31 results about "Macromolecular Compounds" patented technology

The present application relates to the field of macromolecular compounds connected to the polymer of styrene or alkyl-substituted styrene, in particular to a LED-sensitive ketoxime ester type water-soluble photoinitiator based on styryl pyridine salt and its manufacturing method and application. The LED-sensitive ketoxime ester type water-soluble photoinitiator based on styryl pyridine salt is characterized in that: a styryl group is connected to a pyridine ring to form a diaryl ethylene structure, and a ketoxime ester is connected to the para position of the double bond on the benzene ring. The manufacturing method of the LED-sensitive ketoxime ester type water-soluble photoinitiator based on styryl pyridine salt is characterized in that: the reaction is carried out according to the reaction formula (a), (b), (c) and (d) in sequence. The present application has good light absorption performance and good matching with LED light source.

The application discloses a heating transmission device suitable for in-situ detection of ultrahigh-temperature pyrolysis reaction, comprising a heating pipe and an adjusting assembly; a sample outlet end of the heating pipe is connectable to a detection device; the heating pipe is divided into a low-temperature zone, a high-temperature zone and an annealing zone; a first water-cooled electrode is arranged outside the low-temperature zone; and a second water-cooled electrode is arranged outside the annealing zone; the adjusting assembly comprises a guide rail and a sliding block; and the sliding block is connected with the first water-cooled electrode or not. The application forms a variable-diameter and variable-temperature zone through combination design of the heating pipe and the water-cooled electrode, guarantees contact between the heating pipe and the protective electrode, builds a relatively slow and uniform temperature gradient in the annealing zone, guarantees generation and dispersion of product molecules and improves transmission efficiency of macromolecular compounds. The application is convenient to connect with a mass spectrometer, can realize in-situ analysis of ultrahigh-temperature pyrolysis reaction and solves the problem that macromolecular products such as polycyclic aromatic hydrocarbons, fullerenes and the like cannot be detected in-situ due to aggregation caused by intermolecular forces in the pyrolysis reaction.

This invention discloses a viscosity-reducing and enhancing agent, a viscosity reducer, and a method for treating high-viscosity wastewater from oil fracturing, belonging to the field of high-viscosity wastewater treatment from oil fracturing. It comprises 1000 parts of a dendritic polyamide-amine macromolecular compound; 0.1-200 parts of granular or powdered solid acid; and 65-3000 parts of ferrous salt. This invention uses a composition of dendritic polyamide-amine macromolecular compound, aminosulfonic acid, and ferrous salt as a viscosity-reducing and enhancing agent. It can effectively activate persulfate for oxidation at room temperature. The activation of persulfate by the activator of this invention can rapidly reduce the viscosity of fracturing fluid return wastewater, reducing it to near-viscosity within 3-10 minutes. Furthermore, the dosage of the activator is small, accounting for only 10-30% of the persulfate amount, making it more environmentally friendly.

The invention discloses an organic monocyclic macromolecular compound electrode material, a preparation method and application of the organic monocyclic macromolecular compound electrode material in a lithium ion battery. The organic monocyclic macromolecular compound electrode material is a monocyclic polybenzoquinone derivative which is obtained by carrying out dehydration condensation reaction on tetraaminobenzoquinone and disodium rose acid. The organic monocyclic macromolecular compound has a relatively large conjugated system and a relatively large aperture structure, is beneficial to full exposure of active sites and rapid transmission of ions, and remarkably inhibits the dissolution behavior of a material in an organic electrolyte, so that the cycling stability and the rate capability of a battery are remarkably improved. The molecular structure of the material contains a plurality of redox active sites (C = O and C = N), and can be reversibly coordinated with lithium ions to realize efficient lithium storage. The organic monocyclic molecular compound electrode material has high capacity, high stability and excellent rate capability, shows excellent electrochemical performance in a lithium ion battery system, and has high energy density and long service life.

A hydrophobic latex polymer having a small particle size is disclosed. Polymerized via a reaction mixture including a hydrophobic monomer, a macromolecular organic compound having a hydrophobic cavity such as a cyclodextrin, a surfactant that is sterically hindered from complexing with the macromolecular compound, and an initiator, the resulting latex polymer has a small polymer size, lacks grit, and is producible without undesirable reactor deposits.

The disclosure provides an electrochemical device mixture capable of providing a mixture sheet exhibiting excellent strength and excellent flexibility while containing a small amount of binder, and an electrochemical device mixture sheet, an electrode, and an electrochemical device each containing the electrochemical device mixture. The electrochemical device mixture contains an electrode active material and / or a solid electrolyte; and a binder. The binder contains a tetrafluoroethylene-based polymer composition. the tetrafluoroethylene-based polymer composition contains a tetrafluoroethylene-based polymer and a macromolecular compound containing an ionic group. The binder is contained in an amount of 0.3% by mass or more and 8% by mass or less relative to the electrochemical device mixture.

Provided are a tetrodotoxin conjugate, a method for preparing same, and use thereof. A carboxyl-containing macromolecular compound and tetrodotoxin are used as the starting materials, and after a catalyst and a solvent are added, the tetrodotoxin conjugate is obtained by means of a coupling reaction. The carboxyl-containing macromolecular compound is selected from carboxylated dextran, carboxylated β-cyclodextrin, alginic acid, and polyacrylic acid. The tetrodotoxin conjugate can be used in the preparation of a sodium channel blocker and a medicament for treating neuropathic pain caused by chemotherapy, and possesses an analgesic effect associated with tetrodotoxin (TTX). In addition, the therapeutic window is increased, thereby greatly improving the safety.

This application discloses a modified asphalt composition, its preparation method, uses, and modified asphalt waterproofing membrane. The modified asphalt composition is made from the following raw materials in percentage: 100 PHR of first-component asphalt; 60-80 PHR of second-component asphalt; 10-20 PHR of temperature-stable powder; 4-8 PHR of carbon nanotubes; 4-8 PHR of asphalt mastic; and 3-7 PHR of hydrogenated styrene-butadiene block copolymer. The composition uses a mixture of the first and second asphalt components as a carrier, and incorporates high-toughness, deformation-resistant materials such as the temperature-stable powder, carbon nanotubes, asphalt mastic, and hydrogenated styrene-butadiene block copolymer to form a modified asphalt composition composed of a macromolecular compound connected by repeating units. This composition is used to modify polyester tires, filling the voids within the asphalt molecules with the modified asphalt composition, forming a three-dimensional network structure. The asphalt mastic and hydrogenated styrene-butadiene block copolymer optimize the rheological properties of the asphalt, ensuring that the asphalt maintains good deformation resistance.

Provided is a macromolecular compound that, when used in a photoresist resin composition, has high sensitivity and excellent resolution, can accurately form a fine pattern, and can reduce the occurrence of development defects. Also provided is a photoresist resin composition that has high sensitivity and excellent resolution, can accurately form a fine pattern, and can reduce the occurrence of development defects.　The macromolecular compound contains at least a monomer unit a represented by formula (a) and a monomer unit b having an alicyclic skeleton that has a polar group (however, this does not include a monomer unit c represented by formula (c)). The monomer unit c content is less than 5 mol% relative to all of the monomer units constituting the macromolecular compound.

To provide an electric or electronic device having excellent heat resistance and moisture resistance. The electric or electronic device of the present disclosure having a configuration including a first electrode layer, a conductive material layer, and a second electrode layer that are layered in this order,the conductive material layer containing a conductive material having a configuration in which a conjugated macromolecular compound is doped with an anion selected from the group consisting of a nitrogen anion, a boron anion, a phosphorus anion, and an antimony anion. The anion is preferably an anion represented by Formula (a-1) or (a-2).

The present application belongs to the technical field of chemistry, pharmacy, medicine and other multi-disciplinary, more specifically, a kind of hydroxyalkyl starch-photosensitizer coupled amphiphilic macromolecular compound, nano drug delivery system and its preparation method and application are disclosed.The present application uses hydrophobic porphyrin heterocyclic macrocyclic organic compound photosensitizer as the hydrophobic end, coupled with hydroxyalkyl starch, and assembled into nanoparticles with hydroxyalkyl starch-platinum (IV) conjugate.The experiment found that the amphiphilic macromolecular compound can improve the water solubility of photosensitizer, and also can maintain the photodynamic characteristics of photosensitizer, give its targeting tumor characteristics, improve the bioavailability of photosensitizer, and the added hydroxyalkyl starch-platinum (IV) conjugate can release cisplatin in vivo, inhibit the activity of thioredoxin reductase, destroy the tumor redox balance, promote the effect of photodynamic therapy, realize the targeted combination therapy of antitumor drugs.

Provided is a novel sulfur-containing polymer and a method for producing the same, a composition comprising the novel sulfur-containing polymer, and a sulfur-containing compound. The sulfur-containing macromolecular compound of the present invention has a structural unit represented by, for example, the following formula (1):wherein in formula (1), n represents a number of 1 or more, R represents an organic group, and R1 represents a divalent organic group derived from a polycondensable functional group. The method for producing a sulfur-containing macromolecular compound of the present invention comprises reacting a linear sulfur polymer and compound C having two polycondensable functional groups to obtain a sulfur-containing macromolecular compound.

The present disclosure relates to a bioflavonoid composition comprising a bioflavonoid, at least one surfactant with a molecular weight between 300 and 1500 g / mol, and optionally a macromeric compound. The composition exhibits enhanced solubility and bioavailability and may be formulated into various delivery formats, including hard gelatin capsules and nutraceutical food products. The present disclosure also relates to a process for preparing the composition involves mixing the bioflavonoid with optional polysaccharides and suspending agents, followed by the addition of an aqueous surfactant and binder solution. The composition of the present disclosure is suitable for use in dietary supplements or medicaments and may be administered to manage various health conditions or disorders.

The application belongs to the technical field of polymer synthesis, and relates to a polyester macromolecular compound and a synthesis method thereof. The method uses a heterocyclic lactone of formula 1 as raw material, uses an organic base as a catalyst, and performs ring-opening polymerization under the condition of an initiator to obtain the polyester macromolecular compound. The application first realizes the preparation of the polyester macromolecular compound. The raw material heterocyclic lactone used in the method has a simple preparation method, is widely sourced, the catalyst used has a simple preparation method, is low in cost and good in activity, and the application can effectively alleviate the harm caused by the greenhouse effect. The application also discloses application of the polyester macromolecular compound. The polyester macromolecular compound has good physical and chemical properties and recyclability, and has a wide application prospect.

The present application relates to a kind of methods for screening active ingredients of salvia miltiorrhiza and chuanxiong as tissue factor inhibitors and purposes, comprising: according to the requirement of pharmacophore model construction, obtain small molecule compounds with inhibiting TF coagulation activity as data set, data set is split into training set and test set, construct pharmacophore with activity prediction ability;With the pharmacophore with activity prediction ability constructed from multiple active ingredients of salvia miltiorrhiza and chuanxiong Virtual screening active molecule, multiple small molecule compounds with inhibiting TF coagulation activity are screened;Determine the macromolecular compound of TF related protein from PDB database;Using molecular docking software, small molecule compounds with inhibiting TF coagulation activity are screened, and docking is carried out with the macromolecular compound of TF protein, the docking result is combined to form complex, and the result is visualized using Schrodinger, the purpose is to find new small molecule inhibitors, obtain TF inhibitor with good bioavailability.

The application discloses a biomass conversion catalyst and a preparation method and application thereof, the catalyst comprising a carrier and an active metal component, the active metal component being distributed on the surface and in the pores of the carrier; the carrier is a core-shell structure comprising a core and a shell layer, the core being ZSM-5 molecular sieve containing micropores and mesopores, and the shell layer being mesoporous MCM-41 molecular sieve. The application further provides a preparation method and application of the biomass conversion catalyst. By adjusting the pore structure of the carrier and introducing the metal active phase, a high-activity composite structure catalyst is formed, which integrates catalytic cracking, reforming and carbon deposition inhibition and the like in one, realizes efficient and accurate cracking of macromolecular compounds in raw materials in a catalytic pyrolysis reaction, effectively inhibits carbon deposition, reduces the occurrence of side reactions, and obtains high-quality bio-oil products.

The application provides a method for measuring the diffusion coefficient of macromolecular compounds, especially petroleum resin polymers, in a porous medium. An in-situ infrared spectrometer equipped with a high-precision MCT detector is used as an online concentration detection device to build a diffusion coefficient testing device suitable for macromolecular compounds such as DCPD petroleum resin, and the device is used to measure the adsorption curve of resin molecules in a porous medium with different pore diameters, and then the diffusion coefficient of the molecules in the porous medium with different pore diameters is calculated by combining a mathematical model. The method helps to solve the shortcomings that macromolecular compounds with high viscosity, poor fluidity and difficult gasification are difficult to test the diffusion coefficient by using traditional methods, and greatly widens the application range of the diffusion coefficient testing method. The device is easy to build, the testing process is simple to operate, and the measurement precision is high, so the method is an effective method for measuring the diffusion coefficient of macromolecular compounds in a porous medium.

The invention belongs to the technical field of azo dyes, and particularly provides an azo type bright yellow polymer dye and a preparation method thereof, and the azo type bright yellow polymer dye has a structural general formula as shown in formula (I), wherein A and B can be the same or different; a and B are respectively and independently selected from the following groups: an amino-containing hydrophilic micromolecule group and an amino-containing hydrophilic macromolecular compound group. The azo bright yellow polymer dye prepared by the invention has the advantages of temperature resistance, weather resistance and good washability.

The disclosure provides a tetrafluoroethylene-based polymer composition for a binder for an electrochemical device which can not only reduce or prevent gas generation inside the cell of an electrochemical device and deterioration of characteristics of the electrochemical device but also improve the strength of a mixture sheet, as well as a binder for an electrochemical device, an electrode mixture, an electrode, and a secondary battery each containing the composition. The tetrafluoroethylene-based polymer composition is a tetrafluoroethylene-based polymer composition for use in a binder for an electrochemical device. The composition contains a tetrafluoroethylene-based polymer and a macromolecular compound containing an ionic group and is substantially free from water.

The invention discloses a preparation method for synthesizing a biological conjugate (ConA-MB) of methylene blue (MB) and concanavalin A (ConA) and application of the biological conjugate. According to the preparation route, methylene blue reacts with sarcosine to generate a compound II, and the compound II is coupled with ConA to form the ConA-MB macromolecular compound. The ConA-MB can effectively target periodontal pathogenic bacteria such as fusobacterium nucleatum and porphyromonas gingivalis, and the mechanism of the ConA-MB is that the ConA can specifically recognize lipopolysaccharide of an outer membrane of the bacteria and destroy bacterial cells, so that methylene blue enters the bodies of the bacteria, the targeted enrichment of the MB in the bacteria is improved, and the antibacterial effect is achieved. A photodynamic experiment proves that compared with pure MB, ConA-MB shows a higher combination speed and a stronger sterilization effect.

The invention provides the method for identifying the polypeptide and the protein in the active extract CII-3 of the periplaneta americana, the components such as the polypeptide and the protein can be analyzed through a nano-liter liquid phase and high-resolution mass spectrum tandem technology, and the identification work of corresponding macromolecular compounds is completed in combination with database matching. The invention fills the blank of CII-3 macromolecular substance research, enriches the material basis of CII-3, and provides macromolecular compound information for further development of related researches such as pharmacodynamic material basis, action target and the like of periplaneta americana series products taking CII-3 as a raw material.

The application discloses a method for photoinduced deconstruction of waste and old rubber, and utilizes the chemical reaction principle that nitroaromatic compounds can occur radical cycloaddition with carbon-carbon double bond under ultraviolet light induction to generate "N-doped" ozonide, and further generate terminal carbonyl compounds through hydrolytic ring cleavage, so as to deconstruct the waste and old rubber. The photoinduced deconstruction method has the advantages of mild reaction condition, low energy consumption, high safety, green environmental protection and the like, and the deconstruction product containing active terminal carbonyl can be obtained after rubber cracking, which lays an important structural foundation for further molecular design, functional group modification and synthesis of novel organic small molecules and macromolecular compounds, and can effectively realize molecular level regeneration and resource recycling of the waste and old rubber, and opens up a new path for low-carbon and sustainable development of the rubber industry.

The utility model provides a system for filtering, adsorbing and removing foaming factors in organic amine, which comprises a three-stage filtering unit, the three-stage filtering unit comprises a coarse filter, an activated carbon filter and a fine filter, and an outlet of the three-stage filtering unit is provided with a powdered activated carbon adsorption unit; the powdered activated carbon adsorption unit comprises a first mixing tank and a second mixing tank which are communicated with the outlet of the fine filter, and separators communicated with the first mixing tank and the second mixing tank are arranged at the outlets of the first mixing tank and the second mixing tank; according to the utility model, through the first mixing tank and the second mixing tank, an organic amine liquid which is discharged from the outlet of the filter and is subjected to preliminary filtration is efficiently reacted with powdered activated carbon introduced into the first mixing tank and the second mixing tank, so that high-efficiency adsorption operation on hydrocarbons and macromolecular compounds is realized; the purification effect on the organic amine liquid is better, and the purification efficiency is higher.

The invention discloses a method for preparing an HZ beta composite molecular sieve supported nickel catalyst through self-depolymerization-hydrothermal synthesis, and relates to the technical field of composite molecular sieves, the method comprises the following steps: preparing a core-shell structure ZSM-5 and beta composite molecular sieve (Zbeta) by using a ZSM-5 molecular sieve partial self-depolymerization and programmed hydrothermal synthesis method, and obtaining Nix / HZ beta through ion exchange, a modified deposition-precipitation method and the like. The preparation method provided by the invention is simple, the synthesis time is short, the use and recycling effects of the catalyst are good, and the problems that metal active components are easy to lose in the use process of a supported catalyst and the contact and conversion efficiency of macromolecular compounds is relatively low due to the narrow aperture of a single molecular sieve are solved. When the HZbeta composite molecular sieve supported nickel catalyst is applied to a catalytic hydrogenation conversion process of aromatic compound related model compounds and separation of aromatic compound-rich components from coal tar residues, aromatic rings can be efficiently hydrogenated, and gt can be cracked; c-X bridged bonds are adopted, so that the purpose of converting aromatic compounds into cycloalkanes is achieved.

This invention relates to a method for deep regeneration of macroporous resin that adsorbs waste gas, belonging to the technical field of resin regeneration. The regeneration method includes adding an organic solvent, an aqueous sodium hydroxide solution, and a phase transfer catalyst to the resin to be regenerated; heating and stirring followed by solid-liquid separation; and washing the resin to obtain regenerated macroporous resin. This invention uses an organic solvent to elute adsorbates from the macroporous resin, while simultaneously using a phase transfer catalyst to promote the separation of macromolecular compounds from the macroporous resin. This allows for the deep removal of macromolecular compounds that are difficult to remove with organic solvents, enabling deep regeneration of the resin and extending its service life.

This invention belongs to the interdisciplinary technical field of chemistry, pharmacy, and medicine. More specifically, it relates to a hydroxyalkyl starch-photosensitizer macromolecular compound encapsulating anthraquinone drugs, a nanoparticle drug delivery system, and its preparation and application. The macromolecular compound has a hydrophilic end of hydroxyalkyl starch and a hydrophobic end of a hydrophobic organic cyanine dye molecule. This invention uses a hydrophobic organic cyanine dye molecule photosensitizer with photodynamic and photodetector properties as the hydrophobic end. After coupling with hydroxyalkyl starch, the constructed amphiphilic macromolecule can maintain the stability of the original photosensitizer and improve its water solubility. Furthermore, it can optimize its UV-Vis absorption peak to match the 660nm near-infrared laser irradiation used in photodynamic therapy. The oil-in-water nanosystem constructed through emulsification can also maintain the photodynamic and photodetector properties of the photosensitizer, successfully encapsulating hydrophobic antitumor drugs and achieving tumor-targeted combination therapy while improving the biocompatibility of the photosensitizer.

Provided are a macromolecular material comprising two or more types of polymers, which are less likely to be separated, and having excellent mechanical properties, a method for producing the same, and a macromolecular compatibilizing agent. The macromolecular material according to the present invention comprises a first macromolecular compound having a ring host group, and a second macromolecular compound free of the host group, and the second macromolecular compound penetrates through the ring of the host group in a skewering manner. The method for producing the macromolecular material according to the present invention comprises polymerizing a polymerizable monomer in the presence of the first macromolecular compound. The macromolecular compatibilizing agent according to the present invention comprises a macromolecular compound having a ring host group.

The preparation method comprises the following steps: adding a 1-hydroxyalkyl phosphonic acid diester monomer and a catalyst into a reaction kettle, stirring, reacting to obtain a 1-hydroxyalkyl phosphonic acid diester dendritic macromolecular compound crude product, and concentrating under reduced pressure to obtain the phosphorus-based dendritic macromolecular compound. And removing a low-molecular alcohol byproduct in the reaction to obtain the phosphorus-based dendritic macromolecular compound. According to the invention, the raw material 1-hydroxyalkyl phosphonic acid diester compound is used for self transesterification, the catalyst which is cheap and easy to obtain is used for catalyzing the reaction, the operation is simple and convenient, and the 1-hydroxyalkyl phosphonic acid diester dendritic macromolecular compound is synthesized with higher phosphorus content.

Disclosed is a microfluidic system having a housing and having at least one flow channel formed within the housing, wherein at least one element that has an ion exchanger mixed-bed resin is arranged in at least one sub-region of the flow channel, and at least the flow channel is formed from a porous material, wherein the ion exchanger mixed-bed resin is intended, by way of its anion and cation exchanger properties, to reduce the ion concentration of a salt or of a contaminating compound of a fluid medium that has macromolecular compounds and / or cellular structures.

The present invention is in the field of organic macromolecular compounds, their preparation, and compositions based thereon, in particular biobased extracellular polymeric substances, a method of forming said biobased extracellular polymeric substances, and a composite material comprising said biobased extracellular polymeric substances.