62 results about "Diacetylene" patented technology

The invention discloses a graphite diacetylene / copper oxide composite material cocatalyst and a co-production preparation process and application thereof. Graphite diyne has a two-dimensional layered structure and is composed of sp and sp hybridized carbon atoms, a periodically distributed structure is formed, and excellent electron transmission performance and pore structure are shown. An existing graphite diacetylene synthesis method is complex and high in cost, large-scale application of the graphite diacetylene in the industrial field is seriously restricted, the potential value of a copper catalyst cannot be fully exerted, and resource waste is caused. According to the invention, through a simple and efficient co-production process, co-production of graphite diyne and copper oxide nanoparticles is realized for the first time, and the graphite diyne / copper oxide composite material is successfully prepared. The novel composite material can be used as a cocatalyst to effectively improve photocatalytic hydrogen production, and the hydrogen production performance can be comparable with that of noble metal photocatalysts such as Pt. The problems of tedious steps, high energy consumption, low yield and the like in a traditional preparation method are solved, and the preparation method has important application value in the field of high-performance photocatalysis.

The invention discloses an all-organic polymer S-type heterojunction photocatalytic material and a preparation method and application thereof.The all-organic polymer S-type heterojunction photocatalytic material comprises a carrier and an organic polymer growing on the surface of the carrier, organic monomers are originally polymerized on the surface of carbon nitride to form an all-organic polymer S-type heterojunction, and the organic monomers are 1, 4-diacetylene benzene, 2, 4-diacetylene benzene and 2, 4-diacetylene benzene. The compound is 3, 5-diacetylene pyridine or 3, 6-diacetylene pyridazine; the preparation method comprises the following steps: (1) adding carbon nitride and a catalyst into a polar alkali solution, and uniformly mixing; and (2) putting an organic monomer into the mixed solution, and carrying out polymerization reaction to generate the all-organic polymer S-type heterojunction photocatalytic material in situ. The carbon nitride is selected as a carrier to be compounded with the organic conjugated polymer, the organic conjugated polymer can be adjusted to be matched with the energy band position of the carbon nitride by changing the molecular structure, an all-organic polymer S-shaped heterojunction is formed, the intramolecular charge transfer rate is higher, and the photocatalytic performance is improved.

The present application relates to a diacetylene compound represented by formula (I), or a pharmaceutically acceptable salt thereof, a pharmaceutical composition comprising same, and a use of the compound, the pharmaceutically acceptable salt thereof, and the pharmaceutical composition. The compound, or the pharmaceutically acceptable salt thereof and the pharmaceutical composition comprising same can be used for preparing a drug for treating or relieving neuroinflammation and neurodegenerative diseases.

The invention belongs to the technical field of synthesis and application of organic semiconductor materials, and particularly relates to conjugated small molecule photoresist, a preparation method thereof and application of the conjugated small molecule photoresist in an organic thin film transistor. A compound of an alkyl chain with a photoreaction functional group is introduced to benzothienobenzothiophene, a polymerization reaction can be carried out under the assistance of a cross-linking agent by introducing an acetylene group, the polymerization reaction can be carried out by introducing diacetylene, meanwhile, the overall stacking structure of a BTBT core is not changed, and a channel is provided for efficient transmission of current carriers. Therefore, the material combines the functions of organic semiconductor molecules and traditional photoresist, and a new thought is provided for the design of the conjugated small-molecule semiconductor photoresist.

The invention relates to a diyne functionalized covalent organic framework material as well as a preparation method and application thereof, and the diyne functionalized covalent organic framework material is synthesized by taking 4, 4 ', 4', 4 ''-(pyrene-1, 3, 6, 8-tetrayl) tetraphenylamine and 5, 5 '-(butyl-1, 3-diyne-1, 4-diyl) diisophthalaldehyde as construction units and adopting a Schiff base reaction. The dialkynyl functionalized covalent organic framework material disclosed by the invention has good chemical stability and can be used as a carrier to controllably grow silver nanoparticles through metal coordination to obtain a composite material, and the composite material shows excellent catalytic activity and cycling stability in a 4-nitrophenol reduction reaction catalyzed by sodium borohydride; therefore, the method has important application potential in the fields of environmental restoration, green chemistry and the like.

The invention discloses a photocatalyst as well as preparation and application thereof, and belongs to the field of photocatalytic materials, and a preparation method of a porous photocatalyst based on nitrogen heterocyclic rings comprises the following steps: dispersing a parent unit (nitrogen heterocyclic ring molecules) and 1, 4-diacetylene benzene into N, N-dimethylformamide and diisopropylamine, and then quickly adding the catalyst; reacting at 60 to 180 DEG C for 60 to 180 hours; and after the reaction is finished, carrying out suction filtration, stirring and washing a filter cake with a solvent for 1-4 hours, carrying out suction filtration, repeatedly washing and carrying out suction filtration, and carrying out vacuum drying on the filter cake to obtain the nitrogen heterocyclic ring-based porous photocatalyst. The method provided by the invention has the advantages that the preparation conditions are easy to control, the method is environment-friendly, the process is simple and the operation is convenient, and the obtained material not only has high thermal stability, but also shows excellent photocatalytic performance and can be used for efficiently producing hydrogen peroxide. According to the technology, the production efficiency of hydrogen peroxide is improved, the influence on the environment is reduced, and the requirement for sustainable development of the modern chemical industry is met.

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 invention provides a preparation method of 3, 6-diacetylene carbazole, and relates to the technical field of organic synthesis. According to the preparation method, 3, 6-diiodocarbazole and Boc2O are taken as initial reaction raw materials for reaction, then the initial reaction raw materials react with 2-methyl-3-butyne-2-alcohol, and finally, 3, 6-diethynyl carbazole is obtained through deprotection reaction. According to the preparation method, an NH group in 3, 6-diiodocarbazole is protected by Boc2O, then the protected 3, 6-diiodocarbazole reacts with 2-methyl-3-butyne-2-alcohol, so that the reaction is very easy to occur, byproducts are few, the product yield is greatly improved, and the 3, 6-diethynyl carbazole is prepared through a protecting group removal reaction. The method has the advantages of high total yield of 3, 6-diethynyl carbazole, few system byproducts, easiness in post-treatment, low production cost and suitability for industrial production. The test result of the embodiment shows that the total yield of the 3, 6-diacetylene carbazole is 81.3% or above.

The invention discloses a reversible thermochromic polydiacetylene material and application thereof in medium-high temperature overheat monitoring, the material is an amide functionalized conjugated polymer containing polydiacetylene on both sides, and the preparation method comprises the following steps: a) reacting 10, 12-pentacosadiynoic acid with an amine compound to synthesize an amidated conjugated diacetylene monomer; and b) carrying out in-situ topological chemical polymerization on the diacetylene monomer under the irradiation of ultraviolet light to obtain the polydiacetylene material. The polydiacetylene material shows a remarkable thermochromic characteristic under thermal stimulation, the color of the polydiacetylene material changes in multiple steps at different temperature critical points, after the polydiacetylene material is cooled to the room temperature, the color of a polymer is rapidly restored, and the color change of the material is stable through multiple heating and cooling cycle experiments. The material can repeatedly monitor the real-time temperature of various electric appliances or equipment, and overheating after long-time use is avoided.

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 present invention is a method of preparing a Time Temperature Indicator using inkjet printing. The aqueous inkjet printing liquid includes encapsulated diacetylene compounds.

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 application relates to the technical field of tumor marker detection, in particular to a sensor for detecting a tumor marker EpCAM as well as a preparation method and application thereof. The sensor is obtained by self-assembly of a compound of formula 1) and a compound of formula 2) into diacetylene liposomes, then a fluorescent dye-labeled EpCAM aptamer is combined with the diacetylene liposomes through electrostatic interaction to obtain the sensor; the sensor can be used as an activatable fluorescent sensor to sensitively and selectively detect EpCAM and has the effect of fast response, and can realize rapid and sensitive analysis and detection of EpCAM at the water solution level, the living cell level and the animal level; formula 1); formula 2).

The invention discloses a preparation method of a chiral dendronized diacetylene acid molecule and a supramolecular chiral assembly of the chiral dendronized diacetylene acid molecule, and relates to the field of intelligent chiral materials.The preparation method comprises the steps that firstly, tree-shaped alkoxy ether is combined with PCDA through lysine, the tree-shaped alkoxy ether serves as a hydrophilic element, lysine serves as a chiral source and can provide a large number of hydrogen bonds, the PCDA serves as a hydrophobic element, and the supermolecular chiral assembly of the chiral dendronized diacetylene acid molecule is obtained; chiral dendronized diacetylene acid molecules are designed and synthesized; then, supermolecule chiral assembly is carried out through driving of non-covalent interaction, and supermolecule chiral assembly is regulated and controlled through temperature and light; furthermore, the supramolecular chiral assembly is subjected to optical topological polymerization reaction to prepare the valence-donating chiral polymer. The invention opens up a new way for creating a novel intelligent chiral nano material with a special structure and excellent characteristics.

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.

The present invention belongs to the field of polymer synthesis and materials, and specifically relates to an oxazolidinone polymer, its preparation method, and application. The present invention uses a diacetylene monomer, a dialdehyde monomer, carbon dioxide, and a monoamine as raw materials, and reacts in the presence of cuprous iodide and a polar aprotic solvent to obtain the polymer. The oxazolidinone polymer has the following general structural formula: R1, R2, and R3 are the same or different organic groups. The above-mentioned synthesis method has readily available reaction raw materials, mild reaction conditions, and does not require the use of precious metal catalysts, which greatly reduces the reaction cost. In addition, the reaction has a wide range of substrate applicability and good functional group compatibility, and a variety of functional groups can be introduced. The oxazolidinone polymer prepared by the present invention has good processability, high thermal stability, and aggregation-induced emission properties, and has important application value in optical plastics, biomedical materials, optical anti-counterfeiting, fluorescence sensing, and other aspects.

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 polymer conversion wave-absorbing ceramic constructed by a cross-linking strategy, and a preparation method and application thereof, belongs to the technical field of ceramics, and solves the problem of non-uniform material dispersion caused by a preparation method in the prior art. The method comprises the following steps: uniformly dissolving a hyperbranched polyborosilazane precursor containing a silicon-hydrogen bond and poly (diacetylene) dimethylsilane containing alkynyl in anhydrous tetrahydrofuran according to a mass ratio of (5-20): 1, adding a catalyst platinum (0)-1, 3-diethylene-1, 1, 3, 3-tetramethyldisiloxane, reacting at 45-60 DEG C overnight, removing anhydrous tetrahydrofuran, and carrying out vacuum drying to obtain the hyperbranched polyborosilazane polymer. A polymer precursor is obtained; and thermally crosslinking the polymer precursor at 400 DEG C, grinding into powder, pressing into a blank, and pyrolyzing at 1400 DEG C to obtain the polymer converted wave-absorbing ceramic. According to the preparation method provided by the invention, two kinds of polysilane are uniformly mixed and cross-linked from a molecular level to obtain a new polymer precursor, and the wave-absorbing ceramic with uniformly dispersed structural components is prepared through high-temperature pyrolysis, so that a more stable effect is achieved.

The present application relates to a kind of dendritic phenylacetylene crosslinking agent and its preparation method and application.The preparation method carries out amidation reaction with dendritic active ester and amino alcohol, and generates intermediate product;Intermediate product is esterified with diacetylene benzoic acid and catalyst, and dendritic phenylacetylene crosslinking agent is generated.The present application is mainly with dendritic phenylacetylene monomer and dendritic phenylacetylene crosslinking agent, utilizes the good water-soluble and temperature sensitivity of crosslinking agent, can be realized monomer temperature sensitive aggregation under the condition of no additive, and then in situ crosslinking polymerization obtains uniform dispersion dendritic helical polyphenylacetylene micro-nano gel, the gel has dynamic regulation, and exhibits good biocompatibility, can have potential application value in the field such as biosensing, chiral drug delivery, biological tissue engineering.

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 invention provides a conjugated polymer sheet layer-single layer two-dimensional material heterostructure with polarization response, the heterostructure is composed of a polydiacetylene conjugated polymer sheet layer and a single layer transition metal disulfide compound, and the polydiacetylene conjugated polymer sheet layer is obtained by depositing a dispersion liquid on a polydimethylsiloxane polymeric membrane; the single-layer transition metal dichalcogenide is obtained by mechanically stripping a corresponding block, and the heterostructure is obtained through dry transfer. The heterostructure has the following beneficial effects that the optical behavior of the two-dimensional material can be regulated and controlled based on energy band engineering, and the optical property of the two-dimensional material is influenced; the polarization optical characteristic of the two-dimensional material can be regulated and controlled based on the polarization response characteristic of the highly-oriented polydiacetylene conjugated polymer sheet layer, and the polarization luminescence of the two-dimensional material in the heterostructure can generate optical polarization behavior inversion under different wavelengths; based on the polarization switchable characteristic of the system, the system is expected to be applied to polarized light detection.

The application discloses a kind of crosslinking strategy construction polymer conversion wave-absorbing ceramic and its preparation method and application, belong to ceramic technical field, solve the problem of uneven dispersion of material caused by the preparation method in the prior art.The method comprises the following steps: the hyperbranched polyborosilazane precursor containing silicon-hydrogen bond and poly(diacetylene) dimethylsilane containing alkyne group are uniformly dissolved in anhydrous tetrahydrofuran according to the mass ratio of 5-20:1, platinum (0) -1,3-divinyl-1,1,3,3-tetramethyldisiloxane is added, and the anhydrous tetrahydrofuran is removed after overnight reaction at 45-60℃ temperature condition, to obtain a polymer precursor;The polymer precursor is crosslinked at 400℃, ground into powder, pressed into embryo and pyrolyzed at 1400℃, to obtain a polymer conversion wave-absorbing ceramic.The preparation method provided by the application uniformly mixes and crosslinks two kinds of polysilane at the molecular level to obtain a new polymer precursor, and pyrolyzes at high temperature to prepare a wave-absorbing ceramic with uniform dispersion of structural components, achieving a more stable effect.

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 application discloses application of hydrogen-substituted graphdiyne in adsorption and removal of gaseous elemental mercury, and belongs to the technical field of nano adsorption materials. The application of hydrogen-substituted graphdiyne in adsorption and removal of gaseous elemental mercury. It is found that the hydrogen-substituted graphdiyne adsorbent has a large conjugated pi bond, an oversized pore structure and a high-activity diacetylene bond, and through coupling and electron transfer (Hg 0 → hydrogen-substituted graphdiyne) of H1s and C2p in the rich diacetylene bond of the hydrogen-substituted graphdiyne with the Hg5d electron layer of an adsorbed mercury atom, high-efficiency capture of Hg 0 is realized, and conversion of Hg 0 into Hg 2+ is realized without an additional oxidant.

The invention relates to the technical field of tumor marker detection, in particular to a sensor for detecting a tumor marker EpCAM and a preparation method and application of the sensor. The sensor is obtained by self-assembling a compound shown in a formula 1) and a compound shown in a formula 2) to obtain diacetylene liposome, and then combining a fluorescent dye labeled EpCAM aptamer with the diacetylene liposome through electrostatic interaction. The sensor disclosed by the invention can be used as an activatable fluorescent sensor for sensitively and selectively detecting EpCAM, has a quick response effect, and can realize quick and sensitive analysis and detection of EpCAM in an aqueous solution, a living cell level and an animal level; # imgabs 0 # formula (1) and # imgabs 1 # formula (2).

According to the preparation process, TNP-3Br and 1, 4-diacetylene benzene or 1, 3, 5-triacetylene benzene are used as raw materials, tetrakis (triphenylphosphine palladium) and CuI are used as catalysts, toluene is used as a solvent, through structural optimization and modular design of target CMPs, a solvothermal method is adopted based on a Sonogashira coupling reaction mechanism, and the alkynyl-containing conjugated microporous polymer with a helical structure is prepared. The two conjugated microporous polymers CMP-1 and CMP-2 are prepared, and the conjugated microporous polymers have the characteristics of novel raw material structure, simple synthesis process, low cost, mild reaction conditions, high yield and the like; the synthesized CMP-1 and CMP-2 have extended pi electronic systems, so that the CMP-1 and CMP-2 show good electronic conduction performance. The materials have potential application value in photoelectric equipment, such as organic light emitting diodes, solar cells and the like.

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 discloses a preparation method of a large-diameter graphite diacetylene powder material. The large-diameter (5-10 mu m) graphite diacetylene powder material with a two-dimensional nanosheet structure is prepared by adopting a substrate-free system combined with a microwave reaction. Unlike the graphite diacetylene film material prepared in the prior art, the graphite diacetylene powder material has a wider application in ion batteries, electrocatalysis, DNA detection and the like.

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.