41 results about "Phenyltriazine" patented technology

The invention discloses a composite sewage treatment agent and a preparation method thereof, and belongs to the technical field of sewage treatment. The composite sewage treatment agent disclosed by the invention is prepared from the following raw material components in parts by mass: 10 to 12 parts of starch-based flocculating agent, 0.8 to 1.2 parts of modified bimetallic biochar and 0.7 to 0.8 part of 2, 4, 6-tri (4-ethynyl phenyl)-1, 3, 5-triazine, wherein the starch flocculant is obtained by carrying out graft copolymerization on an active monomer and amylopectin and then introducing carbazole through Ullmann reaction, and the active monomer at least comprises acrylamide, methacryloyloxyethyl trimethyl ammonium chloride, acryloyloxyethyl trimethyl ammonium chloride and N, N-diallylaniline; the modified bimetal biochar is prepared from bimetal biochar modified by 3-bromopropyl trimethoxy silane, and the modified bimetal biochar is prepared from the modified bimetal biochar modified by the 3-bromopropyl trimethoxy silane modified bimetal biochar. The bimetallic biochar is obtained by loading nano-iron and molybdenum disulfide in two steps through a calcination method and a hydrothermal method by taking straw biomass as a raw material.

The application discloses an alkali ion type covalent organic framework material and a preparation method and application thereof, wherein 2,4,6-tris(4-formylphenyl)-1,3,5-triazine, 1,4-diisocyanobenzene and 2-aminopyridine are used as building units, a covalent organic framework containing pyrimidine is obtained through a condensation reaction, and then a quaternary ammonium reaction and an ion exchange reaction are sequentially performed to obtain the alkali ion type covalent organic framework.The alkali ion type covalent organic framework material prepared by the application has rich alkali sites, developed pore structures and good chemical stability, exhibits good catalytic performance as a catalyst for one-pot preparation of dimethyl carbonate from CO2, an epoxide compound and methanol, and also shows good cycle stability.

The invention discloses a TADF luminescent material and a preparation method thereof, and relates to the technical field of organic optoelectronics, the molecular structure of the material comprises a phenyl triazine derivative electron-deficient core as an electron acceptor and a carbazole or tert-butyl carbazole electron-rich group as an electron donor; an aggregation-induced emission mechanism is introduced into the thermally activated delayed fluorescence material, so that the aggregation-induced quenching problem of a traditional thermally activated delayed fluorescence material and the exciton annihilation effect under high brightness are effectively solved, and meanwhile, the defect that a traditional aggregation-induced emission molecule is low in electroluminescence efficiency is overcome; the material can be used for preparing a non-doped organic electroluminescent device, the process is simplified, the cost is reduced, and the material has application potential in the field of intelligent response materials.

The present application discloses a crystal form A of compound I 6-((5,6-diphenyl-1,2,4-triazine-3-yl)(isopropyl)amino)-N-(methylsulfonyl)hexanamide, a pharmaceutical composition comprising same, a use thereof and a preparation method therefor. The crystal form A of compound I of the present application has diffraction peaks in an X-ray powder diffraction pattern at least at the following diffraction angles 2θ: 9.50±0.2°, 11.05±0.2°, 15.54±0.2°, 16.23±0.2°, 18.23±0.2° and 22.13±0.2°. The crystal form A of compound I of the present application has the advantages of low hygroscopicity, good stability and the like, and has great significance for drug development.

Disclosed in the present application are a crystal form B of compound I (6-((5,6-diphenyl-1,2,4-triazin-3-yl)(isopropyl)amino)-N-(methylsulfonyl)hexanamide) and a pharmaceutical composition thereof, the use thereof and a preparation method therefor. The crystal form B of compound I in the present application at least has diffraction peaks at the following diffraction angles: 3.36±0.2°, 10.07±0.2°, 13.90±0.2°, 16.51±0.2°, 20.20±0.2° and 21.10±0.2° 2θ in the X-ray powder diffraction pattern thereof. The crystal form B of compound I in the present application has diffraction peaks in the X-ray powder diffraction pattern thereof at least at the following diffraction angles: 3.36±0.2°, 10.07±0.2°, 13.90±0.2°, 16.51±0.2°, 20.20±0.2° and 21.10±0.2° 2θ.

The present invention provides a non-conjugated polymer thermally excited delayed fluorescent material based on phenyl acridine and phenyl triazine substituents, which is a polymer obtained by polymerizing styrene with acridine substituents and styrene with phenyl triazine substituents as monomers. The material can reduce the triplet energy difference (ΔE ST ), which improves the fluorescence quantum yield (PLQY), improves the luminescence quality, and greatly improves the overall performance of the prepared thermally excited delayed fluorescence light-emitting device.

The invention relates to the technical field of medicines, and particularly provides application of a 6-(substituted pyridine-4-yl)-5-(substituted phenyl)-1, 2, 4-triazine compound derivative in preparation of an antidepressant drug. A cell experiment proves that the 6-(substituted pyridine-4-yl)-5-(substituted phenyl)-1, 2, 4-triazine compound is an antagonist of an adenosine 2A receptor, and a plurality of animal model experiments prove that the 6-(substituted pyridine-4-yl)-5-(substituted phenyl)-1, 2, 4-triazine compound has a relatively good treatment effect on a plurality of depression models. The compound has an application prospect of being used as an anti-depression treatment drug.

The invention relates to the technical field of super-hydrophobic coatings, and discloses a preparation method and application of a water-based anti-pollution coating. 40-70 parts by weight of an organosilicon triazine polymer, 100 parts by weight of a water-based epoxy resin emulsion, 10-30 parts by weight of nano-silica, 0.6-1 part by weight of an emulsifier, 32-40 parts by weight of a curing agent and the like are mixed and thermally cured to obtain the water-based anti-pollution coating. The water-based anti-pollution coating is obtained. The organic silicon triazine polymer and the epoxy resin are subjected to ring-opening curing reaction, and a heat-resistant phenyl siloxane structure and a phenyl triazine ring structure are bonded into a molecular chain of the epoxy resin, so that the heat resistance of the coating is improved. The organosilicone triazine polymer contains a plurality of long carbon chains with strong hydrophobicity and a phenyl siloxane structure, and is combined with the nano silicon dioxide, so that the coating is endowed with unique super-hydrophobic characteristic, strong anti-settling, waterproof and anti-pollution properties and excellent humidity and heat resistance.

The invention belongs to the technical field of chemical analysis, and particularly relates to a sample pretreatment technology and an analysis method of a triazine herbicide. The ionic type conjugated microporous polymer is formed by polymerization of 2, 4, 6-tri (4-ethynyl phenyl)-1, 3, 5-triazine (TEPT) and 1, 3-bis (4-bromophenyl)-1H-imidazole-3-onium bromide, and the ionic type conjugated microporous polymer is formed by polymerization of 1, 3-bis (4-bromophenyl)-1H-imidazole-3-onium bromide. The ionic type conjugated microporous polymer is prepared by cross coupling of 2, 4, 6-tri (4-ethynyl phenyl)-1, 3, 5-triazine (TEPT) and 1, 3-bis (4-bromophenyl)-1H-imidazole-3-onium bromide, and the ionic type conjugated microporous polymer is prepared by cross coupling of 2, 4, 6-tri (4-ethynyl phenyl)-1, 3, 5-triazine (TEPT) and 1, 3-bis (4-bromophenyl)-1H- The ionic conjugated microporous polymer is used for preparing a solid phase extraction (SPE) small column, an SPE-LC-MS / MS is established after the extraction condition is optimized, and the SPE-LC-MS / MS is used for selective enrichment and accurate detection of trace triazine herbicides in environmental water bodies (such as underground water and waste water) and food samples.

The invention relates to the technical field of polyurethane elastomers, and discloses a high-temperature-resistant polyurethane elastomer material and a preparation process thereof, 2, 4, 6-tri-(nitronaphthalene-phenyl)-[1, 3, 5] triazine obtained by reaction of 2, 4, 6-tri-(4-bromophenyl)-[1, 3, 5] triazine and 4-nitro-1-naphthol has excellent heat resistance; the aromatic naphthalene ring structure has a rigid structure, the molecular chain of the aromatic naphthalene ring structure is highly regular, and the polyurethane elastomer synthesized by the aromatic naphthalene ring structure has excellent dynamic performance; 2, 4, 6-tri-(aminonaphthalene-phenyl)-[1, 3, 5] triazine after reduction is utilized to prepare a chain extender containing diamine, and the chain extender and isocyanate generate carbamido, so that the tensile strength of the polyurethane elastomer is improved; through the synergistic effect of triazine, naphthalene ring and hydrogen bond, the prepared polyurethane elastomer is excellent in mechanical property and obvious in high temperature resistance advantage.

The application discloses a hydrazone chiral covalent organic framework material and a preparation method thereof. The preparation method comprises the following steps: under an inert atmosphere, a chiral hydrazine precursor with a tert-butyloxycarbonyl protection group is dissolved in an organic solvent together with 2,4,6-tris(4-formylphenyl)-1,3,5-triazine, and then an aqueous acetic acid solution is added, and the mixture is reacted at 90-120 DEG C for 2-5 days; then, insoluble substances are collected, and after washing, drying and deprotection treatment, the hydrazone chiral covalent organic framework material is obtained. The hydrazone chiral covalent organic framework material prepared by the application is used as a heterogeneous catalyst for asymmetric reaction, and exhibits good catalytic effect and chiral selectivity, and also has good chemical stability; after the reaction, the catalyst can be separated and recovered through simple centrifugation or filtration, so that environmental pollution is effectively reduced, the cost is reduced, and the application prospect is good.

The present disclosure relates to the use of certain substituted phenyl triazinanes comprising a cyclopropylcarboxylic acid-based side chain, or agrochemically acceptable salts thereof, for controlling or preventing weed growth in plant growth areas of transgenic crop plants that are tolerant to PPO inhibiting herbicides. The disclosure also provides herbicide tolerant transgenic plants, seeds, cells, and plant parts containing the recombinant DNA molecules, as well as methods of using the same.

The present invention provides a luminescent compound containing a 9,9-coupled carbazole, whose Chinese name is 3,6-di-tert-butyl-9-(3,6-di-tert-butyl-1-(4-(4,6-diphenyl-1,3,5-triazinyl-2-yl)phenyl)-9-hydrocarbazole-9-yl)-1-(4-(4,6-diphenyl-1,3,5-triazinyl-2-yl)phenyl)-9-hydrocarbazole. The present invention also provides a method for preparing the luminescent compound containing a 9,9-coupled carbazole, by preparing an intermediate product, 9,9-coupled-1,1'-3,6-di-tert-butylcarbazole, and then preparing the target product. The target product obtained exhibits multi-channel luminescent properties in both solution and solid states.

The invention provides a method for preparing 2, 4, 6-tri (4 '-butoxy-2'-hydroxyphenyl)-triazine, which comprises the following steps: in the presence of an alkaline reagent, dissolving m-bromophenol and n-butyl bromide in a first solvent to carry out nucleophilic substitution reaction, and after the reaction is finished, carrying out post-treatment to obtain 1-bromo-3-butoxybenzene; magnesium chips and an initiator are dissolved in a second solvent for a reaction, then the 1-bromo-3-butoxybenzene is dropwise added for a Grignard reaction, and a 3-butoxybenzene Grignard reagent is obtained; dropwise adding boric acid ester into the 3-butoxybenzene Grignard reagent for reaction, and then adding an oxidizing agent for oxidation reaction to obtain 3-butoxyphenol; 3-butoxyphenol and cyanuric chloride are dissolved in a third solvent for a reaction, lewis acid is added for a Friedel-Crafts reaction, after the reaction is finished, aftertreatment is conducted, and the 2, 4, 6-tri (4 '-butoxy-2'-hydroxyphenyl)-triazine is obtained.The preparation method is lower in cost, higher in yield, high in product quality and easy to control.

The invention belongs to the technical field of phenolic resin, and particularly relates to a preparation method of toughened discoloration-resistant phenolic resin, a binder and application. The preparation method of the toughened discoloration-resistant phenolic resin comprises the following steps: reacting 2, 4-diamino-6-vinyl-S-triazine with a benzoyl chloride derivative to prepare a monoalkenyl phenyl triazine derivative; reacting unsaturated dianhydride with the nanocellulose crystal to obtain a double-bond modified nanocellulose crystal; taking a monoalkenyl phenyl triazine derivative and a monoalkenyl epoxy compound as surface modification raw materials, and carrying out in-situ graft polymerization on the double-bond modified nano cellulose crystal to obtain a modified nano cellulose crystal; in an inert atmosphere, phenol, a catalyst and a formaldehyde solution are added into a reaction kettle to be heated and mixed uniformly, a temperature rise reaction is performed, the modified nanocellulose crystals are added to be mixed uniformly, and the temperature rise reaction continues to be performed, so that the toughened discoloration-resistant phenolic resin is obtained and has excellent discoloration resistance and toughness.

The application discloses a kind of preparation methods of flame-retardant aging-resistant high-transparency polyurethane, the polyurethane is first with 2-amino-1,3-propanediol, 2-chloro-4,6-diphenyl-1,3,5-triazine, diphenyl phosphorochloridate and triphenylchlorosilane composite preparation DADT, then DADT is mixed with polyether polyol, isocyanate to obtain;The preparation method of the application is simple, the process is easy to control, the obtained polyurethane material limit oxygen index reaches 29.6%, meets commercial flame-retardant standard and reaches UL-94 V-0 flame-retardant grade;Material has excellent aging resistance, heat-oxygen tensile strength retention rate is 88.5%, heat-oxygen breaking elongation retention rate is 77.4%, and ultraviolet breaking elongation retention rate is 71.4%, can be applied to automobile ultraviolet protection diaphragm, flame-retardant filled foam, fire guide sign protection film and the like scene.

The invention discloses a bifunctional triazine covalent organic framework material, a solid-phase microextraction probe and application, and the bifunctional triazine covalent organic framework material is prepared from 2, 4, 6-tri (4-formyl-biphenyl-4-yl)-1, 3, 5-triazine, 5 '-(4-amino-3, 5-difluorophenyl)-3, 3', 5, 5 '-tetrafluoro-[1, 1': 3 ', 1'-triphenyl]-4, 4, 6-triazine-1, 3, 5-triazine-1, 3, 5 '-tetrafluoro-[1, 1': 3 ', 1'-triphenyl]-1, 3, 5 '-tetrafluoro-[1, 1': 3 ', 1 ''-triphenyl]-4, 4, 6-triazine-1, 3, 5]- The polymer is formed by polymerizing three monomers, namely 1, 4 ', 4'-diamine and diethyl phosphite. The TFP-COF disclosed by the invention is a porous material containing aromatic rings, fluorine atoms and nitrogen heteroatoms, and has a relatively large conjugated system and a plurality of recognition sites; the hydrophilicity and hydrophobicity of the COFs are adjusted through functionalization of the diethyl phosphite, the hydrophilicity is enhanced, the adsorption performance of the TFP-COF on medium and strong polarity analytes is enhanced, and then high-precision detection of the mycotoxins in a wide polarity range is achieved.

The present invention relates to a composition comprising a polyurethane; at least one UV absorber; at least one hindered amine light stabilizer; and at least one phenyltriazine having formula (A) as defined below. The invention also relates to a method for stabilizing a polyurethane, comprising the step of incorporating the at least one UV absorber, the at least one hindered amine light stabilizer, and the at least one phenyltriazine of formula (A) into the polyurethane; and to a mixture comprising the at least one UV absorber, the at least one hindered amine light stabilizer, and the at least one phenyltriazine of formula (A), which mixture prevents the degradation of polyurethanes by light, oxygen and / or heat as a stabilizer.

The application provides a high-efficiency thermally activated delayed fluorescence host material and a preparation method and application thereof, belongs to the technical field of organic photoelectric materials, and is obtained by combining 5,7-dihydro-7,7-dimethylindeno[2,1-b]carbazole and 2-(3-bromophenyl)-4,6-diphenyl-1,3,5-triazine, has the advantages of simple synthesis method, easily obtained raw materials, stable material structure, easy storage, and the like. The synthesized thermally activated delayed fluorescence host material is applied to an OLED device, the bromine atom attached to the triazine fragment enhances single-triplet state exciton conversion, improves high-efficiency energy transmission to a guest light-emitting material, and thus improves device efficiency. Compared with a traditional host material CBP, the application has obvious advantages, and thus has a wide application prospect and is optimistic, and is expected to be widely applied in the fields of flat panel display and solid-state lighting.

The present invention discloses a preparation method and application of a multi-coordinated covalent organic framework material, which belongs to the field of material preparation technology. The present invention utilizes 4,7-bis(4-aminophenyl)-α-methyl-1H-benzimidazole-2-methanol monomer and benzo[1,2-b:3,4-b':5,6-b']terthiophene-2,5,8-trialdehyde monomer or 2,4,6-tris(4-formaldehydephenyl)-1,3,5-triazine monomer to synthesize a novel multi-coordinated 2D COFs material with thorium adsorption and thorium-uranium ion separation selectivity by a solvent thermal method. The 2D COFs material prepared by the present invention has a large specific surface area, a regular one-dimensional open channel and abundant skeleton coordinated heteroatoms. Based on strong chemical coordination, the 2D COFs material has both ultrafast adsorption rate, high adsorption capacity and adsorption selectivity, and excellent recycling performance in the application of selective adsorption and separation of thorium.

This invention relates to the field of polyurethane elastomer technology, and discloses a high-temperature resistant polyurethane elastomer material and its preparation process. The 2,4,6-tri-(4-bromophenyl)-[1,3,5]triazine obtained by reacting 2,4,6-tri-(nitronaphthyl-phenyl)-[1,3,5]triazine with 4-nitro-1-naphthol exhibits excellent heat resistance. The aromatic naphthalene ring structure has a rigid structure and its molecular chain is highly regular, resulting in polyurethane elastomers synthesized from it exhibiting excellent dynamic properties. A chain extender containing diamine is prepared using the reduced 2,4,6-tri-(aminonaphthyl-phenyl)-[1,3,5]triazine, which reacts with isocyanate to form urea groups, thereby improving the tensile strength of the polyurethane elastomer. The synergistic effect of the triazine, naphthalene ring, and hydrogen bonds results in a polyurethane elastomer with excellent mechanical properties and significant high-temperature resistance.

Embodiments of the present disclosure provide a glass fiber reinforced polyamide material and a method for preparing thereof. The glass fiber reinforced polyamide material includes components in the following parts by weight: 48-99.8 parts of a polyamide resin, 0-50 parts of a glass fiber, 0.05-2 parts of a thermal stability additive, and 0.1-2 parts of other additives. The thermal stability additive is hydroxyphenyltriazine compounds.

The invention provides photoresist stripping liquid as well as a preparation method and application thereof, and belongs to the technical field of semiconductor manufacturing processes. The photoresist stripping liquid comprises the following raw materials in parts by weight: 20-75 parts of an alkyl ketone organic solvent, 5-30 parts of a sulfoxide organic solvent, 5-20 parts of an alcohol amine organic solvent and 0.1-5 parts of a functional additive, the functional additive is a 2, 4, 6-tri (4-phenyl)-1, 3, 5-triazine derivative and methyl 4-isopentenyloxycinnamate, and the functional additive is a 2, 4, 6-tri (4-phenyl)-1, 3, 5-triazine derivative and methyl 4-isopentenyloxycinnamate. According to the invention, the planar conjugation of the phenyl triazine derivative and the multi-claw anchoring effect of a functional group are utilized, and the long-chain hydrophobic effect of the methyl 4-isopentenyloxycinnamate is combined, so that the photoresist stripping liquid has targeted photoresist removal and multi-layer corrosion resistance in chip cleaning, and the problems that the surface photoresist is difficult to clean and the yield is low in chip production are solved.

The present application relates to the technical field of chemical medicine, and particularly to a diphenyltriazine compound, a preparation method therefor and a use thereof. The diphenyltriazine compound does not have a PGI2 backbone, has strong selectivity and affinity for a PGI2 receptor, and has good target selectivity as compared with a PGI2 analogue. Experiments have proven that the in-vivo efficacy of the compound is superior to that of Selexipag, and the toxicity of the compound is significantly lower than that of Selexipag. Therefore, the compound can be used as a pulmonary arterial hypertension therapeutic drug having a higher clinical value and development prospect.

The invention discloses a preparation method of flame-retardant anti-aging high-transparency polyurethane, which comprises the following steps: firstly, compounding 2-amino-1, 3-propylene glycol, 2-chloro-4, 6-diphenyl-1, 3, 5-triazine, diphenyl hypophosphorous chloride and triphenylchlorosilane to prepare DADT (diphenyldisiloxane), and then mixing the DADT with polyether polyol and isocyanate to prepare the flame-retardant anti-aging high-transparency polyurethane. The preparation method is simple, the process is easy to control, the limit oxygen index of the obtained polyurethane material reaches 29.6%, the commercial flame retardant standard is met, and the UL-94 V-0 flame retardant grade is reached; the material has excellent aging resistance, the thermo-oxidative tensile strength retention rate is 88.5%, the thermo-oxidative elongation at break retention rate is 77.4%, the anti-ultraviolet elongation at break retention rate is 71.4%, and the material can be applied to scenes such as automobile anti-ultraviolet diaphragms, flame-retardant filling foam and fire-fighting guide sign protective films.

The application relates to the technical field of super-hydrophobic coating, and discloses a preparation method and application of a water-based anti-pollution coating. 40-70 parts by weight of a silicone triazine polymer, 100 parts by weight of a water-based epoxy resin emulsion, 10-30 parts by weight of nano-silicon dioxide, 0.6-1 part by weight of an emulsifier, 32-40 parts by weight of a curing agent and the like are mixed and heat-cured to obtain the water-based anti-pollution coating. The silicone triazine polymer and the epoxy resin are subjected to ring-opening curing reaction, the heat-resistant phenylsiloxane structure and the phenyl triazine ring structure are bonded to the molecular chain of the epoxy resin, and the heat resistance of the coating is improved. The silicone triazine polymer contains a plurality of long carbon chains with strong hydrophobicity and a phenylsiloxane structure, and is combined with the nano-silicon dioxide, so that the coating has unique super-hydrophobic properties, the anti-sedimentation, anti-water and anti-pollution performances are high, and the wet heat resistance is excellent.

The present invention relates to a use of a co-stabilizer of the formula (1) as defined below to further increase the stability against degradation induced by light of a synthetic polymer which is stabilized with a hydroxyphenyl triazine, and where the hydroxyphenyl triazine is different from the co-stabilizer of the formula (1).

This invention discloses a triazine-based fluorescent probe compound YJA, its preparation method, and its applications. The chemical name is 4'-(4,6-diphenyl-1,3,5-triazine-2-yl)-[1,1'-biphenyl]-4-yldiphenylphosphine ester, and the molecular formula is C2. 39 H 28 N3O2P. This invention prepares a novel triazine ring-based fluorescent probe, YJA, which exhibits advantages such as ultra-low detection limit (0.73 nM), rapid response, excellent selectivity, good pH stability (pH 4-11), and low cytotoxicity. It has been successfully applied to exogenous ONOO in HeLa cells. ‑ Fluorescence imaging and ONOO based on test strips ‑ Simple, visual, and rapid detection. The preparation method of this fluorescent probe is simple, uses readily available raw materials, and yields a white solid product that is easy to store. It has broad application prospects and can be mass-produced and applied.

The invention discloses a covalent organic framework material based on a triazanacoronene structure as well as a preparation method and application thereof, and belongs to the technical field of organic porous materials, the covalent organic framework material is synthesized from an amino monomer and an aldehyde monomer; wherein the amino monomer is 4, 4 ', 4' '-(3, 4, 7, 8, 11, 12-hexamethoxy benzo [lmn] phenanthroline [2, 1, 10, 9-defgh] [2, 8] phenanthroline-2, 6, 10-trimethylene) triphenylamine, and the amino monomer is 4, 4', 4 ''-(3, 4, 7, 8, 11, 12-hexamethoxy benzo [lmn] phenanthroline [2, 1, 10, 9-defgh] [2, 8] phenanthroline-2, 6, 10-trimethylene) triphenylamine; the aldehyde group monomer is one or more of 2, 4, 6-tris (4-aldehyde phenyl)-1, 3, 5-triazine, 1, 3, 5-tris (p-formyl phenyl) benzene, tris (4-formyl phenyl) amine, or tris (triazole) triazine aldehyde, benzotrithiophene aldehyde, terephthalaldehyde, 2, 5-dimethoxy terephthalaldehyde, 2, 5-bis (allyloxy) terephthalaldehyde and 2, 5-bis (propargyl) terephthalaldehyde. The covalent organic framework material based on the triazanaphthalene coronene structure provided by the invention has the advantages of high crystallinity, high specific surface area, high chemical property, high thermal stability and the like.

The application discloses a preparation method of phosphonate-modified acylhydrazone covalent organic polymer and application of the phosphonate-modified acylhydrazone covalent organic polymer in adsorbing and separating heavy rare earth ions, and belongs to the field of environmental protection. 2,4,6-tris(4-formylphenyl)-1,3,5-triazine and tetraethyl((2,5-di(hydrazine carbonyl)-1,4-phenylene)bis(oxy)bis(ethane-2,1-diyl))bis(phosphonate) are prepared into phosphonate-modified acylhydrazone covalent organic polymer through Schiff base reaction. The acylhydrazone covalent organic polymer is modified with phosphonate functional groups on a skeleton, and can be used for efficient adsorption and separation of heavy rare earth ions in water phase. The preparation method of the phosphonate-modified acylhydrazone covalent organic polymer is simple, has superior adsorption and separation performance for heavy rare earth ions, and is expected to be used as an efficient adsorbent for low-concentration wastewater of ion adsorption type rare earth ore in the south.