26 results about "Functionalized polymer" patented technology

The application discloses a method for preparing photoelectric dual-response sensing polymer materials with self-repairing performance by using commercial olefin precursors and functionalized polymers based on the method; the method directly copolymerizes flexible comonomers and vinyl aromatic hydrocarbon monomers, and under suitable polymerization conditions, the two monomers are polymerized in a random copolymerization manner to generate functional polymers with micro-phase separation characteristics; the above method provided by the application can upgrade the commercial olefin monomers to obtain self-repairing performance, optical and electrical sensing performance, the conversion efficiency is high, the process is simple, the functionalization upgrading of the olefin polymers lacking of functions can be fully realized, the cost can be significantly reduced, the environmental pollution and resource waste can be reduced, and the application range of the olefin materials is widened.

This invention relates to an asphalt composition comprising modified asphalt and a hydroxyl-functionalized polymer configured to generate a thermally reversible crosslinked network in the composition, wherein the hydroxyl-functionalized polymer is selected from: hydroxyl-functionalized polyolefin thermoplastics, hydroxyl-functionalized polyolefin elastomers, and hydroxyl-functionalized polyolefin plastics.

This invention relates to the field of waterproof coatings, specifically to a waterproof coating and its preparation method; comprising: 40 to 70 parts of functionalized polymer emulsion, 10 to 30 parts of pigments and fillers, 1 to 3 parts of film-forming aid, 0.2 to 0.5 parts of defoamer, and 10 to 20 parts of water; as the core material, the above-mentioned functionalized polymer emulsion is prepared by in-situ soap-free emulsion copolymerization process using multiple polymer monomers, including a multifunctional fluorosilicone modified monomer; the multifunctional fluorosilicone modified monomer has a triazine ring structure framework, and 2-(perfluorohexyl)ethoxy, 2-(methacryloyloxy)ethoxy, and 3-(triethoxysilyl)propylamino are respectively attached to the three carbon atoms of this framework; this invention can significantly improve the adhesion of the coating to the substrate, while the triazine ring framework enhances the stability of the overall molecular structure, greatly improving the waterproof effect and weather resistance of the coating.

The application belongs to the technical field of battery pole piece, and specifically discloses an edge insulation protective light-curing jet printing ink, a preparation method and application thereof. The raw materials of the ink include 20-60 parts of light-curing prepolymer, 30-70 parts of active diluent, 1-8 parts of photoinitiator and 0.4-3 parts of additive. The light-curing prepolymer includes a functionalized polymer containing polyolefin oligomer and / or polyolefin acrylate, and at least one of polyurethane acrylate resin, pure acrylate resin, epoxy acrylate resin and polyester acrylate resin. The active diluent includes mono- / poly-functional acrylate. The additive is at least one of leveling agent and thiol compound. The ink has the advantages of fast curing speed, excellent flexibility, self-supporting, wear resistance and corrosion resistance, and can be suitable for inkjet printing coating process, and has the advantages of high efficiency, almost 100% utilization rate, precise coating of the edge of the pole piece, good mechanical properties of the film layer and the like.

A sensor for measuring acetone includes: an array of nanowires extending from a substrate, each of the nanowires having a corresponding surface substantially composed of a compound semiconductor and a diameter of less than 100 nm; an electrical contact material disposed on a first portion of the surface of each nanowire to form a Schottky barrier contact with the first portion; an amine-functionalized polymer disposed on the nanowires to functionalize a second portion of the surface of each nanowire; and an electrical contact with the substrate for measuring a current flowing between the electrical contact and the Schottky barrier contact on the nanowire when the nanowire is exposed to light or biased, such that when the nanowire is exposed to a mixture of molecules including acetone, the measured current characterizes the concentration of acetone in the mixture.

The present invention relates to the use of a non-anionic functionalized polymer in pulp and paper industry as retention aids.

This invention provides a modified glass powder, its preparation method, photovoltaic silver paste, and solar cells. The preparation method of the modified glass powder includes the following steps: S1: Mixing a first solvent, a polymeric monomer, a structure control agent, and an initiator to react and obtain polymer chains; then adding silicon tetrachloride to the reaction solution to end-cap the polymer chains, obtaining a first solution containing functionalized polymer chains; wherein the polymeric monomer includes one or more of styrene monomers, conjugated diene monomers, and vinyl monomers; S2: Mixing a second solvent, silica-containing glass powder, and the first solution to cause the functionalized polymer chains to be branched onto the surface of the glass powder, obtaining modified glass powder. The modified glass powder prepared by this method has better compatibility with the carrier in photovoltaic silver paste, and can reduce the agglomeration of glass powder, resulting in better dispersibility and storage properties.

A family of novel diazirine-based molecules as well as methods of manufacture and uses thereof are disclosed. These compounds allow non-functionalized polymers, such as polyolefins, to crosslink via C—H insertion. Such a C—H insertion process is useful, for example, for forming protective topical coatings on low surface energy films, for the covalent adhesive bonding of such films, or for creating rigid 3-dimensional polymeric structures by in-situ doping and activation of the crosslinker. The crosslinkers can be activated thermally, by UV radiation or by an electric potential.

The present disclosure relates to a polymeric composite material comprising a functionalised polymer and a reinforcement, wherein the functionalised polymer is at least partially cross-linked with the reinforcement. The disclosure also relates to processes for preparing the polymeric composite material and a cross-linkable composition for preparing the polymeric composite material. The disclosure also relates to articles comprising the polymeric composite material.

The application provides a monodisperse functionalized polymer magnetic composite microsphere and belongs to the technical field of magnetic materials. The monodisperse polystyrene microsphere is prepared by using a dispersion polymerization method, a two-step swelling method is used to obtain porous crosslinked polystyrene microspheres, then the porous crosslinked polystyrene microspheres are mixed with sulfuric acid to obtain porous polystyrene microspheres containing sulfonic acid groups on the surface, then the in-situ precipitation method is used to combine with ferrous ions, in an alkaline environment, the magnetic porous polystyrene microspheres are obtained, finally in acetonitrile solvent, various functional monomers are added to obtain the monodisperse functionalized magnetic composite microspheres which have good suspension performance and fast magnetic attraction rate.

The invention relates to a novel water-soluble dialdehyde-functionalized polymer, a method for its preparation and its use, in particular in the field of paper or paperboard manufacturing.

The system provides new methods and processes for the reaction of polymeric / oligomeric substrates with reactants comprising alkyne / alkene and / or protic nucleophilic moieties to afford functionalized polymeric / oligomeric products through the utilization of homogenous and / or heterogenous gold catalysis. More specifically, the system provides routes for reaction of polymeric / oligomeric substrates comprising varying degrees of aromatic character with alkyne / alkene bearing molecules to afford a functionalized polymeric / oligomeric product. The system additionally provides pathways wherein the inverse methodology is realized, providing functionalized materials from the reaction of polymeric substrates bearing alkyne / alkene moieties with aromatic and / or protic nucleophilic reagents. Furthermore, in a tangential methodology, the system affords functionalized polymeric materials from the reaction of polymeric substrates bearing protic nucleophilic substituents with alkyne / alkene containing molecules. The system provides pathways for the facile modification of commodity polymer materials in order to produce value-added materials utilizing current polymer infrastructure, commodity polymer feedstocks, and post-consumer plastic waste.

The application provides a kind of waste engineering slurry solidification repair material and preparation method using lithium residue, salt gypsum and chitosan complex compound, and relates to the technical field of environmental geotechnical materials.The waste engineering slurry solidification repair material comprises: a full solid waste cementing component a composed of 30-50 mass parts of salt gypsum, 30-50 mass parts of lithium residue and the rest of red mud, carbide slag and silica fume, and a functional polymer component composed of natural chitosan b and chitosan grafted with controllable degree of grafting p-nitrobenzaldehyde c.The application aims to construct a high-strength system of full solid waste by synergistically stimulating multiple sources of solid waste, and to achieve the essential transformation of waste engineering slurry from "high environmental load solid waste" to "high-performance low-carbon building resources" by supplementing the polymer component to deeply remove the shielding of reagents and the constraints of characteristic pollution.

This invention discloses a magnetic microsphere modified with a high-density carboxyl polymer brush and its preparation method. The method includes the following steps: using ATRP technology, the polymerization of GMA is precisely initiated by an azide-based initiator to synthesize PGMA with controllable molecular weight and narrow distribution; the epoxy groups of PGMA undergo a ring-opening reaction with ethylenediamine, followed by reaction with bromoacetic acid to obtain a functionalized polymer brush; utilizing the high efficiency and specificity of azide-alkynyl click chemistry, the carboxylated polymer brush is covalently grafted onto the surface of the magnetic microspheres. This invention achieves precise design of the polymer brush molecular structure and successfully prepares magnetic microspheres with significantly increased carboxyl content, up to a maximum content of 1.495 mmol·g. ‑1 The polymer brush modification strategy of this invention significantly improves the functional group density on the surface of microspheres and their binding ability with biomolecules. The resulting magnetic microspheres have strong magnetic responsiveness and are not easily leaked. They can be used as high-performance platform materials and are widely used in fields such as bioseparation, diagnostic analysis and catalysis.

Provided herein are thioether-functionalized cellulose polymers, compositions, films, fibers, particles, coatings, drug delivery articles, and methods of making and using the same. The polymers comprise a cellulose backbone of repeating anhydroglucose units and thioether substituents covalently attached to at least a portion of the hydroxyl groups of the repeating anhydroglucose units.

The present invention provides rubber compositions suitable for tyre manufacture comprising a functionalised polymer and a functionalised silica.

This invention discloses a centimeter-scale biosynthesis system based on a macro-microreactor. A mixed solution containing acrylate monomers, initiators, RAFT reagents, and functional alcohols is reacted in a macro-microreactor loaded with immobilized enzymes to obtain functionalized polymers. This invention enables the simultaneous enzymatic transesterification and polymerization of acrylate polymers within the macro-microreactor. The macro-microreactor with internal components significantly shortens the RAFT polymerization time and improves the polymerization conversion rate. The macro-microreactor's characteristic scale reaches the centimeter level, enabling high-throughput synthesis. This invention provides a technical solution for the preparation of novel functionalized polyacrylate materials and has promising prospects for industrial application.

This invention belongs to the technical field of C-H bond functionalization and sulfur-functionalized polymer material preparation of organosilicon compounds, and discloses a method for preparing iron-catalyzed sulfur-functionalized silanes, siloxanes, or polysiloxanes. This method uses α-silicon-containing C(sp...)... 3 Using silanes, siloxanes, or polysiloxanes with α-H bonds as substrates, and under conditions of additives, catalysts, solvents, and light irradiation, C-S bonds are directly constructed at the α-silyl alkyl sites to obtain α-silyl sulfide functionalized products. This invention eliminates the need for pre-activation of inert C(sp) groups. 3 The α-H bond does not rely on precious metal catalysts. The reaction is mild, the steps are simple, the atom economy is high, and the substrates are widely applicable. It can realize the efficient and controllable sulfide functionalization of small to high molecular weight silanes, and has good industrial application prospects in the field of organosilicon functional materials.

This application relates to the field of functionalized polymer materials technology, and discloses a polybutene-grafted acyl fluoride copolymer, a functionalized copolymer, and a method for preparing the same. The method for preparing the polybutene-grafted acyl fluoride copolymer includes: dissolving polybutene, a catalyst, an oxidant, and a fluorinating agent in a first organic solvent under an inert atmosphere to obtain a precursor solution; introducing carbon monoxide into the precursor solution and reacting it under photoirradiation to obtain the polybutene-grafted acyl fluoride copolymer. This application utilizes carbon monoxide as a carbon source to introduce acyl fluoride functional groups into the polybutene backbone under the action of a fluorinating agent, resulting in a polybutene material containing acyl fluoride functional groups with excellent reactivity. This material readily reacts with different functional compounds containing amine functional groups. By modifying the polybutene-grafted acyl fluoride copolymer with different functional compounds, functionalized polybutene copolymers with different hydrophilicity / phobicity, different fluorescence color development properties, and different thermal stability can be obtained.

This invention discloses a gene delivery vector, highly shear stress-sensitive nucleic acid nanoaggregates, their preparation methods, and applications. The highly shear stress-sensitive gene delivery vector includes either polymer PLGA-PGEA or polymer PLGA-PGEA / TA. This invention utilizes ethanolamine and amino-modified tannic acid to functionalize polymer PLGA-PGEA, constructing polymer PLGA-PGEA and PLGA-PGEA / TA gene delivery vectors, exhibiting high cell transfection efficiency, low cytotoxicity, and suitable particle size, showing promise for application in gene therapy for cardiovascular diseases. The PLGA-PGEA / TA gene delivery vector of this invention uses PLGA as a hydrophobic core to stabilize nanoparticles, while the outer PGEA / TA layer improves its water solubility and can also complex genes, obtaining nucleic acid nanoaggregates with the required particle size. These not only safely accumulate in the stenotic region of coronary arteries but also exhibit sensitivity to high shear stress dispersion in the stenotic region, demonstrating significant application value and clinical translational potential in the targeted treatment of atherosclerosis.

This invention discloses a modified MPP pipe for high-voltage power cable protection and its preparation method, relating to the field of polymer composite materials. It employs a functionally graded biomimetic multilayer structure and is prepared from the following raw materials in parts by weight: 60-80 parts MPP matrix resin, 15-25 parts core-shell polyacrylate elastomer, 10-15 parts surface-treated calcium sulfate whiskers, 5-10 parts hydrophobic nano-silica, 3-5 parts maleic anhydride-grafted polypropylene compatibilizer, 0.5-1 part oxazoline-functionalized polymer reactive compatibilizer, 1.5-2.0 parts compound antioxidant, 1-3 parts light stabilizer, and 1.5 parts composite lubricant. This modified MPP pipe for high-voltage power cable protection and its preparation method utilize the synergistic reinforcing effect of calcium sulfate whiskers and nano-silica, combined with the toughening effect of core-shell polyacrylate elastomer and in-situ reaction compatibilization technology.

An embolic hydrogel for use with a patient comprise an aqueous buffer and at least one functionalized polymer respectively having at least one polymer backbone chemically modified with one or more functional groups. The functional group(s) facilitate formation of primary reversible crosslinks on the polymer backbone(s), such that the embolic hydrogel transitions from a gel state to a viscous liquid state in response to a shear force applied to the embolic hydrogel, and transitions from the viscous liquid state back to the gel state in response to an absence of a shear force applied to the embolic hydrogel. The embolic hydrogel further comprises at least one phase-transitioning polymer that creates secondary crosslinks therein in response to a physiological environment, such that the embolic hydrogel transitions from the gel state to a solid state.

This invention relates to curable film-forming compositions and coating kits, each comprising: (a) a polyepoxide-functionalized polymer; (b) a polythiol-functionalized compound, wherein the polythiol-functionalized compound comprises at least two or at least three thiol functional groups, and wherein if the polythiol-functionalized compound contains hydroxyl functional groups, the ratio of thiol functional groups to hydroxyl functional groups in the polythiol-functionalized compound is not 1:1; (c) a reactive compound, different from the polythiol-functionalized compound (b), the reactive compound containing a plurality of side groups and / or terminal functional groups selected from carboxylic acids, anhydrides, amines, and phenols that are reactive with the epoxide functional groups; and (d) a pigment. The curable film-forming compositions exhibit a pigment-to-binder ratio greater than or equal to 2 and less than 3, adhesion to various substrates, and rapid sanding properties. The invention further relates to coated articles and methods for forming the same.

The application relates to a functionalized polymer electrolyte film and a preparation method and application thereof, relates to the field of electrochemistry, and forms a single-ion conductor polymer electrolyte layer on the surface of a gel polymer electrolyte film to effectively improve the ion conductivity of the polymer electrolyte, improve the transport behavior of anions and cations at the electrode / electrolyte interface, and meet the application requirements of solid-state batteries. The functionalized polymer electrolyte film comprises a gelable polymer electrolyte base film and a solution dispersion layer containing single-ion conductor polymer lithium salt monomers which is formed on one side or both sides of the surface of the gelable polymer electrolyte base film.

A coated optical article includes: an optical substrate; a first coating layer applied directly over at least a portion of an optical substrate, the first coating layer formed from a first coating composition including an aqueous medium and keto and / or aldo functional polymeric materials that are dispersed in the aqueous medium; and a second coating layer applied directly over at least a portion of the first coating layer, the second coating layer including a sol-gel and which is formed from a second coating composition. The first coating composition and second coating composition are each independently substantially free of hydrazine and hydrazide functional components.