29 results about "Diacetylene" patented technology

The application discloses a method for treating organic pollutant wastewater by using manganese monoxide-graphite diacetylene nano-confined catalytic material to activate persulfate, the method is to degrade and treat organic pollutant wastewater by using manganese monoxide-graphite diacetylene nano-confined catalytic material as a catalyst for activating persulfate, and the nano-confined catalytic material comprises graphite diacetylene nanosheets, and manganese monoxide nanoparticles are confined between the layered structures of the graphite diacetylene nanosheets.The method has the advantages of rich active sites, fast electron transfer and stable structure, so that the catalytic degradation system is not only high in efficiency, but also strong in adaptability, and shows good degradation effect on various organic pollutants, and has the advantages of simple process, convenient operation, high treatment efficiency, good removal effect, strong adaptability, green environmental protection and the like, and has important promoting significance for deep purification of organic pollutant wastewater.

The application discloses a method for treating antibiotic wastewater by using a graphdiyne / ferrous indium sulfide nanocomposite to activate persulfate, and the method is characterized by using the graphdiyne / ferrous indium sulfide nanocomposite as a catalyst to activate persulfate for degrading and treating antibiotic wastewater, wherein the graphdiyne / ferrous indium sulfide nanocomposite comprises ferrous indium sulfide nanoparticles, and the nanoparticles are loaded with graphdiyne nanosheets. The method for treating antibiotic wastewater by using the graphdiyne / ferrous indium sulfide nanocomposite to activate persulfate uses the graphdiyne / ferrous indium sulfide nanocomposite as a catalyst, wherein the nanocomposite has many reactive sites, high catalytic activity and good stability, can efficiently activate persulfate with a smaller amount of catalyst, can efficiently remove antibiotics in wastewater, and has the advantages of low cost, high treatment efficiency, good removal effect, green environmental protection and the like, and therefore, the method has important significance for effectively purifying antibiotic wastewater, has high use value and good application prospect.

The application provides a preparation method and device of a graphdiyne powder material, and the method comprises the following steps: under the action of microwaves, the graphdiyne powder is prepared through a solution homogeneous system and in combination with a flow continuous growth process. The application realizes the large-batch continuous preparation of the graphdiyne powder under the condition of no substrate by using the microwave method, and overcomes the technical difficulty that the graphdiyne powder is difficult to continuously mass-produce in a homogeneous solution. The reaction time is short, the yield is high, the operation is simple, and the two-dimensional graphdiyne nanosheet with uniform sheet diameter is prepared.

The invention provides a conductive agent precursor, an electrode plate and a battery, the conductive agent precursor comprises a 1, 3-butadiyne derivative, and the 1, 3-butadiyne derivative comprises aryl and / or aliphatic hydrocarbon. When the conductive agent precursor provided by the invention is applied to the electrode plate, the resistance of the electrode plate is relatively small, so that the impedance of the battery is relatively small.

This invention relates to a dual-responsive poly(diacetylene) hybrid nanozyme, its preparation, and its application, belonging to the field of pharmaceutical technology. The dual-responsive poly(diacetylene) hybrid nanozyme of this invention uses poly(4,6-diynyl sebacate) as a template polymer, wherein a metal oxide with Fenton-like catalytic activity is complexed and linked to the carboxyl group of the template polymer. The dual-responsiveness of the nanozyme to pH and reactive oxygen species in this invention enables the hybrid nanozyme to exhibit precisely regulated catalytic activity. In an acidic environment, the protonation of PDDA induces the nanozyme to self-assemble into fibrous aggregates, significantly enhancing its retention capacity in the stomach (especially at sites of inflammation). Acidic pH and elevated hydrogen peroxide levels jointly activate the catalytic antibacterial activity of the nanozyme, thereby achieving antibacterial and antitumor effects.

The invention discloses a diacetylene topological chemical reaction method which comprises the following steps: spin-coating a diacetylene solution on a substrate to form a coating film; and irradiating the coating film by adopting an infrared light source, and reacting to generate polydiacetylene. Compared with side reaction and degradation caused by the fact that high-energy rays enable the material to enter an electron excitation state and material fragmentation caused by severe spatial change of molecules under high polymerization, mid-infrared light vibration excitation in the method serves as a means capable of triggering molecular vibration under an electron ground state, and under the mild condition, the mid-infrared light can be used as a means capable of triggering molecular vibration under the electron ground state. Therefore, various bad effects generated in the electron excitation state can be avoided.

The application discloses a method for synthesizing (R)-( - )-1,3-butanediol by a one-step method of diketene, which uses a chiral ruthenium complex as a catalyst and a Bronsted acid as an assistant to make the diketene react by a one-step method under certain temperature and hydrogen pressure conditions to obtain (R)-( - )-1,3-butanediol. The method solves the problems of high cost, large catalyst consumption and difficult product separation in the prior art for preparing (R)-( - )-1,3-butanediol, and can asymmetrically hydrogenate the carbonyl group of the substrate diketene at low cost and with a small amount of catalyst, simultaneously reduces the ester group and opens the ring to obtain (R)-( - )-1,3-butanediol. The method has simple reaction operation and simple catalyst preparation, the yield of the target product and ee value are both above 98%, meanwhile, the catalyst can be repeatedly used, the cost is greatly reduced, and the method has the potential for industrial application.

The present disclosure relates to a polydiacetylene-based compound for detecting cyanide ions, a composition including the same, and a chemical sensor, and more particularly, to a polydiacetylene-based compound, which is a polymer of a self-assembly of diacetylene monomers represented by the following Chemical Formulas 1 and 2, a composition including the same, and a chemical sensor.(Chemical Formulas 1 and 2 are as defined in claim 1.)

The invention belongs to the technical field of wastewater treatment, and particularly relates to a heavy metal wastewater treatment agent and a preparation method thereof. The preparation method comprises the following steps: screening ionic rare earth tailings to obtain coarse-grained particles rich in quartz components, carrying out alkali fusion activation and hydrothermal crystallization to obtain analcime, grafting diethynyl to the surface of analcime by using a silane coupling agent, and finally carrying out a click reaction between alkynyl and azido to obtain the modified analcime. An azido Schiff base quaternary ammonium salt compound containing tertiary butyl, quaternary ammonium salt, Schiff base, nitrile group and a stereostructure heptyl ring is grafted on the surface of analcime, and the tertiary butyl, quaternary ammonium salt, organic silicon, triazole group and nitrile group on the surface of the analcime form a good hydrophilic and hydrophobic amphoteric structure, so that the surface activity of the analcime is effectively improved; heavy metal ions are promoted to approach the surface of the zeolite material, so that the heavy metal ion adsorption effect is improved.

The application provides a method for preparing beta-butyrolactone through asymmetric hydrogenation of diacetylene ketone, which is prepared through catalyzing asymmetric hydrogenation of diacetylene ketone under a hydrogen atmosphere by using a metal active component and a pyridine ring phosphine ligand as a catalyst. The method uses a hydroxyl-containing nitrogen heterocyclic phosphine ligand as a ligand, and a metal such as palladium, rhodium or ruthenium as an active metal, so that the conversion rate and selectivity of the reaction are improved, the stability of the catalyst is good, and the catalyst can be used multiple times. The synthesis route of the catalyst used in the method is short, the yield is high, the number of times of reusing is large, and the method has a good cost advantage.

The invention relates to a silicon-hydrogen-terminated silicon-containing aryne resin and a preparation method and application thereof, the structural formula of the silicon-hydrogen-terminated silicon-containing aryne resin is as follows: in the formula, R1 and R2 are respectively and independently CH3, CH2 = CH, H or phenyl; n is equal to 1-9. The preparation method comprises the following steps: firstly, carrying out Grignard reaction on 1, 3-diacetylene benzene and a Grignard reagent to obtain a compound 1 as shown in a formula I; carrying out polymerization reaction on the compound 1 and a compound 2 as shown in a formula II to obtain a compound 3 as shown in a formula III; and then carrying out reduction reaction on the compound 3 and lithium aluminum hydride to obtain the silicon-hydrogen-terminated silicon-containing aryne resin. Compared with the prior art, the silicon-hydrogen-terminated silicon-containing aryne resin prepared by the invention has excellent heat resistance, has extremely high thermal decomposition temperature of 5% of cured substance weight loss in nitrogen and air, has excellent processability and has an extremely wide processable temperature window.

The invention belongs to the technical field of ion exchange membranes, and provides a porous carbon material reinforced ion exchange membrane and a preparation method thereof. The Raman signal spectrum of the porous carbon material enhanced ion exchange membrane has a butadiyne signal peak at 2100 + / -100 cm < 1 >, and the preparation method comprises the following steps: step 1, dissolving ion exchange resin in a solvent, and uniformly stirring; 2, dissolving an organic functional precursor rich in terminal alkyne in the solution in the step 1, and uniformly stirring; 3, adding copper salt into the solution in the step 2, and stirring for reaction to obtain a membrane casting solution; step 4, casting the membrane casting solution into a membrane preparation mold, and carrying out heat treatment to remove the solvent, so as to obtain a membrane material; and 5, carrying out ion exchange on the membrane material to obtain the porous material enhanced ion exchange membrane. The porous carbon material enhanced ion exchange membrane is mild in synthesis condition and simple in process, and the obtained product is high in ionic conductivity, high in mechanical strength, low in swelling property and low in gas permeability.

An aminochalcone-diacetylene compound of Formula 1A:wherein R1 and R2 are independently selected from H and C1-C3 alkyl, A denotes a linkage connecting the chalcone and diacetylene units, m and n are independently integers in the range of 2 to 18, and the corresponding protonated form / ammonium salt of Formula 1B:wherein X is a counter anion. The disclosure further discloses the corresponding chromatic polydiacetylenes and polydiacetylenes-based sensors for detecting ammonia.

This pattern formation method comprises: a film formation step for attaching a diacetylene derivative-containing substance to a substrate to form a film of the diacetylene derivative-containing substance on the substrate; a polymerization step for causing a polymerization reaction of the diacetylene derivative in at least a portion of the film of the diacetylene derivative-containing substance to generate a polymer of the diacetylene derivative on the substrate; and a removal step for removing the film of the diacetylene derivative-containing substance formed on the substrate to form a pattern of the polymer of the diacetylene derivative on the substrate.

The present application relates to a kind of diacetylene functionalized covalent organic framework material and its preparation method and application, to 4,4',4'',4'''-(pyrene-1,3,6,8-tetrayl) tetraphenylamine, 5,5'- (but-1,3-diethynyl-1,4-diyl) diisophthalaldehyde as building unit, synthesis using Schiff base reaction.The diacetylene functionalized covalent organic framework material of the present application has good chemical stability, and can be used as carrier by metal coordination effect Controllable growth silver nanoparticles to obtain composite material, the composite material in sodium borohydride catalytic 4-nitrophenol reduction reaction has shown excellent catalytic activity and cycle stability, thus has important application potential in the field such as environmental remediation and green chemistry.

The application discloses a double-crosslinked hydrogel microneedle patch, which comprises a substrate layer and a needle tip part, wherein the needle tip part is made of an active oxygen responsive polypeptide prodrug, an ester bond functionalized small molecule prodrug, a polypeptide diacetylene and a double bond functionalized macromolecule, and the active oxygen responsive polypeptide prodrug, the ester bond functionalized small molecule prodrug and the polypeptide diacetylene are loaded on the double bond functionalized macromolecule through coupling covalent action; the active oxygen responsive polypeptide prodrug and the ester bond functionalized small molecule prodrug release drug molecules slowly through responding to an active oxygen microenvironment and ester bond hydrolysis respectively. The needle tip of the microneedle patch obtained by the application has good mechanical properties and can break through the cuticle barrier of the skin; on the basis of the above-mentioned physical properties, the needle tip still retains the cell activity of the bioactive polypeptide; in addition, the selected polypeptide type of the application can also inhibit the expression of fibrosis related proteins of cells, and thus an unexpected technical effect is achieved.

The application discloses a method for diacetylene topological chemical reaction, which comprises the following steps: spin-coating a diacetylene solution on a substrate to form a coating film; and irradiating the coating film with an infrared light source to generate polydiacetylene through reaction. Compared with the side reactions and degradation caused by high-energy rays which make materials enter an electronic excited state, and the material fragmentation caused by the violent spatial change of molecules under high polymerization, the mid-infrared light vibration excitation in the method can be used as a means for initiating the vibration of molecules in an electronic ground state, and can be more widely close to a potential energy surface under mild conditions, so that various adverse effects generated in the electronic excited state can be avoided.

This invention discloses a method for photoreactive synthesis of graphene, belonging to the field of graphene material technology. The method uses 1,2-bis(4-pyridyl)butadiyne as a reactant, which is ground and then subjected to solid-state polymerization under mercury lamp irradiation to obtain a brown solid. The resulting brown solid is then washed with dichloromethane until it becomes colorless, clear, and transparent. After ultrasonication and drying, graphene is obtained. Compared with traditional methods, this invention eliminates the need for high pressure to compress intermolecular distances, avoiding the problems of complex processes, high energy consumption due to high pressure, difficulty in obtaining equipment, and high production costs. This invention features a simple preparation method, a concise synthesis route, a reliable process, low energy consumption, readily available raw materials and equipment, and low production costs, making it suitable for large-scale production.

The invention discloses an acetylene circulating solution catalytic hydrogenation process which mainly comprises the following steps: heating an acetylene circulating solution to a reaction temperature, carrying out two-stage hydrogenation reaction, completely hydrogenating higher alkyne such as butadiyne in a solvent into alkane, carrying out flash evaporation removal on the alkane, and sending the alkane to an acetylene cracking unit by a blower to serve as a cracking reaction raw material, the hydrogenated solvent is subjected to steam stripping dehydration through acetylene-rich gas from a vacuum degassing tower and then is sent to a pre-absorption tower circulation and solvent regeneration unit, and acetylene is recovered before steam stripping gas is sent to a cracking gas compressor. According to the catalyst and the technical scheme adopted by the invention, 99% of higher alkyne in an acetylene circulating solution is removed, and the problem of blockage of the higher alkyne in an acetylene device is solved; high-grade acetylene hydrogenation products and acetylene-rich gas are recycled, so that the acetylene yield of the device is improved, and the acetylene loss is reduced.

The invention provides silicon aryne resin and a preparation method thereof. The silicon aryne resin is prepared from the following raw material components in parts by weight: 12 to 16 parts of magnesium chips, 60 to 65 parts of bromoethane, 30 to 36 parts of diacetylene benzene, 0.5 to 1.0 part of vinyl trichlorosilane, 18 to 21 parts of methyl vinyl dichlorosilane, 172 to 198 parts of methyl tetrahydrofuran, 18 to 21 parts of acetic acid and 250 to 350 parts of deionized water. The invention also provides a silicon aryne resin composite material and a preparation method thereof, and the silicon aryne resin composite material is prepared by alternately arranging quartz glass fiber yarns and hollow quartz glass fiber yarns on a yarn collecting frame at intervals according to the quantity ratio of 1: 1, and then sequentially dewaxing, dipping in a silicon aryne resin solution, baking and curing. The molecular structure of the silicon aryne resin contains aromatic rings, silane, alkynyl and other structural groups, and the resin can form a spatial network structure with high aromatic ring content after being cured, and has excellent high temperature resistance.

The application discloses a kind of aromatic butadiynyl palmitic acid and its preparation method and application;The present application efficiently synthesizes aromatic butadiynyl palmitic acid with cyclopentadecanolide as raw material, with low cost, simple synthesis process and high total yield;And, the present application breaks through the restriction that the existing technology cannot construct conjugated diacetylene structure, by the accurate introduction of aromatic butadiynyl group, so that the palmitic acid probe can be used in 1600~2300cm ‑1 The Raman signal intensity of the characteristic interval is increased by at least one order of magnitude, and the sensitivity requirement of super-multipath metabolic imaging is met.

The invention discloses a ferriporphyrin conjugated acetylene polymer peroxidase-like material as well as a preparation method and application thereof, and belongs to the field of functional polymer materials, a ferriporphyrin structural unit is connected with 1, 4-diacetylene benzene through a Sonogashira coupling reaction to construct a polymer skeleton with an extended conjugated structure, the ferriporphyrin unit is used as a peroxidase-like active center, and the polymer skeleton with the extended conjugated structure is used as a peroxidase-like active center. The material has a porous structure (the specific surface area is 100-800 m / g) and excellent catalytic activity (the specific surface area is 1.0-2.5 mM), hydrogen peroxide can be detected with high sensitivity, the detection limit reaches 0.5 mu M, and the detection range is 0.5-500 mu M. The material is simple and convenient in preparation method, good in chemical stability and thermal stability and recyclable, is an ideal substitute of natural peroxidase, and has wide application prospects. The method has wide application prospects in the fields of biological analysis, clinical diagnosis, food safety, environment monitoring and the like.

The application discloses a graphite diacetylene modified aramid III composite fiber and a preparation method thereof. The graphite diacetylene is added in the process of forming the aramid III polymer. The graphite diacetylene participates in the whole condensation reaction through in-situ addition. The conjugated structure on the surface of the graphite diacetylene nanosheet can be combined with the aramid molecules through van der Waals force, so that the crystallization and orientation of the aramid III molecules are induced, the interaction between the aramid macromolecular chains is enhanced, the internal structural defects of the aramid III are filled, the aramid III is more compact, the compactness of the aramid fiber is improved, and the mechanical properties of the aramid fiber are improved. Meanwhile, the carbon-carbon triple bond functional groups are introduced due to the addition of the graphite diacetylene, so that the function of the aramid III fiber is increased.

The invention belongs to the technical field of polymers and luminescent materials and particularly relates to a room-temperature phosphorescent block polymer containing triphenylene modified triarylamine groups as well as a preparation method and application of the room-temperature phosphorescent block polymer. The room-temperature phosphorescent block polymer comprises the following components in molar ratio: (a) 0.1-10% of a structural unit from an organic phosphorescent molecular monomer in molar ratio; (b) a structural unit from a macromonomer with a molar ratio of 40-48%; and (c) a structural unit which is derived from a diazido monomer and accounts for 50-55% of the mole ratio. The room-temperature phosphorescent block polymer provided by the invention is formed by polymerizing room-temperature phosphorescent molecules with dialkynyl and triphenylene structures, macromonomers and diazido monomers as structural monomer units. Compared with the existing polymer generated by a physical blending method, the room-temperature phosphorescent block polymer synthesized by the invention has more excellent phosphorescent emission intensity and longer service life.

The application discloses a chiral dendritic diacetylenic molecular material, a supramolecular polymer, a preparation method of the chiral dendritic diacetylenic molecular material and the supramolecular polymer and application of the chiral dendritic diacetylenic molecular material and the supramolecular polymer. The molecular structure formula of the application is shown in the following formula: wherein m=1-3, n=1-3, and X=OMe or OEt. The dendritic diacetylenic molecule is dissolved in an organic solvent or water, and can spontaneously assemble into a dendritic diacetylenic supramolecular polymer under supramolecular force. The polymer can further assemble into more ordered helical fibers at an interface under a saturated dichloromethane steam atmosphere. After irradiation of 365nm ultraviolet light, non-covalent bonds can be converted into covalent bonds, and the chirality of the helical fibers gradually disappears along with the extension of the irradiation time. The application enables dendritic molecules to self-assemble in water or organic solution and to topologically polymerize at an interface, realizes the conversion of non-covalent bond dendritic supramolecules into covalent bond polymers, and simultaneously realizes controllable chirality irradiation of the polymers. The application has important potential application values in chiral materials, optical devices, intelligent materials and biological materials and the like.

Polytriacetylene, a unique conjugated polymer with all-carbon main-chains consisting of alternating double bonds and diacetylene units, can self-assemble into ordered structures under moderate pressures, driven by side-chain crystallization. At higher pressure, the polymer undergoes topochemical cross-linking reactions, resulting in insoluble materials with graphyne-like structural and property characteristics.

The application provides an optically active polydiacetylene film and a preparation method and application thereof. The preparation method comprises the following steps: forming a nanowire array on a substrate, which comprises a first nanowire layer and a second nanowire layer arranged in sequence in a direction away from the substrate, and the nanowires contained in the first and second nanowire layers have a non-zero torsion angle; depositing an achiral diacetylene monomer on the nanowire array, removing the nanowire array to obtain a diacetylene monomer crystal layer; and irradiating the diacetylene monomer crystal layer with ultraviolet light to make it polymerize to form a helical polydiacetylene chain, thereby obtaining the optically active polydiacetylene film. The method provided by the application forms stereoregulated diacetylene crystals through the heteroepitaxy effect of the twisted stacked nanowire array, and only needs to be irradiated with ultraviolet light to initiate the asymmetric polymerization of diacetylene, thereby solving the problems that the crystal structure is difficult to be regulated as required and an exogenous chirality needs to be introduced in the prior art.

The invention relates to a method of spraying a field with a carrier. The method comprises moving a carrier above plants in a field and spraying the plants with a liquid spray. The liquid spray comprises at least one agrochemically active ingredient and at least one adjuvant. The at least one adjuvant is selected from the group consisting of mono- and di-esters of sulfosuccinate metal salts with branched or linear alcohols comprising 1-10 carbon atoms, organosilicon ethoxylates, ethoxylated diacetylene glycols with 1-6 EO, and alcohol ethoxylates. The liquid spray is sprayed at a liquid spray rate such that the volume of liquid spray per area to be sprayed is less than 60 liters per hectare. The liquid spray is sprayed with a hydraulic nozzle and / or an atomizing disc, wherein, when the liquid spray is sprayed with a hydraulic nozzle, the hydraulic nozzle is configured to spray droplets having a volume median diameter (VMD) of at least 170 micrometers, and wherein, when the liquid spray is sprayed with an atomizing disc, the atomizing disc is configured to spray droplets having a VMD of at least 120 micrometers.