44 results about "Aromaticity" patented technology

This invention relates to a method for ultra-high sensitivity and specific naked-eye detection of trace aromatic compounds. The method utilizes the long afterglow induced by the specific interaction between the analyte and a matrix as the output signal to achieve naked-eye detection of the analyte. The aromatic compounds are aromatic pollutants and aromatic organic metabolites. This invention utilizes the organic long afterglow induced by mixing the analyte G with the host molecule H through methods such as heating and melting, solvent evaporation and crystallization, matrix adsorption, and paper chromatography as a monitoring signal to achieve ultra-high sensitivity and specific naked-eye detection of trace aromatic compounds. The afterglow induced by the analyte G is highly dependent on the type and content of the analyte and matrix, which gives this detection method extremely high sensitivity and selectivity. The method is simple to operate, rapid, visible to the naked eye, requires inexpensive and readily available materials, and provides stable results.

The invention discloses an optical monomer and a preparation method thereof, a resin mixture and application, the molecular structure of the optical monomer takes an aromatic skeleton or an aliphatic skeleton as a center and extends outwards to form a branched chain with a hexa-mercapto functional group, the aromatic skeleton has certain rigidity, the aliphatic skeleton has flexibility, and the molecular structure is uniform. Therefore, the optical monomer has ultrahigh refractive index, high light transmittance and good heat resistance.

This invention discloses a few-layer coal-based graphene and its preparation method. The preparation method includes the following steps: (1) grinding coal raw material and acid washing to obtain impurity-free coal raw material; (2) mixing the impurity-free coal raw material with a swelling agent and heating under reflux to swell it, to obtain a coal swelling product; (3) ultrasonically treating the coal swelling product to remove the solvent and obtain a coal dissociation product; (4) calcining the coal dissociation product to obtain coal-based graphene. This invention innovatively uses a physical exfoliation method to obtain a free coal-based aromatic conjugated sheet structure, utilizing the molecular structure advantages of coal itself, and directly calcining it without catalyst doping to significantly improve the aromaticity of the material itself, thus obtaining a few-layer coal-based graphene with an aromatic conjugated sheet structure.

The invention relates to a preparation method of an organic non-aromatic circularly polarized luminescent material. A chiral high-molecular polymer polylysine is used as a template and is induced by an achiral quaternary ammonium salt CTAB micelle through a simple solvent evaporation self-assembly method so as to obtain the circularly polarized luminescent material with afterglow. The obtained film has a high asymmetric factor, a new thought is developed for preparing a novel circular polarization luminescent material, and the material also has a good application prospect in the application of anti-counterfeiting encryption and the like.

The invention relates to an aromatic polymer material, a preparation method thereof and application of the aromatic polymer material as a fluorescence sensor in active carbonyl compound detection, and belongs to the field of fluorescence sensing. The preparation method comprises the following steps: by taking squaric acid (SA) and 1, 3, 5-tri (4-aminophenyl) benzene (TAPB) as monomers, carrying out solvothermal condensation reaction in a water-phase solvent to prepare the aromatic polymer material SA-TAPB. The polymer material presents a regular microsphere morphology and has good fluorescence performance, the invention also discloses application of the material in the field of fluorescence sensing, especially detection of active carbonyl compounds, and the material has high specific recognition capability on active carbonyl compounds such as formaldehyde (FA), glyoxal (Gly), acrolein (MGO) and the like in various analytes, and has good application prospects. High-selectivity and high-sensitivity fluorescent sensing of the compounds can be realized, and the preparation method is simple, convenient and efficient and has extremely high practicability.

The invention discloses a polyurethane foam stabilizer and a preparation method thereof, and belongs to the technical field of polyurethane foam stabilizers, and the polyurethane foam stabilizer is polyether grafted polysiloxane generated by reaction of allyl polyether containing Diels-Alder bonds and low-hydrogen silicone oil under catalysis of a platinum catalyst. According to the allyl polyether containing the Diels-Alder bond, allyl-furfuryl glyceryl ether and polyfunctional maleimide are used as reaction monomers, and a Diels-Alder reaction is carried out, so that the allyl polyether containing the Diels-Alder bond and having a double bond is prepared. The introduced furan and aromatic components such as a benzene ring in a polyfunctional maleimide structure remarkably enhance the compatibility and affinity of the foam stabilizer and aromatic oil phase raw materials in a polyurethane flexible foam system. The molecules of the foam stabilizer can be more tightly and effectively directionally arranged on an oil-water interface and an oil-solid interface of a foaming system, so that a more excellent initial interface stabilizing effect is provided.

The invention discloses a rubber-based composite regenerant as well as a preparation method and application thereof, and belongs to the technical field of asphalt regeneration. According to the invention, thymol is introduced, and secondary polymerization of active olefin in pyrolytic oil is inhibited by using a hindered phenol structure of thymol, so that the chemical stability of the regenerant is greatly improved. Thymol molecules remaining in the rubber-based composite regenerant continue to play an antioxidant role in the asphalt service period, peroxy radicals generated by photo-thermal aging are captured, secondary aging of a regenerated pavement is delayed, the service life of a road is prolonged, and the regenerated asphalt is endowed with an anti-aging function. A perfect amphiphilic balance is formed between an aliphatic chain derived from lauric acid and an aromatic ring structure generated by cracking pyrolysis of rubber, the structure can dissolve asphaltene due to aromaticity, and can be dispersed in oil due to fatty property, so that the low-temperature ductility and fatigue crack resistance of the regenerated asphalt are remarkably improved, and the service life of the regenerated asphalt is prolonged. And an excellent blending effect among the components is realized.

A fibrous insulation product, such as a fibrous insulation blanket or board product, includes a plurality of fibers that are entangled together and a crosslinked aromatic polymeric binder that bonds the plurality of fibers together. The fibrous insulation product includes between 80 and 99 weight percent of the fibers and between 1% by weight and 20% by weight of the crosslinked aromatic binder. The fibrous insulation product has a density of between 0.4 and 6.0 pounds per cubic foot (pcf) and an R-value of between 4 and 50. The crosslinked aromatic polymeric binder has an aromaticity of greater than 10%.

The application provides a kind of lignin-based PET nucleating agent and its production method and PET modification method, belongs to the technical field of organic chemistry.The application uses aromatic polymer lignin with complex structure as PET nucleating agent.The cross-linked phenolic polymer structure of lignin makes it not easy to rot, and its rigid structure also makes it have good thermal stability.These advantages are also the necessary conditions for lignin to be used as PET heterogeneous nucleating agent.The application also carries out carboxylation modification on lignin, introduces carboxylic ion clusters on the phenolic hydroxyl and alcoholic hydroxyl of lignin, these ion clusters can chemically induce nucleation of PET, so as to further improve the crystallization rate and crystallinity of PET.In figure 4, from left to right, they are pure PET, PET-G1 and PET-G2 injection molded models, it can be seen that under the same injection molding conditions, the white area of PET that has not crystallized formed by adding the application is significantly reduced, which significantly improves the crystallinity of PET.

The invention discloses an electroluminescent material containing biaryl groups and a synthesis method thereof. The biaryl group compound has a structure as shown in a formula 1. The synthesis method comprises the following steps: reacting a Grignard reagent B with a zinc complex in a solvent M, and then reacting with a halogenated aromatic compound and a palladium catalyst in the solvent M, the Grignard reagent B has a structure represented by formula 2, and the solvent M is an organic solvent. The biaromatic ring derivative synthesized by the method can obtain a high-yield final product through simple post-treatment, the post-treatment is simple, the cost is low, repeatability is realized, the biaromatic ring derivative is suitable for large-scale production and has very high practical value, and the compound utilizing the biaromatic group can be prepared into an electroluminescent material to be applied to an organic electroluminescent device.

The invention belongs to the technical field of biological medicine, and particularly relates to an NTD inhibitor and application thereof. The invention provides a novel NTD inhibitor, a bisphenol A structure of EPI-001 is replaced by utilizing reasonable drug design means such as skeleton transition, the aromaticity of a core skeleton of a compound is increased, and drug design is developed on the basis of the novel core skeleton. The compound prepared by the invention has proliferation inhibition activity on an enzalutamide drug-resistant cell line, has inhibition activity on transcription of a shear mutant AR-V7, and simultaneously shows a good in-vivo half-life period and certain oral bioavailability.

A polymer resin and a preparation method therefor, an optical lens, and smart glasses, relating to the technical field of resin materials. The polymer resin comprises a thioamide group, a thioether group, and an aromatic group, and is prepared from the following raw materials: a thiocyanate, a thiol compound, an organic base catalyst, and a solvent.

This invention discloses a novel ion channel inhibitor and its synthesis process, belonging to the field of pharmaceutical preparation technology. The novel ion channel inhibitor and its synthesis process include: Step 1, injecting raw materials into a reaction vessel, injecting lithium hydroxide, injecting a tetrahydrofuran / water mixture, and refluxing to collect reactant A; Step 2, adding cobalt chloride to reactant A, drying dichloromethane, and refluxing to obtain reactant B. This novel ion channel inhibitor and its synthesis process have several advantages. First, the S-C bond is longer than the C-C bond, making it larger in size than adamantane. The three sulfur groups also possess a certain degree of spatial aromaticity, leading to better interaction with proteins. Preliminary experiments have shown that it may have an inhibitory effect 200 times stronger than adamantane. Second, the in vivo metabolism and environmental degradation rate of sulfur are much higher than that of hydrocarbons, therefore its toxicity and the induction of drug resistance are lower.

The invention belongs to the technical field of organic chemical synthesis, and relates to an aromatic diaza-tribole compound as well as a synthesis method and application thereof. According to the present invention, the alkali metal is adopted to reduce the dibromo-diaza-tribolole, and the nitrogen heterocyclic carbene is added so as to achieve the stable coordination, such that the aromatic diaza-tribolole compound is synthesized for the first time; the compound has relatively strong reducibility, and can be subjected to single-electron, double-electron and four-electron oxidation reactions to obtain a positive ion type diazabicyclo [3, 1, 1] heptane free radical, a double positive ion type diazabicyclo [3, 1, 1] heptane and a double positive ion type diazabicyclo [3, 1, 1] heptane free radical. The BNS-hetero 6, 5-fused bicyclic derivative can also be subjected to a continuous ring increasing / cycloaddition reaction with an unsaturated substrate such as carbon disulfide to generate the BNS-hetero 6, 5-fused bicyclic derivative.

The system provides new methods and processes for the reaction of polymeric / oligomeric substrates with reactants comprising alkyne / alkene and / or protic nucleophilic moieties to afford functionalized polymeric / oligomeric products through the utilization of homogenous and / or heterogenous gold catalysis. More specifically, the system provides routes for reaction of polymeric / oligomeric substrates comprising varying degrees of aromatic character with alkyne / alkene bearing molecules to afford a functionalized polymeric / oligomeric product. The system additionally provides pathways wherein the inverse methodology is realized, providing functionalized materials from the reaction of polymeric substrates bearing alkyne / alkene moieties with aromatic and / or protic nucleophilic reagents. Furthermore, in a tangential methodology, the system affords functionalized polymeric materials from the reaction of polymeric substrates bearing protic nucleophilic substituents with alkyne / alkene containing molecules. The system provides pathways for the facile modification of commodity polymer materials in order to produce value-added materials utilizing current polymer infrastructure, commodity polymer feedstocks, and post-consumer plastic waste.

A new class of ordered functional nanoporous material (OFNMs) with a unique combination of electronic conductivity, gas transport ability, and ion transport properties are provided. The OFNM provided is highly ordered and contains nanometer scale pores lined with nitrogen atoms. The pores have dimensions of from 1.2 nm to 82 nm of longest linear extent across the pore. The functionality within the pore is controlled through selection of groups that extend into the pore. The degree of conjugated aromaticity is readily controlled to adjust the electrical conductivity properties of the resulting structure. By adjusting the groups external to the pore, three-dimensional structures are formed that are organic mimics of zeolites, metal organic frameworks (MOF), or perovskites.

Hydrocarbon polymer modifiers for use in various applications are described.SOLUTION: The hydrocarbon polymer modifiers contain cyclic components and have glass-transition temperatures and Mn defined by the following two equations: (1) Tg ≥ 95 - 2.2 * (% HAr), and (2) Tg ≥ - 53 + (0.265 * Mn); contents of aromatic protons from 12mole% to 19mole% (% HAr); and Mn from 300g / mole to 450g / mole.SELECTED DRAWING: None

The invention belongs to the field of inorganic nanomaterials, and particularly relates to an anti-ferrocene palladium nanocluster material, a method thereof and application of the anti-ferrocene palladium nanocluster material in photothermal conversion performance. The anti-ferrocene palladium cluster disclosed by the invention is a planar metal nanocluster formed on the basis of a Pd5P structural unit, and comprises but is not limited to Pd5-C, Pd5-O, Pd6, Pd8-S and Pd8-P. The cluster structure is similar to the form of a traditional ferrocene compound and has planar aromaticity, but the positions of metal and nonmetal are exchanged. Besides, different from a conventional metal nanocluster with a three-dimensional structure, the anti-ferrocene palladium cluster material with the plane structure has near-infrared absorption (within the ranges of a near-infrared first region and a near-infrared second region), and the maximum absorption wavelength of the anti-ferrocene palladium cluster material mainly originates from electron excitation transition of a cluster metal plane. The unique absorption interval and the electron excitation transition form endow the material with excellent near-infrared light thermal conversion performance.

The present application relates to a method for preparing pure spinnable mesophase pitch, comprising: (1) mixing two kinds of heavy oil or residual oil with a distillation fraction above 400 DEG C, and carrying out a preliminary thermal polycondensation and a first co-carbonization treatment to obtain a pre-polycondensation pitch; (2) under a nitrogen atmosphere, the pre-polycondensation pitch is subjected to constant temperature stirring and blowing to remove part of the evaporable components, and then extracted with an organic solvent to separate into light and heavy components; (3) the light and heavy components are mixed in a certain proportion, and a second co-carbonization agent is added to carry out a second thermal polycondensation to obtain a mesophase pitch precursor; (4) the light components in the precursor are removed by extraction with an organic solvent, and the precursor is kept at a constant temperature to obtain a pure spinnable mesophase pitch. The method has the advantages of mild reaction conditions, low equipment requirements, safety and sustainability; the product has high aromaticity, uniform molecular composition, and low content of heteroatoms and ash.

High-purity polycyclic aromatic hydrocarbons (PAHs) and the byproducts thereof, and methods for producing such products are disclosed. The PAHs may comprise an aromaticity index of about 0.65 to about 0.80. The PAHs may have quinoline insolubles and sulfur impurities of less than about 0.1 wt. % each. A tar or pitch comprising the high-purity PAHs and a method of producing such tar or pitch are disclosed. A synthetic graphite comprising high-purity PAHs is also disclosed. A method of making carbon pellets from high-purity PAHs is also disclosed.

This invention discloses an ionic polymer electrolyte LiPSBI, its preparation method, and its applications, belonging to the field of lithium-ion battery technology. Using 4,4'-oxybis(benzenesulfonyl chloride), p-methylaminobenzenesulfonic acid, and 4,4'-diaminodiphenyl sulfone as raw materials, this invention designs and synthesizes an aromatic polyamide ionic polymer electrolyte LiPSBI with high lithium-ion exchange capacity. Through structural self-assembly, utilizing the physical incompatibility between rigid LiPSBI and flexible PVDF-HFP, a novel ionic polymer electrolyte membrane NSIPM with high porosity can be formed. The introduction of rigid benzene ring segments provides good thermal and mechanical stability to the polymer electrolyte membrane, while the high polarity of fluorine atoms in the flexible PVDF-HFP enhances lithium-ion movement. The battery based on the NSIPM-EC / DMC electrolyte of this invention achieves a discharge specific capacity of 167.5 mAh g⁻¹ at 0.1C and 1C. ‑1 and 129.6mAh g ‑1 It has a stable and reversible discharge capability.

A broad-spectrum dissolution treatment method for natural polymers belongs to the field of polymer processing technology. This method uses a deep eutectic solvent as the solvent, dissolving at 60-80°C for 4-6 hours. The deep eutectic solvent is an aromatic hydrogen bond donor-acceptor deep eutectic solvent composed of a hydrogen bond donor (HBD) and a hydrogen bond acceptor (HBA). The hydrogen bond donor is one of aromatic carboxylic acids, aromatic phenols, aromatic alcohols, and aromatic amides, and the hydrogen bond acceptor is at least one of benzyltrimethylammonium chloride and benzyltriethylammonium chloride. This invention utilizes a DES composed of aromatic HBA and HBD, which exhibits broad-spectrum solubility and excellent solubility for various natural polymers, overcoming the limitation of traditional DES's single applicability. This DES effectively shortens the dissolution time for poorly soluble polymers while improving their solubility. It is highly adjustable, with performance controlled by changing the HBD / HBA combination or ratio.

Applicants disclose a family of low-molecular-weight, main-chain thermotropic liquid-crystalline polyimides (TLC-PI) that are thermally crosslinkable and processes of making and using same. Such materials provide flexibility advantage when modifying ink materials to meet varying processing conditions in additive manufacturing of devices and components that require high-temperature polymers.

The present invention relates to the technical field of polymer resins. Disclosed are a polymer resin and a preparation method therefor, an optical lens and smart glasses. The polymer resin comprises a thioamido group and an aromatic group. The polymer resin is prepared from the following raw materials: a thiocyanate, an amino compound and a solvent.

The invention discloses a bio-based intramolecular composite antioxidant, which has a structure as shown in the following formula I. The bio-based intramolecular composite antioxidant is synthesized by taking bio-based cardanol as a main raw material, firstly halogenating the cardanol to obtain halogenated cardanol, and then performing amination reaction on the halogenated cardanol and 2-furanmethylamine. The antioxidant not only contains phenolic hydroxyl groups which play a role in inactivating peroxy free radicals in hindered phenol antioxidants, but also contains hindered amine which has a function of capturing peroxy free radicals to prevent or inhibit chain reaction and chain growth reaction, not only has good oxidation resistance, but also has the advantages of easily available raw materials, no toxic or side effect and degradability, and can be degraded even if the antioxidant is decomposed in a high-heat environment. Decomposition products are also safe and harmless. And when being applied to polybutylene-1 resin, the polybutylene-1 resin has no influence on human health and environmental safety. Not only is a bio-based raw material adopted, but also a benzene ring is replaced by an aromatic furan ring, so that the dependence on petrochemical resources is reduced, and the method is more environment-friendly.

Provided herein is a polymer composition comprising an aromatic polyamide comprising terephthalic units and isophthalic units or a 6T / DT copolymer and having an overall high aromaticity, with a heat stabilizer and / or a lubricant. The polymer composition demonstrates improved electrical performance in terms of volume resistivity and dielectric strength.

This application provides surface-charged polymer nanoparticles, their synthesis method, and applications. The synthesis method for the charged polymer nanoparticles includes: adding a thiocarbonate chain transfer agent, a charged monomer, an aromatic monomer containing at least two benzene rings, and an initiator to a mixture of water and an organic solvent to obtain a mixture; heating the mixture in a vacuum-sealed environment, and obtaining surface-charged polymer nanoparticles through a polymerization reaction and self-assembly process, wherein the charged monomer is a monomer with a single charge type.

Provided is a novel compound that has a high refractive index.　This polycyclic aromatic compound is a monomer or dimer of a structural unit represented by formula (1), and in the case of a dimer, is a homodimer or a heterodimer. In formula (1), the A ring is an aromatic condensed ring; each R1 is independently a substituted or unsubstituted alkyl, a substituted or unsubstituted cycloalkyl, a substituted or unsubstituted aryl, or a substituted or unsubstituted heteroaryl, and two adjacent R1s may be bonded to each other to form a ring; each L is independently a single bond, a substituted or unsubstituted alkylene, a substituted or unsubstituted alkenylene, or a substituted or unsubstituted alkynylene; each M is independently a substituted or unsubstituted cycloalkylene, a substituted or unsubstituted cycloalkynylene, a substituted or unsubstituted arylene, or a substituted or unsubstituted heteroarylene; n is an integer of 2 to 10; and in the case of a dimer, the A ring in one structural unit and the A ring in the other structural unit are bonded by a single bond.

The electrolytic capacitor includes a capacitor element and a liquid component. The capacitor element includes an anode body having a dielectric layer on a surface thereof, and a conductive polymer covering a portion of the dielectric layer. The liquid component contains a solvent and an acid component. The acid component contains a carboxylic acid compound. The carboxylic acid compound has a first cyclic group having aromaticity, a second cyclic group having aromaticity, a linking group linking the first cyclic group and the second cyclic group, and at least one carboxyl group directly or indirectly bonded to at least one of the first cyclic group and the second cyclic group.

This invention provides a small molecule compound characterized by a structure represented by the following general molecular formula: wherein X1 and X2 are selected from carbon or nitrogen; G1 is an aromatic carbon ring or heterocycle; any or several hydrogen atoms on the G1 ring are substituted by R1; and R1 is selected from nitrogen-containing groups. The small molecule compound of this invention can serve as a highly efficient and specific JAK kinase inhibitor, particularly a Tyk2 inhibitor, and / or a JAK1 inhibitor, and / or a JAK1 / Tyk2 or Tyk2 / JAK1, Tyk2 / Jak2 dual inhibitor.