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847 results about "Organic polymer" patented technology

Macrocyclic covalent organic polymer material for inhibiting pi-pi stacking effect and application of macrocyclic covalent organic polymer material

The invention discloses a macrocyclic covalent organic polymer material for inhibiting a pi-pi stacking effect and application of the macrocyclic covalent organic polymer material, and belongs to the technical field of biological medicines. The preparation method comprises the following steps: adding 5, 10, 15, 20-tetra (4-ethynylphenyl) copper porphyrin and a macrocyclic monomer into an organic solvent in a protective atmosphere, and carrying out solvothermal reaction in the presence of a catalyst and alkali to obtain the macrocyclic covalent organic polymer material. According to the invention, 5, 10, 15, 20-tetra (4-ethynylphenyl) copper porphyrin and a macrocyclic monomer form a porous polymer MCP-CU-POP, the material utilizes the photo-thermal capability to combine the effects of simulated photo-thermal (PTT), photodynamic (PDT), peroxidase (PODs) and glutathione peroxidase (GSH-Px) to perform synergistic antibiosis, and the inherent characteristics of an infected microenvironment can also be utilized to induce death of bacteria, so that the antibacterial property of the material is greatly improved, and the antibacterial property of the material is greatly improved. And the microenvironment of the bacterial infection part can be adjusted, so that the recovery of the bacterial infection wound can be obviously accelerated.
Owner:AFFILIATED HOSPITAL OF WEIFANG MEDICAL UNIV

Modified castor oil-based polyurethane adhesive as well as preparation method and application thereof

The invention relates to the technical field of organic polymer adhesives, and particularly discloses a modified castor oil-based polyurethane adhesive as well as a preparation method and application thereof. The adhesive comprises two components, and the component A comprises the following components in parts by weight: 30.0-50.0 parts of modified castor oil and 0.0-30.0 parts of refined castor oil; the component B is prepared from the following components in parts by weight: 30.0 to 50.0 parts of polyisocyanate or a polyisocyanate modifier and 0.00 to 0.05 part of a dewatering agent; the modified castor oil is prepared from refined castor oil and cysteamine through a sulfydryl-alkene addition reaction. Amido of the modified castor oil is alkalescent, and the reaction speed of the modified castor oil and isocyanate groups is high; hydrogen bonds are easily generated between urea bonds generated by the reaction of amino groups and isocyanate groups, so that the adhesive is endowed with thixotropy and high strength. The adhesive disclosed by the invention is simple in composition, high in reaction speed and good in thixotropy and bonding strength.
Owner:YANTAI RUILONG CHEM TECH CO LTD

Preparation method, product and application of high-temperature-resistant flexible metallized ceramic nanofiber composite electrode

The invention belongs to the related technical field of flexible electrodes, and discloses a preparation method, a product and application of a high-temperature-resistant flexible metallized ceramic nanofiber composite electrode. The method comprises the following steps: carrying out electrostatic spinning on electrostatic spinning sol doped with an organic polymer to obtain a precursor of a flexible ceramic nanofiber membrane; carrying out primary high-temperature calcination on the precursor to remove the doped organic polymer so as to obtain a flexible ceramic nanofiber membrane; growing and coating a metal conductive layer on the surface of the flexible ceramic nanofiber membrane to obtain an electrode precursor; and carrying out secondary high-temperature calcination on the electrode precursor to obtain the required composite electrode. The invention also discloses a product obtained by the preparation method and application. According to the invention, the problem that the flexible sensor is not resistant to high temperature is solved.
Owner:HUAZHONG UNIV OF SCI & TECH

Inorganic meerschaum nanofiber prepared from epoxy graft modified meerschaum, preparation method of inorganic meerschaum nanofiber, coating and application of inorganic meerschaum nanofiber

The invention discloses an inorganic sepiolite nanofiber prepared from epoxy grafted modified sepiolite, and the structural formula of the inorganic sepiolite nanofiber is shown in the specification, wherein R represents a group of epoxy resin; the sepiolite is subjected to multiple modification, so that the specific surface area of the sepiolite is increased, and the stability, dispersity and compatibility of the sepiolite in an organic polymer are improved. The surface of the modified sepiolite has rich epoxy groups, when the sepiolite is used for a waterborne epoxy coating, epoxy on the surface of the modified sepiolite and waterborne epoxy can be reacted and combined together as long as a curing agent is added, the binding force of the sepiolite and the epoxy is further enhanced, the modified sepiolite is dispersed more uniformly in the demulsified epoxy, and the enhancement effect is better. And the modified sepiolite can also be directly used as a coating, only the curing agent needs to be added at the moment, and the curing agent can react with epoxy grafted with the modified sepiolite to form a consolidated sepiolite fiber network.
Owner:CHONGQING JIAOTONG UNIV

High-purity plasma-corrosion-resistant perfluoroether rubber material and preparation method thereof

The invention discloses a high-purity plasma-corrosion-resistant perfluoroether rubber material which comprises the following components in parts by mass: 100 parts of perfluoroether rubber; 10-20 parts of an organic polymer filler; 0.5-3 parts of a vulcanizing agent; and 1-4 parts of an assistant vulcanizing agent. The invention also provides a preparation method of the rubber material. The preparation method comprises the following steps: preparing a perfluoroether rubber compound and thermally vulcanizing the perfluoroether rubber. The prepared high-purity perfluoroether rubber material is excellent in high-temperature resistance, good in plasma etching resistance and extremely low in metal ion precipitation amount, and has important guiding significance on development of sealing materials.
Owner:AEROSPACE RES INST OF MATERIAL & PROCESSING TECH

Organic coating slurry for ceramic affinity type lithium battery diaphragm as well as preparation method and application of organic coating slurry

The invention relates to the technical field of lithium battery diaphragms, and provides ceramic affinity type lithium battery diaphragm organic coating slurry and a preparation method and application thereof.The ceramic affinity type lithium battery diaphragm organic coating slurry is prepared from, by weight, 10-12 parts of deionized water, 1-3 parts of ceramic microcapsule particles, 0.1-0.3 part of hydroxymethyl cellulose lithium and 0.5-1 part of solid electrolyte; core materials of the ceramic microcapsule particles are ceramic particles, and wall materials of the ceramic microcapsule particles are organic polymers; the preparation method of the ceramic microcapsule particles comprises the following steps: S1, dispersing deionized water, ceramic particles and a dispersing agent, uniformly stirring, introducing nitrogen, sequentially adding a lithium salt, a coating agent and a pore forming agent, then adding PVDF powder and PMMA powder, and mixing to obtain a pre-agglomerated solution; and S2, carrying out spray drying granulation on the pre-agglomerated liquid to obtain the ceramic microcapsule particles. According to the technical scheme, the problems of insufficient heat resistance and safety of the lithium battery diaphragm in related technologies are solved.
Owner:HEBEI GELLEC NEW ENERGY MATERIAL SCI&TECHNOLOY CO LTD

Solid polymer electrolyte composite membrane, preparation method thereof and solid-state battery

The invention belongs to the field of batteries, and particularly relates to a solid-state polymer electrolyte composite membrane, a preparation method thereof and a solid-state battery. The solid polymer electrolyte composite membrane comprises an MOF functional layer, an anti-reduction coating and an anti-oxidation coating, wherein the anti-reduction coating and the anti-oxidation coating are arranged on the two sides of the MOF functional layer respectively; the MOF functional layer comprises an intermediate layer base material formed by an organic polymer, and an inorganic solid electrolyte and an MOF-based ionic conductor MOF-ILE which are dispersed in the intermediate layer base material; the MOF-based ionic conductor MOF-ILE comprises an MOF material, an ionic liquid and a lithium salt. The electrolyte membrane can meet the multifunctional requirements of all-solid-state batteries, including high ionic conductivity of the electrolyte membrane, good electrode-solid electrolyte membrane interface compatibility, high electrochemical window, excellent mechanical strength and electrochemical stability, so that the electrical performance of the all-solid-state batteries is remarkably improved.
Owner:CHINA AUTOMOTIVE XINNENG (WUXI) TECHNOLOGY CENTER CO LTD +1

Carboxyl functionalized porous organic polymer and application thereof in ammonia gas adsorption separation and sensing

The invention discloses a carboxyl-functionalized porous organic polymer, a preparation method thereof and application of the carboxyl-functionalized porous organic polymer in ammonia gas adsorption separation and sensing. The polymer is obtained by free radical polymerization, hydrolysis and acidification of monomers containing vinyl and ester groups, and has a mesoporous structure and a skeleton carboxyl functional group. The preparation method is simple and mild in condition. The polymer has excellent adsorption selectivity and high adsorption capacity on ammonia gas, the static adsorption capacity on the ammonia gas under the conditions of 298 K and 1 bar is not lower than 6.5 mmol / g, the ammonia gas can be efficiently separated from NH / N / H and NH / COs mixed gas, and the cycling stability is good. An ammonia gas sensor prepared by taking the graphene oxide as a sensitive material has linear or piecewise linear response to ammonia gas with the concentration of 1-100 ppm at room temperature, the detection limit is lower than 30 ppb, and the selectivity is excellent. The invention overcomes the defects of the existing ammonia gas adsorption separation material and sensor, has important significance for optimizing the ammonia production process and reducing pollution, and has wide application prospects.
Owner:ZHEJIANG SCI-TECH UNIV +1

Photocuring dental resin adhesive containing silane coupling agent modified monomer as well as preparation and application of photocuring dental resin adhesive

The invention relates to a light-cured dental resin adhesive containing a silane coupling agent modified monomer as well as preparation and application of the light-cured dental resin adhesive. The dental resin adhesive comprises a resin matrix, an organic polymer and a photoinitiator, wherein the resin matrix consists of methacrylate resin grafted and modified by a silane coupling agent and unmodified methacrylate resin. According to the method, the isocyano group of the silane coupling agent is selected to react with the hydroxyl group on the resin monomer to generate the silane modified grafted resin monomer, and the method is simple, low in equipment requirement and suitable for large-scale production; the obtained dental resin adhesive can be internally covalently cross-linked to enhance the self mechanical property, can also be chemically bonded with a bonding substrate by utilizing a grafted silane coupling agent to improve the interface bonding strength, is especially suitable for being used as an enamel bonding material, and can remarkably improve the service life and the curative effect of a bonded restoration.
Owner:BEIJING UNIV OF CHEM TECH +1

Waste sulfuric acid treatment method and device

PendingCN121800350AAluminium silicatesSulfur compoundsAlkylation unitReverse osmosis
The invention discloses a waste sulfuric acid treatment method and device, the device comprises a sintered filter element filter, a fine filtration coalescer, an adsorption tank and a membrane separator which are connected in sequence, and the fine filtration coalescer adopts a ceramic membrane tube or a polytetrafluoroethylene membrane tube or a silicon carbide lining membrane tube as a filter material; an adsorption material in the adsorption tank is one or a combined adsorption material of more than two of activated carbon, a modified molecular sieve, a metal organic framework material and a nano adsorption material; and the membrane separation system adopts one or a combined membrane of more than two of an ultrafiltration membrane, a reverse osmosis membrane and an electrodialysis membrane. The alkylation waste acid regeneration process can be simplified, the occupied area of the device is saved, the engineering investment is reduced, and the operation cost is greatly reduced compared with that of an existing process technology; according to the method, a physical separation means is adopted, organic polymeric oil, dissolved organic matters, dissolved salts and other impurities in the alkylated waste sulfuric acid can be effectively removed without decomposing and reconstructing the waste sulfuric acid, and the concentrated sulfuric acid after concentration completely meets the production requirements of an alkylation device.
Owner:SINOPEC GUANGZHOU ENG CO LTD

Aqueous triggered controlled-release saline-alkali soil conditioner and preparation method therefor

Disclosed in the present invention are an aqueous triggered controlled-release saline-alkali soil conditioner and a preparation method therefor. The aqueous triggered controlled-release saline-alkali soil conditioner comprises agent A. The agent A comprises a water-soluble polymer and controlled-release suspended particles. The controlled-release suspended particles comprise alginate / anti-reverse regulator composite particulates. The alginate / anti-reverse regulator composite particulates are obtained by sequentially subjecting an alginate to two-step gel cross-linking by means of a cationic anti-reverse regulator and a high-valent metal ion-containing cross-linking agent. In the present invention, the alginate used as a main material is subjected to charged regulator-based high-speed dispersion for primary gelation and high-valent metal-based secondary gelation, thereby preparing a micron-nano powder and suspension, and incorporating a solvable organic polymer material, the functions of graded release and intelligent regulation of a product are achieved. The incorporation of an organic acid and a phosphoric acid material can not only prevent a micro-irrigation device from scaling but can also achieve triggered controlled-release of the material on demand and in a timely manner, thereby achieving the effects of multi-particle-size dispersion and precise release of the product in soil.
Owner:CHINA AGRI UNIV

Deodorization system based on multistage self-adaptive plasma excitation and closed-loop feedback

The invention relates to a multistage self-adaptive plasma excitation and closed-loop feedback processing system, and relates to the field of environmental engineering. After waste gas enters the system, parameters such as odor concentration, temperature and humidity, ozone and the like are detected in real time by a sensor array, and data are fed back to a control center. The method comprises the following steps: decomposing organic high-molecular compounds by pre-ionization, exciting high-density active particles by a main reaction to thoroughly degrade peculiar smell, and decomposing ozone and small-molecular byproducts by using a nano-catalyst in a deep purification stage. The system adopts PID self-adaptive control, parameters can be automatically optimized according to real-time monitoring data, the removal rate is effectively improved, and the energy consumption is reduced. The processed gas is analyzed again through the secondary detection unit, data are uploaded to the cloud model, energy efficiency and processing strategies are continuously optimized through reinforcement learning, and intelligent and closed-loop management is achieved. The device can be widely applied to the field of industrial waste gas treatment, and has the outstanding advantages of efficient removal, low energy consumption, intelligent self-adaption and the like.
Owner:HEFEI MARRIOTT ENERGY EQUIP CO LTD

Preparation method and application of modified PVC adsorbent for gold extraction of carbonaceous gold ore

The invention provides a preparation method and application of a modified PVC adsorbent for gold extraction of carbonaceous gold ore, and belongs to the technical field of organic polymer materials and resource utilization. Based on construction of a hydroxylation-xanthate esterification reaction and bifunctional adsorption sites, a series of chemical modification paths of acetate nucleophilic substitution-hydrolysis-carbon disulfide alkali treatment are established, and xanthate functional groups with high reaction activity are accurately constructed on an inert PVC framework. Sulfur atoms in xanthate groups of the modified PVC are excellent electron donors and can generate strong chemical adsorption with metal impurities or polar sites on the surface of carbon, meanwhile, Van der Waals interaction between a main chain of the modified PVC and the carbon is reserved, and unmodified PVC or single hydroxylated PVC does not have the synergism of chemical adsorption and physical adsorption, so that the modified PVC can be used for preparing the carbon-modified PVC composite material, and the carbon-modified PVC composite material can be used for preparing the carbon-modified PVC composite material. And leap-type improvement of the adsorption capacity and selectivity of organic carbonaceous in minerals is realized.
Owner:CHANGCHUN GOLD RES INST

Production system and method for preparing high-carbon aldehyde through high-carbon olefin carbonyl synthesis

The invention discloses a production system and method for preparing high-carbon aldehyde through carbonyl synthesis of high-carbon olefin. The system comprises a reaction device, a separation device, an aldehyde condensing device, a product tank, a polymer supplementing unit and a recycling unit, the polymer supplementing unit is connected with the separating device; the cyclic utilization unit comprises an extraction separation device connected with a liquid phase outlet of the separation device, a polymer recovery device connected with a water phase outlet of the extraction separation device, and a catalyst regeneration device connected with an organic phase outlet of the extraction separation device. According to the method, a carbonyl metal catalytic system is adopted to catalyze reaction of high-carbon olefin and synthesis gas, and heating separation of reaction liquid is performed by introducing an organic polymer protection catalyst; the separated catalyst liquid phase is subjected to water extraction separation and post-treatment, and the organic polymer and the catalyst are recycled. Recycling of the catalyst and efficient separation of the product are realized, and the stability of the catalyst separation section is enhanced.
Owner:CNOOC TIANJIN CHEM RES & DESIGN INST

Waste sulfuric acid treatment method and system

The invention discloses a waste sulfuric acid treatment method and system. The system comprises a sintered filter element filter, a fine filtration coalescer, an adsorption tank, a gas stripping tower, an alkaline washing tower, a molecular sieve dehydration device and a gas medium heating facility, a ceramic membrane tube or a polytetrafluoroethylene membrane tube or a silicon carbide lining membrane tube is adopted as a filter material of the fine filtering coalescer; an adsorption material in the adsorption tank is one or a combined adsorption material of more than two of activated carbon, a modified molecular sieve, a metal organic framework material and a nano adsorption material. The alkylation waste acid regeneration process can be simplified, the occupied area of the device is saved, the engineering investment is reduced, and the operation cost is greatly reduced compared with that of an existing process technology; a physical separation means is adopted, organic polymeric oil, dissolved organic matter, dissolved salt and other impurities in the alkylation waste sulfuric acid can be effectively removed without decomposing and reconstructing the waste sulfuric acid, and the concentrated sulfuric acid after concentration completely meets the production requirements of an alkylation device.
Owner:SINOPEC GUANGZHOU ENG CO LTD

Perfluoropolyether-based polymer solid electrolyte film regulated and controlled by mixed solvent as well as preparation method and application of perfluoropolyether-based polymer solid electrolyte film

The invention discloses a perfluoropolyether-based polymer solid electrolyte film regulated and controlled by a mixed solvent as well as a preparation method and application of the perfluoropolyether-based polymer solid electrolyte film, and belongs to the field of organic polymer solid electrolyte preparation. Reacting under the action of an initiator and an RAFT (reversible addition-fragmentation chain transfer) reagent to obtain a perfluoropolyether-based copolymer; the method comprises the following steps: adding a perfluoropolyether-based copolymer into a polyvinylidene fluoride-hexafluoropropylene copolymer solution in which lithium salt is dissolved, the mass of the polyvinylidene fluoride-hexafluoropropylene copolymer accounts for 10%-30% of the mass of the polyvinylidene fluoride-hexafluoropropylene copolymer, the mass of the N, N '-dimethylformamide, the mass of the trifluorotoluene and the mass of the perfluoropolyether-based copolymer account for 10%-30% of the mass of the polyvinylidene fluoride-hexafluoropropylene copolymer, and the perfluoropolyether-based polymer solid-state electrolyte film is obtained by uniformly mixing and then preparing a film. And the comprehensive performance of the composite solid electrolyte serving as the film is improved.
Owner:SHAANXI UNIV OF SCI & TECH

Polyurethane-based composite solid polymer electrolyte film, and preparation method and application thereof

The invention relates to a polyurethane-based composite solid polymer electrolyte film and a preparation method and application thereof, and belongs to the field of organic polymer solid electrolyte preparation. Polyethylene glycol-polypropylene glycol triblock copolymer and hydroxyl-terminated polybutadiene are used as soft segments, isophorone diisocyanate is used as a hard segment, and under the action of a catalyst, the polyurethane-based composite solid polymer electrolyte film is prepared. A chain extender containing disulfide bonds is utilized, and a polyurethane elastomer is prepared through gradual addition polymerization reaction; a polyurethane elastomer and a mixed solution of a lithium salt and a polyvinylidene fluoride-hexafluoropropylene copolymer are uniformly mixed, the polyurethane elastomer accounts for 10%-30% of the mass of the polyvinylidene fluoride-hexafluoropropylene copolymer, a precursor solution is obtained, the precursor solution is prepared into a film, and the polyurethane-based composite solid polymer electrolyte film is obtained. The polymer solid electrolyte membrane with excellent mechanical property and excellent lithium ion conductivity is constructed, and the development requirement of a high-performance lithium metal battery is met.
Owner:SHAANXI UNIV OF SCI & TECH

Multi-stage leaching purification method of targeted therapeutic drug

The invention discloses a multi-stage leaching purification method of a targeted therapeutic drug. The multi-stage leaching purification method comprises the following steps: sequentially filling an adsorption column with a porous organic polymer layer and an adsorption ball layer; controlling the flow rate of the leacheate and the column temperature for leaching, and setting an adsorption saturation threshold value; carrier gas is adopted to heat and desorb the porous polymer layer, and carrier gas components are switched to heat and desorb the adsorption ball layer; the method comprises the following steps: introducing carrier gas carrying iodine vapor into an alkaline absorption tower to treat waste gas, eluting impurities of adsorption balls by adopting an acidic mixed solution, and performing catalytic degradation by combining ultraviolet light; a chelating agent solution is used for regenerating adsorption balls, a silver salt solution is used for heavily loading silver ions, an organic solvent is used for eluting and regenerating a porous polymer, regular calibration and part replacement are conducted on a system, and organic pollutants and radionuclides in a matrix are difficult to treat synchronously through a traditional single-layer adsorption material; according to the leaching purification method, the generation amount of radioactive waste liquid is remarkably reduced, and meanwhile the shielding protection requirement of the follow-up purification step is reduced.
Owner:SICHUAN HUAYI PHARM CO LTD

Oil-water separation membrane as well as preparation method and application thereof

The invention relates to an oil-water separation membrane as well as a preparation method and application thereof, and belongs to the field of gas field brine pretreatment. The oil-water separation membrane comprises a nanofiber membrane substrate and an MOFs layer loaded on at least part of the surface of the nanofiber membrane substrate, and the MOFs layer comprises two-dimensional MOFs nanosheets; the nanofiber membrane substrate is prepared by performing electrospinning on three-dimensional MOFs and an organic polymer; the two-dimensional MOFs nanosheet is obtained by secondary growth on the surface of the nanofiber membrane substrate through hydrothermal recrystallization. The oil-water separation membrane can be used for efficiently separating petroleum pollutants and solid suspended matters in the oil and gas field produced wastewater, and can be coupled with an advanced oxidation process based on sulfate free radicals to realize synchronous and efficient removal of oil, suspended particles and organic matters in the oil and gas field produced wastewater.
Owner:PETROCHINA CO LTD

A diaphragmless lithium ion battery

The present application provides a diaphragm-free lithium ion battery. The battery comprises a positive electrode current collector, a positive electrode active material, a solid electrolyte, a solvent, a negative electrode active material, and a negative electrode current collector. The solid electrolyte is a solid porous organic polymer, which contains specific functional groups, including weakly coordinated anion groups, and the corresponding cation of the anion group is lithium ion. The porous polymer is a solid powder, which can act as a barrier between the positive electrode active material and the negative electrode active material, eliminating the need for a diaphragm and greatly improving the safety performance of the battery.
Owner:WANHUA CHEM GRP CO LTD

Preparation process of high-temperature-resistant metal protective coating

The invention discloses a preparation process of a high-temperature-resistant metal protective coating, and relates to the technical field of protective coatings. According to the coating, an inorganic material which is stable at high temperature is compounded with an organic polymer to form a matrix with excellent high-temperature resistance, and an anti-corrosion filler is added to improve the corrosion resistance and the wear resistance. Through a specific preparation process, the coating and the metal substrate are tightly combined to form a compact protective barrier. The coating provided by the invention has excellent high-temperature resistance, corrosion resistance and adhesive force, and is suitable for metal structure protection in a high-temperature environment.
Owner:LIAONING ZHONGZHOUDESHUI ENVIRONMENTAL PROTECTION TECH CO LTD

Magnetic vane for magnetomotive generator set and preparation method of magnetic vane

The invention discloses a magnet vane for a magnetomotive generator set and a preparation method of the magnet vane, belongs to the technical field of magnet vanes, and aims to solve the problems that an existing magnet vane is prone to generating large eddy-current loss, and stress on the inner side and the outer side is unbalanced due to the fact that the layers of the novel magnet vane are arranged to be horizontal planes. Through the multi-layer composite structure of the supporting layer, the magnetic conductive layer and the diamagnetic layer, the total magnetic conductivity can be increased, an effective impedance matching interface can be formed, and through the arrangement of the inclined plane, the cooperation with the nanometer glue for bonding, the stress distribution and the laminating effect of the lamination are optimized, so that the lamination quality is improved. The wave-absorbing film is formed by compounding nanoscale magnetic particles and light organic polymers, the wave-absorbing performance is guaranteed, the weight of the magnetism isolating plate is greatly reduced, the requirement for light weight of electronic equipment is met, magnetic through holes are formed in the periphery of the magnetism isolating plate in a circular array mode, the forming area of the magnetic through holes is in a kidney shape and is increased from inside to outside, and the magnetic through holes are formed in the periphery of the magnetism isolating plate in a circular array mode. The magnetic through holes have ventilation and heat dissipation functions and directionally guide a magnetic field at the same time, and energy waste is reduced.
Owner:YANDONG INTELLIGENT EQUIP (ZHEJIANG) CO LTD

A spirooxazine-based photochromic porous organic polymer and a preparation method and application thereof

The present application relates to the field of organic photo-functional materials, and particularly relates to a photochromic porous organic polymer based on spirooxazine and a preparation method and application thereof; compared with a spirooxazine molecular monomer, the photochromic porous organic polymer based on spirooxazine is formed by connecting two groups through an imine bond to form a covalent bond skeleton on the basis of not changing the structure of spirooxazine; compared with a conventional small-molecule spirooxazine compound, the porous organic polymer has solid-state photochromic ability, and has advantages of good fatigue resistance and excellent stability.
Owner:TIANJIN UVOS TECH CO LTD +1

Submicron ultrathin self-supporting ion conduction membrane as well as preparation method and application thereof

The invention discloses a submicron ultrathin self-supporting ion conduction membrane as well as a preparation method and application thereof. The polymer is obtained through reaction of organic polymer resin and a cross-linking agent, has a full-cross-linked structure, and does not have interface impedance between a separation layer and a supporting layer; the organic polymer resin is selected from a polybenzimidazole polymer; the cross-linking agent is selected from 4, 4 '-bis (chloromethyl) biphenyl and / or p-chloromethyl benzene. And a reaction-non-diffusion phase conversion method is adopted, and the part which is not crosslinked or has a relatively low crosslinking degree is dissolved after the reaction, so that the sub-micron ionic conduction membrane for the flow battery is prepared. The cross-linking reaction enables the accumulation of polymers to be tighter, the pore size of the membrane is reduced, the mutual mixing of active substances in the flow battery is slowed down, and the coulombic efficiency of the battery is improved; and meanwhile, the transmission path of ions in the membrane can be effectively shortened by reducing the membrane thickness, so that the voltage efficiency of the battery is improved.
Owner:DALIAN INSTITUTE OF CHEMICAL PHYSICS CHINESE ACADEMY OF SCIENCES

Composite separators for lithium secondary batteries containing organic polymer binder layers and lithium secondary batteries having the same.

A composite separator for a lithium secondary battery according to aspects of this disclosure comprises: a porous organic polymer substrate; a porous inorganic heat-resistant layer coated on at least one surface of the organic polymer substrate, the porous inorganic heat-resistant layer comprising inorganic particles and an organic binder polymer holding the inorganic particles together; and an organic polymer adhesive layer coated on the outer surface of the porous inorganic heat-resistant layer, the organic polymer adhesive layer comprising a vinylidene fluoride-based polymer, wherein the organic polymer adhesive layer further comprises a compound having ethylene oxide repeating units and double bonds at the ends.
Owner:LG ENERGY SOLUTION LTD

A near-infrared stress luminescence elastic support and a preparation method and application thereof

The present application belongs to the technical field of inorganic fixed luminescent materials and medical polymer elastic stents, and relates to an elastic stent composed of near-infrared inorganic stress luminescent material and organic polymer and a preparation method. The composite elastic stent provided by the present application is manufactured by using 3D printing technology, adopts biodegradable polymer material as a printing base material, and adopts inorganic near-infrared stress luminescent material as a reinforcing phase material and a luminescent base, so that the hollow, cylindrical and net-shaped polymer composite elastic stent required is printed on a cylindrical surface base, and the composite elastic stent can be applied to real-time monitoring of the internal microenvironment of a blood vessel after an operation.
Owner:JIANGXI UNIV OF SCI & TECH

Enhanced non-stick coating system

The present invention relates to coating compositions that can be applied to the surface of a substrate to form a durable, non-stick coating. The coating compositions can include a basecoat composition and a topcoat composition for forming a basecoat and a topcoat applied over the basecoat. The basecoat can include one of an organic polymer, a sol-gel composition, and a silicone resin. The basecoat composition and the resulting basecoat can further include reinforcing particles. The topcoat can include a siloxane matrix formed from one of a hydrosilylation reaction, a dehydrocoupling reaction, and a polycondensation reaction. The basecoat and the topcoat can each be substantially free of a fluoropolymer component.
Owner:PPG INDUSTRIES OHIO INC

Application of ferrocenyl conjugated microporous polymer Fc-CMPs in composite solid propellant and composite solid propellant

The invention discloses application of ferrocenyl conjugated microporous polymers Fc-CMPs in a composite solid propellant and the composite solid propellant, the ferrocenyl conjugated microporous polymers Fc-CMPs are porous organic polymers which take ferrocenyl groups as conjugated functional units and are connected through covalent acetylenic bonds, and the ferrocenyl conjugated microporous polymers Fc-CMPs have excellent thermal stability and permanent porosity, and can be used for preparing the composite solid propellant. The material is solid powder, is insoluble in a traditional organic solvent and does not migrate, and a ferrocene unit serves as a constituent part of a polymer framework and an oxidation-reduction active site and is dispersed in a two-dimensional conjugated network structure of a composite solid propellant. When being used as a burning rate catalyst to be applied to AP decomposition, the ferrocene burning rate catalyst can obviously reduce the high-temperature decomposition peak temperature of AP, and solves the migration problem of a traditional ferrocene burning rate catalyst in a composite solid propellant system. The Fc-CMPs are applied to an AP decomposition catalysis scene for the first time, and a new direction is provided for development of a composite solid propellant burning rate catalyst.
Owner:HUBEI INST OF AEROSPACE CHEMOTECHNOLOGY

Polyfurandicarboxylic acid glycol ester resin and preparation method and application thereof

PendingCN121736243AFuranPolymer science
The invention relates to polyfurandicarboxylic acid glycol ester resin as well as a preparation method and application thereof, and belongs to the technical field of organic high-molecular compounds. The preparation method of the polyethylene furandicarboxylate resin provided by the invention comprises the following steps: S1, mixing 2, 5-furandicarboxylic acid, ethylene glycol, a catalyst and an inhibitor, and carrying out esterification reaction to obtain an ester; and S2, carrying out low-pressure condensation polymerization on the ester obtained in the step S1 to obtain the polyethylene furandicarboxylate resin, the inhibitor is ethylene carbonate; according to the GB / T14571.2-2018 standard, based on the chromatographic purity of the ethylene glycol, the chromatographic peak area of the inhibitor in the mixture of the ethylene glycol and the inhibitor is 0.05%-0.6% of the sum of the chromatographic peak area of the inhibitor and the chromatographic peak area of the ethylene glycol. The preparation method can effectively reduce the content of acetaldehyde in the polyethylene furandicarboxylate resin.
Owner:ZHUHAI KINGFA BIOMATERIAL CO LTD +1

A phosphine-containing porous organic polymer supported ruthenium catalyst and a method for preparing the same

This invention discloses a ruthenium catalyst supported on a phosphine-containing porous organic polymer and its preparation method. The phosphine-containing porous organic polymer serves as both a support and a solid ligand. The phosphine-containing porous organic polymer ligand is a random copolymer, and its structure can be represented by general formula I. The ruthenium catalyst supported on the phosphine-containing porous organic polymer according to this invention has a large specific surface area and contains a hierarchical porous structure, enabling efficient direct preparation of alcohols from olefins via reductive hydroformylation, and is easily recyclable. It exhibits excellent activity and regioselectivity in the direct preparation of alcohols from olefins via reductive hydroformylation, with an alcohol selectivity of nearly 90% and a high ratio of straight-chain alcohols to branched-chain alcohols.
Owner:QINGDAO INST OF BIOENERGY & BIOPROCESS TECH CHINESE ACADEMY OF SCI