664 results about "Simple aromatic ring" patented technology

The invention provides a method for identifying a microscopic association body structure in a heavy oil molecule simulation trajectory, which comprises the following steps of: analyzing a molecular dynamics trajectory, identifying an aromatic ring structure in a heavy oil molecule component, calculating a geometric center of the aromatic ring structure, combining a periodic boundary condition, and applying an improved DBSCAN clustering algorithm to realize automatic identification and clustering of an association body; and performing post-processing optimization on the clustering result, merging the shared clusters to generate a final association body set, and analyzing the number, size distribution, morphological characteristics and dynamic evolution information of the association bodies based on the structural characteristics of the final association body set. The method can accurately capture pi-pi accumulation behaviors of heavy oil molecules, further reveals morphological characteristics and dynamic evolution laws of heavy oil microassociates and influences of the heavy oil microassociates on the apparent viscosity of heavy oil, provides theoretical support for heavy oil viscosity-causing mechanism analysis and viscosity reducer design, can complement experimental research, and has a wide application prospect. And efficient development and green utilization of a complex thickened oil system are promoted.

The invention relates to the technical field of molecular simulation, and provides a method for constructing a heavy component average molecular structure of thickened oil, which comprises the following steps: inputting parameters, generating a core aromatic ring unit, constructing an inner-layer aliphatic ring unit, constructing an outer-layer aliphatic ring unit, generating a side chain unit, and storing and outputting structural information. A plurality of molecular structures meeting experimental data are generated at a time through a traversal algorithm thought, composition characteristics of a heavy oil complex mixture are met, more available molecular structures are provided for molecular simulation, the accuracy and efficiency of molecular modeling are improved, the molecular structures completely meeting the experimental data can be rapidly generated, and the method is suitable for large-scale popularization and application. And only the mass spectrometer, the elemental analyzer, the nuclear magnetic resonance hydrogen spectrum and the infrared spectrum data need to be input, so that the experiment cost is reduced.

The present application relates to a kind of high weather resistance and coating adhesion sunscreen coating and its preparation method, belong to sunscreen coating technical field;The present application uses the modifier with disulfide bond and polymerizable double bond to modify polyacrylate emulsion, significantly improve the flexibility of polyacrylate molecular chain after modification, reduce solidification shrinkage stress and internal stress, improve the coating adhesion of sunscreen coating of hard filler to matrix resin, it can also form stable chemical bonding between polyacrylate resin and titanium dioxide, provide stable stress transfer path, reduce the cracking and warping of coating, in addition, the modifier of the present application has good heat resistance aromatic ring structure, using the modifier of the present application can improve the heat resistance of sunscreen coating without introducing additional modifier.

The invention discloses an optical monomer and a preparation method thereof, a composition, a resin material and a preparation method thereof. The optical monomer provided by the invention comprises a quaternary carbon structure and a side chain connected with the quaternary carbon structure through an ester bond. The side chain comprises a thioether chain segment connected with an ester bond, an aromatic group connected with the thioether chain segment and an epoxy group connected with the thioether chain segment. The optical monomer provided by the embodiment of the invention takes a quaternary carbon structure as a core skeleton, and a side chain sequentially comprises an aromatic group, a thioether chain segment and a terminal epoxy group. A thioether structure with high polarizability and an aromatic group are introduced into the molecular design of the optical monomer, so that the refractive index and the optical transparency of a resin material are remarkably improved. And the rigidity of the epoxy aromatic ring is beneficial to improving the thermal stability and mechanical strength of the resin material. The epoxy group at the tail end can react with conventional epoxy resin to form a compact network structure, so that the stability of the resin material is improved, and the yellowing tendency is reduced.

The invention discloses a hindered phenol monomer containing organic phosphorus heterocyclic rings as well as a preparation method and application of the hindered phenol monomer. The hindered phenol monomer has any one of the following structures: R is selected from-(CH2) b-or an aromatic ring, b is 3 or 4, and the aromatic ring comprises a benzene ring and / or a furan ring. The intrinsic flame-retardant anti-droplet polymer provided by the invention has the characteristics of excellent flame retardance and no droplet, and meanwhile, the intrinsic flame retardant is copolymerized into a molecular chain, so that the intrinsic flame-retardant anti-droplet polymer is not easy to migrate, does not permeate into the surrounding environment, is stable in property, can be used for injection molding and spinning, and can be used for preparing flame-retardant blocky products and fabrics; the composite material is used for interiors of electric appliances, switches, firefighter uniform, military uniform, automobiles, high-speed rails and other limited spaces.

The application relates to a dry powder drag reducer for fracturing fluid and a preparation method thereof, and belongs to the technical field of drag reducers; the dry powder drag reducer is copolymerized and modified by preparing a polymerizable modifier, aromatic rings and sulfonic acid ion structures are introduced into the dry powder drag reducer, the high-temperature resistance and salt resistance of the dry powder drag reducer are effectively improved, in addition, the modified dry powder drag reducer structure also has a catechol structure, can form a stable five-membered ring borate with a boron crosslinking agent, and the dry powder drag reducer can be mixed with a guar gum drag reducer when the boron drag reducer is used, so that the problem of poor sand carrying capacity of the dry powder drag reducer is effectively solved.

The invention relates to a dry powder drag reducer for fracturing fluid and a preparation method thereof, and belongs to the technical field of drag reducers. The dry powder drag reducer is subjected to copolymerization modification by preparing the polymerizable modifier, an aromatic ring and sulfonic acid ion structure is introduced into the dry powder drag reducer, the high temperature resistance and salt resistance of the dry powder drag reducer are effectively improved, in addition, the modified dry powder drag reducer structure further has a catechol structure, and the modified dry powder drag reducer has a good application prospect. The dry powder drag reducer can form stable five-membered ring boric acid ester with a boron cross-linking agent, when the boron drag reducer is used, the dry powder drag reducer can be mixed with a guar gum drag reducer for use, and the problem that the dry powder drag reducer is poor in sand carrying capacity is effectively solved.

This disclosure provides redox cyclable molecules for energy storage. These molecules belong to either the 4H-pyran-4-ylidene family or include a six-membered aromatic ring with one nitrogen atom at position 1 (pyridinium family) or two nitrogen atoms at positions 1 and 4 (pyrazinium family) or at positions 1 and 3 (pyrimidinium family). Molecules in these families are used as analytes in redox flow batteries.

The invention relates to an aromatic ring-containing compound serving as a WRN inhibitor and application thereof, in particular to a compound shown in a formula (I), a tautomer, a stereoisomer, a hydrate, a solvate, pharmaceutically acceptable salt or prodrug of the compound, a preparation method of the tautomer, the stereoisomer, the hydrate, the solvate and the pharmaceutically acceptable salt or prodrug of the compound and application of the tautomer, the stereoisomer, the hydrate, the solvate and the pharmaceutically acceptable salt or prodrug in preparation of drugs for treating WRN-related diseases.

A compound having a ligand LA of Formula I,is disclosed. In Formula I, ring B is a 5-membered or 6-membered ring; K is a direct bond, O, or S; X is O, S, Se, NR, CRR′, SiRR′, or GeRR′; R1 and R2 are each independently selected from a variety of substituents; each R, R′, RA, and RB is independently hydrogen or a substituent; LA is coordinated to a metal M selected from Os, Ir, Pd, Pt, Cu, Ag, or Au by the dashed lines; any two adjacent of R1, R2, R, R′, RA, or RB can be joined or fused to form a ring, with the proviso that when ring B is a 6-membered ring, two RB substituents are not joined to form a fused 6-membered aromatic ring. Organic light emitting devices, consumer products, formulations, and chemical structures containing the compounds are also disclosed.

The invention discloses a transparent polyamide elastomer capable of realizing large deformation and a preparation method and application thereof, a hard segment of the polyamide elastomer contains an alicyclic or aromatic ring structure, and the polyamide elastomer has good transparency and mechanical properties. The hard segment is difficult to crystallize due to the steric hindrance effect of the cyclic monomer and is in an amorphous state at room temperature, the elastomer is endowed with excellent optical performance, the glass-transition temperature of the polyether or polyester soft segment is lower than the room temperature, and good flexibility and rebound resilience can be provided for the material. The polyamide elastomer is prepared through a melt polycondensation method, no extra water is added in the process, and the hydrolysis of the catalyst is inhibited to the maximum extent, so that the polymerization activity between a hard segment and soft segments with different molecular weights can be improved. The polyamide elastomer disclosed by the invention has the advantages of both transparent nylon and long-carbon-chain nylon elastomers, and has relatively high light transmittance (the light transmittance is 85-95%) and flexibility (the elongation at break is 900-2500%).

Provided is a water-based inkjet ink that is excellent in continuous ejection stability and straight ejection, and that provides excellent print density and print quality for prints on various printing substrates, particularly paper substrates, and further has good resolubility. [Solution] The aqueous inkjet ink comprises pigment particles including a pigment and a pigment dispersing resin that covers at least a portion of the surface of the pigment, an acetylene diol surfactant (B-1) having a measured HLB value of 6 to 9, a siloxane surfactant (B-2), an alkanediol having 3 to 4 carbon atoms, an alkanediol having 5 to 8 carbon atoms, and a glycol ether having 4 to 10 carbon atoms, wherein the pigment dispersing resin comprises a crosslinked reaction product of a polymer (A-1) that has an aromatic ring and an acid group and an acid value of 50 to 160 mg KOH / g, and a compound (A-2) that has multiple glycidyl ether groups in one molecule, and the compound (A-2) is blended in an amount that results in a glycidyl group content of 50 to 200 mol %.

The invention belongs to the technical field of taxifolin, and discloses a taxifolin compound, a preparation method thereof and application of the taxifolin compound in the fields of relieving, oil control and senility .The taxifolin compound contains modified beta-cyclodextrin, taxifolin and auxiliary components, and the modified beta-cyclodextrin is modified through a polar group; the auxiliary component is selected from one or more of a hydrophilic polymer, an antioxidant and a targeting carrier. The taxifolin compound provided by the invention is high in inclusion rate and good in water solubility, the polar group modified beta-cyclodextrin can finely adjust the space structure of a cavity to expand an opening, the polar group modified beta-cyclodextrin has high matching degree with the molecular structure of taxifolin, a hydrophobic aromatic ring of taxifolin can enter the cavity to be combined with a hydrophobic core, and the taxifolin compound is high in inclusion rate and good in water solubility. The water solubility is good. The taxifolin compound provided by the invention is strong in anti-inflammatory ability, has a remarkable soothing effect, and also has excellent anti-aging and oil-control effects.

The application relates to the technical field of porous carbon materials, in particular to a spherical porous carbon and a preparation method and application thereof. The preparation method of the spherical porous carbon comprises the following steps: respectively providing a water-phase mixed solution and an oil-phase mixed solution; wherein the water-phase mixed solution comprises a stabilizer, a dispersant and water; the oil-phase mixed solution comprises an aromatic ring-containing alkenyl monomer, a crosslinking agent, a pore-forming agent and an initiator; the oil-phase mixed solution is added into the water-phase mixed solution, a polymerization reaction is carried out under a first inert atmosphere, and a spherical aromatic ring alkenyl polymer is prepared; the spherical aromatic ring alkenyl polymer is sequentially subjected to pre-oxidation treatment under an oxidizing atmosphere, carbonization treatment under a second inert atmosphere and activation treatment under an activating agent, and the spherical porous carbon is prepared. The preparation method of the spherical porous carbon provided by the application does not need sulfonation, the preparation process is simple, and large-scale production can be easily realized.

The application relates to a high-temperature proton exchange membrane and a preparation method and application thereof, the preparation method comprising the following steps: S1. mixing a branched monomer containing an aromatic ring, an aromatic ring monomer containing two reactive sites and a nitrogen-containing heterocyclic monomer, and then carrying out a Friedel-Crafts reaction to obtain a hyperbranched terpolymer; S2. mixing components including the terpolymer and a solvent to obtain a casting solution, pouring, drying and obtaining a film; and S3. adsorbing phosphoric acid on the film, and the high-temperature proton exchange membrane is obtained. The high-temperature proton exchange membrane has excellent proton conductivity, proton conductivity retention rate, phosphoric acid retention rate and peak power density under the condition that the phosphoric acid adsorption amount of the high-temperature proton exchange membrane is unchanged or reduced, and is suitable for preparing a high-performance high-temperature proton exchange membrane fuel cell with excellent durability.

This organic thin film for a photoelectric conversion element contains a compound represented by formula (1), where the content of the compound represented by formula (1) is 60 mass % or more based on the total mass of the organic thin film for a photoelectric conversion element. In formula (1), Ar1 and Ar2 are aryl groups different from each other, and Ar1 is a group represented by formula (2). In formula (2), R1, R2, R3, R4, and R5 are each independently a hydrogen atom, a halogen atom, or a monovalent organic group having a Hammett substituent constant σp of 0 or more. One or more of R1, R2, R3, R4, and R5 are a halogen atom or a monovalent organic group having a Hammett substituent constant σp of 0.230 or more. Any adjacent R1, R2, R3, R4, or R5 may be a part of a condensed aliphatic ring or a condensed aromatic ring. The condensed aliphatic ring and the condensed aromatic ring may contain one or a plurality of atoms other than carbon.

A polishing liquid for CMP, the polishing liquid containing abrasive grains, a nitrogen-containing compound, and water, in which the abrasive grains include cerium-based particles, and the nitrogen-containing compound includes a compound A1 having a fused ring (a fused ring having an aromatic five-membered ring with one nitrogen atom), a compound A2 having a quinoline ring and one hydroxy group bonded to the quinoline ring, a compound A3 having an aromatic ring and a hydroxy group bonded to a nitrogen atom, or a compound A4 having a nitrogen-containing aromatic ring to which at least one selected from the group consisting of a hydroxy group and an amino group is bonded.

To provide a polymerizable liquid crystal composition, an optically anisotropic layer, an optical film, a polarizing plate, and an image display device, which can suppress generation of precipitates. The polymerizable liquid crystal composition of the present invention contains: a positive wavelength dispersion liquid crystal compound A having an aromatic ring with a π electron number of 10 or more; and a positive wavelength dispersion liquid crystal compound B having an aromatic ring with a π electron number of 6 or more and less than 10.

The present disclosure relates to an encapsulating material including a compound having a structural unit represented by formula (Bb1) (in formula (Bb1), XE represents an organic group including an aromatic ring (wherein the organic group does not include a structure represented by formula (X1) or formula (X2)), each B independently represents a group including a vinyl phenyl group, each R independently represents a substituent, and each R independently represents a substituent. L represents an integer of 1-5, and m represents an integer of 0-10).

To provide a pressure-sensitive adhesive composition capable of forming a pressure-sensitive adhesive sheet having a high refractive index and capable of forming a pressure-sensitive adhesive sheet more suitable for use in an image display device usable under various environments.SOLUTION: The provided pressure-sensitive adhesive composition contains at least one selected from the group consisting of a monomer component M and a polymer thereof, wherein the monomer component M contains a monomer a containing an aromatic ring and not containing a nitrogen atom, a monomer b containing a ring structure containing a nitrogen atom, and a monomer c containing a hydroxyl group. The sum of the content of the monomer (a) and the content of the monomer (b) in the monomer component M is ≥ 50 wt.%. The monomer component M contains the monomer b in an amount of 0.1 to 8 wt%.SELECTED DRAWING: Figure 1

The application belongs to the technical field of lubricating oil additives, and particularly relates to a polyisobutylene succinimide dispersant as well as a preparation method and application thereof. The preparation method comprises the following steps: mixing polyisobutylene maleic anhydride, base oil and aromatic hydrocarbon solvent, then adding aminobenzene boronic acid, and performing reaction by increasing temperature to reflux temperature, and obtaining the polyisobutylene succinimide dispersant after filtration. The polyisobutylene succinimide dispersant is prepared by using polyisobutylene maleic anhydride and aminobenzene boronic acid, the molecular structure of the polyisobutylene succinimide dispersant contains not only an aromatic ring but also an oxygen-containing benzene boronic acid group, the aromatic ring and the benzene boronic acid group both have a good adsorption effect on soot particles, and the ability of the polyisobutylene succinimide dispersant to disperse soot is improved. The performance test results show that the oil product prepared by using the polyisobutylene succinimide dispersant of the application not only improves the soot dispersion performance of the oil product, but also improves the high-temperature detergency of the oil product, and the preparation process is simple and easy to implement.

A self-cross-linkable polymer including unit structures A that have an aromatic ring and unit structures B that are organic groups with a connecting carbon atom, wherein: at least one kind of unit structure A is (i) a unit structure in which an —NR— bond connects at least two aromatic rings, (ii) a unit structure including a heterocyclic structure having at least one —NR— bond as a ring structural element, or (iii) a unit structure including an aromatic ring that has at least one —NR2 substituent group; R is a hydrogen atom or alkoxymethyl group; at least some of the Rs in the entire polymer are alkoxymethyl groups; and the connecting carbon atom is a carbon atom in a unit structure B that forms a covalent bond with an aromatic ring in a unit structure A and is a carbon atom that does not form an aromatic ring.

The present invention provides a composition for electrode formation. In the composition, thickening and gelation of electrode slurry are inhibited by a simple method. The composition exhibits improved storage stability and comprises: an organic acid containing an optionally substituted aromatic ring and a linker; a positive electrode active material; a conductive additive; a binder; and a solvent.

The invention discloses a high-elongation dielectric composition, a preparation method and an application method thereof, and a substrate. The dielectric composition with high elongation rate comprises high-molecular resin and inorganic filler, wherein the polymer resin comprises bonding resin, and the bonding resin comprises epoxy resin and phenolic resin; the structural resin is selected from at least one of a polymer with a main chain containing an aromatic ring and / or a heterocyclic ring and a rubber polymer; the dielectric constant of the inorganic filler is not less than 2000 in the frequency range of 1kHz to 1GHz. Through a specific synergistic resin system, the high dielectric constant and the high elongation rate are achieved at the same time, the excellent melt viscosity, the excellent heat resistance, the low thermal expansion coefficient and the low hygroscopicity are achieved, and the defects of layering and plate explosion caused by poor fluidity, poor mechanical performance and mismatching of thermal stress in the manufacturing process of an existing high-Dk material are overcome.

The invention belongs to the technical field of organic synthesis, and discloses a symmetric disulfide compound containing a sulfoxide group and application of the symmetric disulfide compound in glycosylation reaction, and the structural general formula of the compound is as shown in formula (I). According to the present invention, the compound represented by the structural general formula (I) contains sulfoxide and disulfide structures, and the sulfinyl forming the sulfoxide and the disulfide bond-containing group are located at the ortho-position of the aromatic ring, such that the compound can be used as the activation reagent for the glycosylation reaction, and particularly, activation of the glycosyl donor and glycosylation reaction can be efficiently promoted by only using 0.25 times of equivalent weight of the glycosyl donor, so that the use of a highly toxic, expensive, unstable or metal-containing activating reagent is avoided, and the problems that the activating reagent of the thioglycoside donor in the existing glycosylation reaction is unstable, is not easy to prepare and often needs equivalent weight or excessive amount are solved.

A method for controlling carbon deposits in an internal combustion engine using a nitrogen-containing surfactant is disclosed. The nitrogen-containing surfactant is 【Chemical 1】 JPEG2026511712000032.jpg1961 defined as or its acceptable salts, [wherein X 1 and X 2 are independently H, C, N, O, or S, and X 1 or X 2 independently contains one or more C2-C 20 alkyl groups or one or more aromatic rings, and each A, B, and D is selected from hydrogen, a monovalent organic group, and a monovalent heterocyclic organic group in the form of a group or moiety bonded through a carbon atom, and any two or more of A, B, and D may optionally be bonded together to form a cyclic structure, and X 1 and X 2 may optionally be bonded together to form a cyclic structure], or one or more nitrogen-containing surfactants selected from aliphatic hydrocarbyl-substituted amines or hydrocarbyl-substituted poly(oxyalkylene)amines. Fuel compositions and concentrate compositions containing the nitrogen-containing surfactant are also disclosed.

The application belongs to the field of chemical drugs, and discloses a BTK protein degrading agent with a silicon-containing group as a hydrophobic tag, a preparation method, a pharmaceutical composition and application thereof.The structure of the BTK protein degrading agent with the silicon-containing group as the hydrophobic tag is shown in formula I, the linker is a saturated aliphatic chain, an unsaturated aliphatic chain, a connecting structure composed of an aromatic ring and a saturated aliphatic chain, or a connecting structure composed of an aromatic ring and an unsaturated aliphatic chain; and R is a specific silicon-containing group as the hydrophobic tag.A BTK protein degrading agent with a silicon-containing group as a hydrophobic tag is obtained, the preparation process is simple and easy to implement, the obtained BTK protein degrading agent has high liver microsomal metabolic stability, has considerable oral bioavailability, shows high treatment efficiency in in-vivo experiments, has a certain inhibitory effect on the proliferation of various tumor cells, and is suitable for the development of cancer drugs such as leukemia.

The invention relates to the technical field of biological medicines, in particular to an anti-tumor compound as well as a preparation method and application thereof. The nano-diamond cannot effectively kill tumor cells due to good biocompatibility, and the ferrocene with an aromatic ring structure is combined with the nano-diamond, so that a good anti-tumor effect can be fully exerted. The TAT-PEG-PLGA has the advantages that the TAT-PEG-PLGA is high in membrane penetrating capability, water solubility, biocompatibility, stability and targeting property; the TAT-PEG-PLGA with adsorption force on the surface is used for loading the ferrocene-nano-diamond and the adriamycin to obtain the anti-tumor compound, so that the ferrocene-nano-diamond and the adriamycin can effectively enter tumor cells to jointly play an anti-tumor effect. The obtained anti-tumor compound can effectively inhibit the activity of melanoma cells A375, is an effective tumor inhibitor, and can provide a new treatment strategy and choice for tumor treatment.

A polyamide acid according to the present invention includes a tetracarboxylic acid dianhydride residue and a diamine residue. The tetracarboxylic acid dianhydride residue includes a 3,3',4,4'- biphenyltetracarboxylic acid dianhydride residue. The diamine residue includes a p-phenylenediamine residue and a siloxane diamine residue. At least one of the tetracarboxylic acid dianhydride residue and the diamine residue further includes a residue derived from a compound in which a plurality of aromatic rings are linked via a linking group. The linking group is one or more items selected from the group consisting of ether groups and ester groups.