and toughness; and an optical fiber ribbon having a connection part formed using this resin composition.　The resin composition for optical fiber connection comprises: photopolymerizable compounds comprising a monofunctional (meth)acryloyl compound (A) and a difunctional (meth)acryloyl compound (B); and a photopolymerization initiator. The (meth)acryloyl compound (B) comprises: an epoxy di(meth)acrylate having a bisphenol A skeleton; and an ethylene oxide-modified di(meth)acrylate in which the number of ethylene oxide groups is at least 6 and not more than 28.

The invention discloses a synthesis method and application of a beta-cyclodextrin aluminum citrate ion imprinting material, and the synthesis method comprises the following steps: S1, pouring beta-cyclodextrin, citric acid and monopotassium phosphate into a bottle filled with a deionized water solution, uniformly mixing, and carrying out water bath heating reaction to synthesize a beta-cyclodextrin / citric acid precursor; s2, sequentially pouring aluminum sulfate octadecahydrate, ethylene glycol dimethacrylate and ammonium persulfate into a bottle, and performing water bath heating reaction to synthesize a crude product of a beta-cyclodextrin / aluminum citrate ionic polymer; s3, drying the crude product in the bottle; s4, washing the crude product with deionized water, filtering and drying, and grinding and modifying with ethanol; and S5, soaking in a sodium hydroxide solution, washing with deionized water until the pH value is neutral, and drying to obtain the beta-cyclodextrin / aluminum citrate ion imprinted material. The synthesis process and process are simple, and the beta-cyclodextrin is simple in source and low in cost. The mechanical strength and the acid resistance of the prepared product are greatly improved, and the prepared product has the characteristics of proper strength, stable adsorption under an acidic condition and the like.

The present application relates to the technical field of acrylic adhesive, in particular to a SCF assembly buffer adhesive film and a preparation method thereof.The present application comprises an acrylic buffer layer and a bonding force improvement layer prepared from two modified acrylic resins, wherein the acrylic buffer layer comprises solvent, methyl acrylate, isooctyl acrylate, butyl acrylate, hydroxyethyl acrylate, azobisdimethylvaleronitrile, alpha-methyl styrene dimer, ethylene glycol dimethacrylate and 2,2-dimethoxybutane; the bonding force improvement layer comprises solvent, isooctyl acrylate, hydroxybutyl acrylate, glycidyl methacrylate, N-(isobutoxy) methacrylamide and azobisdimethylvaleronitrile; the pure adhesive film structure used in the present application can achieve the premise of the foam cushioning performance, has superior flatness, solves the poor adhesion of the foam due to the foaming process factors, and solves the poor orange peel of the display appearance.

The invention relates to the field of postoperative adhesion medicines, in particular to zwitter-ion nanogel, a preparation method thereof and application of the zwitter-ion nanogel in preparation of postoperative adhesion medicines and secondary adhesion medicines. The preparation method of the zwitterionic nanogel comprises the following steps: preparing a polymer which is a zwitterionic monomer; a nano silicate; the crosslinking agent is ethylene glycol dimethacrylate, the catalyst is tetramethylethylenediamine, and the photoinitiator is 2-hydroxy-2-methyl-1-[4-(2-hydroxyethoxy) phenyl]-1-acetone. According to the preparation method of the zwitterionic nanogel, synthesis is simple, and the nanogel prepared through the method has excellent biological activity and mechanical performance and has excellent anti-adhesion capacity. Compared with commercial anti-adhesion hydrogel, the zwitterionic nanogel prepared by the invention can safely and reliably prevent postoperative adhesion and secondary adhesion, and has great clinical potential.

The invention discloses a continuous preparation method of ethylene glycol dimethacrylate, and aims to provide a continuous preparation method of ethylene glycol dimethacrylate, which is high in reaction rate and high in product yield, and is characterized in that methacrylic acid and ethylene glycol are used as raw materials, and continuous production is realized through reactive distillation; the technical scheme comprises the following steps; the method comprises the following steps: 1, filling a reactive distillation tower with a filler, putting methacrylic acid, ethylene glycol, a polymerization inhibitor and sodium hydrogen sulfate into a feeding tank, and uniformly stirring to obtain a reaction raw material; 2, turning on a main power supply, starting a reaction control system, starting a cyclic heating device, and controlling the temperature of the rectifying column to be 100-120 DEG C; starting a circulating condensing device, and controlling the temperature of condensed water to be 0-10 DEG C; 3, starting a peristaltic pump to pump the reaction raw materials in the feeding tank into the reaction rectifying tower, starting an air pump to introduce air, collecting condensate water at the top of the rectifying tower at the beginning of reaction, and obtaining a crude ethylene glycol dimethacrylate product at the bottom of the rectifying tower; and 4, timely transferring water and methacrylic acid collected at the tower top to a tower top liquid storage tank through a pipeline, and timely transferring an ethylene glycol dimethacrylate crude product collected at a tower kettle to an ethylene glycol dimethacrylate crude product storage tank through a pipeline.

The present invention relates to the field of microscopy, preferably the field of electron microscopy. In particular, the present invention relates to an embedding agent for imaging a biological sample by microscopy, comprising: 60% to 99% by weight of a diol dimethacrylate selected from alkylene glycol dimethacrylate and / or oligo(alkylene glycol) dimethacrylate; 0% to 38% by weight of a polyalkylene glycol diacrylate or polyalkylene glycol methacrylate; the polyalkylene glycol diacrylate or polyalkylene glycol methacrylate is optionally substituted with at least one hydrophilic group, such as a hydroxyl, amino or carbonyl group; at least one additive, preferably comprising at least one heavy metal salt or lanthanide salt; and 0.1% to 2% by weight of a free radical polymerization initiator. The present invention also relates to a conductive material obtained by polymerizing the embedding agent of the present invention, and a preparation method and a kit thereof; the material embedding at least one biological sample. The present invention also relates to a method for imaging a biological sample by microscopy, the method comprising using the embedding agent and / or conductive material of the present invention.

This invention relates to a collagen-moisturizing soft hydrophilic contact lens, belonging to the field of contact lens technology. The collagen-moisturizing soft hydrophilic contact lens of this invention comprises the following components: hydroxyethyl methacrylate, N-vinylpyrrolidone, N,N-dimethylacrylamide, methyl acrylate, collagen, polyethylene glycol 400, polyvinylpyrrolidone K90, azobisisobutyronitrile, azodimethylvaleronitrile, benzoyl peroxide, ethylene glycol dimethacrylate, trimethylolpropane trimethacrylate, and divinylbenzene. This invention solves the problems of rapid decay of moisturizing effect, poor biocompatibility, and low long-term wearing comfort of existing contact lenses through the synergistic effect of a complex hydrophilic monomer system, collagen functional components, a gradient complex initiation system, and a multi-dimensional complex cross-linking system.

A luminescent material comprises a perovskite crystal, a di(meth)acrylate compound of Formula 1 and an aminosilane compound or dispersant: wherein each E is independently H or CH3; each G is independently a branched or unbranched C1-C10 alkanediyl or C3-C12 cycloalkanediyl, optionally substituted with 1 to 3 L5; J is phosphate [OP(=O)(OQ')O], phosphonate [[OP(=O)(OQ1)] carbonate [OC(=O)O], sulfonate [OS(=O)2] or sulfate [OS(=O)2O]; wherein Q1 is independently selected from the group consisting of H, branched or unbranched C1-C10 alkyl or C3-C12 cycloalkyl and C2-C4 alkenyl; each L5 is independently selected from the group consisting of halogen, OH, SH, C1-C4 alkyl, C2-C4 alkenyl, or -[OCH2CH2-]nOQ2; wherein n is an integer from 1 to 10, and each Q2 is independently selected from the group consisting of H, branched or unbranched C1-C10 alkyl or C3-C12 cycloalkyl and C2-C4 alkenyl.

The invention belongs to the technical field of dialysis membranes, and particularly relates to an anionic electrodialysis membrane and a preparation method thereof. The preparation method comprises the following steps: (1) preparing a polytetrafluoroethylene film with modified carbon nanotubes deposited on the surface; (2) preparing an anionic monomer; (3) uniformly mixing an anionic monomer, an anionic monofunctional monomer, ethylene glycol dimethacrylate, a monofunctional nonionic monomer, ammonium persulfate and water to obtain a mixed solution; and (4) completely soaking the polytetrafluoroethylene membrane with the modified carbon nanotubes deposited on the surface into the mixed solution at 20-30 DEG C for 2-3 hours, taking out the polytetrafluoroethylene membrane, and carrying out heating polymerization in a drying oven to obtain the anionic electrodialysis membrane. The anionic electrodialysis membrane prepared by the invention is excellent in comprehensive performance and long in service life.

The present invention provides an aqueous acrylate copolymer microsphere suspension, a preparation method thereof, and an application thereof in preparing a highly light-transmitting self-matting topcoat. The aqueous acrylate copolymer microsphere suspension is prepared from styrene, methyl methacrylate, butyl acrylate, methacrylic acid, (meth)hydroxyethyl acrylate, and 1,4-butanediol dimethacrylate by microsuspension polymerization. The aqueous acrylate copolymer microsphere suspension has water absorption and water loss shrinkage properties, and the suspension has a good protective effect (such as abrasion resistance, water resistance, etc.) after film formation. The topcoat prepared using the aqueous acrylate copolymer microsphere suspension of the present invention can ensure that the coating has good light transmission performance on the basis of excellent matting performance, and has high abrasion resistance and high water resistance at the same time.

The invention discloses a surface molecular imprinting fluorescence sensor based on UIO-66-NH2, a preparation method of the surface molecular imprinting fluorescence sensor and application of the surface molecular imprinting fluorescence sensor in detection of rhodamine 6G, and relates to the field of surface molecular imprinting fluorescence sensors. The preparation method comprises the following steps: S1, dissolving UIO-66-NH2 in acetonitrile, adding warfarin and acrylic acid, and performing ultrasonic treatment to obtain a UIO-66-NH2 solution; adding ethylene glycol dimethacrylate and azodiisobutyronitrile, heating to 70-90 DEG C in an inert atmosphere, carrying out reflux reaction for 7-9 hours, and carrying out suction filtration and drying to obtain an intermediate; and S2, eluting warfarin in the intermediate, and drying to obtain the surface molecular imprinting fluorescence sensor. UIO-66-NH2 is adopted as a carrier and a fluorophore at the same time, the surface molecular imprinting fluorescence sensor capable of specifically recognizing and detecting rhodamine 6G is synthesized, and the surface molecular imprinting technology and the fluorescence sensing technology are combined, so that the capability of specifically recognizing rhodamine 6G of the surface molecular imprinting technology and the fluorescence sensing technology is kept; meanwhile, the advantages of high sensitivity and the like of the rhodamine 6G are fully exerted, so that the aim of trace detection of the rhodamine 6G is fulfilled.

The invention discloses a magnesium ion imprinted polymer and a preparation method and application thereof.The preparation method comprises the following steps that soluble magnesium salt and methyl alcohol are evenly mixed, 8-hydroxyquinoline is added into the mixture, stirring is conducted, magnesium ions and 8-hydroxyquinoline are fully complexed, methacrylic acid is added into the mixture, stirring is conducted for a set time, and a mixed solution is obtained; adding ethylene glycol dimethacrylate into the mixed solution, stirring for a set time, introducing inert gas into the solution, emptying air in the solution, adding azodiisobutyronitrile into the solution, and stirring at 55-65 DEG C to obtain a polymer; and separating and washing the polymer, eluting with an EDTA (Ethylene Diamine Tetraacetic Acid) solution, washing with ethanol and water until the solution is neutral, and drying to obtain the product. The magnesium ion imprinted polymer prepared by the invention can be repeatedly used for multiple times, and the adsorption performance after regeneration is still very stable.

The invention belongs to the technical field of humidity-sensitive materials, and particularly relates to a preparation method of a PEDOT: PSS poly-ampholyte composite material. The preparation method comprises the following steps: preparing a hydrophilic polyampholyte by adopting an initiating chemical vapor deposition method (iCVD), and preparing the hydrophilic polyampholyte on the surface of a flexible polyimide interdigital electrode by taking dimethylaminoethyl methacrylate and methacrylic acid as hydrophilic monomers and ethylene glycol dimethacrylate as a cross-linking agent to form a polyampholyte polymer film; and then spin-coating a conductive polymer PEDOT: PSS on the surface of the film to successfully prepare the PEDOT: PSS poly-ampholyte composite material. The humidity sensor prepared from the PEDOT: PSS poly-ampholyte composite material has the advantages of high sensitivity, small lag, short recovery time and the like.

To provide an active energy ray curable coating agent excellent in leveling property, abrasion resistance and matte property. [Solution] An active energy ray-curable coating agent used to form a surface protective layer of a decorative material having a substrate, a colored layer, and a surface protective layer, The active energy ray-curable coating agent comprises a (poly)alkylene glycol di(meth)acrylate (A1) having an alkylene group with 4 or more carbon atoms and / or a mono(meth)acrylate (A2) having a hydrocarbon group with 4 or more carbon atoms which may contain a heteroatom, a (meth)acrylate (B) having 3 or more functional groups, and fine particles.

Provided are: a laminated iron core in which an Fe-N-based alloy plate is used as a soft magnetic material plate, and an electrically insulating layer / interlayer insulation layer are formed and laminated while maintaining the magnetic properties of the Fe-N-based alloy plate; and a method for manufacturing the same. A laminated iron core according to the present invention is a laminated iron core in which a plurality of soft magnetic material plates are laminated with an electrically insulation layer therebetween, the laminated iron core being characterized in that: the soft magnetic material plates are Fe–N-based alloy plates containing Fe as a main component and containing a N component; the electrically insulation layer is a layer having a predetermined resin material as a matrix; and the predetermined resin material is at least one selected from an epoxy adhesive, a dimethacrylate adhesive, an acrylic adhesive, an ene–thiol adhesive, and a methacrylate ester adhesive.

The invention discloses a silicon hydrogel material as well as a preparation method and application thereof. The preparation method comprises the following steps: curing and molding 2-hydroxyethyl methacrylate (HEMA), 3-(trimethylsiloxy) propyl methacrylate (TRIS), ethylene glycol dimethacrylate (EGDMA), a silane coupling agent and a photoinitiator through a photopolymerization reaction to obtain a silicon hydrogel substrate; performing oxygen plasma treatment; preparing a PDMS hydrophobic layer; performing oxygen plasma treatment; soaking in an organic solution containing a hydrophobic initiator; and forming a hydrophilic polymer layer. The high oxygen permeability, long-acting moisture retention, low friction and protein deposition resistance of the lens are realized by constructing a'hydrophobic water locking-hydrophilic lubrication 'double-layer functional interface.

The article includes a substrate and a layer disposed on the substrate, the layer being at least one coated, photocrosslinked, hot-melt-processable pressure-sensitive adhesive. The adhesive is a (meth)acrylate-based copolymer that is the reaction product of a reaction mixture of a first (meth)acrylate monomer containing an alkyl, alkenyl, or aryl group having 4 to 20 carbon atoms, a second (meth)acrylate monomer containing an alkylene oxide group capped with an alkyl group, a copolymerizable reinforcing monomer, a copolymerizable photocrosslinker, and an initiator.

According to one aspect of the present invention, an intraocular lens material is provided. The intraocular lens material includes a mono(meth)acrylate (A) having an aryl group in its molecular structure, a mono(meth)acrylate (B) different from the mono(meth)acrylate (A) having an aryl group in its molecular structure, and a di(meth)acrylate (C) having an alkylene oxide group in its molecular structure. The content of the mono(meth)acrylate (A) in the intraocular lens material is 45 mol % or more and 70 mol % or less, and the total content of the mono(meth)acrylate (A) and the mono(meth)acrylate (B) is 85 mol % or more. The proportion of the di(meth)acrylate represented by the following general formula (I) in the di(meth)acrylate (C) is 60 mol % or more. [Formula 1] TIFF0007609389000020.tif22130 [In the formula, X is a methyl group or a hydrogen atom, and n is an integer of 12 or more and 30 or less.]

An object of the present disclosure is to provide a composition capable of forming a layer having excellent interlayer adhesion. The composition of the present disclosure includes a polymer S of silsesquioxane having a polymerizable group; and a compound X selected from the group consisting of a monomer M and a polymer P of the monomers M, wherein the monomer M is selected from the group consisting of polyalkylene glycol di(meth)acrylate and urethane (meth)acrylate, in a molecular weight distribution curve of the polymer S obtained by gel permeation chromatography, the peak top molecular weight of the polymer S is 2800 or more, and in a molecular weight distribution curve of the polymer P obtained by gel permeation chromatography, the peak top molecular weight of the polymer P is 3500 or more.

The invention relates to the technical field of high polymer materials, and particularly discloses hydrogel based on microgel reinforced non-covalent crosslinking and a preparation method of the hydrogel. The hydrogel is prepared from the following raw materials: phenylboronic acid-based microspheres, acrylamide and an initiator A; the phenylboronic acid-based microspheres are prepared from the following raw materials: ethyl 2-(2-methoxyethoxy) acrylate, methacrylic acid, ethylene glycol dimethacrylate, 3-acrylamide phenylboronic acid, an emulsifier and an initiator B; the non-covalent cross-linked hydrogel with excellent mechanical properties is prepared by taking the phenylboronic acid-based microspheres as a cross-linking agent, the mechanical properties of the non-covalent cross-linked hydrogel can be regulated and controlled by the proportion of the phenylboronic acid-based microspheres and the pH value of a system, and the prepared hydrogel realizes high tensile strength, high stretch rate and low hysteresis and has excellent fatigue resistance.