133results about How to "Simple molecular structure" patented technology

The invention relates to a novel red BODIPY fluorescent dye with the chemical formula of C10+mH7+nBF2N2+xOy, wherein m, n, x and y are integers from 0 to 100. The preparation method comprises the following steps: dissolving pyrrole with substituent groups R1, R2 and R3 in an organic solution; adding ethyl glyoxylate together with nitrogen to the organic solution for a chemical reaction by using trifluoroacetic acid or toluenesulfonic acid as a catalyst; adding 2,3-dichloro-5,6-dicyano-1,4-benzoquinone oxidative dehydrogenation; and adding organic amine and a boron trifluoride diethyl ether solution for another reaction. After the reaction solution is concentrated, chromatography is performed with a silicagel column to obtain the fluorescent dye. The fluorescent dye can be used for cell imaging, fluorescent probe or laser dye. The fluorescent dye has the advantages that the ultraviolet-visible absorption spectrum and the fluorescence emission spectrum of the fluorescent dye are narrow; fluorescent quanta has high efficiency and good light stability; and the fluorescent dye has simple molecular structure and can be synthesized easily, so as to facilitate popularization and application.

A class of fluorescent probes for the detection of sulfite (hydrogen) salts, consisting of benzoindole quaternary ammonium salts, and the molecule has the following structure: Wherein: R is a kind of in alkyl, aryl, nitro, ester group and ether group of 1-18 carbons independently or at the same time, or benzene, naphthalene, anthracene, pyrene, pyridine, pyrrole, indole, One of coumarin, fluorescein, carbazole, rhodamine, fluorene and quinoline and derivatives thereof; n is 0-20; X ^‑ for F ^‑ , Cl ^‑ , Br ^‑ or I ^‑ , + is a positive charge. The advantages of the invention are: the fluorescent probe has good selectivity to sulfite, and the fluorescence intensity of the fluorescent probe solution and the concentration of sulfite are in the range of 0-8×10 ^‑6 The linear relationship in the molar/liter range is good, showing good practical applicability; the fluorescent probe has a short response time, high detection sensitivity, simple molecular structure, and simple synthesis method, which makes it extremely easy for practical application.

The invention relates to special wire drawing oil for an aluminum wire, which is characterized in that the special wire drawing oil for the aluminum wire comprises biodiesel, colza oil, an antioxidant, a polyester extreme pressure agent and a phosphor-bearing antiwear agent, wherein the compositions by mass portion of the special wire drawing oil for the aluminum wire are: 100 portions of the biodiesel, 20 to 50 portions of the colza oil, 1 to 5 portions of the antioxidant, 5 to 20 portions of the polyester extreme pressure agent and 1 to 5 portions of the phosphor-bearing antiwear agent. The invention relates to a method for manufacturing the special wire drawing oil for the aluminum wire, which comprises the following steps: a. weighing up the biodiesel, the colza oil, the antioxidant, the polyester extreme pressure agent and the phosphor-bearing antiwear agent for standby according to the weight proportion; b. adding the biodiesel into a container at normal temperature, and adding the colza oil into the container, so as to form a solution after uniform stirring; and c. adding the antioxidant, the polyester extreme pressure agent and the phosphor-bearing antiwear agent to the solution in the step b, and uniformly stirring the solution until no deposit exists. The special wire drawing oil for the aluminum wire has low kinematic viscosity, good fluidity, good lubricating effect and strong safety.

The invention discloses a molecular design and preparation method of a nitric oxide fluorescent probe based on a double-response mechanism. The structure of the nitric oxide fluorescent probe can be represented by a general formula (I) (please see the formula in the description), wherein Spacer represents a single bond or acetylene bond or thiophene or substituted aryl unit, Ar represents one of an aryl group, a substituted aryl group, a heterocyclic aryl group and substituted aryl amine, and the substituted group can be one of a hydrophilic ether chain, a sulfonic acid group, quaternary ammonium salt and the like. The key steps of synthesis of the probe molecule can be achieved through a Suzuki coupling reaction or a C-H activation coupling reaction and the like. The probe molecule has the advantages of being high in sensitivity, good in selectivity, short in response time, good in membrane permeability, low in background noise, capable of achieving direct observation and fluorescence-ultraviolet-visible spectrum dual-band response and the like, is a brand-new sensing detection platform and has a good application prospect.

The invention discloses a polyurethane microporous water-proof and moisture permeable film prepared by using a solidification method and a preparation method thereof. The method comprises the following steps of: firstly, preparing a wet coating working liquid and a dry direct coating working liquid; then coating the wet coating working liquid on a transfer carrier, solidifying in the aqueous solution of dimethylformamide (DMF) at mass concentration of 16-22 percent to form a film, washing, drying and coiling to obtain a polyurethane microporous film layer; coating the dry direct coating working liquid on the polyurethane microporous film layer and drying to form a protective layer; and separating the polyurethane microporous film layer and the protective layer from the transfer carrier together so as to form the polyurethane microporous water-proof and moisture permeable film. The film has a two-layer structure, wherein one layer is the polyurethane microporous layer and the other layer is the protective layer. The film structurally has a microporous form and has performances such as non-swelling, water-proofing, moisture permeability, air permeability and the like.

The invention discloses a cyclometalated platinum complexes liquid crystal polarized luminescent material which is based on that phenylpyridine derivatives liquid crystal material is used as cyclomedtalating ligand and acetylacetone is used as anion ligand, and an application thereof. The material is prepared by the following steps: introducing alkoxy to benzene C-4 of the traditional cyclomedtalating ligand phenylpyridine C-2 and introducing alkoxymelthyl to pyridine C-5 to form C^N cyclomedtalating ligand of dialkoxy chain with liquid crystalline properties or in addition introducing fluorine to benzene C-3 to form fluorine-containing C^N cyclomedtalating ligand of dialkoxy chain with liquid crystalline properties, and then using acetylacetone as anion ligand to synthesizing a kind of new cyclomedtalating platinum complex which adopts phenylpyridine derivatives as cyclomedtalating ligand. Compared with the traditional cyclomedtalating platinum luminescent material which adopts functionalized phenylpyridine as cyclomedtalating ligand, the material of the invention has not only high-efficiency luminous performance, but also good liquid crystalline properties and polarisation luminous performance. The material of the invention provides a new way to obtain liquid crystal polarization organic electrophosphorescent material.

The invention discloses a fluorine-substituted organic micro-molecular hole-transport material and an application thereof. The material provided by the invention has a simple molecular structure, wherein benzodithiophene and derivatives thereof are used as a central core; different heterocycle-containing units are introduced to capping groups; and the central core and the capping groups are linkedby different fluorine-substituted phenyl groups. The material provided by the invention has the advantages of simple synthesis steps, easiness in purification, good solubility in an organic solvent,proper molecular energy levels, high hole mobility and electrical conductivity, and good hydrophobicity, is applied to perovskite solar cells with good stability and high short-circuit current densityand energy conversion efficiency, and has extensive application prospects.

The invention belongs to the technical field of visible light curing, and particularly relates to a visible light initiating system capable of initiating free radical/cation polymerization. The system comprises the following components in parts by weight: 0.5-1 part of an integral photosensitizer as a first component, 0.5-1 part of a coinitiator as a second component and 1-3 parts of a photosensitive synergist as a third component, wherein the formula of the integral photosensitizer is shown in the description; the coinitiator is one of fatty amine and aromatic amine derivative; the photosensitive synergist is one of iodonium salt, sulfonium salt and phosphonium salt. Compared with the common reported visible light initiating system, the visible light initiating system has the advantages that the light sensitive wave band is longer, the light absorption capability is stronger, the molecular structure is simple, the preparation is easy, the cost is low, and the visible light initiating system has good compatibility with hydrophobic light-cured resin, can effectively initiate free radical/cation photopolymerization, and has industrialized application potential.

The invention provides a method for preparing a catalyst for catalyzing oxidation of cyclohexane. The method comprises steps as follows: (A), preparing 5 (p-propionate) phenyl-10,15,20-tri(pyridyl) porphyrin; (B), preparing 5(p-hydroxy) phenyl-10,15,20-tri(pyridyl) porphyrin from 5 (p-propionate) phenyl-10,15,20-tri(pyridyl) porphyrin; (C), preparing metallic coordinated 5-(p-hydroxy) phenyl-10,15,20-tri(pyridyl) porphyrin from 5 (p-hydroxy) phenyl-10,15,20-tri(pyridyl) porphyrin; (D), attaching the metallic coordinated 5-(p-hydroxy) phenyl-10,15,20-tri(pyridyl) porphyrin to at least one magnetic microsphere, and methylating 5-(p-hydroxy) phenyl-10,15,20-tri(pyridyl) porphyrin by the aid of methyl iodide.

The invention relates to the field of a sensor electrode material. The invention discloses a preparation method of a flexible sensor electrode modified by molybdenum disulfide quantum dots. A flexible conductive thin film is prepared by a solution mixing method, wherein acrylonitrile-butadiene-styrene resin is used as a flexible substrate, poly 3,4-ethylenedioxythiophene-polystyrolsulfon acid-graphene is used as a conductive material, and an electrode is modified by the molybdenum disulfide quantum dots so as to obtain the flexible sensor electrode. The sensor electrode disclosed by the invention has the advantages of more excellent conductivity, high sensitivity and flexibility, and can be applied to the fields of medical biological monitoring, environment and hygienic monitoring and the like.

The invention relates to the field of organic photovoltaic materials, particularly to a triptycene-based perylene imide compound, a preparation method and applications thereof, wherein the triptycene-based perylene imide compound has the structure formula represented by T-1, T-2 or T-3, and R1 are selected from the following any groups: C2-60 alkyl, substituent-containing alkyl, alkoxy, substituent-containing alkoxy, aryl, substituent-containing aryl, alkyl aryl, substituent-containing alkyl aryl, alkyl heteroaryl, substituent-containing alkyl heteroaryl, alkyl heterocycle group and substituent-containing alkyl heterocycle group, and are the same or different. According to the present invention, with the triptycene-based perylene imide compound, the photoelectric conversion efficiency is significantly improved, the design idea is reasonable and effective, the molecular structure is simple, and the synthesis step is short; and the triptycene-based perylene imide compound is the organicsolar cell material with important application prospects. The formulas T-1, T-2 and T-3 are defined in the specification.

The invention belongs to the technical field of luminescence and display, and particularly relates to a D-pi-A type AIE-TADF near-infrared luminescent material and a preparation method and application thereof. According to the near-infrared luminescent material, phenyl dicyanoquinoxaline with strong electron absorption is used as an acceptor (A) unit, and triarylamine[diphenylthiophenamine, di(4-methoxyphenyl)thiophenamine and di(4-fluorophenyl)thiophenamine] with strong electron donating is used as a donor (D) unit. The near-infrared luminescent material is high in thermal stability and has excellent carrier transport performance and photoluminescence performance, and the fluorescence quantum efficiency of the near-infrared luminescent material is 27%, so that the near-infrared luminescent material is widely applied to the fields of organic electroluminescent displays, biological imaging and the like.

The invention discloses a double-donor aromatic amine photosensitizer, structurally characterized by having an aromatic amine double-donor conjugated group and a structurally general formula shown as I. Compared with commonly reported visible light initiating systems, this photosensitizer has high absorbability in a visible light area, is simple to synthesize, is applicable to visible LED light source free radicals and cationic curing systems and has application potential.