162 results about "Triphenylamine" patented technology

The invention relates to a preparation method and application of a porous material for preparing methanol through carbon dioxide adsorption and conversion. When the material is prepared, firstly, 4, 4 '4' '-(1, 3, 5-triazine-2, 4, 6-trimethylene) triphenylamine and 1, 2-acenaphthequinone are treated in a mixed solvent containing dioxane / acetonitrile / 6M acetic acid, and AT-COF is obtained; further synthesizing by adopting an impregnation method to obtain IrRu-COF; and finally, uniformly mixing the active gamma-aluminum oxide and the IrRu-COF material to form a carrier dispersion liquid, and then carrying out PEI loading, vacuum impregnation, washing and drying to obtain the PEI functionalized gamma-Al2O3 / COF composite catalyst. The technical closed loop from low-concentration CO2 capture to solar driven conversion is realized, the process flow is simple, and the energy consumption is low.

The invention discloses a dual-mechanism antibacterial photosensitizer as well as a preparation method and application thereof, and relates to the technical field of biomedical photoelectric functional materials. The invention relates to a triphenylamine derivative, which can realize fluorescence imaging of bacterial or fungal infection by utilizing fluorescence characteristics, can generate active oxygen under illumination to play a photodynamic therapy role, is suitable for preparing photodynamic therapy preparations and developing antibacterial materials, and can also be applied to the fields of environment and public health and tumor treatment. The problems that an existing photosensitizer is insufficient in broad spectrum, different in fungus drug resistance mechanism, limited in single treatment effect and the like can be effectively solved, and the photosensitizer has wide application prospects.

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 discloses a preparation method of a pyrenyl covalent organic framework material and application of the pyrenyl covalent organic framework material in photocatalytic hydrogen production reaction, and belongs to the field of heterogeneous catalysis. The novel pyrenyl COFs photocatalyst is synthesized by regulating and controlling the quantity of triphenylamine and integrating triphenylamine monomers with different contents into a pyrenyl covalent organic framework (COF) skeleton. The preparation method is simple to operate, mild in reaction condition, short in reaction time and high in repeatability, the obtained pyrenyl COFs have good light capture capacity and photon-generated carrier separation characteristic, electron-hole recombination can be effectively reduced, the excited state service life is prolonged, the reaction efficiency of photocatalytic hydrogen production is improved, and potential application prospects are achieved.

This invention relates to a method for preparing and applying polyamides from a monomer containing 7-methyldibenzo[c,g]carbazole and triphenylamine: 4-({9-[(4-aminophenyl)(4-methoxyphenyl)amino]-7-methyldibenzo[c,g]carbazole-5-yl}(4-methoxyphenyl)amino)aniline. To address the problems of low solubility, difficulty in film formation, poor cycling stability, narrow color change range, and limited functionality in polyamide materials, this invention constructs two triphenylamine groups on 7-methyldibenzo[c,g]carbazole and introduces a methoxy group onto the triphenylamine to increase the polymer's solubility and stability. The polymer of this invention exhibits excellent electrochromic properties, including excellent cycling stability, fast switching time, and high optical contrast. Furthermore, to address the material's multifunctionality, a naphthalene unit is added to the molecular structure, resulting in a polymer with fluorescent emission. This invention can be applied to displays, rearview mirrors, camouflage applications, and the fluorescence detection of p-trinitrophenol.

This application relates to a terphenylamine skeleton compound, its preparation method, and its application, belonging to the field of chemical synthesis technology. The preparation method of the terphenylamine skeleton compound of this application includes the following steps: dissolving 2,4,6-triphenylaniline with thiazole-4-carboxaldehyde or thiophene-3-carboxaldehyde in a solvent, conducting a reductive amination reaction under reducing agent conditions, quenching, extraction, washing, concentration to remove solvent, and purification to obtain the terphenylamine skeleton compound. This application provides a simple and mild synthetic method for the natural active products 5'-phenyl-N-(thiazol-4-ylmethyl)-[1,1':3',1''-terphenyl]-2'-amine and 5'-phenyl-N-(thiophene-3-ylmethyl)-[1,1':3',1''-terphenyl]-2'-amine, which can only be extracted from the secondary metabolites of the marine fungus Aspergillus sp. Furthermore, this method utilizes widely available raw materials, which is beneficial for large-scale industrial production of these natural active products.

The invention discloses a fluorescent probe for beta-lactoglobulin detection and a preparation method and application thereof, and relates to the technical field of food detection. The structure of the fluorescent probe is shown in the specification, r1 and R2 are independently selected from hydrogen or C1-C5 alkoxy, and R3 is methyl or ethyl. Aggregation-induced emission (AIE) is combined with inhibition of twisted intramolecular charge transfer (TICT) when a beta-lactoglobulin (beta-LG) cavity is inserted, a D-pi-A skeleton is adopted, triphenylamine is used as a conservative electron donor and a conservative molecular rotor, and cavity coordination and static electricity are optimized by repositioning receptor connection, so that ICT and charge distribution are systematically adjusted. The cavity locking strategy integrates molecular recognition and motion limitation, and can realize rapid analysis and specific detection of beta-LG in a complex dairy product matrix.

The invention discloses a preparation method of a covalent organic framework photocatalyst for photocatalytic reduction of CO2, which comprises the following steps: adding 4, 4 ', 4' '-(1, 3, 5-triazine-2, 4, 6-triyl) triphenylamine and 2, 5-dibromobenzene-1, 2, 4, 5-tetracarboxylic dianhydride into a reaction kettle, then adding 1-hydroxy-3-methylbenzene and isoquinoline, and uniformly mixing; and carrying out microwave heating on the reaction kettle, cooling to room temperature, filtering, collecting precipitate, washing, and then carrying out Soxhlet extraction and vacuum drying to obtain the covalent organic framework photocatalyst. A surface halogen atom modification strategy is designed and used for regulating and controlling electron distribution and light capture capacity of a donor-acceptor (D-A) in TzPm-COF, and results show that the strategy can effectively improve photocatalytic activity and selectivity of reduction of CO2 into CO, and can be applied to preparation of the TzPm-COF catalyst. A reasonable design strategy is provided for developing a functional modified COFs material for efficiently and selectively photocatalytic CO2 reduction.

The invention relates to the field of biomedicine, and discloses a preparation method and application of an I-type composite photosensitizer with hydrogen sulfide detection performance. According to the invention, TPA-CHO and MN are adopted as monomers, a Schiff base reaction is adopted to synthesize a triphenylamine derivative TPAB with an A-pi-D-pi-A conjugated structure, Cu < 2 + > is further introduced into TPAB molecules, and a stable metal complex composite photosensitizer is formed through a coordinate bond. The functional composite photosensitizer TPAB-Cu < 2 + > has the characteristic of mainly generating I-type ROS and has efficient photodynamic bactericidal activity in an anoxic drug-resistant bacterium infection environment, and in addition, the functional molecule can be applied to drug-resistant bacterium infection microenvironment hydrogen sulfide level detection so as to realize early warning of drug-resistant bacterium infection and real-time detection of a treatment process; the technical problems that in an existing photodynamic therapy, the oxygen dependence of a photosensitizer is high, and the response sensitivity and specificity of a drug-resistant bacterium infection microenvironment are insufficient are solved.

The application discloses a siloxane D-A-D type perylene diimide small-molecule electronic transport layer and a preparation method thereof. Bromine perylene diimide is reacted with a primary amine containing a siloxane end group, and then is coupled with triphenylamine through a Suzuki coupling reaction to synthesize a small-molecule conjugated electrolyte. The siloxane D-A-D type perylene diimide small-molecule electronic transport layer has the following beneficial effects: first, the secondary amine in the side chain can form hydrogen bonds with F and H in the active layer, improve the interface compatibility, and improve the contact with the active layer; second, the D-A-D structure can realize intramolecular charge transfer, and excellent electron mobility can be exhibited; third, a good n-type self-doping is obtained, the work function of a high-stability metal Ag can be reduced, an ohmic contact is formed, and therefore the photovoltaic performance of a device is significantly improved; fourth, the stability can be improved due to the hydrophobicity of the siloxane; and finally, triphenylamine has a special non-planar molecular structure, and can inhibit excessive aggregation of the material.

The present invention relates to the technical field of organic optoelectronic material preparation, and in particular to a hole transport material, an OLED containing the compound, and an organic light-emitting apparatus. The hole transport material uses triphenylamine as a core, with three side chains formed by an aromatic group, an alkyl-substituted fluorenyl group and heteroaryl group, and an ortho-substituted aryl group, enabling the compound to maintain high stability. In addition, when used to fabricate an organic EL element, the material effectively increases the luminous efficiency and operational lifetime of an organic light-emitting device, and has promising application prospects.

This application relates to the biomedical field and discloses a method for preparing a type I composite photosensitizer with both hydrogen sulfide detection capabilities and its uses. The invention synthesizes a triphenylamine derivative TPAB with an A-π-D-π-A conjugated structure using TPA-CHO and MN as monomers via a Schiff base reaction, and further incorporates Cu... 2+ By introducing TPAB molecules, a stable metal complex photosensitizer is formed through coordination bonds. This application presents the functional composite photosensitizer TPAB-Cu. 2+ Characterized primarily by the generation of type I ROS, it exhibits highly efficient photodynamic bactericidal activity in hypoxic environments infected with drug-resistant bacteria. Furthermore, this functional molecule can be used to detect hydrogen sulfide levels in the microenvironment of drug-resistant bacterial infections, enabling early warning and real-time monitoring of the treatment process. This solves the technical problems of strong oxygen dependence of photosensitizers and insufficient sensitivity and specificity in response to the microenvironment of drug-resistant bacterial infections in existing photodynamic therapies.

The invention provides a nano-enzyme hydrogel delivery system and application of the nano-enzyme hydrogel delivery system in myocardial infarction repair, and particularly provides COF nano-particles, hydrogel wrapping the COF nano-particles and application of the hydrogel. The COF nano-particles are obtained by reacting precursor raw materials including 4, 4 ', 4' '-(1, 3, 5-triazine-2, 4, 6-triyl) triphenylamine (TTA) and 2, 5-dimethoxy terephthalaldehyde (DMTP) and then calcining, and the hydrogel wrapping the COF nano-particles comprises a hydrogel skeleton formed by mixing and cross-linking a dextran hydrogel monomer and a chitosan hydrogel monomer and the COF nano-particles wrapped in the hydrogel skeleton.

The invention discloses an oxidative coupling preparation method of a nitrogen / phosphine double-site conjugated polymer organic positive electrode material and application of the nitrogen / phosphine double-site conjugated polymer organic positive electrode material in an alkali metal-based battery. The nitrogen / phosphine double-site conjugated polymer with a permanent porous structure and a hierarchical network is prepared by enabling a triphenylamine derivative monomer and triphenylphosphine to react for 24-48 hours in an organic solvent (such as chloroform and nitromethane) under the protection of inert gas and the action of a catalyst (such as FeCl3 or AlCl3) through a Scholl oxidative coupling reaction and directly copolymerizing the triphenylamine derivative monomer and the triphenylphosphine in the organic solvent (such as chloroform and nitromethane) at the temperature of 0-30 DEG C, and the nitrogen / phosphine double-site conjugated polymer with the permanent porous structure and the hierarchical network is obtained. A typical embodiment of the present invention is named P (PZ2TPA-TPP). The polymer has high-density nitrogen and phosphorus active sites, triphenylamine and triphenylphosphine units are synchronously introduced into the structure, a difunctional site network for synergistically accelerating anion transmission is formed, and the technical bottlenecks of low ion transmission efficiency, poor rate capability, insufficient cycle stability and the like of a traditional organic positive electrode material are effectively improved. The material can be used for preparing a positive plate, and shows high working voltage (about 3.79 V), high specific capacity (-135mAh g <-1 >), excellent cycling stability (the voltage is not obviously attenuated after 200 times of cycling) and excellent rate capability (the voltage is still kept about 100mAh g <-1 > under 10Ag <-1 >) in a lithium dual-ion battery. After the lithium double-ion total battery is further assembled, under a high-load condition (gt; 2 mg cm <-2 >) shows long cycle life (600 times of cycle stability), high energy density and practical application potential, for example, the material can supply power to a smart phone in real time. The preparation process is simple and convenient, the yield is high (up to 88%), and the method is suitable for alkali metal-based batteries of lithium, sodium, potassium and the like, and has important scientific significance and industrial application value.

The application belongs to the technical field of organic semiconductor optoelectronics, and discloses a triphenylamine dicarboxy self-assembled hole transport material, a synthesis method and application as an optoelectronic device. The triphenylamine dicarboxy is used as an anchor group, a bridging unit and a hole transport unit are introduced into the molecular structure through a self-assembled monolayer strategy, thereby obtaining a hole transport material containing triphenylamine dicarboxy, which can solve the technical problems that the organic small molecules with anchor groups in the prior art have poor stability and poor device performance. The introduction of triphenylamine dicarboxy in the hole transport material can improve the efficiency of the optoelectronic device, prolong the service life of the optoelectronic device, including a perovskite solar cell, a perovskite light-emitting diode, a quantum dot light-emitting diode and the like.

The application discloses a fluorescent probe and a detection method for continuously detecting copper ions and hypochlorite. The fluorescent probe is a triphenylamine compound containing an acylhydrazone group and has a structure shown in formula (I). The complex of the application is used as a fluorescent probe for detecting hypochlorite in an aqueous solution, and shows a clear fluorescence enhancement response, has a fast response speed, and can realize real-time detection of hypochlorite. The detection sensitivity is high, and the detection limit is as low as 120 nM. By using a standard curve, the concentration of hypochlorite in a to-be-detected sample can be accurately quantitatively analyzed, especially the concentration of hypochlorite in a commercially available disinfectant sample. The hypochlorite has ultrahigh selectivity, and other common anions have almost no interference. The detection method provided by the application can realize rapid detection of harmful substances, copper ions and hypochlorite, is more efficient, and has a relatively low cost.

Monomer containing naphthofuran and triphenylamine structure and polyamide and preparation method and application thereof. The present application relates to a monomer containing a mother nucleus and a triphenylamine group: N1, N1'-(dinaaphtho[2,1-b:1',2'-d]furan-5,9-diyl)bis(N1-(4-methoxyphenyl)benzene-1,4-diamine) and a preparation method and application of a polyamide. The present application is to solve the problems of low solubility of polyamide materials in organic solvents, difficult film formation and single function. In the present application, the oxygen atom ring structure is introduced, the planarity and fluorescence intensity of the monomer are increased, the color changing ability and stability of the polymer are improved; the methoxy and triphenylamine are introduced, the solubility of the polymer is improved, the polymer is easily soluble in organic solvents, and the starting potential is reduced; the polymer has good electrochromic performance, low explosive detection limit and resistance memory storage performance, and solves the problem of single function. The present application is applied to the fields of electrochromic display, sensing, memory and photoelectric detection.

The invention belongs to the technical field of fluorescent probes, and particularly relates to a fluorescent probe for detecting pyrophosphoric acid or pyrophosphate based on ratiometric fluorescence, a preparation method and application. According to the fluorescent probe, cyclotriphosphazene is taken as a core platform, a naphthalimide-triphenylamine luminophore and a terpyridine recognition unit are introduced, a multi-arm fluorescent probe is integrally formed, coordination terpyridine interacts with metal ions Zn < 2 + >, fluorescence signals are induced to change, and therefore sensitive detection on PPi is achieved. The fluorescent probe has the advantages of quick response, high selectivity, interference resistance and low cost, and has important application value in the fields of environmental science, biological science and the like.

The present invention provides a tire that is less of a burden on the environment, and also has excellent wear resistance and excellent ozone resistance. This tire comprises, in a tread part: outer-layer rubber constituting the tread surface of the tread part; a layer of metal cords provided inward of the outer-layer rubber in the tire radial direction; and inner-layer rubber positioned between the outer-layer rubber and the layer of metal cords. The outer-layer rubber contains a rubber component (A), a resin component (B), a filler (C), and an anti-aging agent (D). The anti-aging agent (D) includes a triphenylamine-based anti-aging agent (D1) represented by a prescribed formula. The inner-layer rubber contains a rubber component (A') and an anti-aging agent (D').

The application discloses a kind of strong electron donor triphenylamine modified coumarin dyes, its synthesis method and application;The dye has blue-green light excitation characteristics, the maximum absorption wavelength is 415-425 nm, the maximum emission wavelength is 495-505 nm, and excellent lysosome targeting and positioning ability is shown.It overcomes the problem of low efficiency of traditional coumarin as photosensitizer in molecular structure design, realizes the efficient I type photodynamic effect, can generate active oxygen under light efficiently.In addition, this dye has good cell membrane permeability and low dark toxicity, suitable for biomedical imaging, photodynamic therapy of tumor and other fields.The synthesis method is simple, raw materials are easy to obtain, and the yield is high, suitable for large-scale production.Experiments show that the dye can effectively enrich in cell lysosomes, realize precise killing of cancer cells, and show great potential in cancer diagnosis and treatment integration.

The invention discloses a near-infrared aggregation-induced emission material with a cyanine structure as well as a preparation method and application of the near-infrared aggregation-induced emission material, and belongs to the technical fields of biomedical engineering and organic synthesis. According to the invention, IR780 is selected as a representative cyanine dye, a triphenylamine rotor unit is introduced into the structure to enhance molecular movement, the molecular design is modified, and two derivatives of monosubstituted (TPAIR) and disubstituted (TPADIR) are designed and synthesized. The TPAIR and the TPADIR prepared by the preparation method disclosed by the invention both show remarkably improved light stability and photo-thermal conversion efficiency (PCE) in a monomer state. In addition, in the aggregation state, the TPADIR shows the highest PCE; and the TPADIR can still generate active oxygen in an aggregation state, so that the TPADIR shows strong antibacterial activity.

This invention belongs to the field of photodynamic antibacterial materials technology, specifically relating to a photosensitive compound based on a triphenylamine derivative, its preparation method, and its application. The photosensitive compound based on the triphenylamine derivative of this invention is compound I or compound II; the structural formula of compound I is: [structural formula would be inserted here]; the structural formula of compound II is: [structural formula would be inserted here]. The photosensitive compound based on the triphenylamine derivative of this invention exhibits good antibacterial effects, achieving the killing of Staphylococcus aureus and Listeria monocytogenes at significantly lower concentrations (below 0.5 μM; even below 0.25 μM) under white light irradiation.

The patent application discloses an orange-red light thermal activation delayed fluorescence material and a preparation method and application thereof, and relates to the field of organic luminescent materials. The thermal activation delayed fluorescence orange-red light material is composed of an electron acceptor fragment and two same electron donor fragments (triphenylamine), the electron acceptor fragment is quinoxaline-6,7-dicyanide, and the electron donor fragment is triphenylamine. The material has the thermal activation delayed fluorescence characteristic, and the maximum external quantum efficiency of the prepared device is 23.2%.

According to the invention, N, N-bis (4-methoxyphenyl) p-phenylenediamine and vinyl phosphonate are used as main raw materials to prepare triphenylamine-imino di (ethyl-2-phosphonic acid), the chemical name of the triphenylamine-imino di (ethyl-2-phosphonic acid) is N-{4-[N, N-bis (4-methoxyphenyl) amino] phenyl} imino di (ethyl-2-phosphonic acid), and the structural formula of the triphenylamine-imino di (ethyl-2-phosphonic acid) is shown in the description. The organic micromolecule hole transport material is used as an organic micromolecule hole transport material in a perovskite solar cell, has the property of absorbing ultraviolet rays, can convert ultraviolet rays into visible light, and is good in solubility.

This invention discloses a small-molecule pyroptosis inducer for tumor cells. It utilizes an N,N-diethylimine group as an electron acceptor (A), a rhodamine scaffold as a π-conjugated system, thiophene and triphenylamine groups as the first electron donor (D1) and second electron donor (D2), respectively, and a rotatable vinyl and C-C single bond to increase intramolecular motion, forming a novel A-π-D1-D2 type small-molecule pyroptosis inducer, Rd-TTPA, with enhanced D-A structure and intramolecular motion. This small-molecule pyroptosis inducer can efficiently target tumor cell mitochondria, inducing pyroptosis through ultrasound-mediated reactive oxygen species production. It can serve as an enhanced sonodynamic deep tumor therapeutic agent guided by near-infrared II (NIR-II) fluorescence imaging.

This application discloses a hole transport thin film, an optoelectronic device, a fabrication method, and a display device. The hole transport thin film comprises a first polymer and a second polymer. The first polymer is a block copolymer formed by fluorene-containing groups and triphenylamine-containing groups. The second polymer is a block copolymer formed by fluorene-containing groups, triphenylamine-containing groups, and self-crosslinking groups, wherein all or part of the hydrogen atoms in the second polymer are replaced by fluorine atoms. The hole transport thin film of this application is predominantly composed of the second polymer near the top layer. The crosslinked structure in the second polymer provides better solvent resistance, preventing the material components of the light-emitting layer from penetrating into the hole transport thin film, thereby reducing interfacial dissolution and improving the current efficiency of the device.

The invention provides a tumor diagnosis and treatment agent with a targeting function and a preparation method thereof, and belongs to the field of biomedicine. According to the method, triphenylamine is taken as a starting unit, a pi conjugated system is expanded through a benzothiadiazole group, pyridinium salt is introduced as a strong electron withdrawing unit, alkyl chains with different lengths are connected into molecules, and finally, diagnosis and treatment integrated molecules with fluorescence imaging and tumor targeting functions are synthesized. The fluorescent targeted diagnosis and treatment agent not only has good tumor cell plasma membrane targeting accuracy, but also has excellent aggregation-induced emission performance which is obviously higher than that of a traditional commercial photosensitizer, so that accurate targeted localization of tumor cells is realized. Meanwhile, the fluorescent targeting diagnosis and treatment agent TBPPM has excellent singlet oxygen generation capability, and further shows relatively strong tumor cell killing capability. Therefore, the prepared fluorescent targeted diagnosis and treatment agent provides a new material for accurate positioning and treatment of tumors under fluorescence guidance, and also provides a new thought for development of targeted diagnosis and treatment agents for breast cancer.

The application belongs to the field of synthesis of organic semiconductors, and discloses a narrow-band emission pyrene-based blue light material and a preparation method and application thereof.The narrow-band emission pyrene-based blue light material has a structure as shown in formula (1).The pyrene-based organic functional light-emitting material prepared by taking the pyrene intermediate of the application as a precursor is prepared by introducing a biphenyl and triphenylamine or tetraphenylethylene at positions 1 and 3 of the pyrene;in the case of triphenylamine as a strong electron-donating group, the biphenyl units substituted at different positions are used to build the molecular conformation through space conjugation, and the tetraphenylethylene unit plays an important role in realizing the AIE characteristics.The preparation method is simple, the reaction condition is mild, the yield is high, the prepared material has good thermal stability, (deep) blue light emission, the solid quantum yield is greater than 0.7, the highest can be up to 0.9, and the maximum half-peak width is between 20-50 nm.The application is suitable for application scenarios such as high-definition display light-emitting devices.

The invention belongs to the technical field of organic photoelectric semiconductor materials, and discloses a xanthene-based small organic molecule material as well as a preparation method and application thereof. According to the xanthene-based organic small molecule material structure, triphenylamine is used as a core, a large-volume xanthene spirofluorene unit, a dibenzofuran unit and a carbazole unit are introduced, and the molecular size is increased while the excellent hole mobility of the triphenylamine core is preserved, so that excitons close to an active aromatic amine core are eliminated; the micromolecule has the effect of limiting electron leakage, can keep stable under the action of electrons and excitons, is beneficial to hole injection and transmission, and has the following structural general formula. The xanthene-based small organic molecule material can effectively improve the luminous efficiency and prolong the service life of an organic electroluminescent device.

The invention belongs to the technical field of organic hole transport materials, and discloses a side chain type polymer used as a hole transport material, and a synthesis method and application thereof. The side chain type polymer disclosed by the invention is a homopolymer or a copolymer; wherein the homopolymer only has a conjugated unit, the copolymer comprises the conjugated unit and a cross-linking unit, the conjugated unit mainly takes a triphenylamine unit with electricity supply as a core, so that the side chain type polymer has relatively high carrier mobility, and meanwhile, plane conjugated groups such as carbazole and fluorene are introduced, so that the thermal stability of the polymer is improved and the HOMO energy level is adjusted; in the copolymer, a flexible chain segment and a cross-linking group are introduced into a cross-linking unit, and good solvent resistance can be achieved through cross-linking.