38 results about "Molecular aggregation" patented technology

The invention belongs to the technical field of organic electronics, and provides a compound, a mixture and a composition for further improving the performance of an organic EL device, and the organic EL device with further improved device performance. The compound has a structure as shown in a formula (1), has an asymmetric structure, can inhibit molecular aggregation and reduce exciton quenching, and shows a high triplet state energy level. The driving voltage of the prepared organic electronic device is reduced, and the luminous efficiency is obviously improved. In addition, the compound provided by the invention also has relatively high thermal stability and contains a certain content of deuterium atoms, so that the service life of the organic electronic device is prolonged. The organic electronic device can be applied to the fields of display and illumination.

The application discloses a kind of aquaculture tail water solubility organic matter characteristic analysis method and system, specifically related to water quality monitoring and analysis technical field, for solving the problem that existing solubility organic matter characterization method is difficult to effectively associate and predict its actual degradation behavior in biological treatment process.Synchronously obtain the three-dimensional fluorescence spectrum data of the water sample to be measured and the liquid chromatography-organic carbon detection combined analysis data, obtain the hydrophilic-hydrophobic component ratio and the proportion of tyrosine-like and humus-like fluorescence components from the analysis, and then judge whether there is significant humus-like component.According to the judgment result, selectively start the deep analysis of the molecular aggregation state of humus-like component, and comprehensively consider the related proportion parameters and aggregation state information, finally realize the evaluation of the biological degradation potential trend of solubility organic matter, and provide key basis for the stability warning of biological treatment system.

The invention relates to the technical field of separation membranes, in particular to a self-assembled ion separation membrane based on a pillararene derivative and a preparation method of the self-assembled ion separation membrane. The pillararene derivative and the triaminoguanidine hydrochloride are respectively dissolved, so that the problems of instant precipitation and phase separation easily caused by direct mixing are effectively avoided. Meanwhile, two functional monomers are ultrasonically dispersed, so that the problem of molecular agglomeration in the mixing process is avoided, the uniformity of reaction liquid is ensured, and a foundation is laid for subsequently forming a flawless separation membrane. The pillararene derivative contained in the separation membrane structure provides a macrocyclic pore structure with ion recognition capability, and triaminoguanidine hydrochloride acts on sites through multiple hydrogen bonds / ionic bonds, so that the selective separation performance of the membrane is further enhanced. Due to the collaborative design of the material, the material has precise molecular recognition capability and adjustable aperture, and can realize efficient selective separation of target objects such as small organic molecules, ions or dyes.

The invention provides a light-emitting auxiliary material and a preparation method and application thereof, and belongs to the technical field of light-emitting materials, the structural formula of the light-emitting auxiliary material is shown in the general formula I. The light-emitting auxiliary material takes 9, 9-phenylalkyl fluorene as a parent nucleus, aryl and arylamine groups are connected to the two sides of fluorene of the 9, 9-phenylalkyl fluorene respectively, 9-phenylalkyl fluorene has relatively high glass transition temperature and quantum fluorescence efficiency, the stability and luminous efficiency of the compound can be effectively improved, the energy levels of the highest occupied molecular orbital and the lowest unoccupied molecular orbital can be flexibly adjusted by introducing an electron-donating group arylamine, and the energy barrier of hole injection can be effectively reduced; meanwhile, the other side is connected with an aryl group, so that a conjugated system can be effectively extended, a fluorescence quenching phenomenon caused by intermolecular pi-pi accumulation and excessive molecular aggregation is reduced, the service life of an OLED (Organic Light Emitting Diode) device can be effectively prolonged, the luminous efficiency of the OLED device can be effectively improved, and the driving voltage can be reduced by utilizing the light-emitting auxiliary material.

The application relates to a preparation method of a flame-retardant modified polyisocyanate, and belongs to the technical field of polyurethane elastomers. Nano-composite flame retardants are chemically grafted through the reaction of hydroxyl groups and isocyanate groups in polyisocyanate segments, can be uniformly dispersed in a hydrophilic system, and avoid agglomeration and sedimentation caused by physical mixing. Not only is the dispersibility of the nano-composite flame retardants in polymers improved, but also the interfacial bonding force between the two is improved. 2,2-dimethylol propionic acid is covalently grafted to the polyester side chain of the polyisocyanate through the esterification reaction of hydroxyl groups, pyromellitic anhydride and trimethylolpropane, is converted into a carboxylate after neutralization, and the dispersibility in water is improved. The branched main chain of the comb-shaped polyisocyanate and the side chain polyester unit form a large steric hindrance, further weaken the van der Waals force between molecules, enhance the repulsion between particles, avoid molecular aggregation, and make the flame-retardant modified polyisocyanate form a stable and uniform dispersion liquid in deionized water.

A device may receive, by the computer system, a digital chemical structure for each of a plurality of ligand-drug conjugate compounds. A device may calculate by said one or more processors, an aggregation number for each of said plurality of ligand-drug conjugate compounds. A device may rank, by the computer system, at least a portion of said plurality of ligand-drug conjugate compounds based on said aggregation number. A device may identify, by the computer system, a plurality of low aggregation ligand-drug conjugate compounds based on said ranking, wherein said plurality of low aggregation ligand-drug conjugate compounds is a portion of said plurality of ligand-drug conjugate compounds having an aggregation number indicative of a predicted molecular aggregation lower than the predicted molecular aggregation of a remaining ligand-drug conjugate compounds within said plurality of ligand-drug conjugate compounds.

The present invention relates to a molecular association of a bile acid or a bile salt and a composition containing the same, and more specifically, to a skin-permeable formulation of deoxycholic acid, a lipolytic pharmacological agent, which has been developed as an external preparation rather than a conventional injection, and which dramatically improves patient compliance.

A device may receive, by the computer system, a digital chemical structure for each of a plurality of ligand-drug conjugate compounds. A device may calculate by said one or more processors, an aggregation number for each of said plurality of ligand-drug conjugate compounds. A device may rank, by the computer system, at least a portion of said plurality of ligand-drug conjugate compounds based on said aggregation number. A device may identify, by the computer system, a plurality of low aggregation ligand-drug conjugate compounds based on said ranking, wherein said plurality of low aggregation ligand-drug conjugate compounds is a portion of said plurality of ligand-drug conjugate compounds having an aggregation number indicative of a predicted molecular aggregation lower than the predicted molecular aggregation of a remaining ligand-drug conjugate compounds within said plurality of ligand-drug conjugate compounds.

The invention discloses a method for preparing a high-protein solution from hydrophobin through membrane treatment and ultrasonic assistance, and belongs to the technical field of food protein modification and membrane separation. The preparation method comprises the following steps: dispersing hydrophobic protein in an alkaline solution, adding maltodextrin into the alkaline solution, carrying out multiple times of concentration and dilution operation through membrane treatment to remove salt ions and macromolecular aggregates, and then adjusting the pH value of a solution system to be neutral by adopting an acidic solution; the preparation method comprises the following steps: firstly, preparing a solution, then treating the solution under the ultrasonic action to form a micro-nano particle structure with good colloidal stability, and finally, concentrating and drying to obtain powdery protein with high solubility. The soluble protein powder obtained by the invention can be widely applied to vegetable protein drinks, nutritional formula foods and functional foods.

The invention discloses a culture tail water soluble organic matter characteristic analysis method and system, particularly relates to the technical field of water quality monitoring and analysis, and aims to solve the problem that an existing soluble organic matter characterization method is difficult to effectively associate and predict the actual degradation behavior of the soluble organic matter in the biological treatment process. Three-dimensional fluorescence spectrum data and liquid chromatography-organic carbon detection combined analysis data of a water sample to be detected are synchronously obtained, the proportion of hydrophilic and hydrophobic components and the proportion of tyrosine-like and humus-like fluorescence components are obtained through analysis, and then whether remarkable humus-like components exist or not is judged. According to a judgment result, deep analysis on the molecular aggregation state of the humus-like component is selectively started, and related proportion parameters and aggregation state information are integrated, so that evaluation on the biodegradation potential trend of the soluble organic matter is finally realized, and a key basis is provided for stability early warning of a biological treatment system.

The invention discloses a flexible metal-organic hybrid halide with full-phosphorescence optical waveguide characteristics and a preparation method and application thereof. According to the invention, a pyridine derivative and cadmium chloride are self-assembled to synthesize a novel metal-organic hybrid halide material. By regulating the intermolecular acting force of the metal-organic hybrid halide crystal, the elastic deformation and plastic deformation of the material can be respectively realized by utilizing the buffer layer and the molecular slippage region. Meanwhile, due to the rigidity of a molecular aggregation structure, the material shows obvious full phosphorescence emission. The flexible metal-organic hybrid halide prepared by the invention is mechanically stripped, and a multi-channel optical waveguide can be realized in a single crystal. The invention not only shows the mechanical flexibility of the metal-organic hybrid halide, but also develops a multi-channel active full-phosphorescence optical waveguide material by utilizing a molecular slippage region of a crystalline material, and has wide application in the fields of optical information communication and the like.

The present invention relates to the fracturing technology, and in particular to a nano-material-containing composition and a preparation method therefor and a use thereof, and a fracturing fluid. The composition comprises a nano material and a solvent. The hydrodynamic particle size of molecular aggregate of the composition satisfies: D10<30 µm, D50 = 50-150 µm, and D90 = 150-300 µm. The preparation method for the composition comprises: after hydroxylation of gas-phase nanosilicon dioxide in a solvent, making gas-phase nanosilicon dioxide come into contact with a monomer represented by formula (II) in the presence of an initiator, and activating the resulting product and then mixing same with a fluorocarbon surfactant. Also provide are a use of the composition in a fracturing fluid and a fracturing fluid containing the composition. The composition can facilitate rapid flowback of a fracturing fluid from a reservoir, thereby reducing the damage to the reservoirs.

The application provides an organic room-temperature phosphorescent molecule under an aggregate light-emitting performance simulation method and system, obtains a geometric structure, an electronic structure and an aggregate structure through an organic room-temperature phosphorescent molecule structure, carries out calculation on microstructures of exciton coupling, electro-phonon coupling and spin-orbit coupling of the organic room-temperature phosphorescent molecule, researches excited state dynamics of the organic room-temperature phosphorescent molecule according to the microstructures, explores an internal relationship between a molecular aggregate form and the excited state dynamics, realizes controllable construction from a molecular structure, an aggregate form to phosphorescent properties, and provides reliable theoretical guidance for design and research and development of high-performance organic room-temperature phosphorescent molecules.

This invention relates to the field of hormone detection technology, specifically to an integrated shrimp molting inhibitor hormone detection kit. The integrated shrimp molting inhibitor hormone detection kit includes a shell and a detection component disposed inside the shell. The detection component, arranged sequentially along the length of the shell, comprises a sample pad, a conjugate pad, a reaction membrane, and an absorbent pad. The conjugate pad includes an upper half and a lower half. The upper half is equipped with a micropillar filter, the inner surface of which is provided with a laminar flow plate to generate swirling and shearing forces on the flowing shrimp hemolymph mixture droplets, thereby breaking down large molecular aggregates. The lower half has parallel channels, a confluence zone, and a flat channel on its surface. The multiple parallel channels have the same channel size, and their outflow ends are connected to the flat channel through the confluence zone. Capillary traction actively anchors and horizontally flattens the liquid flow front, thereby outputting a liquid film of uniform thickness, with a straight front and consistent velocity, covering the reaction membrane.

This invention belongs to the field of organic electroluminescent material preparation technology, specifically relating to a tetradentate cyclic platinum(II) complex based on a phenyl 3,5-position substituted aromatic amine donor structure, electronic devices, apparatuses, and their applications. This invention increases steric hindrance by introducing aromatic amine substituents at the 3,5 positions of 1,1' biphenyl, thus avoiding redshift or luminescence quenching caused by molecular aggregation. The phenyl 3,5-position substituted aromatic amine serves as a hole-type host material, connecting the host and guest materials through chemical bonds, resulting in uniform molecular dispersion and preventing aggregation-induced concentration quenching and efficiency reduction. Organic electroluminescent devices fabricated using the compound of this invention as the luminescent layer show significant improvements in quantum efficiency and color purity, demonstrating great application potential in OLED displays and lighting.

The invention discloses a polyacetal-siloxane copolymer with a wide emission wave band and a preparation method thereof, and belongs to the technical field of polymer synthesis, and the copolymer is prepared by taking hydroxyalkyl siloxane containing heteroatoms (such as O, S, N and the like) and an aldehyde compound as raw materials through condensation polymerization under the action of a catalyst. The preparation process is mild in condition, simple and convenient to operate and high in selectivity. Acetal oxygen atoms in the obtained copolymer aggregate to form an oxygen cluster, a flexible Si-O-Si chain segment promotes molecular aggregation, and the synergistic effect of S-Si coordination makes the copolymer show excellent atypical fluorescence performance, a fluorescence emission spectrum of the copolymer can be covered, and the copolymer shows an excitation wavelength dependent red shift characteristic, and realizes wide-band emission from blue light to near-infrared light. The invention breaks through the technical bottleneck that the wave band of an organic silicon atypical fluorescent material is limited in a blue light region, and has a wide application prospect in many fields.

An acid-soluble nano material and a preparation method therefor and a use thereof, and a fracturing fluid, relating to petrochemical technology. The hydrodynamic particle size D10 of molecular aggregates of the acid-soluble nano material in water is 2-10 µm, D50 is 8-31µm, and D90 is 20-90µm. The preparation method for the acid-soluble nano material comprises: carrying out hydroxylation treatment on an unsaturated fatty monoacid, and carrying out a contact reaction between the hydroxylated unsaturated fatty monoacid and a nano carbonate raw material; and carrying out amination treatment on a product of the contact reaction, wherein the nano carbonate raw material contains a nano calcium carbonate raw material and / or a nano magnesium carbonate raw material. The acid-soluble nano material has the dissolution performance meeting fracturing construction requirements, can realize multi-size plugging in a compact reservoir and improve the plugging rate of a pore throat, and can enter the pore throat for adsorption and space occupation to reduce the retention amount of the fracturing fluid, thereby reducing damage to the reservoir.

The application belongs to the technical field of organic electroluminescent material preparation, and particularly relates to a tetradentate ring metal platinum (II) complex based on a 4-carbazolyl carbene structure, an electronic device, a device and application thereof. The application can increase the steric hindrance of a material molecule by introducing a large steric hindrance 4-carbazolyl at a carbene site, can avoid molecular aggregation, inhibit the interaction between molecules and luminescence quenching, thereby facilitating the improvement of luminescent efficiency and color purity, and has great application prospect in the field of OLED display and lighting.

This invention discloses a diaryl-substituted cyclopentadienyl fused hexabenzoxamethylene derivative and its synthesis method, belonging to the field of organic optoelectronic functional materials technology. This invention utilizes the unique five-membered ring structure to introduce a positive curvature similar to fullerenes into the molecular skeleton by fused cyclopentadienyl groups onto the hexabenzoxamethylene skeleton, thus suppressing excessive molecular aggregation in the solid state. Simultaneously, the introduction of sterically hindered substituents such as mesitylene, triphenylmethyl, and tert-butylphenyl onto the five-membered ring further increases the π-π planar spacing, weakens intermolecular π-π stacking, significantly improves the solubility, film-forming properties, and solid-state luminescence performance of the derivative, and effectively suppresses aggregation-induced fluorescence quenching.

The invention discloses a spiral bridge modified fused ring conjugated polymer as well as a preparation method and application thereof, and belongs to the technical field of conductive polymer materials. According to the preparation method provided by the invention, a novel spiral bridge modified condensed ring monomer spiro-IDT is synthesized, and the monomer is further polymerized through an electrochemical method under low oxidation potential to obtain a corresponding conjugated polymer; the porous microstructure of the conjugated polymer can form effective molecular aggregation, so that ion transmission is facilitated, the conjugated polymer has short response time and high coloring efficiency, and the conjugated polymer has excellent prospects in application to preparation of electrochromic materials.

The present application relates to the technical field of separation membrane, and particularly relates to a self-assembled ion separation membrane based on a pillar [6] arene derivative and a preparation method thereof. The pillar [6] arene derivative and triaminoguanidine hydrochloride are respectively dissolved, thereby effectively avoiding the problems of instantaneous precipitation and phase separation that are prone to occur when directly mixed. Meanwhile, the two functional monomers are dispersed by ultrasonic, thereby avoiding the problem of molecular aggregation during the mixing process and ensuring that the reaction solution is uniform, which lays a foundation for the subsequent formation of a defect-free separation membrane. The pillar [6] arene derivative contained in the structure of the separation membrane provides a macrocyclic pore structure with ion recognition capability, and the triaminoguanidine hydrochloride further strengthens the selective separation performance of the membrane through multiple hydrogen bond / ion bond action sites. The synergistic design of the material makes it have both precise molecular recognition capability and adjustable pore size, and can realize efficient and selective separation of target objects such as organic small molecules, ions or dyes.

The invention relates to an intelligent clenbuterol concentration mapping method based on Raman scattering space-time dynamic attenuation characteristics. According to the method, based on theoretical models of molecular dynamics and statistical physics, frequency-domain spectral information is inverted to a time-domain coherence function, a clenbuterol molecule'free state-cluster state 'double-pool dynamic model is established, and internal correlation between concentration and molecule aggregation state and coherence attenuation is revealed for the first time; abnormal samples can be automatically identified in detection of clenbuterol, and a quality scoring mechanism is provided; compared with traditional Raman spectrum detection, the sensitivity and the measuring range of the method are remarkably improved, the detection limit is reduced to 0.42 mu g / kg from 10-50 mu g / kg and is improved by 20-100 times, and the national standard requirement (1t, 0.5 mu g / kg) is met; the linear range of the measuring range is expanded from 1-2 orders of magnitude to 3-4 orders of magnitude (0.5-500 [mu] g / kg), and a high-residue full scene is covered by trace detection; the method can also be expanded to detection of other small molecules and does not depend on specific chemical properties of substances.

The invention relates to a small molecular material taking p-dibenzo [b] thienyl benzene as a substrate, a preparation method thereof and application of the small molecular material in an OLED (Organic Light Emitting Diode), belonging to the technical field of new materials. The substrate p-dibenzo [b] thienyl benzene and the derivative thereof have a larger conjugate plane structure, can induce stronger intermolecular interaction, not only can reduce a hole transport energy barrier and significantly optimize hole migration performance, but also can promote molecules to form more ordered accumulation on an ITO substrate, so that the hole transport efficiency is improved. Therefore, the problems of aggregation and grain boundary blockage of the material in the film forming process are avoided; a phosphoric acid anchoring group is introduced into the material, so that firm combination of the hole transport material and the surface of an ITO substrate can be realized, and the HOMO energy level better matched with other layers of the device is further guaranteed. When the material is used as a core component of an OLED hole transport layer, molecular aggregation can be effectively inhibited, the thermal stability of a film is enhanced, the conductivity and the hole injection capability are improved, and finally the brightness, the efficiency and the long-term stability of an OLED device are remarkably improved.

The invention belongs to the technical field of organic electroluminescence preparation, and particularly relates to a tetradentate cyclometalated platinum (II) complex guest phosphorescent material with a biphenyl structure, an electronic device, a device and application of the tetradentate cyclometalated platinum (II) complex guest phosphorescent material. According to the invention, alkyl or aryl is introduced to 3 ', 4 'and 5' positions of 1, 1 'biphenyl to increase steric hindrance, so that red shift or luminescence quenching caused by molecular aggregation can be avoided; the stability of the material can be improved by deuteration on the periphery of the cyclometalated ligand, so that the phosphorescent material disclosed by the invention has good chemical stability and thermal stability and is easy to prepare an evaporation type OLED (Organic Light Emitting Diode) device. The current efficiency and the service life of an organic light-emitting device manufactured by taking the complex as a light-emitting layer material are obviously improved, and the organic light-emitting device has a great application prospect in the fields of OLED display and illumination.

The invention relates to the technical field of environmental monitoring, and discloses a method and a system for detecting perfluorooctane sulfonic acid in water. The method comprises the following steps: exciting a fluorocarbon bond vibration mode of perfluorooctane sulfonate molecules in a water sample to be detected by using laser with a specific wavelength, inducing nonlinear transition of instantaneous refractive indexes of the molecules, and obtaining a preliminary optical response signal sequence; extracting a matrix scattering background light intensity fluctuation range and a peak-valley contrast ratio of the signal sequence, and determining a transition amplitude enhancement threshold; when the threshold value exceeds the background range, capturing an instantaneous transition image and processing the instantaneous transition image to obtain a multi-frame difference signal sequence; extracting sequence characteristic parameters, matching the sequence characteristic parameters with a preset response mode, and determining molecular aggregation state configuration characteristics; and through multi-wavelength spectrum fusion verification, ecological threat assessment and signal enhancement processing, a trace concentration quantitative result is obtained. According to the invention, through laser targeting excitation and multi-dimensional feature fusion, the problems of weak trace detection signal, large interference and poor specificity in a complex matrix are solved, and the detection sensitivity and accuracy are improved.

The present invention relates to the technical field of the preparation of organic electroluminescent materials, and specifically relates to a tetradentate cyclometalated platinum (II) complex having an N-heterocyclic carbene structure, an electronic device, an apparatus, and the use thereof. By introducing an alkyl or an aryl at the 4-, 3'- and 5'-positions of 1,1'-biphenyl to increase steric hindrance, the red shift or the luminescence quenching caused by molecular aggregation is avoided; and peripheral deuteration of a cyclometalating ligand can improve the material stability, thereby endowing a phosphorescent material with excellent chemical and thermal stability, and making it easy to prepare an evaporation-type OLED device. An organic electroluminescent device made by using a complex as a luminescent layer material results in a significant improvement in both current efficiency and service life, and has great application prospects in the field of OLED display and illumination.

The application provides a tetraphenylpyrazine, a tetraphenylpyrazine micro-optical fiber and a preparation method and application thereof, and a waveguide modulator, and relates to the technical field of luminescent materials.The tetraphenylpyrazine provided by the application has a structure shown in formula I, has an aggregation-induced emission characteristic, can generate extremely strong luminescence in the case of molecular aggregation, exhibits deep blue fluorescent emission under ultraviolet light irradiation, and has good thermal stability and luminescence stability.

The invention relates to a collagen degerming and filtering method. The collagen degerming and filtering method comprises the following steps: 1) dissolving collagen in a solvent containing a strong electrolyte to realize depolymerization; and (2) putting the depolymerized collagen solution into a uniform electric field, and filtering by using a hydrophilic filter membrane with the pore diameter of 0.22 mu m under the constant pressure of 0.1-0.5 MPa. The amphiphilic structure characteristic of collagen molecules is utilized, electrostatic interaction among the molecules is destroyed through a strong electrolyte solution, the collagen is prevented from self-assembling to form a fiber aggregate, and the collagen is stabilized in a monomolecular dispersion state; and the external electric field utilizes the dipole moment characteristic of collagen molecules, so that long axes of the collagen molecules are directionally arranged along the direction of the electric field. Due to directional arrangement, transverse winding of molecules on the surface of the filter membrane is avoided, the problem of blockage caused by molecular aggregation in traditional filtration is fundamentally solved, the service life of a single filter membrane is greatly prolonged, the handling capacity of the single filter membrane is greatly improved, and the cost of filter consumables and the number of times of shutdown replacement are reduced.

The invention relates to the field of organic electroluminescent materials, in particular to an aza fused ring organic compound. A large skeleton structure is introduced into the structure of the aza fused ring organic compound, so that the horizontal orientation of molecules can be effectively improved; furthermore, a large-volume side group is introduced into the structure, so that the aggregation of molecules can be effectively inhibited. When the compound is applied to a phosphorescent OLED light-emitting layer as a main material and matched with a proper phosphorescent doping material, the light-emitting efficiency of a device can be effectively improved.

The invention relates to the technical field of organic photoelectric materials, in particular to a ternary random polymer, a mixture and an organic photovoltaic device. The invention protects a ternary random polymer as shown in a general formula (I), two electron withdrawing units with specific structures are selected for copolymerization, so that the energy level of the polymer is regulated and the molecular aggregation is improved; better solution machinability and molecular morphology are shown, so that the photoelectric conversion efficiency of the device is effectively improved.