344 results about "Polymer architecture" patented technology

A user support includes a hood structure that is supported by a back frame structure of the user support. The hood structure may comprise a one-piece homogeneous polymer structure that is formed by an additive process. The hood structure may include solid structures and at least one porous lattice matrix that is integrally formed with the solid structures.

The invention relates to a composition for use in a manufacture of paper, board or the like. The composition comprises a mixture of cationic starch having amylopectin content of at least 85%, and an amphoteric polymeric structure comprising structural units originating from non-ionic monomers, preferably (meth)acrylamide, anionic groups and cationic groups, the polymeric structure comprising cationic groups at least 0.2 mol-%.

The invention discloses a polymer structural formula identification method and system, electronic equipment and a storage medium, and belongs to the technical field of image analysis technologies. The polymer structural formula identification method comprises the following steps: acquiring a training sample from a data set; inputting the training sample into a visual large language model, and updating model parameters of the visual large language model by using a loss function so as to iteratively train the visual large language model; wherein the visual large language model comprises a visual encoder, a text encoder, an alignment module and a full-connection neural network; the trained visual large language model is deployed; and if a recognition task is received, determining an unknown polymer chemical structure image corresponding to the recognition task, and generating an SMILES character string of a polymer structural formula of the unknown polymer chemical structure image by using the visual big language model. According to the invention, the structural formula of the polymer can be efficiently and accurately identified from the image.

The invention provides a cationic conjugated polymer as well as a preparation method and application thereof. The structural formula of the cationic conjugated polymer is shown in the specification. The preparation method comprises the following steps: reacting tris (4-bromophenyl) amine and N, N-dimethyl-4-(4, 4, 5, 5-tetramethyl-1, 3, 2-dioxaborolane-2-yl) aniline in an organic solvent under the action of a catalyst and an initiator to obtain a first intermediate; the cationic conjugated polymer is prepared from the first intermediate, the second intermediate and the third intermediate under the action of a catalyst and an initiator. The cationic conjugated polymer shows good photo-thermal and photodynamic performance under the irradiation of near-infrared light with the wavelength of 980 nm, so that the effect of inhibiting the growth of bacteria is realized. # imgabs0 #

An electronic device may have a display mounted in a housing. The display may have a display panel with an array of pixels on a flexible substrate. A display cover layer may overlap the display panel. The flexible substrate may have a protruding portion that forms a tail. When the display is mounted in the housing, the tail may be bent back on itself to create a bend. The bend may be embedded in molded polymer. The device may have structures that help prevent the display cover layer from being compressed inwardly towards the rear of the housing such as frame structures embedded in the molded polymer and / or housing sidewall structures. Optical components and optical waveguides may be embedded within the molded polymer. Mating chamfers on the display cover layer and housing may help seat the display cover layer in the housing.

A user support includes a hood structure that is supported by a back frame structure of the user support. The hood structure may comprise a one-piece homogeneous polymer structure that is formed by an additive process. The hood structure may include solid structures and at least one porous lattice matrix that is integrally formed with the solid structures.

The invention discloses a preparation method of a self-repairing layer coating liquid, and particularly relates to a preparation method of a self-repairing layer coating liquid with high elongation at break, which comprises the following steps: 1) synthesizing a polyurethane prepolymer solution A terminated by double isocyanate groups; (2) synthesizing a single-side double-bond end-capped polyurethane prepolymer; (3) synthesizing a bottle-brush-shaped polymer; and 4) preparing the self-repairing layer coating liquid with high elongation at break. Meanwhile, the invention also relates to a paint surface protective film. The invention solves the technical problem of providing a high-elongation-at-break self-repairing layer with rigidity and ductility and applying the high-elongation-at-break self-repairing layer to a paint surface protective film. According to the self-repairing layer coating liquid prepared through the method, polyurethane with the self-repairing performance serves as the basis, by introducing a bottle-brush-shaped polymer structure, the ductility of a self-repairing layer after curing is improved, the elongation at break of a coating is improved, it is predicted that the elongation at break can be increased from 100% to 300% or above, and then the problem of coating cracking is effectively avoided.

A connection component for an electrical conductor includes: at least one component body formed, at least in portions, by a plastics material. The plastics material includes a flame retardant. The plastics material is free of perfluorinated or polyfluorinated alkyl compounds. The flame retardant includes a polymer structure of the plastics material and / or an additive incorporated in the polymer structure of the plastics material that substitutes for the perfluorinated or polyfluorinated alkyl compounds, and / or an outer layer formed on the component body.

The present invention provides a dental implant or subperiosteal implant having a porous polymer structure and its use in methods of treatment of periodontal diseases, conditions and symptoms.

A composite separator comprises at least one base film layer and a self-healing functional layer laminated on a surface of the base film layer, wherein the self-healing functional layer contains a thermally cyclopolymerizable precursor material, and / or after the self-healing functional layer has self-healed, the precursor material forms a crosslinked polymer structure. The surface of the base film layer of the composite separator of the present application is provided with a self-healing functional layer, and the composite separator functions to isolate the positive electrode plate from the negative electrode plate and conduct lithium ions while blocking electrons when the secondary battery is under normal working conditions. When overheating or thermal runaway occurs inside the secondary battery, the precursor material in the self-healing functional layer undergoes a thermal polymerization reaction to generate a high-temperature-resistant and high-mechanical-strength crosslinked polymer.

Aspects of the present disclosure include methods for making a polymeric structure having one or more microchannels. Methods according to certain embodiments include conveying a polymerizable composition through a conduit into a space between a build elevator and a build surface of a liquid interface production module, irradiating the polymerizable composition positioned between the build elevator and the build surface to generate a polymerizable composition having a first polymerized region of the polymerizable composition having a microchannel in contact with the build elevator and a first non-polymerized region of the polymerizable composition in contact with the build surface, displacing the build elevator away from the build surface, irradiating the first non-polymerized region of the polymerizable composition to generate a second polymerized region of the polymerizable composition in contact with the first polymerized region and a second non-polymerized region in contact with the build surface and repeating one or more steps in a manner sufficient to generate a polymeric structure having one or more microchannels positioned within the polymeric structure. Systems having a conduit for conveying a polymerizable composition to a liquid interface polymerization module having a build elevator and a build surface configured are also described. Polymer structures having a predetermined fluidic microchannel network prepared by the subject methods and non-transitory computer readable storage medium for practicing the subject methods are also provided.

The invention provides a multifunctional monomer and a preparation method thereof, a solid electrolyte, a lithium ion battery and electric equipment. The polyfunctional monomer has a structure as shown in a formula (1), when the polyfunctional monomer is used as a reactant raw material and is subjected to in-situ curing in electrolyte to form the solid electrolyte, the functionality of the polyfunctional monomer is relatively high, and the polyfunctional monomer can form a highly cross-linked polymer network structure in a polymerization reaction process; the structure endows the polymer with excellent mechanical properties, such as high strength and high modulus, so that the polymer can maintain better structural stability when bearing external stress, the high voltage resistance of the polymer structure is improved, the solid electrolyte is not easy to decompose or crack and lose efficacy, the structural damage of the electrolyte material in the charging and discharging process is inhibited, and the service life of the electrolyte material is prolonged. The electrochemical stability of the electrolyte material is maintained, so that the service life and the safety of the battery are prolonged, and the charge-discharge performance of the battery is maintained.

The invention relates to the field of fiber membrane preparation, in particular to a preparation and test method of a microfiltration composite fiber membrane, which comprises the following steps: preparing a PVA (Polyvinyl Alcohol) solution; accurately and respectively weighing CA and GO, and respectively adding the CA and the GO into the prepared PVA solution to obtain a PVA / CA / GO spinning solution; assembling SVF base cloth on an unwinding mechanism, coating the front end of the base cloth on the surface of a metal mesh curtain above a solution tank, then pouring a spinning solution into the solution tank, and performing electrostatic spinning after adjusting spinning conditions to obtain a composite fiber membrane; the composite fiber membrane is subjected to hot pressing treatment, so that carboxyl on a cross-linking agent citric acid and hydroxyl of a PVA chain are subjected to an esterification reaction, water resistance is improved through structural regulation and control of a PVA polymer, and the microfiltration composite fiber membrane is obtained. According to the invention, the contact area of the cross-linking agent citric acid and PVA is greatly increased, so that the cross-linking effect is more sufficient, and the fiber membrane can maintain a good fiber form after working in water for a long time.

The invention discloses a high-temperature-resistant environment-friendly drilling fluid filtrate reducer based on humic acid and sodium alginate and a preparation method of the high-temperature-resistant environment-friendly drilling fluid filtrate reducer, and belongs to the technical field of petroleum drilling engineering oil fields. On the premise that a sulfonic acid group is not introduced, humic acid and sodium alginate are selected as main raw materials of the filtrate reducer, and a stable polymer structure is constructed by grafting acrylamide and N-vinyl pyrrolidone 4-acryloylmorpholine, so that the filtrate loss control capability at high temperature is effectively improved, the filtrate reducer does not contain sulfonic acid groups, and the filtrate reducer is environment-friendly and pollution-free. The environment-friendly property and the degradability are excellent. Compared with the existing filtrate reducer, the filtrate reducer provided by the invention has obvious advantages in the aspects of raw material source, synthesis cost, thermal stability, environmental protection performance and the like, is particularly suitable for high-temperature and high-salt complex working conditions of a green drilling fluid system, and has good popularization and application prospects.

The application belongs to the technical field of polymer medicine synthesis, and particularly relates to a polymer for inducing tumor immunogenic cell death, a preparation method and application. The polymer for inducing tumor immunogenic cell death provided by the application has a structure as shown in formula I: in formula I, m is an integer of 110-120; n is an integer of 70-75; p is an integer of 21-79; and R is one of a tertiary amine group, a sulfide group and a tertiary amine sulfide group. The polymer provided by the application has pH responsiveness, can be self-assembled to obtain a polymer nanovesicle, can load drugs, can induce tumor immunogenic cell death (ICD) after application to form an in-situ tumor vaccine, can realize controllable release of a hydrophobic immunoadjuvant, can polarize tumor-associated macrophages (TAMs), and is suitable for tumor immunotherapy application.

A method, in accordance with one aspect of the present invention, includes, during performance of an additive manufacturing process that includes photocuring of a resin, monitoring light output generated by a fluorophore in the resin that exhibits aggregation-induced emission (AIE) behavior. The method also includes outputting an indication of an extent of photocuring based on the monitored light output. The method also includes adjusting in real time a parameter of the additive manufacturing process based on the output indication. A method, in accordance with another aspect of the present invention, includes analyzing at least one mechanical property of a polymeric structure formed by an additive manufacturing process based on light output generated by a fluorophore in the structure.

The invention belongs to the field of electrochromic materials, and relates to a preparation method of a colorless-orange red reversible switching electrochromic material based on phenothiazine. The method comprises the following steps: functionalization of phenothiazine micromolecules, introduction of polymerizable functional groups on a phenothiazine structure, ring-opening polymerization in which phenothiazine derivatives participate, dehydration of cyclization polymerization intermediates, and preparation of the electrochromic material. Due to the conjugated electron-rich structure of phenothiazine, phenothiazine has advantages as an electroactive group of an electrochromic material; in addition, a plurality of active sites provide synthesis advantages for polymer structure regulation and control. A non-coplanar propeller configuration and a polymeric monomer are introduced into a phenothiazine skeleton through a synthesis reaction, and the electrochromic film prepared after polymerization has the electrochromic characteristics of reversible switching between colorless color and orange red color, good stability and the like, and has huge application potential in the fields of intelligent windows, camouflage materials and the like.

The invention provides a super-long slow-release slump retaining agent suitable for low-carbon cement as well as a preparation method and application thereof. The slump retaining agent is obtained by carrying out a Graft From grafting reaction on a prepolymer main chain and a side chain with a block structure, the main chain of the prepolymer is of a polymer structure with a plurality of modifiable hydroxyl groups, and is obtained by free radical polymerization of unsaturated enol monomers in the presence of an initiator and a chain transfer agent; the side chain is obtained by polymerization reaction of a monomer A, a monomer B, a monomer C and a monomer D; the monomer A is hydrophobic alkyl acrylate, the monomer B is unsaturated acid, the monomer C is hydroxyl ester, and the monomer D is polyoxyethylene ether. An ATRP initiator of a main chain initiates generation of a multi-branched side chain structure, a side chain contains carboxylic acid and hydroxyl ester at the same time, an ester bond between the main chain and the side chain can be hydrolyzed to release a side chain slump retaining component, and the released slump retaining component can continue to be hydrolyzed through a small monomer to gradually release adsorption groups; and the cement particles can be continuously and slowly adsorbed on the cement particles so as to prolong the slurry fluidity retention time.

The invention discloses an ultra-microporous branched polyaryl piperidinyl anion exchange membrane material as well as a preparation method and application thereof, and relates to the field of anion exchange membrane materials for producing hydrogen by electrolyzing water. According to the ultra-microporous branched polyaryl piperidinyl anion exchange membrane material, a four-functionality branching agent with a structure shown in a formula I is introduced into a polymer structural unit of polyterphenyl piperidone, and a polyaryl piperidinyl compound with a four-branch norbornene bis-benzocyclobutane structure is formed. By adopting the technical scheme, the structural rigidity of a polymer skeleton is improved, the formation of a large number of ultra-microporous structures is promoted, the ionic conductivity of the membrane material is effectively improved, and meanwhile, the problem of relatively poor dimensional stability caused by excessive water absorption of the membrane material is solved; the prepared anion exchange membrane has a wide application prospect in the field of hydrogen production by water electrolysis.

The invention belongs to the technical field of sewage treatment, and particularly discloses a sludge deep dehydration conditioner based on a tannic acid graft polymer as well as a synthesis method and industrial application of the sludge deep dehydration conditioner. The conditioner is a novel derivative formed by grafting tannic acid to a main chain of a synthetic polymer or a natural polymer in a chemical bonding mode, the molecular structure of the conditioner comprises high-density cation active sites and three-dimensional net-shaped chelating groups, and the conditioner has the strong current neutralizing capacity and the multi-level adsorption characteristic. The derivative is realized through an oriented synthesis technology for the first time, is innovatively applied to the field of sludge dewatering, can efficiently destroy a sludge extracellular polymer structure, and remarkably improves the bound water release efficiency. According to the conditioner disclosed by the invention, through accurate design of a molecular structure, the sludge dewatering rate is increased by 20% or above while the dosage of a medicament is reduced, and the grafting rate and charge density parameters form core protection characteristics, so that the technical bottleneck of a traditional flocculating agent in deep sludge dewatering is broken through.

This invention discloses a four-armed star-shaped polymer containing a polyoxyethylene structure, its preparation method, composition, and applications. The polymer is prepared by mixing an unsaturated organic carboxylic acid compound, an unsaturated sulfonic acid compound, and water, stirring to obtain a reaction solution, and continuously stirring and heating the reaction solution. An aqueous solution of a polyether macromonomer compound and the initiator aqueous solution are added to the heated reaction solution, followed by polymerization and purification. The polymer structure contains a large number of carboxyl groups, sulfonic acid groups, and ether groups, as well as abundant polyoxyethylene groups and alkyl chains, giving the polymer good water solubility and excellent chelating properties for metal ions. The polymer prepared by this method shows good effects in cleaning, defoaming, and scale inhibition. Furthermore, compositions formed by combining the polymer with other corrosion and scale inhibitors exhibit good compatibility and can be used for scale inhibition in high-hardness water.

The invention discloses a high-stability pyrene tetraketone quinone polymer negative electrode material as well as a preparation method and application thereof. The negative electrode material is prepared by taking pyrene-4, 5, 9, 10-tetraone and an aminoquinone compound as reaction monomers through condensation reaction in a solvent medium, and a stable polymer structure with an expanded pi conjugated skeleton and rich proton storage active sites can be formed; the material effectively improves proton storage capacity, charge transfer dynamic performance and structural stability in a long-term cycle process, shows outstanding electrochemical performance after being assembled into an organic water-based proton battery, effectively solves the defects that a traditional organic electrode material is easy to dissolve in a water-based system, limited in specific capacity and short in cycle life, and has a wide application prospect. The method has a good application prospect in the field of energy conversion such as large-scale electrochemical energy storage.

A dissolvable solid cleansing article that includes from about 5% to about 60%, by weight on a dry article basis, of a polymeric structurant, from about 13% to about 90%, by weight on a dry article basis, of a surfactant system comprising. The surfactant system includes from about 10% to about 54% by weight on dry article basis, of a taurate surfactant comprising an acyl taurate surfactant. The dissolvable solid article can be a dissolvable solid fibrous article and the polymeric structurant can be polyvinyl alcohols (PVOH).

The invention relates to the technical field of high polymer materials, and discloses a stabilizer-containing high-temperature-resistant chlorinated polyvinyl chloride and a preparation method thereof.The chlorinated polyvinyl chloride is prepared by taking chlorinated polyvinyl chloride, polyvinyl chloride, a calcium-zinc stabilizer and a high-temperature-resistant stabilizer as raw materials through mixing and extrusion processes, wherein the high-temperature-resistant stabilizer is basalt fiber of a macromolecular polymer of which the surface is modified with benzophenanthrene and sulfydryl functional groups, and in the subsequent melt extrusion process, the macromolecular polymer can interact with chlorinated polyvinyl chloride and polyvinyl chloride, so that the interface problem between the basalt fiber and a base material is properly solved; and the macromolecular polymer structure contains a rigid triphenylene ring, so that the rigidity and the stability of a molecular chain network can be improved, and the high-temperature resistance of the material is effectively improved.

• An electronically-controlled method (600) for manufacturing a non-polymer structure (400) with a desired shape, the electronically-controlled method (600) comprising placing (602) a non-polymer ply of material (210) on a forming tool (110), wherein the step of placing (602) 5 includes placing a ceramic matrix composite ply (212) on the forming tool (110), and wherein the method is configured for manufacturing a ceramic matrix composite structure (400) with a desired shape, the electronically-controlled method further comprising: ̵ picking (502) a first ceramic matrix composite ply (212) that is sandwiched between a first bottom backing film (213) and a first top backing film (211); 10 ̵ peeling away (504) the first bottom backing film (213) from the first ceramic matrix composite ply (212); ̵ placing (506) the first ceramic matrix composite ply (212) on a tool surface (112) with the first top backing film (211) facing away from the tool surface (112); ̵ positioning (508) a vacuum membrane (142) against the first ceramic matrix composite ply 15 (212) that is on the tool surface (112) to provide a vacuum-tight seal against the first ceramic matrix composite ply (212); ̵ drawing a vacuum (510) to pull the vacuum membrane (142) against the first ceramic matrix composite ply (212) and thereby to form the first ceramic matrix composite ply (212) to shape of the tool surface (112); 20 ̵ releasing (512) the vacuum; and after the vacuum is released (514), peeling away the first top backing film (211) from the first ceramic matrix composite ply (212) and thereby to provide the ceramic matrix composite structure (400) with the desired shape.

The invention discloses crystalline polyesteramide as well as a preparation method and application thereof, and relates to the technical field of high polymer materials. The method comprises the following steps: taking aziridine with a protecting group and cyclic anhydride as polymeric monomers, carrying out bulk polymerization, melt polymerization or solution polymerization under the action of a catalyst to obtain amorphous polyesteramide, and carrying out polymer post-treatment and aziridine protecting group removal to obtain the crystalline polyesteramide with a-C = O-NH-structure. The method has the advantages that the adopted monomers are rich in source, cheap and easy to obtain, the polymer is rich in structure and diversified in structure, and the polymerization method is simple. The prepared polyesteramide has excellent crystallinity and degradability, and has potential application prospects in the fields of biology, medicine, flexible electronics and the like.

Disclosed is a dissolvable solid article comprising: (a) from about 5% to about 60%, by weight on a dry article basis, of a polymeric structurant; (b) from about 5% to about 90%, by weight on a dry article basis, of a surfactant system; (c) from about 0.1% to about 25%, by weight on a dry article basis, of a liquid material having ClogP of from about 0 to about 5 such as triethyl citrate. The dissolvable solid article disclosed herein can: incorporate skin care additives without deteriorating properties of the articles, wherein such properties are, for example, dissolution property; and / or improve bonding between piles and / or fibrous elements, when the article is layered and comprises at least 2 plies and / or when the article is a fibrous article comprising a plurality of fibrous elements.

In a method for producing a mineralised polymer component, a support structure (1) made of a polymer-based material is formed on the basis of an image data set, wherein the support structure (1) has at least one first region (5), in which the polymer-based material is formed, and at least one second region (2), which is designed as a hollow structure. Subsequently, at least one inorganic mineral phase is formed on the surface of the support structure (1) and / or within the first region (5) and / or on at least one inner surface of the first region (5).

This platform integrates machine learning models with traditional mathematical optimization to efficiently solve complex, multi-objective problems in polymer discovery. Machine learning models, such as neural networks, generate initial polymer structures by modeling complex, non-linear relationships between various molecular properties. These initial structures are then refined through mathematical optimization techniques to ensure they meet specific constraints and performance criteria related to the desired molecular properties. This hybrid approach accelerates polymer development across various applications, including drug delivery, sustainable materials, and advanced technologies, offering tailored solutions that optimize performance, environmental sustainability, and efficiency.

This invention relates to an equivalent accelerated testing method for plexiglass based on creep constitutive equations, belonging to the technical field of accelerated testing of polymer structures. Addressing the testing requirements for the creep performance of plexiglass structures, this invention shortens the testing cycle and saves testing costs through the design of testing temperature and pressure. Simultaneously, the reduced testing time indirectly saves manpower and material resources, and also reduces the frequency of random risks such as power outages and equipment failures. Therefore, the testing method of this invention has significant timeliness and economic efficiency, and can effectively improve the accuracy of quantitative analysis, possessing important value for engineering practice.