50 results about "Macromolecular Compounds" patented technology

The present invention relates to the technical field of chemical wastewater treatment, and is a method and device for treating methanol reaction wastewater. The former is carried out according to the following method: First step, the wastewater generated after methanol reaction is subjected to sedimentation to remove particulate wastes, oil removal to remove organic matters in the upper layer of the wastewater, and filtration to remove particulate matters, suspended matters and organic macromolecular compounds suspended in the wastewater; Second step, a pretreatment agent is added to the wastewater treated in the first step for pretreatment to remove part of the organic matters in the wastewater; Third step, the wastewater treated in the second step is subjected to preheating treatment to make it reach the gasification state; Fourth step, the wastewater preheated and gasified in the third step undergoes a catalytic reaction with nitrogen or hydrogen under the action of a catalyst. The present invention can significantly improve the pH and COD indexes of the wastewater and meet the standard requirements for the discharge of industrial wastewater. The method has the characteristics of mild reaction conditions, short and simple process flow, and small equipment investment.

A macromolecular compound for providing an organic semiconductor material exhibiting excellent conversion efficiency; a starting-material compound having high material design freedom; and methods for producing thereof. The macromolecular compound comprising a benzobisthiazole structural unit is represented by the formula (1):in the formula (1), T1, T2, B1, and B2 represent heteroaryl groups, the heteroaryl groups are optionally each independently substituted by an organosilyl group, a halogen atom, or a hydrocarbon group, and at least one of the heteroaryl groups represented by T1, T2, B1, and B2 is substituted by a halogen atom.

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 present invention discloses a method for preparing a shell-based slurry bed hydrogenation catalyst, comprising: washing, drying, coarsely crushing and pulverizing discarded shells to obtain shell powder; immersing the shell powder in an aqueous solution of ferric nitrate to obtain an iron shell powder mixture, drying to obtain iron-containing shell powder; immersing the iron-containing shell powder in an aqueous solution of anionic surfactant, drying to obtain a shell-based slurry bed hydrogenation catalyst. The present invention also discloses a shell-based slurry bed hydrogenation catalyst and its application. The preparation method of the present invention is simple and low in cost. The prepared shell-based hydrogenation catalyst has a rich pore structure and internal and external surface areas, which can maximize the loading or deposition of macromolecular compounds such as asphalt and colloid in inferior heavy oil, and can convert low-value-added inferior heavy oil into feed for fixed bed hydrogenation device, and finally into clean fuel products, which significantly improves its economy and has broad application prospects in the field of inferior heavy oil processing.

The present invention discloses a modification method for polyethylene suspension fillers used in a moving bed biofilm reactor. This method uses polyethylene fillers as the matrix. After treating the surface of the fillers with an acidic potassium dichromate mixed solution, it is immersed in an aqueous solution of a coupling agent (silane coupling agent KH-560, silane coupling agent KH-570, titanate coupling agent CS-311), and activated carbon powder and gelatin protein as modifiers are added, successfully loading activated carbon and gelatin protein onto the surface of the fillers. Based on conventional polyethylene fillers, after treating the surface with an acidic potassium dichromate mixed solution, the present invention utilizes the cross-linking reaction of the coupling agent with macromolecular compounds to make the surface of the fillers carry hydrophilic groups such as hydroxyl and carbonyl groups, providing favorable conditions for the rapid growth of microorganisms on the surface of the fillers and enhancing the film-forming effect of the fillers. During the sewage treatment process, it is superior to conventional fillers in terms of the film-forming speed of the fillers, the amount of biofilm, the tightness between the biofilm and the carrier, and the microbial activity, etc.

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.

The invention relates to the field of agricultural fertilizers, in particular to a silicon-containing humic acid water-soluble fertilizer and a preparation method thereof.The silicon-containing humic acid water-soluble fertilizer is prepared from, by weight, 0.3%-0.8% of an HH2017 dispersing agent, 3%-8% of potassium humate, 6%-10% of monopotassium phosphate, 28%-35% of anhydrous potassium silicate, 0.2%-0.4% of a chelating agent, 0.2%-0.4% of a surfactant and the balance water; the silicon-containing humic acid water-soluble fertilizer disclosed by the invention contains a plurality of components, can provide sufficient nutrition for crops, especially for silicon-loving crops, and can effectively promote the growth of the crops. And the potassium humate is rich in a large amount of organic macromolecular compounds such as active functional groups including carboxyl, phenolic hydroxyl and the like, has relatively strong adsorption, exchange, complexing and chelating capabilities, and can promote the absorption and utilization of nutrients on the surfaces of crop leaves by matching with silicate, a surfactant and a chelating agent, so that the nutrient utilization rate is increased. A large amount of silicon elements can be supplemented for crops, and meanwhile, macroelements phosphorus and potassium can be supplemented, so that the effects of increasing the crop yield and improving the stress resistance of the crops are achieved.

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.

The invention discloses a hydroxy propyl cellulose-based structural color water-based pigment and a preparation method thereof, and belongs to the field of compositions of high-molecular compounds. Comprising the following steps: adding waterborne polyurethane into a certain volume of aqueous solution to obtain a polyurethane dilute solution; hydroxypropyl cellulose is dissolved in a polyurethane dilute solution, a cholesteric photonic crystal structure is formed through self-assembly, a bright structural color is presented, and the hydroxy propyl cellulose structural color water-based pigment is prepared. And uniformly coating the surface of the fabric with the hydroxy propyl cellulose structural color pigment, and placing the fabric at 70-90 DEG C for curing and drying to retain the color of the photonic crystal so as to obtain cellulose-based structural color coatings with different colors. According to the invention, the color of the structural color pigment derives from self-assembly of the hydroxy propyl cellulose in an aqueous solution, and different colors completely depend on the molecular weight, concentration and drying temperature of the hydroxy propyl cellulose; the method is suitable for preparing structural color pigments of various photonic crystals.

The invention relates to the field of derivatives of natural high-molecular compounds, and discloses a preparation method and a particle size prediction method of aldehyde-stabilized lignin and monodisperse lignin microspheres thereof. The method comprises the following steps: mixing an aldehyde compound with an organic solvent, adding an acidic reagent and a biomass raw material, and reacting under heating and stirring conditions to obtain the stable acetal lignin. The aldehyde-stabilized lignin is finally obtained through the steps of solid-liquid separation and precipitation separation of a concentrated solution. The obtained aldehyde-stabilized lignin can be directly used for preparing monodisperse lignin microspheres, the obtained microspheres have the advantages of uniform particle size and good dispersibility, and the PDI value is less than 0.1. The particle size of the lignin microspheres can be accurately controlled by adjusting Hansen solubility parameters of the solvent. The method disclosed by the invention has the advantages of simplifying the process, improving the stability, enhancing the particle size controllability and efficiently utilizing the lignin, and provides a new way for high-valued application of the lignin.

The invention relates to a deep regeneration method of macroporous resin for adsorbing waste gas, and belongs to the technical field of resin regeneration. The regeneration method comprises the following steps: adding an organic solvent, a sodium hydroxide aqueous solution and a phase transfer catalyst into resin to be regenerated, heating, stirring, carrying out solid-liquid separation, and washing the resin to obtain regenerated macroporous resin. The organic solvent is used for eluting the adsorbate in the macroporous resin, and the phase transfer catalyst is used for promoting the separation of the macromolecular compound and the macroporous resin, so that the macromolecular compound which is difficult to remove by the organic solvent can be deeply removed, the resin can be deeply regenerated, and the service life of the resin is prolonged.

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 present invention provides a dendrimer compound for nucleic acid delivery, a composition thereof, and a preparation method and application thereof. The preparation steps and operation steps of the dendrimer compound of the present invention are simple, the raw materials are simple and easy to obtain, the requirements for instrument and equipment are low, the reaction conditions are mild and safe, and the yield of the target product is high. The dendrimer compound obtained by the present invention has excellent biosafety; and it is used as a nucleic acid delivery vector with preventive or therapeutic properties, having a high transfection efficiency. The dendrimer compound of the present invention can be used in combination with other lipid components in a specific ratio to form a dendrimer-based lipid nanoparticle composition for delivering preventive or therapeutic agents (such as therapeutic nucleic acids), so as to achieve the purpose of delivering nucleic acids from outside the cell to inside the cell in vitro or in vivo.

The invention relates to hyperbranched benzoxazine resin containing P-N-Si and a preparation method of the hyperbranched benzoxazine resin. Belongs to the technical field of high-molecular compounds, and the hyperbranched flame-retardant toughened benzoxazine resin is obtained by synthesizing a toughened benzoxazine monomer containing three flame-retardant elements P-N-Si through a one-step method and then heating and carrying out a ring-opening crosslinking reaction. By virtue of a unique P-N-Si ternary flame-retardant system, the excellent flame-retardant property is shown. Compared with a traditional benzoxazine material, the benzoxazine material has the advantages that the thermal stability is remarkably improved, flame spreading can be effectively inhibited in a high-temperature environment, the combustion rate is reduced, and a solid guarantee is provided for safe application of the material. Meanwhile, the toughening property endows the material with more excellent mechanical properties, the brittleness of the material is effectively improved, the impact resistance of the material is enhanced, and the application range is widened.

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.

A leaded solder paste flux for a photovoltaic nickel substrate and a preparation method thereof. By weight percentage, the flux is composed of 38-45% of a compound rosin, 6-8% of a compound thixotropic agent, 6-8% of a compound organic acid, 3-5% of a whitening agent, 8-9% of a compound tackifier, 0.2-0.6% of a compound organic halogen activator, 0.5-0.8% of an antioxidant, and the balance of a compound solvent. Heat and stir the compound rosin, compound thixotropic agent, whitening agent, antioxidant, compound tackifier and compound solvent until melted at 170-172 °C, cool down to 153-157 °C, then add a macromolecular compound organic carboxylic acid and an ionic organic halogen activator, and then cool down to 145-147 °C and add a covalent organic halogen activator. Keep stirring at a constant temperature of 140-145 °C until completely dissolved and well mixed to prepare the flux. The flux of the present invention has high activity, good wettability for nickel-plated plate welding, good anti-collapse performance, good build-up height, less residue, and good anti-drying performance, and can ensure the reliability after welding.

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.