114 results about "Polymer architecture" patented technology

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 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.

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).

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.

The application relates to the field of photoelectric technology, and discloses a conjugated polymer thin film and a preparation method and application thereof. In the presence of a first solvent and a first catalyst, ternary copolymerization is carried out on (4,8-bis(5-(2-ethylhexyl)-4-fluorothiophenyl)benzo[1,2-b:4,5-b']dithiophenyl)bis(trimethyl tin), 1,3-bis(5-bromothiophene-2-yl)-5,7-bis(2-ethylhexyl)benzo[1,2-c:4,5-c']dithiophene-4,8-dione and a monomer shown in formula I, so as to obtain a ternary conjugated polymer; the obtained ternary conjugated polymer, a second solvent, a crosslinking agent and a second catalyst are blended to form a film, and annealing is carried out to obtain the conjugated polymer thin film. The conjugated polymer thin film can be used as a light absorption layer to prepare an organic electronic device. The conjugated polymer thin film obtained by the method has significantly improved mechanical performance on the basis of ensuring photoelectric performance; the in-situ crosslinking strategy is adopted, solution processing performance is ensured, the operation is simple, the controllability of the polymer structure is high, and batch repeatability is high.

The application discloses a tannin acid-based epoxy resin and anticorrosive paint and relates to the technical field of paint. The tannin acid and the epoxy resin are combined through chemical reaction to generate a novel tannin acid-based epoxy resin. The tannin acid-based epoxy resin retains the function of generating chelate with iron rust, meanwhile, multiple epoxy structures in the structure generate thermosetting high-density crosslinked polymer structures after curing with a curing agent, the compactness of the paint film is greatly improved, the further corrosion of the corrosion medium is hindered, and the long-term effectiveness of the low-surface-treatment anticorrosive paint is ensured. Experimental results show that the adhesion of the tannin acid-based epoxy resin to the anticorrosive paint and the base material exceeds 13 MPa, and the neutral salt spray test reaches 4500 hours.

The application discloses a bisphenol A type haloketone monomer, a polyaryletherketone resin and a preparation method and application thereof. The polyaryletherketone resin is a linear polymer composed of structural unit 1 or a polymer linearly and randomly arranged by structural unit 1 and structural unit 2: -R1-A-, structural unit 1; -R2-A-, structural unit 2; wherein A is 1'4-benzenedioxy, 1'3-benzenedioxy or 4'4-biphenyldioxy. The polyaryletherketone resin prepared by using the bisphenol A type haloketone monomer has better mechanical properties, and also has better thermal stability and crystallinity.

Disclosed is a method for the enhancement of the transduction of a target cells by a viral vector using a cationic block-copolymer introduced as an additive alone or formulated with nanoparticles. The method includes a step of contacting a target cells with viruses and a cationic block co-polymer. The structure of this additive incorporates both hydrophilic and hydrophobic regions which represents different areas in the backbone of the polymer. This polymeric construction is ended by cationic chemical functions which contribute to further enhance the viral transduction. Also disclosed are new cationic poloxamers that can be used in the disclosed method. Furthermore, another embodiment is the colloidal stabilization of iron-based nanoparticles using these polymers and their use in increasing transduction efficiency.

The application relates to the field of organic materials, and provides an organic compound, a polymer, ink and an electronic device. The organic compound has a structure as shown in formula 1. The organic compound is a low-molecular-weight cross-linkable compound. In the preparation of a light-emitting device, cross-linking groups on the molecules of the compound can be cross-linked in situ, so that a network polymer structure resistant to solvents is formed.

The present disclosure pertains to recyclable multilayered polymeric structures comprising a number N of layers. Said recyclable multilayered polymeric structures comprise an outer surface layer N1, an inner surface layer N2, and optionally one or more layers between N1 and N2. Said recyclable multilayered polymeric structures comprise at least two different layers. The outer surface layer N1 is a barrier layer comprising a first polymer P1, P1 is polyethylene-based polymer with an ethylene content of at least about 50 mol% functionalized with polar groups and having an oxygen transmission rate (OTR) below 30 cc•20µm / m2•atm•day; a melting temperature above 160°C; a moisture resistance characterized by a water vapor transmission rate (WVTR) of less than 2 g•mm / m2•atm•day; and a density below 1.10 g / cm3. Said recyclable multilayered polymeric structures are for use in packaging applications, such as food packaging, building liners, geomembranes, pipes or containers for liquids.

A method for manufacturing of porous polymer structures, in particular membranes, the method comprising the steps of providing a mixture of one or more polymers and one or more salt nano- and / or microparticles, primary shaping said blend, and removing said one or more salt particles, wherein at least part of the one or more salt nano- and / or microparticles is one or more solid acids, and whereby the ratio of polymer-to-particle is in the range of 3:1 to 1:10 by weight. Also provided are mixtures suitable to obtain such porous polymer structures, porous polymer structures as described herein, shaped articles containing such structures, and the use of such porous polymer structures, shaped articles and mixtures.

The application relates to the technical field of film materials, and discloses a kind of tear-resistant and impact-resistant CPP film and a preparation method thereof.The CPP film is prepared by mixing, extruding and cooling and shaping processes using polypropylene as a base material and maleic anhydride grafted polypropylene and functional fiber additives as auxiliary materials.The functional fiber additives are prepared by modifying dendritic macromolecules on the surface of bamboo fibers.The macromolecules can form an interwoven network structure with polypropylene molecular chains, and the bamboo fibers can exist in the CPP film in the form of a crosslinked core.On the one hand, the bamboo fibers can be efficiently utilized to enhance the tear resistance of the CPP film by pulling and stretching, and on the other hand, the crosslinked network structure can effectively improve the density of the CPP film, and the macromolecule structure also contains a rigid fluorene ring, which can make the crosslinked network molecular chain more stable, thereby effectively improving the impact resistance of the CPP film.

The present invention relates to a UV-curing nanoimprint-based selective deposition process method for improving the metal transfer rate on a polymer pattern, wherein a chemical bond is formed between a UV-curing resin and a metal thin film using metal halogenation to efficiently perform selective deposition of a metal on a polymer structure. The method comprises the steps of: manufacturing an intaglio mold for fabricating a plasmonic device having a positive pattern; depositing a metal thin film on the mold; applying a chemical reaction control material on the metal thin film; supplying light energy greater than the atomic bond-dissociation energy to the chemical reaction control material through a UV exposure process; removing the metal thin film; and performing a UV-curing imprint for the formation of a polymer nano pattern and the selective deposition of a metal.

The invention discloses an electric heating material with high adhesive force to foamed polyurethane and preparation and application thereof, the material is of a network polymer structure, an organic monomer molecule A and a catalyst are used as film-forming and insulating materials, and after curing is completed, the material has good adhesive force to a foamed polyurethane base material. The invention also discloses a preparation method and application of the compound. The electric heating material precursor is printed on a foaming polyurethane base material in a silk-screen printing mode, an electric heating element with high adhesive force can be obtained, and the electric heating material precursor is suitable for being used as an electric heating element of bedding articles, aerospace seats and other products.

This invention relates to the technical field of polymers, and more particularly to an impact-resistant poly(4-methyl-1-pentene) and its preparation method. A method for preparing impact-resistant poly(4-methyl-1-pentene) includes the following steps: first, a polymeric raw material comprising 4-methyl-1-pentene and an α,ω-nonconjugated diene undergoes polymerization reaction 1; then, an α-olefin is added and polymerization reaction 2 is carried out; the mixture is washed and dried to obtain the final product. The insertion of the α-olefin disrupts the crystallinity of part of the polymer, thereby controlling the polymer's crystallinity and imparting impact resistance. The introduction of the α,ω-nonconjugated diene forms a partially cross-linked network in the polymer structure, preventing excessive loss of other mechanical properties of the polymer. The combination of these two monomers improves the impact resistance of the PMP polymer while maintaining its excellent properties.

A method for producing a microporous polymer structure (1) having at least one porous region (2) and a substantially non-porous support structure (3) configured to support the at least one porous region (2), the method comprising: i) providing a substrate (4); ii) providing a first composition (5), the first composition (5) comprising a first polymer (5a), at least one solvent (5b) for the first polymer, and one or both of nanoparticles and microparticles (5c) dispersed within the first composition (5); iii) providing a second composition (6) comprising a second polymer (6a); and iv) applying the first composition (5) to a surface (4a) of the substrate (4) to form a first coating layer (7). v) carrying out phase separation in the first coating layer (7) to obtain a phase-separated coating layer (7'); vi) applying a second composition (6) onto the same surface (4a) of the substrate (4) and / or the phase-separated first coating layer (7'); vii) physically hardening or curing the second composition (6) applied in step vi) to obtain a non-porous support structure (3); and viii) dissolving the nanoparticles and / or microparticles (5c) with a washing solvent to obtain a porous region (2), wherein the non-porous support structure and the porous region are disposed on the substrate to form a common interface, and the phase separation in the first coating layer (7) in step v) is carried out from one side of the first coating layer (7).

The invention relates to the technical field of polyester fiber synthesis, in particular to a high-elastic polyester fiber and a preparation method and application thereof. The problem that in the prior art, the mechanical property and the elastic property of polyester fibers cannot be considered at the same time is solved. According to the fiber obtained by the invention, a sheath layer is obtained by combining isophthalic acid, polycaprolactone glycol, modified nano silicon dioxide and ultra-high molecular weight polysiloxane; the core layer is prepared from modified nano silicon dioxide, trimethylolpropane triacrylate and hydroquinone; the structural uniformity of a polymer is controlled through step-by-step esterification and polycondensation, a stable fiber structure is formed through eccentric core-sheath spinning, trimethylolpropane triacrylate is initiated to be crosslinked by combining electron beam irradiation, and heat treatment is performed to prepare the composite material. The obtained polyester fiber has high tensile strength and high elongation at break, shows excellent elastic recovery rate, and is suitable for fillers of home textile products, clothes and furniture.

The invention relates to the technical field of building material admixtures, and particularly discloses a non-air-entraining type anti-freezing agent, a preparation method thereof and application of the non-air-entraining type anti-freezing agent in a cement-based material. The polymer structure of the non-air-entraining type anti-freezing agent is an X-Y-X type copolymer, X is a polyvinyl alcohol (PVA) block, and Y is a polyethylene glycol (PEG) block; the specific structure of the compound can be shown in the following structural formula. In the structural formula, R is-O-or-CH2O-; r1 and R2 represent terminal groups of the copolymer and are both considered as-H or-OH; n represents the number of ethylene glycol repetitive units in the central PEG block, and n is equal to 100-1000; the invention aims at solving the technical defects that the existing cement-based material antifreeze agent mainly depends on introduction of a large number of pores to improve the freezing resistance but obviously sacrifices the mechanical strength, or introduction of harmful ions such as chlorides and the like causes corrosion of steel bars.

The invention discloses a tri-acceptor polymer based on diisoindigo and a preparation method and application thereof, and belongs to the technical field of organic semiconductor materials. The invention relates to a tri-acceptor polymer based on diisoindigo. In the structure of the tri-acceptor polymer, R1 and R2 are selected from at least one of C5-C80 straight-chain or branched-chain alkyl groups; x, Y and Z in the structure are selected from fluorine or hydrogen; and the polymerization degree n of the tri-acceptor polymer is 5-200. The tri-acceptor polymer is prepared through a Stille coupling reaction, an aldol condensation reaction and a Stille copolymerization reaction in sequence, the synthesis route is simple and easy to implement, the number of synthesis steps is small, and the method is suitable for large-scale synthesis. A field effect transistor taking the tri-acceptor polymer as an organic semiconductor layer has high bipolar transmission property, the highest electron mobility can reach 4.08 cm < 2 > V <-1 > s <-1 >, the highest hole mobility can reach 5.51 cm < 2 > V <-1 > s <-1 >, and the tri-acceptor polymer has a good application prospect in organic field effect devices.

The application discloses a design method and device for carbon dioxide thickening polymer structure. The method comprises the following steps: obtaining training input data generated by high-throughput molecular dynamics simulation and completing preprocessing; constructing a double initial model of basic performance and accurate performance, and obtaining a corresponding prediction model through training and optimization; refining structure optimization design rules through explainability analysis of the accurate performance prediction model; combining the structure optimization design rules with polymer structure chemical grammar rules and high-performance structure features to generate candidate polymer structures; completing reinforcement learning iteration optimization through the basic performance prediction model preliminary screening, a multi-objective reward function and the accurate performance prediction model, and obtaining high-potential candidate structures; and obtaining a target carbon dioxide thickening polymer structure. The application realizes high-throughput screening and intelligent design of carbon dioxide thickening polymer, and improves design efficiency and performance prediction accuracy.

The invention relates to a porous arylamine polymer stabilizer (POP-EDA) suitable for nitrocotton, which is prepared from a node unit 1, 3, 5-tribromobenzene and a connecting unit ethylenediamine. As chain fatty amine, ethylenediamine not only can introduce NOX absorption active sites, but also can construct a non-conjugated spatial network arylamine polymer structure. Compared with a conventional stabilizing agent, the polymer has high thermal stability and a relatively high specific surface area, not only has efficient physical adsorption capacity on nitrogen oxides generated by decomposition of nitrocotton, but also can stably and chemically fix the nitrogen oxides, so that autocatalytic decomposition of the nitrocotton is inhibited, and the service life of the nitrocotton can be effectively prolonged. The problems of poor thermal stability, few reaction active sites, generation of by-product gas, poor stabilizing effect and the like of the existing small-molecule stabilizing agent are solved, and the stability of the nitrate-based energetic material can be widely enhanced.

The application belongs to the technical field of membrane preparation and application, and discloses a method for preparing a benzoxazole-containing polyimide carbon molecular membrane for ethylene / ethane separation. The method introduces a novel diamine monomer containing a benzoxazole structure, and polymerizes to obtain a polyimide polymer precursor containing a benzoxazole structure, thereby avoiding the limited conversion rate of thermal rearrangement to generate a benzoxazole structure, and the fact that the thermal rearrangement process causes the molecular chain to break, and further carbonization treatment causes the polymer structure to collapse and the molecular chain to be densely packed. The benzoxazole-containing polyimide carbon molecular sieve membrane has good permeability due to the ordered arrangement of the oxazole ring and the highly twisted rigid structure in the polymer main chain, and in addition, the good planar orientation and intramolecular Π-Π stacking of the polymer are conducive to the selectivity of ethylene / ethane.

Described herein are composite battery electrode structures and methods of forming such structures. Composite battery electrode structures comprise active electrode material structures and polymer structures such that at least a portion of the polymer structures at least partially protrudes into some of the high capacity structures. Some of these polymer structures may be fully enclosed by the active electrode material structures. Other polymer structures may only partially extend inside the active electrode material structures. Furthermore, additional polymer structures may be bound to the external surface of the active electrode material structures. Composite battery electrode structures may be formed using low-temperature deposition techniques, such as solvent-thermal synthesis, direct chemical reduction, and electrochemical deposition. More specifically, composite battery electrode structures may be formed from a solution comprising active electrode material precursors and polymer precursors, e.g., dissolved polymers, monomers, and / or conductive polymers electrically coupled to the working electrodes.

The invention discloses a PBAE polymer screening method based on a sorting model. The method comprises the following steps: constructing a data set, grouping according to literatures and experimental units based on multi-source PBAE polymer experimental data, selecting an optimal sample from groups with sufficient data as a verification set, and taking the rest as a training set; feature extraction: automatically assembling a polymer structure according to the molecular structure information of the polymer and extracting molecular features and experimental condition features; model training: inputting training set features and grouping labels into a sorting model based on list-level learning, and adjusting and optimizing hyper-parameters by using a verification set; and new polymer screening: extracting features from the new combination, inputting the features into the trained sorting model, and screening candidate polymers according to the predicted score. According to the method, absolute performance prediction is converted into intra-group relative sorting, the heterogeneity problem caused by inconsistency of units and conditions of multi-source data is solved, effective integration of heterogeneous data is achieved, the training data scale is expanded, and the prediction precision and generalization ability of the model are improved.

The invention discloses a mechanochromic molecule based on crystal violet lactam, a bulk polymer and application of the mechanochromic molecule and the bulk polymer, a force sensitive unit and an introduction process of a polymerizable functional group are organically combined, the synthesis steps are effectively simplified, the preparation cost is reduced, and a new thought is provided for design of a controllable and specific mechanochromic material. According to the invention, accurate regulation and control of color and force-induced discoloration behaviors are realized through molecular structure optimization and polymer structure design. The molecule has the advantages of simple and convenient synthesis steps, cheap raw materials and low cost, can realize large-scale preparation, and shows a stable and remarkable force-induced discoloration effect in a polymer material during mechanical compression or stretching, so that the molecule has a wide application prospect.