127 results about "Functionalized polymer" patented technology

The invention discloses a mechanical property regulation and control method of an aromatic microcapsule, and belongs to the technical field of microcapsules. The preparation process of the microcapsule comprises the following steps: self-assembling CNC and an amino-functionalized polymer ligand on an oil-water interface to form a stable Pickering emulsion. Wall materials are deposited on the surfaces of emulsion droplets in situ, the CNC interface coverage rate is regulated and controlled by adjusting parameters such as the ligand concentration and the emulsion water phase pH value, and then a series of aromatic microcapsules with different mechanical properties are prepared. In addition, the functional microcapsules can be designed in a customized manner according to different application requirements, and good application prospects are shown.

The invention discloses a battery intelligent thermal management coating based on reversible Diels-Alder reaction and a preparation method and application thereof.The coating is of a multi-layer composite structure and comprises a basic binding layer, a functional thermal management layer and a protective isolation layer, the functional thermal management layer is composed of a functional polymer grafted with furan and maleimide groups, the reverse reaction temperature of the reversible Diels-Alder reaction is 80-120 DEG C, the temperature of the functional thermal management layer is 20-30 DEG C, and the temperature of the protective isolation layer is 20-30 DEG C. And the heat absorption capacity is 500-800J / g. The preparation method comprises the following steps: preparing slurry containing the functional polymer, coating a battery assembly with the slurry, and curing at 80-100 DEG C to form a coating. The coating can be applied to a battery electrode, an electrochemical energy storage device and a battery module, instantaneously absorbs heat through reverse reaction at the early stage of thermal runaway of the battery, and automatically resets after the temperature is reduced, so that circulating reuse is realized. The material is high in heat absorption efficiency, high in response speed, compatible with the electrochemical performance of the battery, capable of effectively reducing the thermal runaway risk of the battery, and suitable for various electrochemical energy storage devices such as lithium ion batteries and sodium ion batteries.

The invention provides a hot melt adhesive and a preparation method thereof, and relates to the technical field of adhesives. According to the hot melt adhesive, amorphous polyolefin (APAO) is used as a main body, ethylene-vinyl acetate copolymer (EVA) is added as a compatilizer, and Fischer-Tropsch wax is used as a viscosity modifier. The preparation method comprises the following steps: firstly synthesizing a dopamine functional polymer, and then carrying out melt blending on the dopamine functional polymer, APAO, EVA, tackifying resin and other components so as to stably introduce a catechol group into a hot melt adhesive system. When the hot melt adhesive is bonded with a metal surface, the catechol group can form a firm coordinate bond with metal ions, so that the adhesive force is greatly improved. The product provided by the invention has high adhesive force, excellent flexibility, good compatibility and construction performance, and is suitable for bonding and sealing metal materials.

The invention relates to the technical field of chemical preparation, and discloses a preparation method of a phthalimide compound, which comprises the following steps: S1, raw material mixing: sequentially adding phthalic anhydride, a primary amine compound, p-toluenesulfonic acid and phosphorus pentoxide into a reaction container with a stirring device and a temperature control module, and stirring for 1-2 hours; adding ethanol as a solvent, and carrying out a stirring reaction; s2, curing: cooling the reaction liquid to 20-25 DEG C, slowly adding deionized water into the reaction liquid while stirring, standing, and separating out a solid product; a traditional dehydrating agent is changed into a low-cost green dehydrating agent combination, so that the cost loss is reduced, the stimulation effect is reduced, the catalytic activity is equivalent to that of p-toluenesulfonic acid by adding a new sulfonic group functional polymer, but the problems of volatility of liquid acid and equipment corrosion are avoided, a low-toxicity and low-cost solvent of ethanol is added, the toxicity is reduced, and the environment-friendly dehydrating agent is prepared. The preparation is safer, the cost is lower, and the applicability is wider.

The invention belongs to the technical field of conductive materials, and particularly relates to a method for preparing and activating pyridine functionalized swelling polymer microspheres and a method for preparing core-shell structure polymer conductive microspheres. The preparation method comprises the following steps: by taking polystyrene microspheres as seeds, preparing pyridine functionalized polymer microspheres through an emulsion swelling method, then introducing Pd < 2 + > ions through coordination, preparing activated microspheres with palladium nanoparticles uniformly coated on the surfaces of the polymer microspheres through in-situ reduction, preparing nickel-plated microspheres with uniform metal coatings through chemical plating, and finally preparing the polymer microspheres with uniform metal coatings. And finally, preparing the core-shell structure gold-plated polymer conductive microspheres through in-situ reduction, and applying the core-shell structure gold-plated polymer conductive microspheres to preparation of anisotropic conductive films. Through an emulsion swelling method, not only can the polymer microspheres with adjustable sizes be prepared, but also the polymer microspheres with different morphologies can be prepared. The preparation method of the conductive microspheres has the advantages of being wide in raw material source, easy and convenient to operate and adjustable in metal coating thickness, and is suitable for high-precision packaging in the microelectronic industry.

A stabilizer for inclusion in a photohardenable composition comprising a hardenable resin component and a photoinitiator, the stabilizer comprising a stable free radical functionalized polymer, wherein the stabilizer is dispersible or dissolvable in the hardenable resin component. A photohardenable composition including a hardenable resin component, a photoinitiator, and a stabilizer comprising a stable free radical functionalized polymer and methods including a photohardenable composition and products of the methods are also disclosed. A photohardenable composition can further include an upconverting component.

A lactam-functionalized polymer is disclosed. The dihydroxy lactam based polymer includes polyesters, polycarbonates, polyethers, poly (ester ethers), poly (ester amides), poly imides, polyamides, poly acrylates and poly (ester imides), and polyurethanes. The applications of the dihydroxy lactam based polymers are also disclosed.

The present invention relates to side-chain functionalized polymers and copolymers and their use as alkaline anion exchange membrane materials, for example in alkaline water electrolyzers, fuel cells or flow batteries.

The invention belongs to the technical field of high polymer materials and coatings, and relates to an amino POSS (Polyhedral Oligomeric Silsesquioxane) crosslinking system for a water-based coating. The system takes water as a continuous phase, and comprises a water-soluble amino functionalized polyhedral oligomeric silsesquioxane (NPOSS) and an epoxy functionalized polyacrylate polymer microsphere aqueous dispersion, additives belonging to volatile organic compounds (VOC), such as organic solvents and coalescing agents, are not additionally added into the system. When in use, NPOSS as a multifunctional cross-linking agent is subjected to amine-epoxy addition reaction with an epoxy functionalized polymer in a water phase, and a cross-linked thermosetting coating can be formed on the surface of a base material such as an aluminum material, glass and the like. Compared with an existing water-based paint technology, the technology has the advantage that VOC emission in the film forming process of the water-based paint is remarkably reduced. Meanwhile, the NPOSS endows the coating with excellent thermal stability, mechanical strength and chemical resistance. The curing strategy is completely water-based, simple and convenient in process, environment-friendly and suitable for various fields with environmental protection requirements such as home furnishing, automobiles, aerospace and the like.

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.

The present invention relates to relates to a polymer formulation for three-dimensionally (3D) printing an article by stereolithography, the formulation comprising a functionalized polymer. The invention further relates to lithographic methods to form 3D objects that incorporate the aforementioned polymer formulation.

The invention belongs to the technical field of biomedicine, and particularly relates to a preparation method of a potassium K < + > recognition response quartz crystal microbalance chip and a blood potassium concentration quantitative detection method. A 3-aminopropyltriethoxysilane (APTES) solution is used for carrying out functionalization treatment on the surface of a silicon dioxide sheet, so that a large number of amino functional groups are obtained on the surface of the silicon dioxide sheet. The preparation method comprises the following steps: taking 4-acrylamide benzene-15-crown-5 as a template, then anchoring an ATRP (Atom Transfer Radical Polymerization) initiator-bromoisobutyryl bromide on the surface of the template through a covalent bond, and carrying out grafting construction of a benzene-15-crown-5 functional polymer brush by adopting Cu0-mediated surface-initiated atom transfer radical polymerization (Cu0-SI-ATRP) by taking 4-acrylamide benzene-15-crown-5 as a polymeric monomer. The potassium selective quartz crystal microbalance based on the crown ether functionalized polymer brush is obtained.

A functionalized copolymer comprising propylene repeating units and ω-substituted α-olefin repeating units, is disclosed. Also disclosed are polymer blends comprising the functionalized polymer and po

An embolic hydrogel for a patient comprises an aqueous buffer and at least one functionalized polymer, each having at least one polymer backbone chemically modified with one or more functional groups. The functional groups facilitate the formation of a primary reversible cross-link on the polymer backbone such that the embolic hydrogel transitions from a gel state to a viscous liquid state in response to shear forces applied to the embolic hydrogel and transitions from the viscous liquid state to the gel state in response to the absence of shear forces applied to the embolic hydrogel. The embolic hydrogel also includes at least one phase change polymer that produces secondary crosslinking therein in response to a physiological environment such that the embolic hydrogel transitions from a gel state to a solid state.

The present invention relates to the use of a non-anionic functionalized polymer in water or wastewater treatment as a coagulant.

The present invention relates to functionalized polymers, methods of making functionalized polymers, and uses of functionalized polymers, especially in the field of personal care.

An example of a method includes providing a substrate with an exposed surface comprising a first chemical group, wherein the providing optionally comprises modifying the exposed surface of the substrate to incorporate the first chemical group; reacting the first chemical group with a first reactive group of a functionalized polymer molecule to form a functionalized polymer coating layer covalently bound to the exposed surface of the substrate; grafting a primer to the functionalized polymer coating layer by reacting the primer with a second reactive group of the functionalized polymer coating layer; and forming a water-soluble protective coating on the primer and the functionalized polymer coating layer. Examples of flow cells incorporating examples of the water-soluble protective coating are also disclosed herein.

The invention relates to a thermally expandable composition comprising: a) At least one thermoplastic polymer TP and / or at least one solid rubber R and b) At least one polymeric blowing agent BA selected from the group consisting of sulfonyl hydrazide-functionalized polymers, sulfonyl semicarbazide-functionalized polymers, carbamate-functionalized polymers, and ureido carbamate-functionalized polymers, wherein the polymeric blowing agent BA has a number average molecular weight (Mn) determined by gel permeation-chromatography (GPC) using polystyrene 0 as standard of at least 500 g / mol, preferably at least 750 g / mol.

The invention relates to the technical field of preparation of micro-nano adsorption materials, in particular to a magnetic porous microsphere for in-vitro diagnosis and a preparation method of the magnetic porous microsphere. The invention discloses a preparation method of magnetic porous microspheres for in-vitro diagnosis. The preparation method comprises the following steps: S1, preparing polystyrene-based spheres; s2, preparing porous polystyrene microspheres; s3, preparing magnetic composite microspheres; s4, constructing a porous silicon dioxide middle layer; and S5, introduction of a surface functionalized layer: polymerizing a monomer containing a functional group on the surface of the composite microsphere coated with a layer of porous silicon dioxide through a monomer swelling polymerization method, so as to introduce a functionalized polymer layer on the surface of the microsphere and in a porous channel, thereby obtaining the magnetic porous microsphere for in vitro diagnosis. The prepared magnetic porous microspheres are low in settling velocity, good in magnetic separation efficiency, good in monodispersity, uniform in particle size distribution, high in magnetic content, high in surface functional group content and wide in application scene.

Functionalized polymeric liquid polysiloxane material compositions comprising non-organofunctional Q-type siloxane moieties and mono-organofunctional T-type and / or D-type siloxane moieties, wherein the composition comprises aminophenyl, secondary amine, isocyanate and / or epoxide functionalities, methods for producing the polymeric liquid polysiloxane material and associated uses, formulations and preparations of the material.

The invention relates to a polymer preparation technology, and discloses a functionalized lactam oligomer, a preparation method and application thereof, a functional polymer and a preparation method thereof. The functionalized lactam oligomer contains a lactam oligomerization unit and a functional unit bonded with the lactam oligomerization unit, and the melting point of the functionalized lactam oligomer is 180-220 DEG C; the preparation method comprises the following steps: reacting a functional agent with lactam under a ring-opening polymerization reaction condition; the functional agent has a functional group capable of bonding with an oligomeric unit of the lactam. The functional polymer contains the functional lactam oligomer, and the functional lactam oligomer is bonded with the chain segment of the polymer. According to the functionalized lactam oligomer, functional groups can be efficiently introduced into polymer chain segments, preparation of the functionalized polymer is achieved, particularly, the dyeing function is uniform in effect and high in stability, the excellent performance of polymer products can be kept, the process is simple, and the cost is low.

This invention relates to a diesel engine lubricating oil composition comprising or resulting from the admixing of: (i) base oil, (ii) a functionalized polymer, (iii) an overbased magnesium based detergent, (iv) an overbased calcium based detergent and (iv) one or more, optionally borated, higher and lower molecular weight PIBSA-PAM dispersants. The composition has a total sulfated ash of less than or equal to 1.0 wt. %, a kinematic viscosity at 100° C. of 5 to 20 cSt, a total phosphorous level of less than or equal to 0.120 wt. %, and a total sulfur level of less than or equal to 0.4 wt. % and provides a Cummins ISM oil filter delta pressure (OFDP) test result at 150 hours of less than 30 kPa. Also provided are a method of making the composition, a method of lubricating a diesel engine, a method of improving wear performance and soot dispersancy and reducing emissions of a diesel engine, and a diesel engine oil additive concentrate composition.

The application belongs to the technical field of polymer material recycling and catalytic chemistry, and discloses a composite catalyst for PET waste bottle alcoholysis and a preparation method thereof. The composite catalyst is based on biomimetic enzyme engineering and dynamic covalent chemistry strategy, and comprises a binuclear metal cluster active center, a limited microenvironment shell layer and a dynamic covalent network skeleton. The binuclear metal cluster is constructed by zinc / cobalt / manganese ions and a tridentate ligand C9H8N2O4, the shell layer is a polydopamine derived functional polymer, and the skeleton is formed by cross-linking aromatic and aliphatic monomers through borate ester bonds. The application solves the performance degradation problem caused by the instability of the active center of the existing enzyme-like catalyst in industrial circulation application. The catalyst not only has the enzyme-like catalytic characteristics of high activity and high selectivity, but also realizes self-repairing after damage through the built-in multiple dynamic chemical mechanism, thereby providing a new catalytic material with performance and durability for efficient and sustainable chemical recycling of PET waste bottles.

Embodiments of the invention provide amperometric analyte sensors having elements selected to optimize enzymatic activities associated with such sensors including polymers functionalized with enzymatic mediators as well as methods for making and using such sensors. While embodiments of the invention can be used in a variety of contexts, typical embodiments of the invention include glucose or ketone sensors used in the management of diabetes.

The present invention relates to an asphalt composition comprising a modified bitumen with a hydroxyl-functionalized polymer configured to create a thermally reversible cross-linking network within the composition, wherein the hydroxyl functionalized polymer is selected from the group comprising: hydroxyl functionalized polyolefin thermoplast, hydroxyl functionalized polyolefin elastomer, hydroxyl functionalized polyolefin plastomer.

The invention relates to a functionalized copolymer comprising propylene and / or ethylene repeating units and ω-substituted α-olefin repeating units The invention also relates to polymer blends comprising the functionalized polymer and poly(propylene) and / or poly(ethylene) as well as methods for producing the same.

The invention relates to the technical field of anion exchange membranes, in particular to a cross-linked polyaryl anion exchange membrane and a preparation method thereof. The preparation method of the anion exchange membrane comprises the following steps: S1, synthesizing a side chain type unfunctionalized polymer by using a benzene-containing monomer and 7-bromo-1, 1, 1-trifluoroheptane-2-ketone as raw materials through an acid catalytic polymerization reaction; s2, introducing an ionic group and a cross-linkable group through a functional reaction with a functional reagent and a cross-linking agent to obtain a functional polymer solution; s3, finally, the cross-linking type polyaryl anion exchange membrane is obtained through a flat plate tape casting method and an anion exchange reaction. The preparation method has the advantages of simple synthesis steps and simple film forming process, and can be used for large-scale production. The prepared anion exchange membrane has excellent ionic conductivity, alkali resistance and mechanical property.

The invention discloses plastic particles for an automobile fuel tank. The plastic particles are prepared from the following components: polyvinyl alcohol powder, a plasticizer, polyamide 6, a reactive compatilizer, maleic anhydride grafted polyethylene, nano layered silicate, an antioxidant and a lubricant. The reactive compatilizer is an epoxy functionalized polymer with an epoxy value of 0.05-0.15, and the nano layered silicate is organic modified montmorillonite; in addition, the invention also discloses a preparation method of the plastic particle. Compared with a traditional ethylene-vinyl alcohol copolymer structure, the ethylene-vinyl alcohol copolymer has the advantages of cost, recoverability and environmental adaptability, although the dry-state barrier property is slightly poor, the comprehensive performance is better, compared with a common modified polyamide scheme, through unique material system design, qualitative leap is achieved in the barrier property and the adhesion, and the application prospect is wide. The core technical problem of how to realize high-strength combination of the high-polarity barrier material and the non-polarity HDPE through molecular design in the background technology is solved.

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.

An example of a kit includes a flow cell, a primer fluid, and a cleaving fluid. The flow cell includes at least one surface functionalized with a polymeric hydrogel including azide functional groups or amine functional groups. The primer fluid includes a plurality of alkyne-containing primers, each alkyne-containing primer having an amino cleavable group attaching a primer sequence of the alkyne-containing primer to an alkyne-containing moiety of the alkyne-containing primer. The cleaving fluid includes a substance that is reactive with the amino cleavable group.