38 results about "Photosensitive polymer" patented technology

The invention discloses a preparation method and antibacterial application of a naphthothiadiazolyl photosensitizer, and belongs to the technical field of biomedical antibacterial materials. The naphthothiadiazole-based photosensitizer provided by the invention overcomes the problem that the existing commercial photosensitizer gathers and quenches the active oxygen efficiency, and meanwhile, the antibacterial photosensitive polymer prepared based on the novel naphthothiadiazole-based photosensitizer has the unique advantages that the structure is stable, photosensitizer micromolecules are not easy to leak and the antibacterial effect is long-acting; the construction of the antibacterial polymer coating on the surface of the medical instrument in the future has important clinical application potential. The naphthothiadiazolyl photosensitizer provided by the invention has good photodynamic killing performance on drug-resistant bacteria MRSA (Methicillin Resistant Staphylococcus Aureus).

This invention provides a photosensitive conductive resin composition and its application. The photosensitive conductive resin composition comprises, by weight, the following components: 20-60 parts of a photosensitive polymer, 10-20 parts of an epoxy resin, 5-20 parts of an acrylate monomer, 0.5-5 parts of a photoinitiator, 20-60 parts of a conductive carbon filler, and 1-10 parts of an additive; the volume resistivity of the conductive carbon filler is ≤0.5 Ω·m. Through the screening and synergistic compounding of specific components, the photosensitive conductive film prepared from this resin composition exhibits excellent conductivity and peel strength, high photosensitivity resolution, and excellent developability, thus meeting the application requirements of photosensitive conductive films.

Holographic photopolymer materials, holographic photosensitive films, holographic optical elements, and display devices are provided. The holographic photopolymer material comprises a polymer matrix, a photopolymerizable monomer, and a photosensitizer. The refractive index of the photopolymerizable monomer is greater than that of the polymer matrix. The molecular structure of the polymer matrix includes a linear structure, the branched chains of the polymer matrix include activating groups, and / or the molecular structure of the polymer matrix includes a crosslinked structure. Because polymer matrices with a crosslinked molecular structure have a high glass transition temperature, holographic photopolymer materials have good heat resistance. Because holographic photopolymer materials with a linear molecular structure include activating groups that can form crosslinked structures, optical elements made from holographic photopolymer materials can have crosslinked structures, i.e., optical elements can have good heat resistance. Holographic photopolymer materials have good heat resistance, or optical elements made from holographic photopolymer materials can have good heat resistance.

Photosensitive polymers and their use in photoresists for photolithographic processes are disclosed. The polymers are copolymers, with at least one monomer that includes pendant polycyclic aromatic groups and a second monomer that includes an acidic leaving group (ALG). The polymers have high resistance to etching and high development contrast.

The invention discloses a ship-borne anti-corrosion and wave-absorbing integrated super-surface elastomer and further discloses a preparation method of the elastomer, and the preparation method comprises the following steps: S1, preparing an inner protection matrix by using an anti-corrosion filler, an antioxidant, polyether amine and isocyanate; s2, preparing conductive ink by using dielectric loss filler, magnetic loss filler, a photosensitive polymer, a photoinitiator, a reactive diluent and a dispersing agent, and coating the conductive ink on the surface of the inner protection substrate in a patterned manner to form a super-surface wave-absorbing layer; s3, preparing an outer hydrophobic layer outside the metasurface wave-absorbing layer to obtain a metasurface elastomer; and S4, one side of the inner protection base body of the super-surface elastomer is attached to the outer surface of the ship electronic device, and anti-corrosion and wave-absorbing integrated packaging is achieved. The super-surface elastomer has the functions of corrosion prevention and wave absorption, is suitable for packaging and electromagnetic protection of devices such as ship-borne communication nodes and high-frequency electronic modules, and can remarkably improve the reliability and prolong the service life of the devices in a complex marine environment.

This application relates to a conductive polymer layer located on an electrostatic chuck. The conductive polymer layer comprises a conductive polymer and a photosensitive polymer. The conductivity of the conductive polymer facilitates charge dissipation through the conductive polymer layer, while the photosensitivity of the photosensitive polymer allows the surface of the conductive polymer layer to be optically patterned. The degree of conductivity and photosensitivity of the conductive polymer layer can be adjusted by varying the relative amounts of the conductive polymer and the photosensitive polymer.

This application relates to the field of optical device technology, and provides a method, device and equipment for preparing a polymer holographic optical device. The method includes: mixing a photosensitive polymer holographic material with preset nanoparticles to obtain a mixed material; the preset nanoparticles have photosensitive active groups; covering the mixed material onto a substrate; subjecting the mixed material on the substrate to a thermosetting treatment; and irradiating the thermosetting mixed material with coherent light to obtain a polymer holographic optical device, thereby improving the refractive index modulation of the polymer holographic optical device.

A laminated pane includes first and second panes, a layer stack arranged therebetween including a first thermoplastic intermediate layer, a separating layer, a photopolymer layer with at least one holographic element, a carrier layer, and a second thermoplastic intermediate layer, wherein the photopolymer layer has a thickness of 5 μm to 50 μm, the carrier layer contains polyethylene terephthalate (PET), polyethylene (PE), polymethyl methacrylate (PMMA), polycarbonate (PC), polyamide (PA), polyvinyl chloride (PVC), and / or cellulose triacetate (TAC) and has a thickness of 20 μm to 100 μm, wherein the carrier layer is arranged directly adjacent the photopolymer layer, and the separating layer contains polyethylene (PE), polyvinyl chloride (PVC), and / or polymethyl methacrylate (PMMA) and has a thickness of 10 μm to 300 μm.

The invention discloses a fabric hybrid electronic integrated system with a stretchable interface. The fabric hybrid electronic integrated system comprises a laser modified fabric substrate, a rigid chip, a printed electrode and a printed interconnection wire. The laser modified fabric is obtained by irradiating a photosensitive polymer composite fabric with laser, can be designed in a customized manner and manufactured in one step by regulating and controlling laser parameters, and simultaneously realizes three different effects: (1) the interface bonding of a printed layer is enhanced; (2) the cross-layer short circuit of the interconnected wires is inhibited; and (3) strain isolation among the rigid chip, the elastic fabric and the interconnected wires. The mechanically enhanced and surface modified fabric realizes heterogeneous integration of a rigid chip and a circuit on the fabric, has interface stretchability, and has potential in the fields of wearable health management and human-computer interaction.

The application provides an ultrasonic response piezoelectric ionic hydrogel and application thereof, and the hydrogel is formed by cross-linking and solidification of a precursor solution under ultraviolet irradiation; components of the precursor solution include a photosensitive polymer, an ionic polymer, a photoinitiator and a solvent; the photosensitive polymer includes any one or a combination of at least two of polyether F127 diacrylate, polyhydroxyethyl methacrylate, polyethylene glycol dimethyl acrylate, methacrylated gelatin or methacrylated collagen; and the ionic polymer includes any one or a combination of at least two of epsilon-polylysine, polyethyleneimine hydrochloride, polyallylamine hydrochloride, polyquaternary ammonium salt-10 or cationic guar gum. The application uses ultrasonic waves as an external remote driving signal to non-invasively and painlessly activate the piezoelectric ionic effect of the hydrogel, generate detectable periodic voltage and current signals in the hydrogel, and has excellent treatment effect on acne and infected wound repair.

The invention relates to a photoresponsive self-initiated cross-linked hydrogel, and raw materials, a preparation method and application thereof. The method comprises the following steps: carrying out amidation reaction on a carboxyl-containing natural polymer and aminobenzophenone to obtain the photoresponsive self-initiated cross-linked hydrogel; or the amino-containing natural polymer and carboxyl benzophenone are subjected to an amidation reaction to obtain the amino-containing natural polymer. The photoresponsive self-initiation cross-linked polymer can be used as a macromolecular photoinitiator of a photosensitive polymer, and an aqueous solution of a single polymer of the photoresponsive self-initiation cross-linked polymer can be cross-linked under the irradiation of light with specific wavelength to form hydrogel, so that the photoinitiator can be effectively prevented from generating toxicity due to permeation.

The application provides a cyclohexanone photosensitizer shown in a formula I, a preparation method of the cyclohexanone photosensitizer, a mixed photosensitizer containing the cyclohexanone photosensitizer, a photopolymerization composition and a photopolymer film, wherein the cyclohexanone photosensitizer has the structural formula shown in the formula I, wherein R1 and R2 are each independently selected from hydrogen or C1-C4 alkyl. The cyclohexanone photosensitizer provided by the application replaces a benzene ring with thiophene, shows excellent absorption performance in a green laser wavelength range, is well matched with a 532nm laser, and provides more candidate photosensitizers for the development of green photosensitive polymer films.

Disclosed are a photosensitive polymer including a repeating unit of Chemical Formula 1 or Chemical Formula 2 derived from a vinyl heteroaromatic compound and a resist composition including the same.In Chemical Formula 1 or 2, R1 and R2 are hydrogen or a methyl group, X is a carbon, sulfur, or a nitrogen atom, and n is 1 or 2.

A photopolymer composition for hologram formation, comprising: a polymer matrix comprising a siloxane-based polymer and a (meth)acrylate polymer containing one or more reactive functional groups in the side chains, a holographic recording method, and an optical element are provided.

The invention discloses a method for manufacturing a photosensitive polymer dielectric layer on a patterned substrate, which comprises the following steps of: cleaning the surface of the substrate by using plasma, and baking the cleaned substrate; coating a photosensitive polymer medium adhesive by adopting a dynamic adhesive dripping method, starting to drip the photosensitive polymer medium adhesive at a constant speed at a high rotating speed of the substrate, continuously dripping the adhesive until the substrate rotates at a low rotating speed, keeping adhesive uniformizing at a low rotating speed until the adhesive uniformizing is finished after the adhesive dripping is stopped, and performing soft baking on the coated substrate; performing alignment exposure on the substrate by using ultraviolet light matched with a patterned mask; developing the substrate by using a developing solution to obtain a graphical medium glue layer; and curing the graphical dielectric glue layer in an anaerobic high-temperature environment to obtain the graphical dielectric layer. According to the invention, the coverage problem of traditional static coating can be solved, and the manufacturing of a bubble-free, high-uniformity and high-adhesion polymer dielectric layer is realized.

The invention belongs to the technical field of intelligent sensing materials, and particularly relates to an electric sensing coating, a coating, a preparation method, a curing method and application. The invention relates to an electric sensing coating. The coating comprises a matrix and a functional material dispersed in the matrix, the functional material comprises nematic phase liquid crystals, a crystal violet lactone-bisphenol A complex and a plasticizer; the matrix comprises a photosensitive polymer and a photoinitiator; phase separation can occur in the ultraviolet curing process of the electric sensing coating, so that the functional material forms a micron-sized confinement block in the matrix.

Photosensitive polymers and their use in photoresists for photolithographic processes are disclosed. The polymers are copolymers, with at least one monomer that includes pendant polycyclic aromatic groups and a second monomer that includes an acidic leaving group (ALG). The polymers have high resistance to etching and high development contrast.

A process for manufacture of a flexographic printing plate pursuant to a plurality of process steps, including at least an imaging step, a curing step, a washing or other non-cured-polymer-removal step, each step performed by a processing machine having at least one variable operating parameter. The process includes providing a smart plate tracking (SPT) code on each flexographic printing plate, storing in computer memory instructions readable by a computer processor information corresponding to the at least one variable operating parameter for each of the processing machines in association with the SPT code, and in response to receiving the SPT code as an input from a user or machine interface corresponding to one of the processing machines, the computer processor returning instructions corresponding to one of the processing machines.

A biosensor comprising an enzyme electrode that contains a conductive layer and a reagent layer adjacent to the conductive layer, wherein the conducive layer contains a mediator, and the reagent layer contains an amino acid oxidase and a cured product of a photosensitive polymer.

The present disclosure relates to a novel holographic photopolymer and method for making the same. In some embodiments, the holographic photopolymer may comprise a polyurethane matrix, a writing monomer, and a dye system. In some embodiments, the polyurethane matrix may comprise a mesh size and a storage modulus. In some embodiments, the polyurethane matrix may comprise a liquid additive. In some embodiments, the storage modulus of the polyurethane matrix increases from about 10² Pa to about 5x10⁵ Pa as the mesh size decreases. In some embodiments, an augmented reality / virtual reality (AR / VR) apparatus comprising the holographic photopolymer is described.

The application provides a transient self-destructing integrated circuit device, comprising a substrate, a package shell buckled on the substrate, a cavity formed in the package shell, a groove with a top opening arranged on a side of the package shell away from the substrate, a porous partition plate arranged in the cavity and butting against a bottom of the groove to close the bottom of the groove, a photosensitive polymer arranged in the groove for generating a corrosive solution under light, a sensor arranged between the substrate and the porous partition plate, and a light-transmitting cover plate arranged at the top opening of the groove for closing the top opening so that light can enter the groove through the light-transmitting cover plate. The application has the advantages of simple structure, low cost and controllable self-destruction according to external light.

The application discloses an ammonia pollution inhibiting additive for thick film photoresist and a preparation method thereof, and further provides a photoresist composition, a preparation method and application thereof. The raw material of the photoresist composition comprises a random copolymer, a photoacid generator, a photosensitive polymer and an organic solvent. The random copolymer is a random copolymer with a weight average molecular weight of 1000-50000 and composed of structural units represented by general formula Ia, Ib and Ic, wherein the molar percentage of the structural units Ia, Ib and Ic is 0≤Ia<90%, 0≤Ib<90% and 0<Ic<50%. The photoresist composition provided by the application can prevent the problem of distortion of photoetching patterns caused by ammonia and amine pollution in the atmosphere in I-line and KrF photoetching processes.

The invention belongs to the technical field of biomedical materials and drug delivery, and particularly relates to a multispectral response intelligent dressing and a preparation method and in-situ production equipment thereof. Aiming at the problems that in the prior art, a hydrogel drug-loaded dressing can only be passively administered, and drug delivery and intelligent drug delivery in specific time and space cannot be realized, firstly, ultraviolet light is utilized to induce a photosensitive polymer to generate a cross-linking reaction, so that a stable three-dimensional network structure is formed to contain an exosome; therefore, local retention of the exosome at the wound part is realized, and the cured gel has high plasticity, can adapt to different body surface tissue environments, and provides a platform for precise treatment; meanwhile, the photothermal conversion material is combined with the drug carrier, the release behavior of the exosome is controlled through near-infrared illumination, and time-space controllable drug delivery is achieved. Therefore, the multispectral response intelligent dressing disclosed by the invention can significantly improve the residence time and the action efficiency of the exosome on the wound surface, and is expected to promote the conversion of stem cell exosome therapy to clinical application.

An acrylate based photopolymer with high yellowing resistance, excellent photo sensitivity, high toughness, and high glass transition temperature, methods of preparation and used thereof, and solders comprising the same.

A self-repairing optical waveguide made of a composite polymer of a photopolymer and a self-repairing polymer, a method for manufacturing the same, and a method for reconnecting the self-repairing optical waveguide are provided. [Solution] The above-mentioned problem is solved by a self-healing optical waveguide formed between opposing optical waveguides and a composite polymer, wherein the composite polymer comprises a copolymer or mixed polymer of a photopolymer and a self-healing polymer, and the self-healing polymer is a polymer of monomers having a host group and a guest group and bonding through host-guest interaction. In this case, it is preferable that the photopolymer is a polymer of one or more photopolymerizable monomers, and the self-healing polymer is a polymer of a composition having a host group-containing polymerizable monomer and a guest group-containing polymerizable monomer.

The application relates to the technical field of photosensitive polymer synthesis, and discloses a photosensitive monomer, a photosensitive polyurethane and a preparation method and application thereof. The photosensitive monomer is prepared by reacting 5-hydroxy-2-nitrobenzaldehyde with a compound M and a compound N capable of accepting external electrons in a first polar solvent. The photosensitive monomer has high crosslinking activity, can be combined with isocyanate to synthesize polyurethane holographic polymer materials, and can endow the polyurethane holographic polymer materials with physical crosslinking photoisomerization performance. The pyridine structure generated under ultraviolet irradiation can not only form intermolecular hydrogen bonds with hydrogen-containing structures in the molecular chain to realize reversible crosslinking, but also can produce complexation with metal ions. The photosensitive monomer can widen the selection range of photosensitive monomers required for the production of holographic polymer materials, and effectively promote the development of holography. The photosensitive monomer has simple synthesis process, high yield, easy separation of products, high controllability, and can realize low-cost continuous production.

The application discloses a light-transmitting micro-electro-mechanical ultrasonic transducer and a preparation method thereof, and relates to the field of ultrasonic transducers. The method mainly comprises the following steps: depositing a common bottom electrode on a light-transmitting substrate; spin-coating a photosensitive polymer on the common bottom electrode and exposing and developing the same to form a photosensitive polymer light-transmitting substrate wafer with a cavity structure and a support structure; using a bonding machine and a wafer adhesion layer bonding technology, bonding and solidifying the photosensitive polymer light-transmitting substrate wafer and a silicon wafer with low-stress silicon nitride films deposited on both sides to obtain a bonded and solidified wafer; using a dry and wet etching method to remove the low-stress silicon nitride films on the outer surface of the bonded and solidified wafer and the silicon wafer, and retaining the low-stress silicon nitride films inside the bonded and solidified wafer; and depositing a common top electrode and a metal layer on the retained films, so that the obtained metal wires penetrate through the common top electrode. The application has the advantages of light-transmitting and not blocking the light path, and has a relatively large relative bandwidth.

The application discloses a kind of preparation flexible solid-state battery and method using light curing auxiliary hole plate printing, belong to zinc ion battery field;The battery includes positive electrode layer, negative electrode layer and solid electrolyte layer;Positive electrode layer includes raw material and mass fraction ratio is positive electrode active material 25~30%, electronic conductive agent 3~6%, photosensitive polymer network matrix 65~75%;Solid electrolyte layer includes raw material and mass fraction ratio is inorganic nano active filler 28~35%, photosensitive polymer network matrix 65~72%;Negative electrode layer is zinc metal sheet;Preparation method effectively combines light curing technology and hole plate printing technology, utilizes the principle of ultraviolet light initiation polymerization to make positive electrode and electrolyte ink solidification, without performing post-processing such as degreasing, sintering, save preparation time, reduce raw material waste, reduce preparation cost, preparation process energy saving and environmental protection and can realize large-scale batch production.

Techniques for optical waveguides with multiple layers in a stack arrangement are described herein. In an example, an optical waveguide system includes a waveguide substrate, a first holographic optical element, a second holographic optical element, and an optical de-coupling layer. The first holographic optical element includes a first photopolymer layer and excluding a first polymer substrate and the second holographic optical element includes a second photopolymer layer. The first photopolymer layer is attached to the waveguide substrate and to either the second holographic optical element or the optical de-coupling layer.

Stereolithography (SLA)-based 3D printing enables high-resolution microfabrication but faces challenges in multi-material integration and adaptive Z-layer control due to reliance on vats and mechanical stages. We introduce “In-situ 3D Polymerization” (IS-3DP), a novel method leveraging multiphasic laminar flow in a microfluidic channel to fabricate three-dimensional microstructures. By combining in-situ polymerization with an aqueous two-phase system (ATPS), IS-3DP dynamically controls layer thickness through flow rate adjustments, achieving resolutions below 200 μm. This approach eliminates vats, reducing material consumption by an order of magnitude, and enables rapid multi-material switching without complex printer modifications. Compatible with various light sources and photopolymers, IS-3DP offers versatile applications in bioprinting and microdevice manufacturing, with demonstrated layer-by-layer printing of 3D structures in a microfluidic environment.