224 results about "Allylamine" patented technology

The invention relates to the technical field of fibers, and discloses an ultrahigh-moisture-absorption anti-static polyester fiber and a preparation method thereof. The preparation method comprises the following steps: carrying out nucleophilic substitution reaction on 1, 2-benzisothiazolin-3-one and methacryloyl chloride to obtain modified benzisothiazolinone; the preparation method comprises the following steps: carrying out nucleophilic substitution reaction on phosphonitrilic chloride trimer and allylamine, and then carrying out nucleophilic substitution reaction on the phosphonitrilic chloride trimer and melamine again to obtain modified cyclophosphazene; the preparation method comprises the following steps: mixing gamma-methacryloxypropyltrimethoxysilane with aluminum zinc oxide for reaction, and mixing the obtained modified aluminum zinc oxide with modified benzisothiazolinone and modified cyclophosphazene for copolymerization in the presence of an initiator to obtain a flame-retardant antibacterial additive; mixing the flame-retardant antibacterial additive, calcium carbonate and polyethylene glycol terephthalate, performing melt spinning, and performing acid treatment to obtain modified polyester fibers; dipping the modified polyester fiber in a finishing liquid containing modified chitosan to obtain the ultrahigh-moisture-absorption anti-static polyester fiber.

The invention discloses a flame-retardant corrosion-resistant coating and a preparation method thereof, and relates to the technical field of coatings. When the flame-retardant and corrosion-resistant coating is prepared, hexaaryl biimidazole and epoxy chloropropane are subjected to a reaction, and epoxidized hexaaryl biimidazole is prepared; the pre-modified mica sheet and 3-aminopropyltriethoxysilane are subjected to a reaction, and a modified mica sheet is prepared; the preparation method comprises the following steps: reacting allyl amine with 4 '-[4-(bromomethyl) phenyl]-2, 2': 6 ', 2' '-terpyridyl to obtain allyl terpyridyl; the preparation method comprises the following steps: reacting epoxy resin with allyl terpyridyl to obtain modified epoxy resin; and uniformly mixing the modified epoxy resin, epoxidized hexaaryl biimidazole, the modified mica sheet, isophorone diamine and acetone to prepare the flame-retardant corrosion-resistant coating. The flame-retardant corrosion-resistant coating prepared by the invention has excellent corrosion resistance, flame retardance and self-repairing performance.

The invention discloses an anti-scale cross-linked polymer fracturing fluid and a preparation method thereof, and relates to the technical field of petroleum fracturing fluids. When the anti-scale cross-linked polymer fracturing fluid is prepared, allylamine hydrochloride and epoxy chloropropane react to prepare a double-bond chlorinated intermediate; reacting the double-bond chlorinated intermediate with lauramidopropyl dimethylamine to prepare a cationic monomer; copolymerizing a cationic monomer and acrylamide to prepare a cationic polymer; the preparation method comprises the following steps: reacting L-lysine with formaldehyde and phosphorous acid to prepare phosphoric acid modified lysine; reacting the phosphoric acid modified lysine with allyl glycidyl ether to prepare a phosphoric acid modified monomer; acrylamide and an anionic monomer are copolymerized to prepare an anionic polymer; the anionic polymer and the cationic polymer are dissolved in water to prepare the anti-scale cross-linked polymer fracturing fluid. The anti-scale cross-linked polymer fracturing fluid prepared by the invention has the advantages of scale prevention, good temperature resistance, good shear resistance and self-crosslinking.

The invention discloses a water body heavy metal ion pollution treatment adsorption filtering membrane and a preparation method thereof, and relates to the technical field of water treatment. When the water body heavy metal ion pollution treatment adsorption filtering membrane is prepared, graphene oxide sequentially reacts with 3-diethylaminopropylamine, tetrabromophenyl porphyrin and N, N-diethyl allylamine, and functionalized graphene oxide is prepared; the preparation method comprises the following steps: reacting cellulose with 4 '-bromo-2, 2': 6 ', 2' '-terpyridyl and maleic anhydride in sequence to prepare modified cellulose; the preparation method comprises the following steps: reacting sodium alginate with propylene oxide to prepare modified sodium alginate; the modified sodium alginate, the modified cellulose, the functionalized graphene oxide, trans, trans-1, 3-butadiene-1, 4-dicarboxylic acid and a photoinitiator are subjected to a reaction, a membrane is prepared, and the water body heavy metal ion pollution treatment adsorption filtering membrane is prepared. The water body heavy metal ion pollution treatment adsorption filtering membrane prepared by the invention has good antibacterial and photocatalytic organic matter degradation capabilities.

The invention discloses a process for preparing flame-retardant polyethylene plastic by recycling waste polyethylene plastic, and relates to the technical field of high polymer materials. When the flame-retardant polyethylene plastic is prepared, the waste polyethylene is extruded and granulated to prepare the polyethylene master batch; carrying out catalytic pyrolysis on the polyethylene master batch, and then reacting with potassium permanganate to prepare a hydroxylated carbon nanotube; the preparation method comprises the following steps: reacting a hydroxylated carbon nanotube with 1-(chloro-methylphosphoryl) ethylene, and then reacting with (mercaptomethyl) triethoxysilane to prepare a modified carbon nanotube; the preparation method comprises the following steps: carrying out irradiation grafting on a polyethylene master batch, 2-hydroxy-4-propenyl benzophenone and N, N-diethyl allylamine, and then reacting with chloromethyl triethoxy silane to prepare modified polyethylene; and carrying out melt extrusion on the modified carbon nanotubes and the modified polyethylene, carrying out injection molding, and carrying out water treatment to obtain the flame-retardant polyethylene plastic. The flame-retardant polyethylene plastic prepared by the invention has good flame retardant property, antibacterial property, tensile strength and anti-aging property.

A composite membrane for desalination includes a polyethylene terephthalate (PET) nonwoven layer having a fibrous structure, and has an average thickness of about 30 to 200 micrometers (μm). A polysulfone (PS) layer having an average thickness of about 30 to 100 μm is disposed on a surface of the PET nonwoven layer. Further, a polyamide layer is disposed on a surface of the PS layer including reacted units of an acyl compound, a phenylenediamine monomer, and a poly-(DADMAC-co-DADA). The polyamide layer has a rough surface including a plurality of irregular-sized ridge-and-valley structures of polyamide. The poly-(DADMAC-co-DADA) has a formula (I), and n is a positive integer.

The invention discloses an antibacterial composite material for water treatment and a preparation method thereof in the technical field of composite materials, and the antibacterial composite material is prepared from the following components in parts by weight: 20-25 parts of a magnetic nano material, 19-22 parts of acrylic acid, 6-9 parts of allylamine, 1.8-2.2 parts of N, N '-methylene bisacrylamide, 1.3-1.6 parts of azodiisobutyronitrile and 4.3-5.5 parts of plant polyphenol. Cobalt ferrite is used as a magnetic core to prepare a magnetic nano material to improve the recovery rate, acrylic acid and allylamine are used as polymeric monomers to form a polymer layer with high adsorption capacity, and plant polyphenols are combined on the surface, so that the adsorption performance and the catalytic decomposition performance are enhanced, and the antibacterial effect of the material is improved at the same time; further, the composite material with the functions of adsorbing heavy metal ions, decomposing organic pollutants and resisting and inhibiting bacteria is obtained.

The invention relates to the technical field of microsphere profile control agents, in particular to a high-temperature-resistant polymer microsphere profile control agent and a preparation method thereof. At the temperature higher than 70 DEG C, the structure of a conventional polyacrylamide microsphere is easily degraded, and the water channeling phenomenon cannot be slowed down in the water injection and oil extraction process. In order to solve the technical problems, the invention provides the high-temperature-resistant polymer microsphere profile control agent, the structure of the high-temperature-resistant polymer microsphere profile control agent is a microsphere obtained by reacting acrylamide, allylamine, nitrogen-nitrogen methylene bisacrylamide and activated carbon quantum dots under a reverse emulsion polymerization condition, and the carbon quantum dots are mainly introduced into a polyacrylamide microsphere molecular structure, so that the high-temperature-resistant polymer microsphere profile control agent is prepared. The carbon quantum dots can play a role in supporting a framework in a high-temperature environment, the stability of the polyacrylamide microspheres at the high temperature can be effectively improved, it is ensured that the profile control agent effectively plays a water plugging role in the high-temperature water injection oil extraction process, and the water channeling phenomenon is remarkably reduced.

The invention discloses a lithium ion battery diaphragm and a preparation method thereof, and relates to the technical field of battery diaphragms. When the lithium ion battery diaphragm is prepared, dianhydridized DOPO (9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide), 4, 4 '-diaminodiphenyl ether and 2-vinyl-4, 6-diamino-1, 3, 5-triazine are subjected to a reaction, and polyamide acid microspheres are prepared through electrostatic spraying; the preparation method comprises the following steps: sequentially reacting polyethylene with allylamine and allyl-1, 3-sultone to prepare modified polyethylene; mercaptopropyltrimethoxysilane and hydroxylated boron nitride are subjected to a reaction, and modified boron nitride is prepared; mixing polyvinylpyrrolidone, the modified polyethylene, the polyamide acid microspheres and the modified boron nitride, and performing hot pressing to form a film, so as to prepare the lithium ion battery diaphragm. The lithium ion battery diaphragm prepared by the invention has excellent ionic conductivity, flame retardance and mechanical property.

The application belongs to the technical field of lithium ion battery adhesives, and particularly relates to a hyperbranched network polyacrylic acid resin special for silicon-carbon negative electrodes, a preparation method and application thereof. The hyperbranched network polyacrylic acid resin special for silicon-carbon negative electrodes comprises, by mass fraction, 3-10 parts of water-based acrylic acid resin, 4-10 parts of monomer A, 2-6 parts of monomer B, 2-6 parts of monomer C, 60-80 parts of solvent, 0.1-0.2 parts of chain extender, 1-8 parts of crosslinking agent and 0.5-1 part of silane coupling agent. The monomer A is an acrylic ester monomer, the monomer B is an acrylamide monomer, the monomer C is at least one selected from an allyl amine monomer and an acrylonitrile monomer, and the chain extender is at least one selected from dodecyl mercaptan and 2-mercaptoethanol. The polyacrylic acid resin has high viscosity and peeling strength, and the prepared lithium ion battery negative electrode material has high discharge specific capacity and cycle performance.

The invention relates to the field of adhesives, and discloses a modified starch-based adhesive and a preparation method thereof, the modified starch-based adhesive comprises modified starch, adipic dihydrazide and borax; the modified starch is prepared by graft copolymerization of modified nano zinc oxide, diacetone acrylamide, diallyldimethylammonium chloride and starch; the modified nano-zinc oxide is prepared by grafting a modified silane coupling agent on the surface of nano-zinc oxide, and the modified silane coupling agent is prepared by performing dehydration condensation on an intermediate prepared by reacting itaconic anhydride and phenyltris (dimethyl siloxane) silane and allylamine to prepare a double-bond grafted intermediate; then, 2-mercaptobenzothiazole, 3-mercaptopropyltriethoxysilane and the double-bond grafted intermediate are subjected to a thiol-ene click reaction, and the adhesive is prepared. According to the invention, the modified starch, the adipic dihydrazide and the borax are added, so that the adhesive is endowed with good adhesive performance, water resistance, heat resistance, antibacterial performance and flame retardant performance.

The invention relates to a selective nanofiltration membrane as well as a preparation method and application thereof. The selective nanofiltration membrane comprises a support layer and a separation layer, the separation layer is obtained through interfacial polymerization of an oil-phase reactant and a water-phase reactant; the water-phase reactant comprises a negatively charged monomer and a positively charged monomer; the positively charged monomer comprises any one or a combination of at least two of polyvinylamine, polyethyleneimine, diethylenetriamine, water-soluble chitosan, quaternized polyethyleneimine, polyallylamine or triethylene tetramine. According to the method, monomers with different charges are added into a water phase, so that the nanofiltration membrane is wholly charged and neutral, the interception of sodium sulfate can be effectively reduced, the interception of antibiotics is increased, and the separation of the antibiotics and inorganic salts can be efficiently promoted.

The invention discloses a thin-type flexographic printing cold stamping material and a preparation process thereof, and relates to the technical field of cold stamping materials. The thin-type flexographic printing cold stamping material sequentially comprises a base film layer, a release layer, an imaging layer, an aluminum plating layer and an adhesive layer from bottom to top, the imaging layer is prepared from the following raw material components: composite acrylic resin, modified polyepichlorohydrin, pigment, ethanol, water, a coupling agent and nano silicon dioxide; the composite acrylic resin is obtained by copolymerizing 2, 4, 6-tri (allyloxy)-1, 3, 5-triazine, acrylic acid, butyl acrylate, diallylamine hydrochloride, methyl methacrylate and hydroxyethyl methylacrylate; the modified polyepichlorohydrin is obtained by modifying POSS (Polyhedral Oligomeric Silsesquioxane); the imaging layer of the prepared thin-type flexographic printing cold stamping material is good in adhesiveness, flame retardance and abrasion resistance.

The invention discloses silanized polyphenyl ether resin and a preparation method thereof, and a high-temperature-resistant low-dielectric material and a preparation method thereof. The preparation method of the high-temperature-resistant low-dielectric material comprises the following steps: reacting polyphenyl ether resin with a brominating agent to obtain brominated polyphenyl ether resin, and carrying out amination reaction on the brominated polyphenyl ether and allylamine to obtain polyphenyl ether resin with high allyl content; the preparation method comprises the following steps: under the action of a photoinitiator, carrying out sulfydryl-alkene click chemical reaction on allyl polyphenyl ether resin and sulfydryl silane under an ultraviolet light condition to obtain silanized polyphenyl ether resin, or carrying out hydrosilylation reaction on the allyl polyphenyl ether resin and hydrogen-containing silane under the action of a catalyst to obtain the silanized polyphenyl ether resin; and carrying out moisture curing under the action of a catalyst to obtain the high-temperature-resistant low-dielectric material with excellent performance. The preparation and curing method is simple and convenient, the raw materials are easy to obtain, moisture curing can be realized, and the cured material has the characteristics of excellent high temperature resistance and low dielectric property.

The present invention relates to a composite boron powder and a preparation method thereof. The composite boron powder is prepared by a secondary condensation method using a vinylidene fluoride / propylene alcohol copolymer as a compounding agent, a polyethylene glycol monobutyl ether acrylate / acrylonitrile / allylamine / hydroxyethyl acrylate copolymer as an auxiliary compounding agent, an epoxy resin as a high-strength composite adhesive, and diethylenetriamine as a curing agent. The amounts of the components are based on the mass of the boron powder: the mass of the vinylidene fluoride / propylene alcohol copolymer is 1-2% of the mass of the boron powder, the mass of the polyethylene glycol monobutyl ether acrylate / acrylonitrile / allylamine / hydroxyethyl acrylate copolymer is 0.3-1% of the mass of the boron powder, the mass of the epoxy resin is 2-3% of the mass of the boron powder, and the mass of the diethylenetriamine is 0.15-0.4% of the mass of the boron powder.

The invention relates to a sealing ring material and a preparation method thereof, and belongs to the technical field of polymer composite materials. The sealing ring material is prepared from the following components in parts by weight: 100 parts of nitrile rubber, 15 to 20 parts of chloroprene rubber, 10 to 15 parts of a CNT composite enhancer, 12 to 17 parts of reinforcing filler, 1.9 to 2.3 parts of a vulcanizing agent, 1 to 1.4 parts of an accelerant, 2 to 3 parts of an anti-aging agent and 2.2 to 2.8 parts of an anti-sticking agent, the CNT composite reinforcer is prepared by the following steps: carrying out addition reaction on alkyl mercaptan and diallylamine to obtain an intermediate 1, carrying out substitution on allyl iodide and secondary amine in the intermediate 1 to obtain an intermediate 2, carrying out quaternization reaction on 3-chloropropyltrimethoxysilane and the intermediate 2 to obtain a modifier, and finally loading the modifier on the surface of a carbon nanotube. The CNT composite reinforcer is introduced, so that the obdurability of the material is synergistically improved, and the material is endowed with excellent permanent compression deformation resistance and creep resistance.

The present invention relates to the technical field of inks, and discloses a degradable water-based ink and a preparation method thereof. In the present invention, a DCPD petroleum resin reacts with 4-mercaptohydrocinnamic acid through a thiol-ene addition reaction to obtain a modified petroleum-based resin. Using diallylamine, mercaptopropyltriethoxysilane, 1,6-dibromohexane, epichlorohydrin, etc. as raw materials, through a thiol-ene addition reaction, a substitution reaction, and a quaternization reaction in sequence, a polysilane epoxy-based gemini quaternary ammonium salt is obtained. The epoxy group in the polysilane epoxy-based gemini quaternary ammonium salt undergoes a ring-opening reaction with the hydroxyl group in polyvinyl alcohol to obtain modified polyvinyl alcohol. Finally, the modified petroleum-based resin, modified polyvinyl alcohol, polylactic acid, defoamer, dispersant, etc. are stirred and mixed evenly to obtain a degradable water-based ink. The degradable water-based ink prepared in the present invention is experimentally proven to have good antibacterial properties and adhesion.

The invention discloses a drug controlled release layer-by-layer self-assembly nano hydrogel boron carrying agent and application thereof, and belongs to the technical field of biomedicine. According to the method, calcium alginate nano-particles, calcium alginate nano-particles modified by polyallylamine hydrochloride, calcium alginate nano-particles modified by boric acid and polyallylamine hydrochloride, and calcium alginate nano-particles modified by polyallylamine hydrochloride, boric acid and polyallylamine hydrochloride are prepared in sequence. According to the invention, boric acid is loaded into the layer-by-layer self-assembled nano hydrogel material, so that intelligent controlled release can be realized, and the material is applied to boron neutron capture therapy. The material has good water solubility, good dispersity in an aqueous solution, small size and uniform particle size. The material also has good biocompatibility, intelligent and accurate release control is realized, and important technical progress is brought to cancer treatment.

The invention discloses a quorum sensing inhibitor loaded nano composite material and a preparation method and application thereof, and belongs to the field of biomedical materials.The preparation method comprises the steps that MnO2 nano particles are dispersed in a polyallylamine hydrochloride aqueous solution, and a MnO2 / PAH compound is obtained; dispersing the MnO2 / PAH compound in a polyacrylic acid aqueous solution for secondary modification; the modified nano particles are mixed with a MgCl2 solution, ultrasonic treatment and aging treatment are carried out, and a MnO2-Mg compound is obtained; platinum nanoparticles grow in situ and are loaded on the surface of the MnO2-Mg compound by adopting a chemical reduction method to obtain MnO2-Mg / Pt; and loading the BBF on the MnO2-Mg / Pt to obtain the MnO2-Mg / Pt-coated BBF nano composite material. The invention aims to enhance the chemical kinetics efficiency and cooperate with the biomembrane inhibition effect to realize efficient treatment of periodontitis.

A geopolymer precursor includes an alkaline reactive solid material containing aluminum, silicon, and oxygen, and a fluid loss control material having an ionic stability property that has a first value in water and a second value in a 3M solution of NaOH, wherein a ratio of the second value to the first value is in a range of 0.5 to 2.0. The fluid loss control material may be, or may include a crosslinked polymer, which may include a reaction product of one or more of acrylamide, 2-acrylamido-2-methyl propane sulfonic acid, N,N‑dimethylacrylamide, N,N‑diethylacrylamide, vinyl acetate, or another monomer, and a crosslinker including one or more of methylene bisacrylamide, triallyl amine, pentaerythritol allyl ether, triallyl-triazine-trione, or another material. The geopolymer precursor may include an activator, an alkaline solution having pH of at least about 9, or both.

The invention relates to the technical field of ink, and discloses degradable water-based ink and a preparation method thereof.The degradable water-based ink is characterized in that DCPD petroleum resin and 4-mercapto hydrocinnamic acid are subjected to a mercapto-ene addition reaction, and modified petroleum-based resin is obtained; diallylamine, mercaptopropyltriethoxysilane, 1, 6-dibromohexane, epichlorohydrin and the like are used as raw materials, a sulfydryl-alkene addition reaction, a substitution reaction and a quaternization reaction are sequentially performed to obtain a polysilane epoxy gemini quaternary ammonium salt, an epoxy group in the polysilane epoxy gemini quaternary ammonium salt and a hydroxyl group in polyvinyl alcohol are subjected to a ring-opening reaction, and the polysilane epoxy gemini quaternary ammonium salt is obtained. The degradable water-based ink is prepared by uniformly stirring and mixing modified petroleum-based resin, modified polyvinyl alcohol and polylactic acid to obtain modified petroleum-based resin, uniformly stirring and mixing the modified petroleum-based resin, the modified polyvinyl alcohol, polylactic acid, a defoaming agent, a dispersing agent and the like to obtain the degradable water-based ink, and tests prove that the degradable water-based ink prepared by the preparation method has relatively good antibacterial performance and adhesive force.

The invention relates to the field of anti-swelling hydrogel materials, and discloses a preparation method of anti-swelling hydrogel capable of rapidly gelling. Polyallylamine hydrochloride and acrylate are used as raw materials, persulfate is used as an initiator, N, N '-methylenebisacrylamide is used as a cross-linking agent, preparation of a polymer is realized by adopting a free radical polymerization method, construction of an elastic network is realized by utilizing electrostatic interaction and chemical cross-linking, and the dosage of the raw materials is optimized. Finally, the anti-swelling hydrogel capable of rapidly gelling is prepared, the gel forming speed is high, and water molecules are difficult to permeate into a network due to the compactness of the cross-linked network, so that the volume change of the hydrogel after water absorption is reduced, and the gel has anti-swelling performance.

The invention discloses an acrylate fluoride-free waterproof agent and a preparation method thereof. The fluoride-free waterproof agent is prepared from the following raw materials in parts by weight: 40-50 parts of a long-chain alkyl acrylate main monomer, 5-15 parts of a hard monomer, 1-5 parts of a first functional monomer, 5-25 parts of a second functional monomer, 2-5 parts of a surfactant, 1-2 parts of an initiator and 100-200 parts of water, and the number of carbon atoms of the long-chain alkyl acrylate main monomer is 8 or more. The hard monomer at least comprises methyl methacrylate, the first functional monomer is unsaturated organic acid containing double bonds, and the second functional monomer comprises an allylamine compound and at least one aromatic vinyl compound selected from vinyl phenol and vinyl aniline. The acrylate fluoride-free waterproof agent disclosed by the invention has an excellent waterproof effect and washing resistance, and also has a soft hand feeling.

The invention discloses a preparation method of plant-based polyester fibers, and relates to the technical field of high polymer materials. When the plant-based polyester fiber is prepared, firstly, phosphorus-modified dopamine is synthesized by taking dopamine hydrochloride and sodium hypophosphite as raw materials; carrying out copolymerization on the phosphorus-modified dopamine, terephthalic acid, ricinoleic acid and 1, 3-propylene glycol to prepare modified plant-based polyester; the preparation method comprises the following steps: synthesizing 2-bornyl-4, 6-dichloro-1, 3, 5-triazine from aminated carbon nanotubes, further synthesizing 2-bornyl-4, 6-dichloro-1, 3, 5-triazine from L-borneol and 2, 4, 6-trichloro-1, 3, 5-triazine, reacting the 2-bornyl-4, 6-dichloro-1, 3, 5-triazine with the aminated carbon nanotubes, and modifying with allylamine to obtain modified carbon nanotubes; finally, the modified plant-based polyester, the modified carbon nanotubes and auxiliaries are subjected to blending extrusion, melt spinning and treatment through copper nitrate and ascorbic acid, and the plant-based polyester fiber is prepared. The plant-based polyester fiber prepared by the invention has excellent antibacterial property, flame retardant property and mechanical property.

An aspect of the present application provides a CMP polishing liquid for polishing polysilicon, the CMP polishing liquid containing abrasive grains and a cationic polymer, the cationic polymer including at least one selected from the group consisting of a polymer A having a main chain including a nitrogen atom and a carbon atom and a hydroxyl group bonded to the carbon atom and an allylamine polymer B. Another aspect of the present application provides a polishing method including a step of polishing a polishing target material using the CMP polishing liquid.

The surface treatment agent is designed to improve adhesion to a coating film. This agent contains at least one metal component (A) selected from the group consisting of zirconium, titanium, and hafnium, as well as an alkyldiallylamine polymer (C). The metal component (A) has a content ranging from 10 ppm to 10,000 ppm by mass, in terms of metal element, relative to the total mass of the surface treatment agent. Furthermore, the alkyldiallylamine polymer (C) includes a segment with a heterocyclic structure represented by formula (1a) or (1b).

The invention belongs to the technical field of organic synthesis, and discloses a synthesis method of 5-allylamino formyl isophthalic acid. According to the method, 1, 3, 5-benzene tricarboxylic acid, a condensing agent, an activating agent, triethylamine and allylamine are taken as raw materials, after full reaction, thin layer chromatography detection and column chromatography separation are performed, and the 5-allylaminoformyl isophthalic acid is obtained. The obtained product can be used as a high-adaptation functional monomer of a polyhydroxy structure template molecule in a molecular imprinting technology or a ligand in an MOF (Metal Organic Framework) material and the like.

The application relates to a preparation method of a biosensor. The application relates to a preparation method of a portable pesticide detection biosensor based on acetylcholinesterase (AChE)@poly(allylamine hydrochloride)-hydrogen bond organic framework (PAH-HOF) and application of the biosensor in on-site rapid chlorpyrifos detection, and belongs to the technical field of biosensors. According to the method, AChE is combined with poly(allylamine hydrochloride) (PAH) to change the surface charge and promote self-assembly of the AChE and the hydrogen bond organic framework (HOF), so that an AChE@PAH-HOF composite material with high catalytic activity, high embedding rate and high stability is formed; then the material is integrated into a water-retaining glycerol-sodium alginate hydrogel (G-SA) matrix to construct a disc-shaped sensor. The sensor can be attached to the surface of plants and used for long-term in-situ monitoring of organophosphorus pesticides. In combination with an image processing algorithm, the system realizes accurate tracking of the chlorpyrifos degradation process on the surface of tomato plants, and the detection limit reaches 1 ng / mL. The application provides non-invasive and low-cost technical support for crop health management and sustainable precision agriculture.

The application discloses a kind of using cobalt catalyst by unreported double migration coupling strategy, realizes migration asymmetric nitrogen hetero Nozaki-Hiyama-Kishi (aza-NHK) reaction, and the selective preparation α-chiral (E)-allyl amine starting from simple and easy to obtain ortho halogen phenyl ethylene or corresponding E / Z-alkyl bromide or its mixture belongs to the field of organic chemistry and medicinal chemistry.The application under the action of metal cobalt source, ligand, organic additive, inorganic additive etc., makes cyclic sulfonamide and ortho alkenyl substituted aryl halide or alkenyl halide react in organic solvent, to obtain a series of polysubstituted olefins with excellent regioselectivity, stereoselectivity and good yield, which can be used as active drug molecules and important synthetic intermediates.The application uses cheap transition metal cobalt as catalyst, and uses ortho alkenyl substituted aryl iodine and cyclic sulfonamide as raw material, and the reaction condition is warm, simple operation, and good functional group compatibility.

The application discloses a kind of S-delta-substituted caprolactam chemical / enzyme series preparation method, and the specific preparation method is: 1-substituted high allyl amine occurs dynamic kinetic resolution reaction with acrylic ester compound under the catalysis of alkaline protease (special treatment) and generates S-acryl (1-substituted high allyl) amine, then the product occurs intramolecular olefin metathesis under the catalysis of Grubbs reagent and finally generates S-delta-substituted caprolactam shown in formula (1), wherein, substituent R is phenyl, halogenated phenyl or C2-C12 alkyl.The application has mild reaction condition, is conducive to reducing the equipment requirement of preparation process, improves synthesis safety and economy;Secondly, the reaction course of the method is simple, and single configuration S-delta-substituted caprolactam can be obtained by one-pot reaction, with very high atom economy.