137 results about "Vinyl pyridine" patented technology

The invention provides a salt-responsive temperature-resistant salt-resistant water-based drilling fluid tackifying filtrate reducer as well as a preparation method and application thereof, and belongs to the technical field of drilling. The tackifying filtrate reducer is prepared from the following raw materials in parts by mass: 30 to 50 parts of 1-(2-carboxyethyl)-2-vinylpyridine, 20 to 40 parts of (3-(methacrylamido) propyl) dimethyl (3-thiopropyl) ammonium hydroxide inner salt, 35 to 55 parts of N, N-dimethylacrylamide, 10 to 25 parts of 4-vinylpyridine, 300 to 500 parts of water and 1 to 5 parts of an initiator. According to the filtrate reducer, cations and anions are concentrated on one monomer molecule, so that the synthesized product contains the cations and the anions with the same charge number, has good adsorption capacity and salt response characteristics, is compatible with salt essentially, can effectively resist high temperature and high salt, and can be recycled. And the viscosity-increasing and filtrate-reducing agent has good viscosity-increasing and filtrate-reducing effects on the drilling fluid.

The invention discloses a glue solution for a copper-clad plate and a preparation method of the glue solution, and relates to the technical field of copper-clad plates. According to the prepared glue solution for the copper-clad plate, the composite epoxy resin, the curing agent, the accelerant, the solvent, the flexibilizer and the inorganic filler, the composite epoxy resin comprises bisphenol A epoxy resin, epoxy phenyl polysiloxane, itaconic acid polyaryletherketone and hydroxyl-terminated fluorine-containing vinyl polysiloxane, so that the interface bonding force with the copper plate is enhanced; the dielectric constant and the dielectric loss are effectively reduced, the peel strength and the toughness of the material are also remarkably improved, and the toughening agent is modified polyether sulfone microspheres; the modified polyethersulfone microspheres are prepared by coating polyethersulfone microspheres with hexamethylenediamine tetrapropionamide diamine, the hexamethylenediamine tetrapropionamide diamine is prepared by carrying out acylation condensation reaction on hexamethylenediamine tetramethyl propionate and ethylenediamine, and the polyethersulfone microspheres are prepared by carrying out electrostatic spinning on a spinning solution of polyethersulfone and vinylpyridine, so that the peel strength of the glue solution is remarkably improved.

The invention provides a high-molecular adsorption material with high selectivity on platinum group metals as well as a preparation method and application of the high-molecular adsorption material, and belongs to the technical field of material science. Comprising the following steps: (1) preparing a methanol solution containing platinum group metal ions, and adding a functional monomer mixture and modified graphene oxide to form a pre-assembled compound; (2) adding a cross-linking agent and an initiator, removing oxygen, and polymerizing to obtain a polymer; and (3) grinding the polymer, eluting metal ions, washing to be neutral, and drying. The high-molecular adsorption material provided by the invention takes modified graphene oxide as a support body, template molecules and specific functional monomers (4-vinylpyridine and 2-mercaptobenzimidazole) are combined to form a pre-assembled compound, then a cross-linking agent and an initiator are added, recognition sites are fixed through cross-linking polymerization, and finally, the high-molecular adsorption material is obtained after the template molecules are eluted. The adsorbent is high in adsorption rate, capable of specifically adsorbing platinum group metal, good in stability and reproducibility and capable of being repeatedly used.

The invention relates to the technical field of polymer photoelectric materials, in particular to a preparation method of a supramolecular gel electrolyte. The method comprises the following steps: esterifying tetraphenylethylene alcohol and methacryloyl chloride to form tetraphenylethylene methacrylate, and performing staged linear heating polymerization on the tetraphenylethylene methacrylate, 3-(methacrylamido) propyl dimethyl 3-thiopropyl ammonium oxide inner salt, acrylic acid, tetraphenylethylene methacrylate and 4-vinylpyridine under the action of ammonium persulfate to obtain a tetraphenylethylene copolymer. And finally, soaking in a lithium chloride aqueous solution to obtain the supramolecular hydrogel electrolyte. The hydrogel obtained by the invention has high mechanical strength and high ionic conductivity, and is suitable for energy storage devices such as flexible supercapacitors and the like.

The present disclosure relates to a procedure for the synthesis of polymers (homo and copolymers) of the poly (ionic liquid) (PIL) type. The homopolymers are derived from polyvinylimidazolium, polyvinylpyrrolidone or polyvinylpyridine and the copolymers from monomers of vinyl ionic liquids (ILs) are derived from imidazole and N-vinylpyrrolidone. The structural modification of these homopolymers and copolymers occurs by using strong inorganic acids such as sulfuric, chlorosulfonic and bromosulfonic, among others, and halide metallic salts such as AlCl3, FeCl3, CuCl, ZnCl2, and SnCl2. Also, these PILs are employed as catalysts in alkylation reactions between isoparaffins and olefins for producing alkylate gasoline.

The invention relates to the technical field of tobacco smoke analysis, and discloses a gas sensor for detecting the content of 3-vinylpyridine in real time and a preparation method of the gas sensor. In order to realize accurate detection of tobacco smoke in the environment, 3-vinylpyridine in environmental gas is taken as a detection object, a SnO2 nanofiber material is further taken as a gas sensitive element, the detection sensitivity of the 3-vinylpyridine is remarkably improved, the SnO2 nanofiber material is arranged on the heating substrate, and the gas sensitive element is arranged on the heating substrate. The gas sensor generates a resistance change signal which linearly changes along with the change of the content of 3-vinylpyridine, so that the environmental tracing of the tobacco smoke is realized. Therefore, the invention provides the gas sensor with high sensitivity and high accuracy for tobacco smoke environment tracing.

The invention discloses a method for synthesizing 2-vinylpyridine by a one-pot method, which comprises the following step: by taking 2-methylpyridine and paraformaldehyde as raw materials and water as a solvent, synthesizing the 2-vinylpyridine by a one-pot reaction under the catalysis of a basic catalyst. According to the invention, 2-methylpyridine and paraformaldehyde are taken as initial raw materials, the raw materials are simple and easy to obtain, the production cost is reduced, and water is taken as a solvent, so that the use of a large amount of organic solvents is avoided, and the influence on environmental pollution is small. In the reaction, a basic catalyst such as triethylamine is used as a catalyst, a small amount of sodium hydroxide solid is added in the reaction process, the basic catalyst enables the whole system to be in an alkaline environment, and sodium hydroxide improves the depolymerization efficiency of paraformaldehyde and promotes the dehydration process of the reaction, so that the selectivity and yield of 2-vinylpyridine are improved.

An object of the present invention is to provide an antiviral aerosol composition that has high stability and can be aerosol-applied without causing nozzle clogging or the like, the antiviral aerosol composition being capable of forming a coating film whose copper-doped silica exhibits excellent antiviral properties and which is firmly retained on the surface of an article; a coating film formed from the antiviral aerosol composition; and an article comprising the coating film. The antiviral aerosol composition of the present invention as a means for resolution comprises (1) a copper-doped silica, (2) a vinylpyrrolidone unit-containing polymer, (3) an alcohol-based solvent or a mixed solvent of an alcohol-based solvent and water, and (4) a propellant. The coating film of the present invention is formed from the antiviral aerosol composition of the present invention. The article of the present invention comprises the coating film of the present invention.

The present invention discloses the application of a water-soluble and positively charged fluorescent probe TPA-3Py for the detection of sodium heparin. TPA-3Py is obtained by covalently connecting three methylated vinylpyridines to the three arms of a triphenylamine molecule respectively. Heparin can induce the aggregation-induced emission effect of this fluorescent molecule. With the increase of the heparin content, the fluorescence intensity increases significantly, showing a good fluorescence turn-on response, overcoming the deficiency that the fluorescence probe quenches due to aggregation during the detection of heparin in the prior art. When a 10 μM aqueous solution of TPA-3Py is used for the detection of heparin, a stable fluorescence intensity is achieved within 5 minutes, the linear range is 0 - 6.14 mg / L (R<supgt;2< / supgt> = 0.9938), the lowest detection limit is 49.53 ng / mL, and the quantum yield reaches 4.85%. For the detection of sodium heparin, the TPA-3Py probe adopted in the present invention overcomes the quenching phenomenon caused by aggregation and exhibits a significant AIE effect. The fluorescent probe TPA-3Py for the detection of sodium heparin in the present invention has high sensitivity, high fluorescence intensity, rapid response and stable signal. The fluorescent molecular structure of TPA-3Py is simple, and the detection method is simple and easy to implement, which is worthy of popularization and application in the determination of the sodium heparin content.

The invention provides a spiro butane indolone derivative as well as a preparation method and application thereof, and belongs to the technical field of organic chemical synthesis. The series cyclization coupling reaction of the N-iodo aryl dicyclobutyl amide compound and the vinyl pyridine compound is realized by utilizing a photocatalytic system, and the method is used for constructing the spiro butane indolone derivative containing the pyridine structure. The spirobutane indolone derivative synthesized by the invention has an inhibition effect on H1975 human lung adenocarcinoma cells; the preparation method provided by the invention is mild in condition and simple and convenient to operate, has economical steps, provides a convenient synthesis way for the complex bioactive molecules, and has a good application prospect.

The invention provides high-temperature-resistant textured paper and a preparation process thereof, and belongs to the technical field of textured paper. The preparation process comprises the following steps: preparing the raw paper; preparing a gum dipping solution; and impregnating the raw paper. The preparation method comprises the following steps: by taking p-vinylbenzoic acid and 2-vinylpyridine as functional monomers, mixing the p-vinylbenzoic acid and 2-vinylpyridine with styrene, butadiene and tert-dodecanethiol, adding the mixture into an emulsifier solution, emulsifying to prepare a pre-emulsion, then carrying out copolymerization under the initiation of potassium persulfate to prepare modified styrene-butadiene latex, and introducing carboxyl to form a strong hydrogen bond, so as to obtain the modified styrene-butadiene latex. According to the modified styrene-butadiene latex, the action force between molecular chains is remarkably enhanced, polar nitrogen atoms of pyridine rings and polar groups in adjacent molecular chains can form dipole interaction, the binding force between molecules is enhanced, and then the thermal stability of the styrene-butadiene latex is improved. The high temperature resistance of the prepared masking paper can be effectively improved.

The invention relates to the technical field of organic silicon resin preparation, in particular to a synthesis method and application of high-performance moisture-curing organic silicon resin. The preparation method of the organic silicon resin comprises the following steps: step 1, adding an epoxy monomer and 2-vinylpyridine into a solvent, and then adding an initiator to obtain a mixed solution; step 2, adding an organic silicon monomer into a solvent, adding a composite catalyst, and stirring for reaction to obtain an organic silicon prepolymer; and step 3, adding the modified filler into the mixed solution at room temperature, carrying out stirring reaction under the protection of inert gas, then adding the organic silicon prepolymer, carrying out copolymerization reaction, and carrying out reduced pressure distillation to obtain the organic silicon resin. The prepared organic silicon resin has the advantages of excellent mechanical property, high tensile strength, large elongation at break, excellent tear strength, waterproofness, good bonding strength, high curing efficiency, short surface drying and hard drying time, mechanical strength and flexibility, and reliable waterproofness and cohesive force.

The application belongs to the field of organic synthesis, and particularly relates to a synthesis method of 2-(3,3-dimethylbutyl)pyridine. 2-vinylpyridine, brominated tertiary butane, a mixed solution of dimethyl ether and isopropyl ether as a reaction system solvent, nickel iodide as a nickel salt, bipyridine as a ligand, dicyclohexylmethylamine as a base in the system, 2,6-dimethyl-3,5-diethyl-1,4-dihydropyridine as a reducing agent, a photocatalyst 2,4,5,6-tetrakis(9 ‑ Carbazole) - m-phenylenedinitrile, under the condition of room temperature and nitrogen atmosphere, a reduction cross-coupling reaction is used to synthesize 2-(3,3-dimethylbutyl)pyridine. The application uses inexpensive nickel metal as a catalyst, constructs a cross-coupling reaction of carbon-carbon bond, and has the advantages of mild reaction condition, high economy and the like.

The application belongs to the technical field of oil exploitation, and particularly relates to a temporary plugging agent for fracturing acidification and a preparation method thereof. The preparation method is as follows: in a reactor, itaconic acid, p-styrene sulfonic acid, 2-allyloxy methyl-2-hydroxymethyl propane-1,3-diol, vinyl pyridine, pentaerythritol diacrylate, buffer salt and deionized water are sequentially added, stirring is conducted, the pH value is adjusted, and all raw materials are completely dissolved; an initiator is added from a high-position dropping tank, the reaction is automatically heated, the reaction is kept, a reducing agent is added, the reaction is terminated, the pH value is adjusted, and a temporary plugging agent solution is obtained; the temporary plugging agent solution is dried and granulated to obtain the product temporary plugging agent. The preparation method has the characteristics of simple synthesis process and no by-products; the temporary plugging agent has the advantages of large water absorption, large plugging strength, high breakthrough pressure, self-degradation and designable degradation time.

The application provides a dithiol modified copolymer and a preparation method and application thereof, and particularly relates to the technical field of lithium batteries. In the dithiol modified copolymer, the copolymer is a branched diene-vinyl pyridine copolymer, which is mainly obtained by copolymerization of branched diene and vinyl pyridine. The dithiol modified copolymer provided by the application has a main chain composed of flexible branched diene units, which endows the copolymer with a good elastic skeleton structure; vinyl pyridine is introduced as a functional monomer, so that a pyridine group is formed on the side chain of the copolymer; a dithiol compound introduces a thiol group (-SH) to the copolymer, and finally, the dithiol modified copolymer has a flexible main chain structure, and the side chain simultaneously contains a pyridine group and a thiol group, and has good elasticity and functional characteristics.

The invention belongs to the technical field of biosensors, and provides molecularly imprinted hydrogel for sarcosine detection, a micro-strain conduction sensor and a preparation method of the micro-strain conduction sensor. The hydrogel is prepared by the following steps: carrying out photo-initiation polymerization on a gel pre-polymerization solution containing a 4-vinylpyridine monomer, a 2-acrylamide-2-methylpropanesulfonic acid monomer, an acrylamide monomer, sarcosine template molecules, a cross-linking agent and a photoinitiator, and washing to remove the sarcosine template molecules. The micro strain conduction sensor is composed of a hydrogel layer and a resistance strain gauge, and the hydrogel layer is chemically bonded to one side of the resistance strain gauge and completely covers sensitive grid wires of the resistance strain gauge. The hydrogel disclosed by the invention has excellent specific recognition capability on sarcosine, and high-sensitivity and high-selectivity detection of sarcosine in a complex matrix sample can be realized through the micro strain conduction sensor disclosed by the invention.

The invention relates to the technical field of block copolymer materials, in particular to a preparation method of a polystyrene-vinylpyridine block copolymer composite membrane. The preparation method comprises the following steps: firstly, preparing a polyvinyl pyridine macromolecular chain transfer agent, then preparing a polystyrene-polyvinyl pyridine block copolymer, dissolving the synthesized polystyrene-polyvinyl pyridine block copolymer, spin-coating the surface of a microfiltration membrane with the dissolved polystyrene-polyvinyl pyridine block copolymer, and adjusting membrane-forming and pore-forming parameters, so that the block copolymer forms a continuous and uniform membrane layer on the surface of a base membrane; meanwhile, the interface is tightly combined with the base membrane. According to the method, high monomer conversion rate and narrow molecular weight distribution are achieved under the synergistic effect of the chain transfer agent and the free radical initiator, the polymerization activity is maintained by supplementing the initiator in different stages, and the polymerization efficiency is effectively improved.

The present application relates to the technical field of membrane separation, in particular to a PVDF ultrafiltration membrane, a preparation method and application thereof, wherein the PVDF is in-situ modified by copolymerization of vinylpyridine, hydroxy acrylate and vinylidene fluoride, so as to improve the hydrophilicity, heat resistance and flexibility of the PVDF; the dispersibility of titanium oxide and the compatibility with the modified PVDF are improved by multi-component modification of the titanium oxide; and then the modified PVDF, the modified titanium oxide and a pore-forming agent are used as raw materials to prepare the ultrafiltration membrane, so that the prepared PVDF ultrafiltration membrane has a high water treatment flux, and the mechanical property, anti-fouling property and stability of the PVDF ultrafiltration membrane are improved; the prepared PVDF ultrafiltration membrane has a good water treatment effect and a good application prospect.

The application provides a kind of polyamide acid salt, negative photosensitive polyimide and its preparation method and electronic product, it is related to microelectronic technology field.The structure general formula of polyamide acid salt is: the preparation method of polyamide acid salt includes: under the protection atmosphere, diamine monomer and dianhydride monomer are carried out first reaction to obtain polyamide acid solution, then join photosensitive vinylpyridine compound, and carry out second reaction to obtain the polyamide acid salt.The polyamide acid salt provided in the application is the core raw material for obtaining low dielectric, alkali developable negative photosensitive polyimide, and the obtained negative photosensitive polyimide has good thermal stability, mechanical property, lower dielectric constant and can be developed in alkaline solution.

Nanocomposites comprising nanoparticles, small molecules, and block copolymer (BCP)-based supramolecules are provided. The nanoparticles, small molecules, and BCP-based supramolecules self-assemble into a plurality of nanosheets that form a multilayer nanocomposite. The nanoparticles, small molecules, and BCP-based supramolecules can be Zr02, 3-pentadecylphenol (PDP), polystyrene-b-poly(4-vinylpyridine) block copolymer (PDP) 1, respectively. b A method of producing a nanocomposite by contacting nanoparticles, small molecules, and BCP-based supramolecules with a solvent and drying to remove the solvent to allow self-assembly is also provided. The nanocomposites provided herein can be used as a barrier material against volatile organic compounds, water, oxygen, or electrons, and can be used as a coating on various substrates and as a packaging material, or as an optical material.

The invention provides a dithiol modified copolymer as well as a preparation method and application thereof, and particularly relates to the technical field of lithium batteries. In the dithiol modified copolymer, the copolymer is a branched chain diene-vinylpyridine copolymer, and is mainly obtained by copolymerizing branched chain diene and vinylpyridine. According to the dithiol modified copolymer provided by the invention, a main chain is composed of flexible branched chain diene units, so that the copolymer is endowed with a good elastic skeleton structure; vinylpyridine is introduced as a functional monomer, so that a pyridine group is formed on a side chain of the copolymer; the dithiol compound introduces a thiol group (-SH) into the copolymer, the finally obtained dithiol modified copolymer has a flexible main chain structure, a side chain contains a pyridine group and the thiol group at the same time, and the dithiol modified copolymer has good elasticity and functionalization characteristics.

The present disclosure provides, as a film structure useful for a probe of a biosensor, a film structure comprising a detection layer including an analyte-responsive enzyme; and a protection film formed on the detection layer, in which the protection film includes a copolymer mixture including poly(styrene-ran-4-vinylpyridine-ran-propyleneglycol methacrylate); and poly(4-vinylpyridine)-block-poly(C1-15 alkyl methacrylate), or poly(4-vinylpyridine-ran-2-hydroxyethyl methacrylate).

The present invention relates to the technical field of storage batteries, and specifically proposes a tubular battery non-uniform electrolyte, including a first colloidal electrolyte, a second colloidal electrolyte and a third colloidal electrolyte, wherein the three electrolytes are respectively distributed in the interior of the pole group of the tubular battery, between the periphery of the pole group and the bus bar, and the area above the bus bar, and the first colloidal electrolyte, the second colloidal electrolyte and the third colloidal electrolyte all include a mother liquor, and the mother liquor is calculated by weight, including 10 parts of water, 1.5-2.5 parts of mesoporous SiO2 nanoparticles, 0.8-1.2 parts of polystyrene-b-poly(2-vinylpyridine) micelles, 0.01-0.05 parts of photoinitiators, 0.01-0.05 parts of antioxidants and 0.3 parts of dispersants, and the first colloidal electrolyte and the second colloidal electrolyte also include sulfuric acid solution. The synergistic effect of the gradient electrolyte design and the mesoporous SiO2 / micelle composite system is adopted to significantly improve the comprehensive performance of the tubular colloidal battery.

The invention provides a high-temperature-resistant suspending agent as well as a preparation method and application thereof. The high-temperature-resistant suspending agent is prepared from raw material components including modified hectorite, olefin sulfonate and alkenyl polycyclic monomers through a polymerization reaction, the modified hectorite is hectorite modified by a silane coupling agent; the alkenyl polycyclic monomer is one or more of 1-vinyl-2-pyrrolidone, 5-vinyl-2-pyrrolidone and 4-vinylpyridine, and the alkenyl polycyclic monomer is one or more of 1-vinyl-2-pyrrolidone, 5-vinyl-2-pyrrolidone and 4-vinylpyridine; the olefin sulfonate is one or more of sodium 2-acrylamido-2-methylpropanesulfonate, sodium vinyl sulfonate, sodium p-styrenesulfonate and sodium allysulfonate. The high-temperature-resistant suspending agent disclosed by the invention can be well dispersed in a water phase, is not easy to aggregate under high-temperature and high-salt conditions, is applied to the high-temperature-resistant water-based drilling fluid, can effectively enhance the suspension property of solid-phase particles in the drilling fluid, and ensures that the drilling fluid has good stability.

The present invention provides a temperature and salt resistant polyionic liquid lubricant for water-based drilling fluids, its preparation method and application, belonging to the field of drilling technology. The lubricant of the present invention is prepared from the following raw materials in parts by weight: 80-120 parts of water, 10-15 parts of N-hydroxymethylacrylamide, 5-10 parts of 1-vinylpyridine tetrafluoroborate, 5-10 parts of (3-acrylamidopropyl) trimethylammonium chloride, 5-10 parts of polyethylene glycol methyl ether methacrylate, 0.01-0.03 parts of emulsifier, 0.20-0.80 parts of initiator, and 1-3 parts of defoamer. The lubricant of the present invention has a temperature resistance of up to 220°C and a salt tolerance up to saturation, and has excellent temperature and salt resistance and lubricating properties. In addition, the lubricant of the present invention has a low molecular weight, has little influence on the rheological properties of water-based drilling fluids, is easy to disperse, has good environmental protection, and meets the drilling requirements of environmentally sensitive areas.

The invention belongs to the technical field of organic synthesis, and particularly relates to a preparation method of 4-vinylpyridine, which comprises the following steps: by taking 4-methylpyridine as an initial raw material, carrying out condensation reaction under the action of a catalyst to obtain an intermediate 4-hydroxyethylpyridine, carrying out dehydration reaction on the 4-hydroxyethylpyridine in the presence of a polymerization inhibitor and a solid acid catalyst to obtain the 4-vinylpyridine, the yield is not less than 90% and the purity is not less than 98%; the invention provides the preparation method of the 4-vinylpyridine, the product quality is good, and the preparation method has better technical economy and application prospect.

This invention relates to the field of organosilicon resin preparation technology, specifically to a method for synthesizing a high-performance moisture-curing organosilicon resin and its application. The preparation steps of the organosilicon resin are as follows: Step 1, adding an epoxy monomer and 2-vinylpyridine to a solvent, then adding an initiator to obtain a mixture; Step 2, adding the organosilicon monomer to the solvent, adding a composite catalyst, and stirring to react, obtaining an organosilicon prepolymer; Step 3, at room temperature, adding a modified filler to the mixture, stirring to react under inert gas protection, then adding the organosilicon prepolymer, copolymerizing, and distilling under reduced pressure to obtain the organosilicon resin. The prepared organosilicon resin exhibits excellent mechanical properties, high tensile strength, large elongation at break, excellent tear strength, water impermeability, good bonding strength, and high curing efficiency, with short surface drying and hard drying times. It possesses both mechanical strength and flexibility, as well as reliable waterproofing and adhesion.

The utility model relates to the technical field of rectification equipment, and discloses a 2-vinylpyridine rectification device, which comprises a rectification tower main body and a feed pipe fixedly connected inside the rectification tower main body, the output end of the feed pipe is fixedly connected with a fixed pipe, and the outer surface of the fixed pipe is fixedly connected with a spray head. By means of the annular disc capable of sliding in the inner cavity, when materials do not need to be sprayed out, due to the strong pressure in the sealing groove, the annular disc can be driven by the sealing disc and the fixing rod to slide downwards, the inserting rod is inserted into the spraying hole, and in the intermittent period of equipment operation, the annular disc is driven by the strong pressure in the sealing groove to slide downwards; the plunger is inserted into the spray hole, polymer particles, insoluble impurities and crystals which are possibly blocked in the spray hole can be effectively removed, and the cleaning mode can be used for timely cleaning before spraying each time, so that uneven feeding caused by blockage is avoided, and good gas-liquid contact and high-efficiency rectification operation are maintained.

The application discloses a 2,4-dinitrophenol / Pb (II) double-template imprinted polymer adsorbent and a preparation method thereof. The double-template imprinted monolithic adsorbent is prepared by using in-situ polymerization technology, 2,4-dinitrophenol and Pb (II) are used as imprinting templates, 4-vinylpyridine and dimethylaminopropyl acrylamide are used as functional monomers. The functional monomers and the templates are effectively combined through hydrogen bond action and coordination action, and then a porogen and a crosslinking agent are added to react to form a polymer. The double templates are eluted, and a three-dimensional cavity structure with specific recognition function is left. The specific binding sites and shapes on the cavity are used to realize selective extraction of NP S and Pb (II). Meanwhile, the prepared double-template imprinted adsorbent has the advantages of simple operation, good permeability, low cost and wide application range, and therefore the double-template imprinted polymer monolithic adsorbent prepared by the application has good practical application value.