152 results about "Atom-transfer radical-polymerization" patented technology

The invention discloses deep eutectic gel polymer electrolyte as well as preparation and application thereof, belongs to the technical field of battery electrolyte, solves the problems of low thermal stability, low ionic conductivity and poor mechanical property in the prior art, and comprises a bimetallic salt-eutectic solvent and a polymer chain which are dynamically crosslinked and constructed, the bimetallic salt-eutectic solvent comprises lithium ions, heterogeneous metal salt and Lewis base, and the polymer chain is formed by free radical polymerization, atom transfer radical polymerization (ATRP) or reversible addition-fragmentation chain transfer radical polymerization (RAFT). According to the invention, the deep eutectic solvent is introduced as a reaction solution, so that the organic gel monomer is subjected to photopolymerization or thermal polymerization in the solution, the elongation at break can reach more than 500%, the organic gel has excellent mechanical stretchability, a polymer network is formed by utilizing a long-chain molecular formula of a polymer chain, the deep eutectic solution is wrapped in the polymer network, and the organic gel has excellent thermal stability; and the good ionic conductivity of the electrolyte is ensured.

The invention discloses a cellulose coated diaphragm and a preparation method thereof in the field of lithium ion batteries, the diaphragm comprises alpha-cellulose pulp, a cellulose grafted phenylboronic acid-co-oligomeric ethylene oxide copolymer, a thermal response star zwitterionic polymer and nano aluminum oxide, and an N-methylmorpholine-N-oxide aqueous solution is adopted as a solvent system. The preparation method comprises the following steps: firstly synthesizing a cellulose grafted copolymer with dynamic borate bonds through atom transfer radical polymerization, then preparing a star polymer with thermal response arms and zwitter-ion terminals by taking cyclodextrin as a core, and finally mixing all the components to prepare coating slurry. And the composite diaphragm is prepared through the processes of coating, phase conversion, ultraviolet curing and drying. The diaphragm combines the thermal stability and lyophilic property of cellulose, forms a dynamic self-adaptive interface layer through the synergistic effect of two functional compounds, has the advantages of active safety protection, dendritic crystal inhibition, long cycle life and the like, and remarkably improves the comprehensive performance of the lithium ion battery.

The invention discloses a method and equipment for detecting oxidized low-density lipoprotein based on immunoturbidimetry, and the method comprises the following steps: preparing a macroinitiator by active esterification reaction, and preparing a block graft copolymer by atom transfer radical polymerization and radical grafting reaction; the preparation method comprises the following steps: carrying out surface modification on latex microspheres with different particle sizes by using a grafted copolymer, and then respectively coupling the microspheres with different particle sizes with different OxLDL monoclonal antibodies so as to prepare a double-particle-size latex microsphere marker; and mixing the serum sample with the double-particle-size latex microsphere marker, measuring an absorbance value, and calculating the concentration of the oxidized low-density lipoprotein in the serum sample according to a standard curve established on the basis of the standard substance solution. According to the scheme, the stability of the latex microsphere marker can be enhanced, and the binding efficiency of the latex microsphere marker and ox-LDL can be improved.

The application belongs to the technical field of membrane separation materials, and discloses an ultrahydrophilic oil-water separation membrane, a preparation method and application thereof, and comprises the following steps: 2-(2-bromoisobutyryloxy)ethyl methacrylate monomers are prepared from 2-hydroxyethyl methacrylate and 2-bromoisobutyryl bromide, and a polymer with an atom transfer radical polymerization initiator is prepared through a free radical polymerization reaction; the polymer with the atom transfer radical polymerization initiator and polyacrylonitrile are dissolved into a solvent, and a PAN / P(AN-g-BIEM) blended membrane is prepared through a non-solvent induced phase separation method; and a hydrophilic polymer brush is grafted to the surface of the PAN / P(AN-g-BIEM) blended membrane to obtain the ultrahydrophilic oil-water separation membrane; the ultrahydrophilic oil-water separation membrane prepared by the application has a high separation flux, excellent oil-water separation efficiency and separation performance for different oil-in-water emulsions.

The invention discloses an intaglio printing ink composition and an intaglio printing method, and belongs to the technical field of ink preparation, the intaglio printing ink composition comprises the following components by weight: 40-80 parts of a polyacrylic acid emulsion and / or a polyacrylate emulsion, 5-15 parts of a hydroxyl acrylate monomer, 4-12 parts of a cross-linking agent, and 5-15 parts of a low alcohol solvent, 8-26 parts of pigment filler, 1-8 parts of an initiator and 3-10 parts of an auxiliary agent; the cross-linking agent is formed by taking pentaerythritol as a matrix, preparing pentaerythritol ester containing bromo-isobutyl through acylation reaction ester formation, and then polymerizing with tert-butyl acrylate through atom transfer radical polymerization reaction. By introducing the cross-linking agent, the curing speed of the resin binder is increased, and meanwhile, the adhesive force and the stability of the ink are improved.

The invention discloses an EGCG preparation with ultrahigh stability and an efficient anti-aging effect and a preparation method and application thereof. EGCG is firstly entrapped by a polymer wall material, and then the polymer wall material and a cross-linking agent containing two boric acid groups are subjected to an esterification reaction to obtain the EGCG preparation; the mass ratio of the polymer wall material to the cross-linking agent is 1: (0.5-2.0); the polymer wall material has amphipathy, and is obtained by performing ring-opening polymerization reaction on a polymeric monomer epsilon-caprolactone to obtain polycaprolactone, performing bromination reaction to obtain brominated polycaprolactone, and performing atom transfer radical polymerization reaction on a polymeric monomer poly (ethylene glycol) methacrylate. According to the invention, boric acid ester bonds are generated through a cross-linking reaction, and EGCG is firmly wrapped by a unique net structure of the boric acid ester bonds, so that the EGCG has better stability; in addition, in a high reactive oxygen species (ROS) environment, EGCG can be efficiently released, and then the efficient antioxidant effect is achieved.

The invention relates to the technical field of coatings, and discloses a weather-resistant high-strength anti-corrosion rust remover based on an inorganic composite material, a preparation method of the weather-resistant high-strength anti-corrosion rust remover and application of the weather-resistant high-strength anti-corrosion rust remover to bolts. The preparation method comprises the following steps: carrying out atom transfer radical polymerization reaction on a thiophene-containing initiator, styrene and hydrotalcite dispersion liquid to obtain a hydrotalcite / block copolymer composite material, and uniformly mixing the hydrotalcite / block copolymer composite material with phosphorus-containing epoxy acrylate, acrylic acid methyl gallate, an active diluent and a photoinitiator; the weather-resistant high-strength anti-corrosion rust remover based on the inorganic composite material is prepared. The rust remover has excellent corrosion resistance and weather resistance, a passivation protection coating is formed after the rust remover serving as a rust coating is coated and cured on the surface of a base material subjected to incomplete rust removal, the coating is high in mechanical strength and has lasting weather resistance and corrosion resistance, and the rust remover can be applied to anti-corrosion protection of bolts.

The invention belongs to the technical field of separation resin, and relates to amphoteric ion exchange resin as well as a preparation method and application thereof. The amphoteric ion exchange resin is obtained by introducing a monomer 3-[N, N-dimethyl-[2-(2-methylpropane-2-enoyloxy) ethyl] ammonium] propane-1-sulfonic acid inner salt and a monomer methacryloyloxyethyl trimethyl ammonium chloride into chloromethylated polystyrene resin through an atom transfer radical polymerization reaction. Quaternary ammonium salt groups exposed on 3-[N, N-dimethyl-[2-(2-methylpropyl-2-enoyloxy) ethyl] ammonium] propane-1-sulfonic acid inner salt and methacryloyloxyethyl trimethyl ammonium chloride in the amphoteric ion exchange resin can improve the separation rate of acid and sugar; and meanwhile, during elution, sulfonate groups on 3-[N, N-dimethyl-[2-(2-methylpropane-2-enoyloxy) ethyl] ammonium] propane-1-sulfonic acid inner salt in the resin can effectively weaken the sulfuric acid tailing phenomenon by virtue of the sulfonate groups on the 3-[N, N-dimethyl-[2-(2-methylpropane-2-enoyloxy) ethyl] ammonium] propane-1-sulfonic acid inner salt.

The invention relates to an anticoagulant medical device and a preparation method thereof. The preparation method of the anticoagulant medical device comprises the following steps: covalently connecting the hydrophilic anticoagulant layer on the surface of the base material in an atom transfer radical polymerization manner; a heparin anticoagulation layer is covalently connected to the surface of a hydrophilic anticoagulation layer to prepare the anticoagulation medical device, and the heparin anticoagulation layer and the hydrophilic anticoagulation layer are connected through one or more covalent bonds of a triazole bond, an amido bond, a carbon-nitrogen single bond and a carbon-sulfur single bond. According to the preparation method of the anticoagulation medical device, the anti-protein adsorption effect of the hydrophilic anticoagulation layer and the anticoagulation effect of the heparin anticoagulation layer can be synergistically exerted, the anticoagulation effect is improved, and meanwhile, the anticoagulation stability is improved.

The invention relates to the technical field of catalysts, in particular to a graphene-based desulfurization catalyst and a preparation method thereof. Graphene oxide is used as a carrier, an initiating group is introduced firstly, a short-brush amphoteric polymer gradient modification layer and a long-brush amphoteric polymer gradient modification layer are sequentially constructed through atom transfer radical polymerization, ammonium molybdate-urea complex deposition is fused, and uniform nucleation of a metal precursor is achieved. Two-stage vulcanization is adopted in the preparation process, the crystallization process of a precursor is controlled step by step at different temperatures, and the size and dispersity of a molybdenum disulfide sheet layer are optimized. The catalyst is high in conversion rate under a hydrodesulfurization model system, low in total sulfur of discharged materials, and excellent in activity retention rate after multiple cycles. The method can be widely applied to the field of fuel oil deep desulfurization, and the efficient and environment-friendly industrial catalysis requirement is met.

The invention relates to the technical field of microsphere modification, in particular to a surface-functionalized microsphere and a modification method thereof.The modification method of the surface-functionalized microsphere comprises the steps that a microsphere solution obtained by mixing a microsphere with double-bond olefin on the surface and an organic solvent is mixed with molecules containing alkenyl functional groups and an azo initiator; and carrying out addition reaction to obtain the surface functionalized microspheres. Functional groups on the surfaces of the microspheres are modified by adopting an atom transfer radical polymerization method, double-bond olefin externally hung on the surfaces of the microspheres and molecules containing alkenyl functional groups are utilized, the molecules containing the alkenyl functional groups and the double-bond olefin on the surfaces of the microspheres can be subjected to an addition reaction under the action of an azo initiator, and the functional group molecules are grafted to the surfaces of the microspheres, so that the microspheres are prepared. The surfaces of the microspheres are modified into functional groups with different contents and different lengths. According to the method, the surface groups of the microspheres can be uniformly modified, and the surfaces of the microspheres can be modified into different numbers of functional groups and functional molecules with different chain lengths.

The invention relates to the technical field of papermaking and food packaging materials, in particular to a preparation method of full-degradable plastic-substituted high-strength food packaging paper. Preparing a fiber layer by taking plant fiber as a base material; the preparation method comprises the following steps: grafting a methyl methacrylate-butyl acrylate block copolymer on nano-cellulose through an atom transfer radical polymerization technology to prepare enhanced nano-cellulose; dialdehyde starch rich in aldehyde groups and chitosan are subjected to a Schiff base reaction to form a dynamic cross-linked network, polylactic acid microspheres modified by beta-cyclodextrin are introduced to serve as supramolecular enhancement units, and functional coating liquid is prepared; and finally, coating the functional coating liquid on the fiber layer, and drying, cross-linking and curing to obtain a finished product. Through cooperation of chemical grafting, dynamic covalent bonds and supramolecular action, the packaging paper is endowed with extremely high strength and toughness and excellent oil and moisture resistance and heat sealability, meanwhile, it is ensured that the packaging paper can be completely biodegraded in the natural environment, and functional replacement of traditional plastic packaging is successfully achieved.

The invention belongs to the technical field of lithium battery negative electrode interface modification, and discloses a multifunctional two-dimensional hybrid polymer artificial SEI membrane and a preparation method and application thereof. Comprising a compound as shown in a formula I, a polymer brush is grafted on the surface of brominated graphene oxide through atom transfer radical polymerization (ATRP), monomers of the polymer brush are carboxyl-containing monomers and fluorine-containing monomers, and the artificial SEI membrane is constructed through spin coating and membrane forming. The multifunctional artificial SEI film provided by the invention has the structural and functional characteristics of two-dimensional graphene oxide and in-situ reaction type macromolecules, the mechanical property of the film can be remarkably improved by an accumulated two-dimensional skeleton, the Young modulus can reach 3.7 GPa, the growth of lithium dendrites is inhibited, and the performance of the film is improved. Functional groups (carboxyl and fluoro) in the hybrid polymer brush and lithium metal are subjected to in-situ chemical reaction, so that the electrode interface stability and the lithium deposition uniformity are improved, and the hybrid polymer brush has wide application prospects in the field of lithium batteries.

The invention discloses a full-biodegradable bag and a preparation method thereof in the technical field of biodegradable materials.According to the full-biodegradable bag, polylactic acid and poly (butylene adipate-co-terephthalate) serve as matrixes, and performance optimization is achieved by adding a specially-made nanofiber interpenetrating network compatibilizer and a star-shaped structure bio-based plasticizer; wherein the nanofiber interpenetrating network compatibilizer is prepared by grafting polylactic acid and poly (butylene adipate-co-terephthalate) chain segments on cellulose nanofibers through an atom transfer radical polymerization technology, and the star-shaped structure bio-based plasticizer is prepared through ring opening polymerization and melt grafting technologies. In addition, the formula also comprises a maleimide modified lignin filler, an ethylene bis stearamide lubricant and an antioxidant. Through the synergistic effect of the two specially-made modified compounds, the compatibility of all the components is remarkably improved, the preparation process is simple and reliable and suitable for industrial production, and the problem of white pollution of traditional plastic products can be effectively solved.

The application discloses a crystalline hyperbranched multi-arm copolymer, a self-supporting graphene film and a preparation and application thereof. The crystalline hyperbranched multi-arm copolymer is prepared by the following method: a hyperbranched macromolecular initiator is obtained by using an alpha-diimine palladium catalyst to catalyze ethylene and a bromine-containing functional monomer in a one-step "chain removal" copolymerization in a water-free grade solvent; and then the hyperbranched macromolecular initiator is used to initiate atom transfer radical polymerization of an acrylate functional monomer to obtain the crystalline hyperbranched multi-arm copolymer. The crystalline hyperbranched multi-arm copolymer, graphite powder and a solvent are mixed in proportion, graphene initial dispersion liquid is obtained through ultrasonic and centrifugal separation, and then the self-supporting graphene film is obtained through filtration, elution and drying in sequence. The application provides an application of the self-supporting graphene film as an electrothermal film, and the self-supporting graphene film has excellent electrothermal performance and mechanical strength.

The invention relates to a PVP-b-PMMA (Polyvinyl Pyrrolidone-b-Polymethyl Methacrylate) block polymer, a preparation method thereof and an ultrafiltration membrane. The PVP-b-PMMA block polymer is prepared from the following raw materials: N-vinyl pyrrolidone and methyl methacrylate according to a mass ratio of 1 to (0.3 to 4); the preparation method of the PVP-b-PMMA block polymer comprises the following step: carrying out atom transfer radical polymerization on N-vinyl pyrrolidone and methyl methacrylate to obtain the PVP-b-PMMA block polymer. According to the preparation method disclosed by the invention, the PVP-b-PMMA block polymer with excellent performance is prepared by designing the mass ratio of the raw materials of N-vinyl pyrrolidone (NVP) and methyl methacrylate (MMA) for preparing the PVP-b-PMMA block polymer. The filtering membrane prepared from the PVP-b-PMMA block polymer can realize the synergistic improvement of high flux, retention rate, pollution resistance and stability.

The invention provides a temperature-sensitive microcapsule wall material and a preparation method thereof, a hydrophobic monomer with a polymerizable double bond at a terminal group is used as a monomer A, a temperature-sensitive monomer is used as a monomer B, the monomer A and the monomer B are subjected to atom transfer radical polymerization to prepare an A-b-B structure, and a block high-molecular copolymer A-b-B, namely the temperature-sensitive microcapsule wall material, is obtained; the invention also provides an application of the temperature-sensitive microcapsule wall material, the temperature-sensitive microcapsule wall material is used for preparing temperature-controlled slow-release microcapsules, the temperature response sensitivity of the block high-molecular copolymer A-b-B is good, and the block high-molecular copolymer A-b-B has a good temperature-controlled slow-release effect on functional core materials in the microcapsules as the wall material. The process is simple, the temperature response sensitivity of the block high-molecular copolymer A-b-B is good, the temperature control slow-release effect of the block high-molecular copolymer A-b-B serving as a wall material is good, the prepared microcapsule can be applied to functional clothes, functional beauty makeup products or other products for human body contact, the application range is wide, and the preparation method belongs to the technical field of temperature-sensitive materials.

The application discloses a preparation method and application method of a high-performance optical fiber coating modified by polymer grafted carbon nanotubes, and the preparation method comprises the following steps: pre-treating carbon nanotubes to obtain brominated carbon nanotubes; performing grafting treatment on the brominated carbon nanotubes through photocatalytic atom transfer radical polymerization to obtain polymer grafted functionalized carbon nanotubes; and mixing the polymer grafted functionalized carbon nanotubes with a prepolymer, an active diluent and a photoinitiator to obtain the required high-performance optical fiber coating. The carbon nanotubes are grafted with polyacrylate polymer chains on the surface, which can improve the dispersibility of the carbon nanotubes in the coating system, ensure the long-term stability and functional effectiveness of the carbon nanotubes in the coating, overcome the problems of poor compatibility and uneven dispersion of existing carbon-based composite coatings, improve the mechanical properties and thermal stability of the optical fiber coating, enhance the bonding strength between the coating and the optical fiber, and provide a new perspective for the preparation of high-performance optical fiber coatings.

The application discloses a preparation method of a yacht special high-adhesion anti-fouling paint, which comprises the following steps: preparing an anti-fouling paint resin by atom transfer radical polymerization of a catechol monomer containing an unsaturated double bond, an acrylic ester monomer containing an epoxy group, a silane acrylate monomer and an acrylic monomer, and mixing the resin with an amino-modified pigment, an anti-fouling agent and the like to obtain the anti-fouling paint. Compared with traditional anti-fouling paint, the catechol structure contained in the application can form a strong interaction with various substrates, greatly increasing the adhesion of the paint and avoiding the paint from falling off when the yacht is sailing at a high speed. The amino-modified pigment can be uniformly dispersed in the paint by reacting with the epoxy group of the resin matrix, avoiding the color deviation caused by pigment deposition or falling off, and enabling the yacht to keep a bright paint color for a long time. The amino group reacts with the epoxy group to form a cross-linking structure, increasing the hardness of the coating and resisting the impact of water flow and silt during the sailing of the yacht.

The invention discloses a construction method, a construction structure and an application of a digoxin antibody electrochemical sensor based on atom transfer radical polymerization reaction, including designing a cascaded strand displacement cyclic amplification strategy, regulating atom transfer radical polymerization reaction, constructing an electrochemical sensing interface for detecting digoxin antibody, and detecting the antibody in serum samples. In the electrochemical sensor for detecting antibody of the invention, a DNA probe modified with a small molecule antigen determinant is used for specific recognition, a cascaded strand displacement cyclic amplification reaction is designed, and the growth of electrochemical signal is regulated by means of atom transfer radical polymerization reaction, so as to realize the sensitive detection of digoxin antibody in serum samples, and the detection limit is as low as 1.5 pM. This research has important application value in the prevention, diagnosis and treatment of human immune diseases.

A graphite-phase carbon nitride composite material covalently modified with a polymethyl methacrylate polymer containing a porphyrin group at its end, and a preparation method thereof, belong to the technical field of nonlinear optical materials. The composite material is characterized by being formed by covalently modifying graphite-phase carbon nitride with polymethyl methacrylate containing a porphyrin group at its end. The preparation method comprises first preparing polymethyl methacrylate containing a porphyrin group at its end by atom transfer radical polymerization, and then covalently linking the polymethyl methacrylate with a graphite-phase carbon nitride covalently modified with benzyl alcohol to prepare a graphite-phase carbon nitride composite material covalently modified with polymethyl methacrylate containing a porphyrin group at its end. The composite material is a nonlinear optical material. This method can produce a composite material with excellent nonlinear optical properties, and the nonlinear optical properties of the composite material can be controlled by varying the polymer of the porphyrin polymer.

The present application relates to the preparation field of organic polymer monolithic column, in particular to a kind of double-continuous supermacroporous cellulose / polystyrene composite monolithic column and its preparation method and application.Firstly, O / W Pickering emulsion is prepared using modified cellulose nanocrystal (CNC), and Janus CNC-PS with single side grafted polystyrene (PS) polymer brush is prepared by electron activation regeneration-atom transfer radical polymerization (AGET-ATRP) reaction system, and double-continuous phase emulsion gel (Bijel) is prepared by one-step stirring method using Janus CNC-PS with different HLB values as stabilizer.Then, double-continuous supermacroporous cellulose / polystyrene composite monolithic column is obtained by in-situ active polymerization through AGET-ATRP reaction using Janus CNC-PS as macromolecular initiator and Bijel as emulsion template.The obtained monolithic column has uniform skeleton structure, double-continuous skeleton and pore, high mechanical strength, and the unmodified side of CNC covers the outer surface of skeleton, so that the pore surface has hydrophilicity and is easy to modify.The monolithic column effectively overcomes the defects of current polymer monolithic column, such as poor biocompatibility, low mechanical strength and low specific surface area, and has great application potential in the field of enzyme and cell immobilization and biomacromolecule separation and analysis.

The invention relates to the technical field of hydrocarbon resin, in particular to a self-toughening hydrocarbon copolymer for a high-frequency high-speed copper-clad plate and a preparation method of the self-toughening hydrocarbon copolymer. According to the invention, divinyl benzene, styrene and 4-tert-butyl styrene are used as main raw materials, and atom transfer radical polymerization is adopted to prepare the hydrocarbon copolymer containing vinyl. On the basis, a styrene-butadiene-styrene block copolymer (SBS) is directly added in a polymerization reaction to prepare the hydrocarbon copolymer with a self-toughening effect, and the hydrocarbon copolymer shows better formability. And finally, preparing a glue solution by using the prepared hydrocarbon copolymer, di-tert-butylperoxy isopropyl benzene, an antioxidant 1010 and xylene as raw materials, and heating, curing and molding to obtain a finished product. The prepared finished product has good heat resistance, water absorption, dielectric property and thermal expansion coefficient, and can be applied to the field of high-frequency and high-speed copper-clad plates.

The invention relates to a blood contact material and a preparation method thereof. The preparation method of the blood contact material comprises the following steps that the anticoagulant layer is covalently connected to the surface of the base material in an atom transfer radical polymerization mode, the tail end of a polymer in the anticoagulant layer is provided with an initiator group, and the anticoagulant layer comprises one or more of a hydrophilic anticoagulant layer and a heparin anticoagulant layer; and reacting the initiator group with the substance with the NO catalytic release function to prepare the blood contact material. According to the preparation method, the stability of the membrane layer can be improved while a relatively good antithrombotic effect is ensured.

The invention discloses a waterproof antibacterial moisture-conducting home textile fabric and a preparation method thereof, and belongs to the field of textile fabric processing, the waterproof antibacterial moisture-conducting home textile fabric sequentially comprises a waterproof antibacterial outer layer, a sweat-absorbing middle layer and an antibacterial inner layer from top to bottom, and the waterproof antibacterial outer layer, the sweat-absorbing middle layer and the antibacterial inner layer are connected together in a laminated mode; the waterproof and antibacterial outer layer is used for preparing waterproof and antibacterial silicon dioxide nano particles through a method of initiating atom transfer radical polymerization on the surface, then the waterproof and antibacterial silicon dioxide nano particles are polymerized on the surface of the cotton fabric, the sweat-absorbing middle layer is composed of regenerated cellulose fibers with sweat-absorbing columns, and the antibacterial inner layer is formed by weaving bamboo fibers and milk protein fibers. The home textile fabric has excellent waterproof, antibacterial and moisture-conducting properties, and the washing resistance and the strength of the home textile fabric are basically not affected.

The provided is a PMMA (polymethylmethacrylate) and borax doped copolymer synthesized by using atom transfer radical polymerization (ATRP) method, and uses of this copolymer. The steps of the method include: filling an Atmos-Bag with argon gas; and weighing of Tetra-n-butylammonium Bromide, Copper Bromide, Borax Decahydrate, Methyl Methacrylate, Pentamethyldiethylenetriamine, Ethyl 2-bromoisobutyrate chemicals with a precision scale in the Atmos-Bag.

The invention relates to the field of anti-icing coatings, in particular to a high-hydrophobicity composite anti-icing coating, which is prepared from the following raw materials in parts by weight: 65 to 75 parts of block polymer, 5 to 8 parts of photo-thermal filler, 4 to 6 parts of hydrophobic nano silicon dioxide, 8 to 10 parts of isocyanate curing agent, 0.5 to 1.2 parts of defoaming agent, 0.8 to 1.4 parts of flatting agent and 15 to 18 parts of ethyl acetate. A block polymer with a fluorosilicone chain segment is prepared through an atom transfer radical polymerization method, the block polymer serves as matrix resin, meanwhile, the photo-thermal filler wrapped by polydopamine is added, and therefore the problems that an anti-icing coating is poor in weather resistance, and the compatibility of the photo-thermal filler and the matrix resin is poor are solved, and the anti-icing coating has a good photo-thermal effect and is suitable for being used as an anti-icing coating. Therefore, a good anti-icing effect is achieved.

The present invention provides a thermoresponsive amphiphilic triblock polymer, a preparation method, an application thereof, and a drug-loaded micelle. A thermoresponsive amphiphilic triblock polymer P(PFPHM9-b-DMAA-b-PEGMA is prepared by using activators regenerated by electron transfer for atom transfer radical polymerization (ARGET ATRP). 360 ) The thermoresponsive amphiphilic triblock polymer P(PFPHM9-b-DMAA-b-PEGMA 360 ) has temperature sensitivity and a low critical micelle concentration, and has no biological toxicity, and can be used as a drug carrier for doxorubicin. The P(PFPHM9-b-DMAA-b-PEGMA 360 ) of the present invention can effectively encapsulate DOX, thereby obtaining a thermoresponsive amphiphilic triblock polymer drug-loaded micelle. The drug-loaded micelle has a slow drug release at 37°C, which is beneficial to the circulation of the drug in the body, reduces the dosage of the drug and the side effects of the drug on the human body, while the drug is rapidly released at 42°C, which is beneficial to acting on the patient position in a short time and reducing the treatment time.

The invention discloses a hyperbranched structure grafting-based shrinkage reducing agent for UHPC (Ultra High Performance Concrete), a preparation method of the shrinkage reducing agent and a preparation method of a polycarboxylate superplasticizer. Two types of shrinkage reducing monomers are compounded and then polymerized with modified cyclodextrin through an ATRP (Atom Transfer Radical Polymerization) method to generate the shrinkage reducing agent which is adaptive to UHPC (Ultra High Performance Polycarbonate) and has the functions of regulating and controlling surface tension and keeping internal humidity. The preparation process is simple, convenient and easy to control, the cost is low, the product property is stable, on the premise of ensuring the mechanical property of the concrete, the shrinkage rate of the concrete can be stably reduced for a long time, the cracking resistance of the concrete is improved, the durability of the concrete is improved, and the application requirements of UHPC under more complex working conditions are promoted.

The application belongs to the technical field of separation resin, and relates to a zwitterionic ion exchange resin and a preparation method and application thereof. The zwitterionic ion exchange resin is obtained by introducing chloromethylated polystyrene resin into monomer 3-[N,N-dimethyl-[2-(2-methylprop-2-enoyloxy)ethyl]ammonium]propane-1-sulfonate and monomer methacryloyloxyethyl trimethyl ammonium chloride through an atom transfer radical polymerization reaction. The exposed quaternary ammonium salt groups on the 3-[N,N-dimethyl-[2-(2-methylprop-2-enoyloxy)ethyl]ammonium]propane-1-sulfonate and the methacryloyloxyethyl trimethyl ammonium chloride in the zwitterionic ion exchange resin can improve the separation rate of acid and sugar; meanwhile, the sulfonate groups on the 3-[N,N-dimethyl-[2-(2-methylprop-2-enoyloxy)ethyl]ammonium]propane-1-sulfonate in the resin can effectively weaken the sulfuric acid tailing phenomenon.