72 results about "Phthalaldehyde" patented technology

The invention provides a metallized film for a capacitor, a preparation method of the metallized film and the capacitor, and relates to the technical field of capacitor manufacturing. The preparation method of the metallized film comprises the following steps: preparing an inorganic reinforcing material from raw materials including 1, 4-phthalaldehyde, zirconium diboride and tetraethoxysilane; the preparation method comprises the following steps: preparing a modified polypropylene material from raw materials including 4, 4 '-diaminobiphenyl, triphenyl phosphate, an ethylene-1-octylene copolymer, polyethylene and polypropylene; raw materials including polyvinyl alcohol, a silane coupling agent, N-hydroxynaphthalimide trifluoromethanesulfonic acid, an inorganic reinforcing material and a modified polypropylene material are subjected to melt mixing, casting piece forming and two-way stretching, and a base film is obtained; applying a polyester coating on the base film, and carrying out irradiation treatment on the base film by adopting an electron beam and an ultraviolet light source to obtain a modified base film; a metal layer is formed on the modified base film through vacuum evaporation, and the metallized film is obtained. The metallized film obtained by the invention has good thermal stability and mechanical properties.

The invention relates to the technical field of polypeptide cyclization methods, in particular to a preparation method for constructing a phage display cyclopeptide library based on phthalic dicarboxaldehyde, which comprises the following steps: carrying out click chemical reaction on phthalic dicarboxaldehyde (OPA) and lysine and cysteine in an unprotected peptide sequence under a neutral or alkaline condition to form cyclopeptide; constructing a phage cyclic peptide library on the basis of the reaction property that the OPA molecule is efficiently biocompatible with sulfydryl and amino groups; a polypeptide library containing cysteine and lysine is displayed on a bacteriophage, the polypeptide library is cyclized by utilizing OPA (o-phthalaldehyde), and a cyclic peptide ligand with specific binding is screened out aiming at a target protein. In the strategy of performing polypeptide cyclization by using o-phthalaldehyde, it is found that o-phthalaldehyde has good reaction activity with sequence peptide containing cysteine and lysine, reaction conditions are simple and mild, and the o-phthalaldehyde has good biocompatibility. The reaction system does not need organic solvents or metal catalysts and is suitable for biological systems.

The invention provides an antibacterial cationic hydrogel adhesive and a preparation method thereof. The antibacterial cationic hydrogel adhesive is prepared from the following raw materials: polyphenol grafted epsilon-polylysine; the end group of the four-arm polyethylene glycol is phthalic dialdehyde; the polyphenol grafted epsilon-polylysine polymer has a structure as shown in a formula I or a formula II. The hydrogel adhesive contains epsilon-polylysine, so that the hydrogel adhesive can resist bacteria for a long time, and drug resistance is avoided; the grafted polyphenol functional group can effectively remove excessive free radicals and has an anti-oxidation function, so that wound healing is promoted, and tissue adhesiveness can be enhanced; and the tissue adhesiveness is provided by utilizing the rapid cross-linking gel formation of o-phthalaldehyde-amine.

The invention discloses o-phthalaldehyde disinfectant concentration detection test paper and a preparation method thereof.The preparation method comprises the steps that S1, a color developing agent, a color developing accelerant and a stabilizer are dissolved in purified water, a solution A is prepared, and the color developing agent accounts for 0.1-10 wt%, the color developing accelerant accounts for 0.1-10 wt%, and the stabilizer accounts for 0.1-10 wt%; s2, the filter paper is completely soaked in the liquid A for 1-2 min, and the filter paper is dried after being completely soaked; s3, uniformly dissolving a film-forming agent in purified water to prepare 0.1-10wt% of a solution B; s4, immersing the filter paper dried in the step S2 into a solution B, continuing for 10-30s, and then drying; and S5, cutting the dried filter paper, and pasting the cut filter paper on a substrate paperboard to obtain the phthalic dicarboxaldehyde disinfectant concentration detection test paper. The test paper for detecting the concentration of the o-phthalaldehyde disinfectant has the advantages that the validity period is as long as 2 years, the color development effect is stable, and the concentration of the o-phthalaldehyde disinfectant can be effectively and accurately reflected.

The invention relates to a production reaction device for preparing o-phthalaldehyde disinfectant in the field of stirring preparation equipment. When preparing the disinfectant, high-pressure airflow is used to compress and mix o-phthalaldehyde powder and diffuse and spray it out to generate atomized raw material powder and spray the atomized powder onto the inner wall of an atomizing mixing cylinder. At the same time, pure water is extracted by a submersible pump and sprayed onto the inner wall of the atomizing mixing cylinder through a spray cylinder, so that the inner wall of the atomizing mixing cylinder is wetted to generate a flowing water film, and atomized water droplets are generated by impact and rebound of a water column. With the rotation of the spray cylinder, the atomized powder is fully contacted and dissolved with the atomized water droplets and the flowing water film on the inner wall of the atomizing mixing cylinder, thereby improving the uniformity of contact between the o-phthalaldehyde raw material and the pure water, reducing the situation that powder agglomerates are generated when the raw material powder is concentratedly poured and contacts with the pure water, and reducing the time for dissolving and stirring.

The invention discloses a Pd-coated S-COF catalyst for a reaction of preparing styrene through phenylacetylene hydrogenation as well as preparation and application of the Pd-coated S-COF catalyst. The Pd (at) S-COF catalyst comprises a covalent organic framework carrier S-COF and Pd nanoparticles, the covalent organic framework carrier S-COF is an imine bonded covalent organic framework prepared by using 2, 4, 6-tri (4-aminophenyl)-1, 3, 5-triazine and 2, 5-dimethyl thioether-1, 4-phthalaldehyde as raw materials, and the Pd nanoparticles are used for modifying Pd nanoparticles. The Pd nano-particles are encapsulated in pore channels of the S-COF and are loaded on the surface of the S-COF. The invention provides an application of the Pd-coated S-COF catalyst in a reaction for preparing styrene through phenylacetylene hydrogenation, and high phenylacetylene conversion rate and high styrene selectivity can be realized within a short reaction time.

The invention provides a polyethylene glycol derivative. The polyethylene glycol derivative comprises a main chain with a structure as shown in a formula (IIa) and an end group with a structure as shown in a formula (IIb). According to the invention, hydroxyl and carboxyl of polyethylene glycol are directly subjected to esterification reaction to generate a polyethylene glycol derivative of which the end group is provided with o-phthalaldehyde, and finally the polyethylene glycol derivative and polyethylene glycol of which the end group is provided with amino form the chemical crosslinking hydrogel. Due to the introduction of ester bonds, the degradation time of the hydrogel is shortened, the gelling rate of the hydrogel is increased, and meanwhile, the hydrogel is high in adhesion performance, simple in preparation process and suitable for large-scale production.

The invention relates to the technical field of carbon material preparation, in particular to phenolic resin-based porous carbon and a preparation method thereof. The core of the preparation method of the phenolic resin-based porous carbon is that the mass ratio of phenolic aldehyde to phenolic aldehyde is optimized (1: (1-1.2)) to ensure sufficient crosslinking, and an amine catalyst is selected to reduce metal residues; meanwhile, terephthalaldehyde is introduced as a cross-linking accelerant, so that the bridging density and thermal stability of a resin network are effectively enhanced, and structural collapse is inhibited in subsequent carbonization; a sectional type carbonization process is further adopted, and the carbon skeleton is preserved by controlling the heating rate. According to the method, the carbonization yield is finally and successfully improved to 58% or above (improved by 15%-20% compared with that of a traditional method), the ash content is remarkably reduced (smaller than or equal to 0.2%), and an excellent material with a small mesoporous structure (the average pore diameter ranges from 2 nm to 10 nm) and a high specific surface area (larger than or equal to 1500 m < 2 > / g) is obtained.

The invention provides a double-layer polyethylene film with antibacterial activity. The invention discloses a rare earth / chitin composite material which is prepared from the following materials in parts by mass: 8 to 15 parts of chitosan, 2 to 7 parts of sodium periodate, 2 to 6 parts of polyethylene glycol, 1 to 4 parts of tributyl citrate, 2 to 6 parts of divinyl benzene, 3 to 9 parts of rare earth / chitin mixture, 4 to 9 parts of phthalaldehyde, 2 to 7 parts of bacteriostatic agent, 100 to 140 parts of low-density polyethylene, 3 to 9 parts of carbon fiber and 9 to 14 parts of carbon black. The rare earth substances and the chitin have bacteriostatic effects and can be synergistically matched after being mixed, so that the bacteriostatic effect of the whole polyethylene film is improved, meanwhile, the bacteriostatic agent is added into the polyethylene film, and the bacteriostatic agent contains chitosan and has very good composite bacteriostatic performance, so that the polyethylene film has a good antibacterial effect. The bacteriostatic agent has good compatibility between low-density polyethylene matrixes, the bacteriostatic performance of the finished film can be effectively improved, and the film is good in environmental protection property and excellent in comprehensive performance.

The invention discloses a preparation method of silicon dioxide composite thermal insulation aerogel. According to the invention, o-phthalaldehyde is used as a cross-linking agent to prepare the silicon dioxide composite thermal insulation aerogel with thermal insulation function, high skeleton strength and good adsorption capacity, and on the basis, sodium lauroyl glutamate is used as an air template to prepare the new silicon dioxide composite thermal insulation aerogel. On the premise that the whole gelation process is not damaged, the pore volume of the aerogel is increased, the separation effect in oil-water separation is further improved, the excellent flame-retardant capability is shown, and finally, the flame-retardant aerogel can be used for preparing oil-water separation oil-water separation oil-water separation oil-water separation oil-water separation oil-water separation oil-water separation oil-water separation. Chitosan is selected to be subjected to quaternization modification and then is directly compounded with hydrophobized silicon dioxide aerogel powder to obtain the improved silicon dioxide composite heat preservation type aerogel, the improved silicon dioxide composite heat preservation type aerogel not only has a more complex and slender framework structure, but also increases the overall surface area and surface roughness of the gel, and the adsorption capacity of the aerogel is further enhanced.

The invention relates to a test paper for detecting concentration of o-phthalaldehyde disinfectant in the field of detection technology. The test paper comprises a bottom layer made of a hydrophobic material; a microfluidic layer arranged on the bottom layer, and a plurality of functional areas are divided by hydrophobic boundaries; an intelligent response detection layer arranged on the microfluidic layer, and comprising temperature-responsive hydrogel microspheres and a signal enhancer; a self-calibration layer arranged on the microfluidic layer; a sample input area at one end of the test paper, and provided with a water absorption layer; and a color-variable indicating element arranged above the intelligent response detection layer, the self-calibration layer and an integrated colorimetric card. When in use, a sample is added to the sample input area and activated with ultraviolet light. After the reaction is completed, a result can be obtained by visual comparison or scanning with an intelligent device. The invention has the advantages of high sensitivity, strong specificity, simple operation, rapid detection, accurate results, and the like, and is suitable for rapid detection of o-phthalaldehyde concentration in multiple fields such as medical care, food safety, and environmental monitoring.

The invention belongs to the technical field of disinfectants and discloses a high-level disinfectant and a preparation method thereof.The high-level disinfectant is prepared from, by mass, 0.1%-3% of phthalic dicarboxaldehyde, 0.2%-0.8% of chelating agent, 2%-5% of penetrating agent, 0.3%-2% of modified starch, 1%-2% of acrylic polymer, 0.1%-0.3% of single-chain quaternary ammonium salt, 0.1%-0.3% of double-chain quaternary ammonium salt, 0.4%-5% of corrosion inhibitor and the balance purified water. Modified starch and polyacrylic acid are fully dissolved in a high-temperature stage, molecular chains are fully expanded, more active sites are exposed, and then the temperature is gradually reduced, so that the molecular chains are orderly arranged, a compact and uniform network structure is formed, and effective release of bactericidal components is ensured. Meanwhile, the single-chain quaternary ammonium salt and the double-chain quaternary ammonium salt are complementary through membrane destruction and internal destruction respectively and have a synergistic effect with the o-phthalaldehyde, so that the sterilization effect is remarkably improved.

Ortho-phthaldehyde is introduced as a versatile moiety to imbue ultraviolet-absorbing or visible chromophore compounds bearing this moiety with the capability to remain locally retained in the epidermis for days to weeks by virtue of a safe, efficient, and reagent-free reaction that bonds the ortho-phthalaldehyde moiety covalently to endogenous proteins in the stratum corneum of skin tissue by forming a phthalimidine linkage with primary aliphatic amines such as lysine and N-terminal residues, when applied topically on human or other mammalian skin from a suitable liquid, gel, or emulsion containing the ortho-phthalaldehyde compound with cosmetically acceptable alcohols, oils, and modifiers.

The invention relates to the technical field of o-phthalaldehyde disinfectants, and discloses o-phthalaldehyde disinfectant preparation equipment and a preparation method thereof.The o-phthalaldehyde disinfectant preparation equipment comprises a base, a processing barrel fixedly connected to the top end of the base, a liquid drainage pipe fixedly connected to the bottom end of the processing barrel in a penetrating mode, and a water injection pipe fixedly connected to the side wall of the processing barrel in a penetrating mode. A gear is driven by a toothed plate to intermittently rotate, so that the gear controls a baffle through a special-shaped plate to intermittently seal an atomizing mixing barrel, and a mixed solution in the atomizing mixing barrel intermittently flows into a connecting barrel; the problem that the solution in the atomization mixing cylinder cannot flow completely in the process of flowing into the connecting cylinder at a time is avoided, meanwhile, the content of the mixed solution flowing into the connecting cylinder every time is controlled through the concentration detection controller, and then the concentration of the phthalic dicarboxaldehyde disinfectant can be controlled according to needs; furthermore, the flexibility of preparing the phthalic dicarboxaldehyde disinfectant by the equipment is improved.

The invention belongs to the field of synthesis and preparation of Schiff base single crystals, and particularly relates to a p-xylylene-bis (4-amino-3-methylphenol) Schiff base single crystal and a preparation method thereof. The p-xylylene-bis (4-amino-3-methylphenol) Schiff base single crystal is a Schiff base formed by condensation of one molecule of p-phthalaldehyde and two molecules of 4-amino-3-methylphenol, and is a completely symmetrical bis-Schiff base, and the molecular structural formula of the p-xylylene-bis (4-amino-3-methylphenol) Schiff base single crystal is C22H20N2O2. The compound has good optical performance, can be used as a reaction intermediate product for synthesis of epoxy resin, and has important significance for research of high-thermal-conductivity epoxy resin; and the new single crystal can show excellent photoelectric properties, thermal stability or magnetism, and promotes the innovation of photoelectric devices or spintronics devices.

This invention relates to a method for preparing a β-cyclodextrin functionalized covalent organic framework composite material. The method involves an aldehyde-imine condensation reaction between the aldehyde groups on 2,3,4-trihydroxybenzaldehyde and p-phthalaldehyde and the amino group on hepta(6-amino-6-deoxy)betacyclodextrin to construct a β-CD-COF layer. This one-step method produces a β-cyclodextrin covalent organic framework composite material that exhibits excellent enrichment capacity for phosphopeptides, facilitating purification and extraction. It also shows promising application prospects in mass spectrometry detection and exosome separation.

The invention discloses an imine type COFs (Covalent Organic Frameworks) material for adsorbing gold as well as a preparation method and application thereof, and belongs to the technical field of precious metal recovery. The preparation method specifically comprises the following steps: (1) mixing terephthalaldehyde and acetic acid, and stirring to obtain a suspension; (2) mixing N1, N1 '-(1, 4-phenylene) bis (N1-(4-aminophenyl) benzene-1, 4-diamine and deionized water, dropwise adding the mixture into the suspension, and stirring the mixture; and (3) after the reaction is finished, collecting the generated precipitate, washing and drying to obtain the product. The Schiff base type COFs material with high thermal stability, high specific surface area and good crystallinity is synthesized by pre-activating an aldehyde monomer and an amine monomer with acetic acid in a room-temperature aqueous solution by utilizing the oxidation resistance characteristic of hydroxyl and the dynamic repairing capacity of an imine bond, and the adsorption material has the advantages of high adsorption capacity, high stability and high accuracy, and can be used for preparing the COFs material with high specific surface area and good crystallinity. And the preparation method is green, simple, convenient, universal and efficient, and realizes accurate adsorption of single metal ions under the coexistence of multiple metal ions.

The application belongs to the technical field of ship coating, and particularly relates to a self-repairing ship antifouling coating and a preparation method thereof. 2+ The preparation steps comprise the following steps: polyether amine and 1-pyrene butyric acid are reacted in an ethanol and water mixed solvent to obtain pyrene-based hyperbranched polyether amine; the pyrene-based hyperbranched polyether amine is reacted with p-phthalaldehyde modified by 2,6-diaminopyridine to form a dynamic polymer; a complex solution of ethylenediaminetetraacetic acid and Mg 2+ is added to the dynamic polymer to perform coordination complexation, and then a mixed solution is obtained; then, zinc oxide, BYK-333, Optifilm-400 and fumed silica are sequentially added to the mixed solution to obtain a multi-component mixed solution; after the multi-component mixed solution is dispersed, vacuum concentration is performed to obtain a self-repairing ship antifouling coating with a solid content of 45±5 wt%. The coating prepared by the method has good self-repairing and antifouling properties.

A method for measuring the concentration of ortho-phthalaldehyde (OPA) in a sample is provided. The method involves the use of a spectrophotometer to measure the absorbance of OPA at a specific wavelength, and the use of a standard curve to convert the change in absorbance value with temperature (slope) to a concentration value. The method is specific (selective), simple, rapid, and highly accurate, making it suitable for use in a variety of applications, such as the monitoring of OPA concentrations in disinfection / sterilization industrial settings.

The invention relates to an o-phthalaldehyde disinfectant. The o-phthalaldehyde disinfectant comprises the following components in percentage by weight: 0.1-1 wt% of o-phthalaldehyde; 10 to 30 weight percent of polybasic acid salt; 0.01 to 0.05 wt% of an antioxidant; 0.005 to 0.05 wt% of a polymerization inhibitor; 0.1 to 0.5 wt% of a slow release agent; and the balance of water. The o-phthalaldehyde disinfectant disclosed by the invention can effectively prevent grey dyeing, is short in sterilization time and is suitable for high-level disinfection and sterilization of medical instruments.

The application discloses a synthesis method of o-phthalaldehyde. O-xylene, a halogenated reagent and an organic solvent are mixed, and under ultraviolet light irradiation, a bromination product with different bromination degrees is generated by reaction; water is added into the reaction liquid, and the reaction is continuously carried out; after the reaction is completed, the organic solvent and water are removed by evaporation, and a crude ɑ, ɑ, ɑ', ɑ'-tetra-brominated o-xylene product is obtained; the crude product is recrystallized to obtain ɑ, ɑ, ɑ', ɑ'-tetra-brominated o-xylene product; and the ɑ, ɑ, ɑ', ɑ'-tetra-brominated o-xylene is hydrolyzed to obtain o-phthalaldehyde. The synthesis method optimizes the bromination and hydrolysis process, and by adding appropriate water in the o-xylene bromination process, the yield of the final product o-phthalaldehyde is improved.

The application provides a high-dispersibility water-based covalent organic framework soil modifier and application thereof in saline-alkali soil treatment. 2 The porous covalent organic framework material is synthesized from p-phthalaldehyde and sulfonated modified tri(4-aminophenyl)amine monomers; and a surfactant and / or a stabilizer are further added. The porous covalent organic framework material is synthesized from p-phthalaldehyde and sulfonated modified tri(4-aminophenyl)amine monomers, in-situ condensation is performed, and sulfonic acid groups are uniformly introduced, so that the hydrophilicity is improved, good adsorption capacity can be maintained in subsequent drip irrigation, and the nanoscale water dispersion liquid is prepared through subsequent high-pressure homogenization process.

The present invention provides a reprocessable bio-based cross-linked polyamide and a preparation method thereof, belonging to the technical field of high molecular polymers. The present invention can obtain an amino-terminated prepolymer by first prepolymerizing a linear diamine and phthalaldehyde, and then polymerizing it with trimethyl citrate, which is conducive to the full completion of the reaction, so that the imine bond is introduced into the polymer, so that the cross-linked polyamide has reprocessability, self-healing and degradability; the method provided by the present invention is simple to operate, and does not require the addition of organic solvents and highly toxic catalysts, and the process cost is low and more environmentally friendly. The results of the examples show that the polyamide prepared by the present invention has a tensile strength of >18MPa; elongation at break >10%; melting temperature >98.6°C; 20°C < glass transition temperature <60°C; thermal decomposition 5% temperature >260°C; and mechanical property retention rate of repeated processing >85%.

The present invention relates to disinfection technology, and particularly to a quality control technology for o-phthalaldehyde disinfectant solution. A rapid detection indicator card impregnation composition for o-phthalaldehyde disinfectant solution, which comprises the following in mass percentages: stabilizer: 1% - 10%; chelating agent: 5% - 20%; neutralizing agent: 0.1% - 2%; chromogenic agent: 0.1% - 20%; chromogenic accelerator: 1% - 4%; the balance is pure water. After impregnating filter paper with the composition and drying it, it is pasted on white plastic paper with double-sided tape and compacted to form the rapid detection indicator card. The indicator card of the present invention has more stable, obvious and clear color development, rapid detection and more reliable results.

The present invention provides an analytical method for thiol compounds, comprising: 1) dissolving standard substances of various thiol compounds in an aqueous solution with a pH of 10-12, and derivatizing them with 2,4,6-trifluorobenzylamine and o-phthalaldehyde to obtain standard substances of various derivatized thiol compounds. 19 FNMR signal spectrum; 2) dissolving the thiol compound to be tested in an aqueous solution with a pH of 10-12, and derivatizing it with 2,4,6-trifluorobenzylamine and o-phthalaldehyde to obtain the nuclear magnetic resonance of each derivatized thiol compound to be tested 19 FNMR signal spectrum; 3) superimposing and comparing the two spectra to identify the thiol compound to be tested; at the same time, the product after derivatization can be 19 The relationship between the ortho or para peak area and the concentration of FNMR is quantified and mutually verified; the method of the invention is simple and easy to implement, can prepare and measure samples immediately, has high sensitivity and selectivity, can effectively avoid interference from other biological molecules, and can be used for qualitative and quantitative analysis of thiol compounds in biological systems.

Methods of constructing conjugates are disclosed. The preparation method comprises the following steps: reacting an amino-containing component and a thiol-containing component with o-phthalaldehyde in one step under a considerable molar ratio to generate a conjugate with a substituted or unsubstituted 1-thio-isoindole structure in the presence of an additive. The method provides an efficient and practical platform for constructing the biological activity modular primitive.

The invention relates to a metal organic framework siloxane self-repairing antifouling composite material and a preparation method and application thereof.The preparation method comprises the steps that multiple kinds of siloxane containing amino are mixed to obtain mixed amino silane, terephthalaldehyde, absolute ethyl alcohol and diluted hydrochloric acid are added into the mixed amino silane, and heating is conducted to obtain a siloxane prepolymer solution; dropwise adding a silver nitrate solution into a trimesic acid solution to react to generate a silver ion organic framework material; and finally, adding the silver ion organic framework material into the siloxane prepolymer solution, uniformly dispersing, heating and curing to obtain the metal organic framework siloxane self-repairing antifouling composite material. The material has excellent self-repairing capability, when the material is broken, the self-healing of a damaged area can be realized under a mild condition, and the original mechanical property and barrier function of the material can be recovered; the introduction of the silver ion organic framework material not only plays a reinforcing role, but also endows the composite material with potential antibacterial performance, and widens the application prospect of the composite material in the antifouling field.

The invention discloses a lithium ion battery diaphragm, a preparation method and a battery thereof, the lithium ion battery diaphragm comprises a base membrane and a coating layer coated on the single side surface of the base membrane, the coating layer comprises the following raw materials by mass: 0.6%-2% of polymer particles, 38%-39.4% of a binder, 42%-54% of a solvent, and 6%-18% of a dispersant; the polymer particles are prepared by polymerizing 2, 4-diamino-6-chloropyrimidine or 2, 4-diamino-6-fluoropyrimidine and terephthalaldehyde, so that collaborative optimization of thermal stability and wettability of the diaphragm is realized, and meanwhile, the cycling stability and rate discharge performance of a battery are improved.

The invention discloses a gel polymer electrolyte membrane for a lithium battery as well as a preparation method and application thereof, and belongs to the field of polymer electrolyte. The preparation method provided by the invention comprises the following steps: putting amino-terminated polyethylene glycol and phthalic dicarboxaldehyde into inert gas to react to obtain a first prepolymer; adding tetraethylene glycol dimethacrylate and a photoinitiator into the first prepolymer, reacting to obtain a second prepolymer, adding lithium salt into the second prepolymer, and uniformly mixing to obtain precursor slurry; and carrying out film coating treatment on the precursor slurry, and sequentially carrying out ultraviolet curing treatment and standing treatment after film coating to obtain the gel polymer electrolyte membrane. According to the invention, a dynamic imine bond network is constructed through o-phthalaldehyde and double-end amino polyethylene glycol, a three-dimensional ion transmission channel is constructed by using an ether oxygen branch chain of tetraethylene glycol dimethacrylate, and self-repairing is realized by combining spontaneous reversible recombination of an imine bond under environmental humidity; and the high ionic conductivity of the polymer film is ensured to meet the high-frequency charging and discharging requirements.

The invention discloses a post-column derivatization detection method of ethyl lauroyl arginate, which comprises the following steps: pre-treating food, extracting ethyl lauroyl arginate hydrochloride with an acetonitrile aqueous solution, filtering with an aqueous filter membrane, separating with a high performance liquid chromatography column, taking mercaptan and o-phthalaldehyde as derivatization reagents, and carrying out post-column derivatization detection on ethyl lauroyl arginate under an alkaline condition, so as to obtain the ethyl lauroyl arginate. And carrying out a derivative reaction to generate a fluorescent derivative, carrying out derivative fluorescence detection, and quantitatively determining the content of the ethyl lauroyl arginate hydrochloride. The method has the characteristics of rapidness, high sensitivity and low detection limit. The method is suitable for determination of trace ethyl lauroyl arginate hydrochloride in dairy products, fruit products, meat products, aquatic products, beverages or gum-based candies. And a detection method is provided for the detection of trace ethyl cinnamyl arginate hydrochloride.