2053 results about "Biphenyl" patented technology

The invention discloses a thiapyran molecule modified solar cell and a preparation method thereof. The cell sequentially comprises an ITO (Indium Tin Oxide) conductive glass layer, a 4-aminotetrahydro-2H-thiapyran-1, 1-dioxide hydrochloride modified [4-(3, 6-dimethoxy-9H-carbazole-9-yl) butyl] phosphonic acid hole transport layer, a Cs0.05 (FA < 0.77 > MA < 0.23 >) < 0.95 > Pb < (I < 0.77 > Br < 0.23 >) 3 wide-band gap perovskite thin film, a phenethyl ammonium iodide passivation layer, an electron transport layer of [6, 6]-phenyl-C61-butyric acid isomethyl ester, a 2, 9-dimethyl-4, 6, 7-tetrahydro-2H-thiapyran-1, 1-dioxide hydrochloride modified [4-(3, 6-dimethoxy-9H-carbazole-9-yl) butyl] the hole barrier layer is made of 1, 7-biphenyl-1, 10-phenanthroline; the electrode layer is made of metal Ag; according to the scheme, the hole transport layer is modified through thiapyran molecules, agglomeration of the hole transport layer is relieved, and a more compact and more uniform self-assembled single layer is generated by inducing favorable crystal orientation. A good bottom interface is obtained based on thiapyran molecule modification, and ordered growth of high-quality perovskite crystal grains is promoted. In addition, the energy level of the hole transport layer is effectively adjusted through thiapyran molecule treatment, and the extraction and transmission of carriers by the hole transport layer are enhanced.

The invention discloses a colorimetric and fluorescent dual-mode nano-enzyme sensor. The colorimetric and fluorescent dual-mode nano-enzyme sensor comprises nano-enzyme, hydrogen peroxide and a colorimetric probe, wherein the nano-enzyme is prepared from ZrCl4, 2-aminobiphenyl dicarboxylic acid and Cu (NO3) 2 by a one-pot method; the colorimetric probe is TMB, can oxidize colorless TMB into blue oxTMB, generates an ultraviolet absorption peak at 652 nm, and has a strong fluorescence emission peak at 405 + / -5 nm. The zirconium-based metal organic framework UiO-67-NH2 with high stability is used as a carrier, Zr < 4 + > sites are replaced by part of Cu < 2 + >, the fluorescent nano-enzyme with peroxidase activity is formed, and the problems that free enzyme is difficult to recover, the stability is low and the like are solved.

The invention discloses a medium-temperature curing high-temperature-resistant high-adhesion epoxy structural adhesive film as well as a preparation method and application thereof. The preparation method comprises the following steps: reacting high-rigidity diisocyanate with polyether polyol to obtain a polyurethane prepolymer, then adding bisphenol epoxy resin to carry out grafting reaction, and then adding carboxyl-terminated nitrile rubber to react with an epoxy group to obtain the high-temperature-resistant high-adhesion epoxy resin. And finally, mixing with a curing system and coating to obtain the intermediate-temperature curing high-temperature-resistant high-adhesion epoxy structural adhesive film. The preparation process disclosed by the invention is reasonable, and the high-temperature resistance of the adhesive film is remarkably improved by introducing high-rigidity groups such as naphthalene ring, biphenyl or p-benzene while the excellent processing property of the adhesive film is ensured; and through the synergistic effect of the polyurethane flexible chain segment and the nitrile rubber, the toughness and the adhesive property of a resin system are improved, and the loss of the resin in the forming process is reduced.

The invention belongs to the technical field of organic photoelectric materials, and particularly relates to preparation and application of a benzoselenadiazole covalent organic framework material. According to the invention, benzoselenadiazolyl tetraaldehyde is used as a construction unit, o-toluidine, 4, 4 '-biphenyl diamine or 3, 3'-dihydroxybenzidine is used as a connecting body, and three kinds of novel rigid COFs, namely HBU-COF-CH3, HBU-COF-H and HBU-COF-OH, are synthesized in sequence. The COFs has high cycling stability, has outstanding advantages in the aspect of sustainable heterogeneity of molecular catalysts, and can be used as a heterogeneous photocatalyst to realize efficient hydrogen peroxide production under visible light, and the photocatalytic hydrogen peroxide production performance of the COFs is superior to that of most reported COFs materials. Wherein the yields of HBU-COF-CH3, HBU-COF-H and HBU-COF-OH are as high as 12910 [mu] mol g <-1 > h <-1 >, 8838 [mu] mol g <-1 > h <-1 > and 7679 [mu] mol g <-1 > h <-1 > in sequence.

The invention discloses a triazine biphenyl compound, a composition, a cured product as well as a preparation method and application of the triazine biphenyl compound, the composition and the cured product. The compound is phenolic resin with a triazine biphenyl structure obtained through condensation polymerization of p-cyanobiphenol; the phenolic resin respectively reacts with an epichlorohydrin compound and an acyl chloride compound to obtain epoxy resin and active ester with a triazine biphenyl structure, and the epoxy resin and the active ester can be self-cured or cured under the action of an imidazole accelerator; in the preparation process, triazine ring (containing nitrogen) is introduced as a node, trifunctional epoxy resin with a rigid aromatic structure as an arm and an active ester curing agent (the same skeleton) are prepared into a thermosetting cross-linked network by adopting a non-polar cross-linking scheme, and a three-dimensional network intrinsic microporous structure is formed through in-situ cross-linking regulation and control of a rigid long-arm branched unit. Further, the bottlenecks of low dielectric property, high temperature resistance, flame retardance and the like are broken through, and the cured material has the characteristics of excellent flame retardance, high temperature resistance and low dielectric property.

The invention relates to an anion exchange membrane based on isopropyl piperidone and biphenyl and a preparation method of a membrane electrode, the preparation method comprises the following steps: respectively dissolving an aromatic monomer and IPD in a first solvent, and mixing to obtain a mixed solution, the aromatic monomer being BP or TP; dropwise adding an acidic initiator into the mixed solution for reaction at the reaction temperature of-5 DEG C to 0 DEG C to obtain a nitrogen heterocyclic ring polymer intermediate; adding a quaternization reagent into the nitrogen-containing heterocyclic ring polymer intermediate to realize quaternization modification of nitrogen atoms to obtain a quaternization ionomer; and forming a film to obtain the AEM film. The preparation method of the membrane electrode comprises the following steps: respectively forming a cathode catalyst layer and an anode catalyst layer on two opposite sides of an AEM membrane through ultrasonic spraying to obtain the MEA. The AEM membrane and the MEA obtained according to the invention have the characteristics of excellent stability and high water electrolysis performance, can significantly improve the efficiency and durability of AEMWE, and are suitable for the fields of hydrogen production by water electrolysis and the like.

Described herein are polymorphs comprising 2′,6-difluoro-5′-(1-hydroxy-1-methylethyl)-imidazo[1,2-b][1,2,4] triazin-7-ylThiphenyl-2-carbonitrile (TPA023B) or salts thereof. In one aspect, disclosed herein is a crystalline polymorphic salt or co-crystal of TPA023B with phosphoric acid. Also described herein are methods of making and using the same.

The invention relates to the technical field of preparation of organic photoelectric materials, in particular to an electron transport material, an OLED with the electron transport material and an organic light-emitting device with the electron transport material. According to the electron transport material disclosed by the invention, triazinyl is taken as a framework, phenyl and cyano-substituted biphenyl is taken as a specific substituent group, methyl, adamantyl, phenyl and pyridyl are limited to be matched, and the electron transport material is used as a material for forming an electron transport layer to manufacture an organic electroluminescent device, so that the evaporation process of the device can be smoothly carried out; and the light-emitting efficiency of the organic light-emitting device is effectively improved, and the application prospect is very good.

The invention is applicable to the technical field of intelligent response materials, and provides a three-dimensional azobenzene functionalized covalent organic framework intelligent response material and a preparation method thereof. The three-dimensional azobenzene functionalized covalent organic framework intelligent response material is prepared by uniformly grinding 3, 3 ', 5'-tetra [(3 ', 5'-diformylphenyl)]-hexamethyl biphenyl and azobenzene-4, 4 '-diaminotriphenylamine, adding an organic solvent, adding a catalyst acetic acid aqueous solution, quickly freezing, emptying air, sealing with flame, heating after recovering to room temperature, and obtaining the three-dimensional azobenzene functionalized covalent organic framework intelligent response material. According to the invention, the azobenzene functionalized covalent organic framework material with a bcu topological structure is synthesized; the material has excellent photostimulation response CO2 adsorption performance; reversible control of CO2 adsorption capacity can be realized through ultraviolet light and heating conditions, at least five times of circulation can be maintained, and good circulation stability is achieved.

Embodiments of the present application are directed to supported catalyst systems that include a metal-ligand complex having the structure of formula (I).

The invention belongs to the technical field of pharmaceutical preparations, and relates to traditional Chinese medicine self-assembled nanoparticles for enhancing anti-inflammatory activity as well as a preparation method and application of the traditional Chinese medicine self-assembled nanoparticles. The traditional Chinese medicine self-assembled nanoparticles are prepared from biphenyl cyclooctene type lignan and an oleanane type pentacyclic triterpenoid compound, wherein the mass ratio of the biphenyl cyclooctene type lignan to the oleanane type pentacyclic triterpenoid compound is 1 to (0.125 to 8). Through an anti-solvent exchange method, the carrier-free nanoparticles based on self-assembly of the traditional Chinese medicine active ingredients are prepared by utilizing spontaneous non-covalent interaction between the biphenyl cyclooctene lignan and the oleanane pentacyclic triterpenoid, so that the cytotoxicity is remarkably reduced, the biocompatibility is enhanced, and the toxic and side effects are reduced; meanwhile, the traditional Chinese medicine self-assembled nano-particles have a remarkable cellular uptake effect, the absorption and utilization efficiency of the medicine is improved, and more efficient anti-inflammatory biological activity is shown.

The invention relates to the field of lithium ion batteries, in particular to a fluorine-containing soluble polyimide adhesive special for a lithium battery and a preparation method and application of the fluorine-containing soluble polyimide adhesive. The fluorine-containing polyimide is prepared by reacting dianhydride and diamine, the dianhydride comprises 3, 3 ', 4, 4'-benzophenone tetracarboxylic dianhydride, the diamine comprises 4, 4 '-bis (4-amino-2-trifluoromethylphenoxy) biphenyl and 1, 3-bis (3-aminopropyl)-1, 1, 3, 3-tetramethyldisiloxane, the structure of the fluorine-containing polyimide in the adhesive is as shown in a formula I: # imgabs0 #, and the fluorine-containing polyimide in the adhesive is fluorine-containing polyimide. The groups A and B are independently selected from # imgabs 1 # or # imgabs 2 #, and A is different from B. The adhesive is applied to a lithium ion battery, especially a silicon negative electrode lithium ion battery, shows excellent rate capability and adhesive performance, and has a good industrial prospect.

The invention discloses a coated reflecting film based on an organic fluorescent coating and a preparation method of the coated reflecting film, tetra (4-aminophenyl) methane and tetra-(4-formyl-(1, 1-biphenyl)) ethylene are used as reaction monomers to prepare a novel topological structure [4 + 4] COF (3D-TPE-COF) with a tetraphenylethylene (TPE) unit, and the novel topological structure [4 + 4] COF (3D-TPE-COF) is used for preparing the reflective film based on the organic fluorescent coating. The covalent organic framework material 3D-TPE-COF is added into coating liquid as a fluorescent material to prepare a coating reflecting film based on an organic fluorescent coating, and the obtained reflecting film can convert high-energy blue light, so that the brightness of light emitted by a backlight module is higher and closer to white; meanwhile, the 3D-TPE-COF fluorescent material and the polymer particles can form hydrogen bonds in the coating liquid to avoid aggregation of the polymer particles, so that the wear resistance and scratch resistance of the coating reflecting film are improved.

The invention provides a proton exchange membrane, a preparation method thereof and a fuel cell, and relates to the technical field of fuel cells. The proton exchange membrane comprises a base material with a porous structure, pores of the base material contain active components, and the active components comprise a heteropolyacid modified MOF material and sulfonated polyfluorene biphenyl indole; the weight ratio of the heteropoly acid to the MOF material is 1: (1-3). The proton exchange membrane provided by the invention has the characteristics of excellent mechanical durability, high proton conductivity and ultra-thinness, and can improve the mechanical strength, ductility and chemical stability of the membrane while reducing the expansion of the membrane.

The invention relates to the technical field of polyimide films, in particular to a PI film and a preparation method thereof. The PI film comprises the following raw materials in parts by mass: 100-150 parts of soluble polyimide resin, 5-15 parts of biphenyl epoxy resin, 5-10 parts of activated titanium dioxide, 1-5 parts of a curing agent and 1-3 parts of a curing accelerator, the soluble polyimide resin comprises the following raw materials in parts by mass: 5-10 parts of a first monomer, 25-30 parts of a second monomer, 50-60 parts of a third monomer, 20-30 parts of acetic anhydride and 5-15 parts of triethylamine. The size stability and heat resistance of the film can be remarkably improved, meanwhile, the outstanding transparency of the polyimide film can be guaranteed, and the application of the film in the field of flexible display is met.

The invention discloses application of a microbial natural product GameXPeptide-A in improving the pest control effect of an insecticide, and belongs to the technical field of biological control. Experiments prove that after the GameXPeptide-A is combined with insecticides such as metarhizium anisopliae, beauveria bassiana, nuclear polyhedrosis virus, 4% of abamectin acetamiprid, 10% of spinosad emamectin benzoate, 30% of etoxazole nitrile, 45% of biphenyl etoxazole, 5% of emamectin benzoate, 5% of chlorantraniliprole, 5% of abamectin and the like for use, the insecticidal effect is obviously improved; the insecticidal activity of the insecticide on agricultural pests such as thrips, ostrinia nubilalis and prodenia litura can be effectively improved, so that the substance can be combined with different insecticides for use, and the insecticidal activity of the insecticide on crop pests in agricultural production such as lepidoptera, diptera, coleoptera, orthoptera, hemiptera and homoptera is improved; the compound can be used for development and application of novel pest immunosuppressants or insecticide synergists.

The invention discloses an anti-fog automobile glass film and a preparation method thereof, and relates to the technical field of glass films. The anti-fog automobile glass film prepared by the invention is prepared from modified polyacrylate, modified silicon dioxide and pyrrole, the modified polyacrylate is obtained by reacting polyacrylate with 4-ethynyl acetophenone, and then reacting with 1H-pyrrole-3-formaldoxime; the modified silicon dioxide is obtained by formylating amino silicon dioxide coated with sodium alginate and then polymerizing the formylated amino silicon dioxide, 4, 4 '-diformyl-2, 2'-disulfonic acid biphenyl and pyrrole-3-formaldehyde. The anti-fog automobile glass film prepared by the invention has good antibacterial, anti-aging and photocatalytic properties.

The invention provides a sodium ion battery as well as a preparation method and application thereof, and belongs to the technical field of battery materials. The sodium ion battery comprises a positive electrode, a negative electrode and an electrolyte, the positive electrode is a sodium-supplemented positive plate treated by a biphenyl sodium complex solution; the electrolyte comprises a NaPF6 basic electrolyte and an additive; and the additive is selected from at least one of 3-trimethylsilyl-2-oxazolidinone and N, N-dimethyl formamide. The resistance and capacity of the positive electrode are improved by supplementing sodium to the positive electrode, and the charge-discharge cycle life of the battery is prolonged by adding a polar reagent into the electrolyte to capture PF5 and remove trace water and harmful gas HF generated in charge and discharge.

The invention relates to application of a benzofuran terphenyl compound in medicines, belongs to the field of medicinal chemistry, and particularly relates to a terphenyl compound which comprises a stereoisomer, a geometric isomer, a tautomer, nitrogen oxide, hydrate, solvate, metabolite and ester of the terphenyl compound. The pharmaceutically acceptable salt or the prodrug thereof and the pharmaceutical composition containing the compound are used as medicines, especially used for treating and / or preventing related diseases caused by HIF.

The present disclosure provides polymorphs of 3-(2,3,5,6-tetrafluoro-3′-trifluoromethoxy-biphenyl-4-ylcarbamoyl)-thiophene-2-carboxylic acid, and methods of making such polymorphs. The present disclosure further provides pharmaceutical compositions and kits comprising polymorphs of the invention, and methods of treating, preventing, or ameliorating a disease or condition comprising administering a polymorph of the invention.

To provide a resin composition capable of improving flowability of the resin composition and crack resistance of a cured product thereof.SOLUTION: A resin composition contains an epoxy compound (A), a liquid aromatic amine compound (B), and an inorganic filler (C). The epoxy compound (A) contains a liquid epoxy compound (A1) and a solid epoxy compound (A2). The solid epoxy compound (A2) contains a solid epoxy resin (a) which is at least one kind selected from a group consisting of an isocyanate modified epoxy resin, a naphthalene type epoxy resin, and a biphenyl type epoxy resin. The viscosity of the resin composition at 25°C is 400 Pa s or less.SELECTED DRAWING: Figure 1

The invention discloses a phenanthridine-6-formaldehyde derivative and a preparation method and application thereof.The preparation method comprises the steps that 2, 4, 5, 6-tetra (9-carbazolyl)-isophthalonitrile serves as a photocatalyst, 1-azabicyclo [2.2. 2] octane serves as a hydrogen atom transfer catalyst, a biphenyl isocyanide compound, the photocatalyst, the hydrogen atom transfer catalyst and an alkali additive are jointly dissolved in 1, 3-dioxolane, the mixture is stirred to be uniform, and the phenanthridine-6-formaldehyde derivative is obtained. And carrying out free radical tandem cyclization and acid-catalyzed hydrolysis reaction to obtain the phenanthridine-6-formaldehyde derivative. The invention also provides a specific reaction equation. According to the developed synthesis method of the phenanthridine-6-formaldehyde derivative, the compound can be efficiently and conveniently prepared, the technical bottlenecks of harsh reaction conditions and tedious steps in a traditional process are successfully overcome, raw materials which are low in price and easy to obtain are adopted, operation is carried out under mild conditions, the synthesis method has the outstanding advantages of being high in yield, safe and simple to operate, environmentally friendly and the like, and the method is suitable for industrial production. Good industrial application potential is shown.

The present invention relates to a fluxapyroxad intermediate trifluoronitrobiphenyl synthesis method, and belongs to the technical field of organic synthesis, the method comprises the following steps: Step 1: under nitrogen protection, adding 3, 4, 5-bromotrifluorobenzene, o-nitrophenylboronic acid, a catalyst, a promoter, an alkali and a solvent into a reaction flask, and after addition, carrying out a heat preservation reaction; and Step 2: after the reaction is finished, carrying out phase splitting and organic phase concentration to obtain the 3 ', 4', 5 '-trifluoro-2-nitrobiphenyl. Compared with a traditional synthetic method of the trifluoro-nitrobiphenyl, the synthetic method of the trifluoro-nitrobiphenyl has the advantages that the 3, 4, 5-trifluoro-bromobenzene and the o-nitrophenylboronic acid are directly used as raw materials, the production step of preparing the 3, 4, 5-trifluoro-phenylboronic acid from the 3, 4, 5-trifluoro-bromobenzene through a multi-step reaction is avoided, the yield can be effectively improved, the utilization rate of the raw materials is high, and the method is suitable for industrial production. And the o-nitrophenylboronic acid preparation method is simple, the reaction cost can be effectively reduced, the reaction route is shorter, simpler and more efficient, the reaction conditions are mild, and the method has higher industrial application value.

According to the photopolymer system based on the fluorine-containing liquid crystal, the grating device and the preparation method of the grating device, the mixed liquid crystal containing the nematic liquid crystal and the fluorine-containing liquid crystal at the same time is adopted in the photopolymer system, and therefore the polarity and dielectric anisotropy of the mixed liquid crystal material are improved; the overall electro-optical performance, uniformity and stability of the photopolymer system are improved, so that a grating device prepared based on the photopolymer system has good optical characteristics of low haze while having relatively high diffraction efficiency. Specifically, fluorine-containing biphenyl liquid crystals, fluorine-containing alkyne liquid crystals and fluorine-containing difluoromethoxy liquid crystals of which the carbon atoms of flexible side chains are 2-5, and nematic liquid crystals of which the delta epsilon is not less than 10 are selected to jointly form mixed liquid crystals; and the balance and optimization between the diffraction efficiency and haze performance of the photopolymer system and the grating device prepared from the photopolymer system are realized.

The invention relates to a compound containing a thiophene group, a device and equipment. In the structural formula of the compound, R1, R2, R3, R4, R5, R6, R7, R8, R9 and R10 are independently selected from hydrogen, halogen, cyano, trifluoromethyl, triphenylamine and derivatives thereof, methoxyl, aryl and derivatives thereof, cyanobiphenyl and naphthyl; the compound can be used for preparing a photovoltaic device and photovoltaic equipment and is used for improving the efficiency and stability of the photovoltaic device.

The invention relates to a preparation method of an epoxy and DCP bi-crosslinked EAA and LDPE cable material, and belongs to the technical field of preparation of high-voltage direct-current cable materials. The preparation method of the cable material comprises the following steps: taking an ethylene acrylic acid copolymer EAA and low-density polyethylene LDPE as matrix resin, taking a biphenyl type micromolecular epoxy compound 4, 4 '-biphenol diglycidyl ether and dicumyl peroxide DCP as double crosslinking agents, and carrying out cross-linking reaction to prepare the cable material. And heating and pressurizing in a press vulcanizer to obtain the biphenyl micromolecular epoxy and DCP bi-crosslinked EAA / LDPE high-voltage direct-current cable material. A bi-crosslinking structure formed by biphenyl type micromolecule epoxy and DCP bi-crosslinking EAA / LDPE material and an in-situ introduced voltage stabilizing segment effectively improve the direct current resistance of the cable material. The high-voltage direct-current cable material prepared by the method is simple in preparation process and low in cost, and has excellent mechanical properties and electrical properties.

The invention relates to the technical field of card protection films, and discloses an anti-ultraviolet card protection film and a preparation process. Nano titanium dioxide is used as an ultraviolet shielding agent to effectively reflect and absorb ultraviolet rays. The isocyanate group on the surface of TDI-modified silicon dioxide can produce a chemical bonding effect with a hydroxyl group of a hydroxyl-containing copolyester, and the bonding force is relatively strong, thereby improving the interface compatibility between the nano titanium dioxide and a substrate, and the ultraviolet transmittance is relatively low, so that ultraviolet light in the medium-wave region and the long-wave region can be better absorbed. The modified polyethylene terephthalate contains units similar to the structure of the card protection film substrate, thereby improving the dispersibility of the nano titanium dioxide in the substrate and weakening the damage of ultraviolet light to polyethylene terephthalate molecules. At the same time, the molecular chain contains a biphenyl aromatic structure, which increases the rigidity of the molecular chain, helps to improve the heat resistance of the polyester, and further prolongs the service life of the card protection film.

The invention discloses modified ink for improving the reflectivity of a substrate of a multi-primary-color LED illuminating lamp and a preparation method of the modified ink, and belongs to the technical field of ink. The modified ink is prepared from the following raw materials: 18 to 26 parts of reflective powder, 35 to 60 parts of organosilicone modified acrylic resin, 10 to 16 parts of biphenyl liquid crystal epoxy resin, 5 to 8 parts of a photoinitiator, 3 to 6 parts of a curing agent, 1.5 to 5 parts of an antioxidant, 0.5 to 1 part of a flatting agent and 30 to 40 parts of a solvent. The composite coated core-shell titanium dioxide is adopted as reflective powder and is matched with the organic silicon modified acrylic resin and the biphenyl liquid crystal epoxy resin to prepare the modified ink, the reflectivity can reach 96% or above under the thickness of 30 microns, the yellowing resistance is excellent, the luminous efficiency utilization rate can be increased, energy consumption is reduced, and the service life of the ink is prolonged. The method can be used for preparing high-quality LED lamps with high brightness and high stability.

A pyrazine thio-biphenyl compound and its application, specifically discloses the compound of formula (II) or a pharmaceutically acceptable salt thereof.

The invention relates to the technical field of negative-electrode-free solid-state batteries, and particularly discloses a construction method of a negative-electrode-free solid-state sodium battery interface, which specifically comprises the following steps: dropwise adding a biphenyl sodium solution to a three-dimensional porous skeleton constructed by a solid-state electrolyte to obtain a stable quasi-liquid-state interface layer. The solid electrolyte with the interface layer is applied to the negative-electrode-free solid sodium battery, and the interface layer is applied to a negative electrode side, so that the stability of a negative electrode interface of the negative-electrode-free solid sodium battery can be effectively improved, the nuclear potential of sodium can be effectively reduced, the electric field distribution can be adjusted, dendritic crystal generation can be inhibited, uniform sodium deposition can be promoted, and the cycling stability of the battery can be improved.