22 results about "Polynorbornen" patented technology

The invention provides a novel polynorbornene anion exchange ionomer containing a polar functional group as well as a preparation method and application of the novel polynorbornene anion exchange ionomer. The polynorbornene has excellent thermal stability and chemical stability. Meanwhile, the AEI main chain of the polynorbornene has no aryl group, so that the adsorption influence caused by the aryl group is avoided. The synthesized addition polynorbornene AEI in the form of quaternary ammonium salt can be dissolved in a low-boiling-point solvent, and it is ensured that a membrane electrode can be prepared through a solvent casting method. Besides the solubility of the AEI, the addition polynorbornene-based AEI in the form of quaternary ammonium salt is modified by utilizing a thiol-ene click reaction, an anion exchange ionomer containing a polar functional group can be prepared, the interaction between the AEI and an electrolytic catalyst is improved, the reaction is simple and easy to operate, the universality is high, and the method is suitable for industrial production. And the current density in the AEMWE system containing the AEI can be effectively improved.

The present disclosure belongs to the technical field of catalyst preparation, and provides a polynorbornene / carbon black-cross-linked three-dimensional network-immobilized bimetallic copper / gold (PNBI / CB-Cu / Au) nanocatalyst, and a preparation method and use thereof. Metallic copper and gold both exist in a form of nanoparticles in the catalyst and are uniformly dispersed, and further enhancing a catalytic performance. Moreover, the carrier is a polynorbornene / carbon black-cross-linked three-dimensional network, and a relative content of free hydroxyl groups in the catalyst is controlled by changing a monomer ratio to adjust a hydrophilic-lipophilic balance value of the catalyst, adapting to a reaction of an organic phase with an aqueous phase. Furthermore, the catalyst is insoluble in conventional solvents, and has a desirable effect in immobilizing nanoscale metallic copper, prolonging a service life of the catalyst.

The application belongs to the technical field of fuel cell application, and discloses a polynorbornene-based anion exchange ionomer with double-domain coupled ion channels, a preparation method and application thereof. The polynorbornene-based anion exchange ionomer simultaneously constructs an ion domain rich in cation groups and a synergistic functional domain rich in oxygen-containing functional groups at a molecular scale, the two types of domains are coupled with each other in the material and form a continuous double-domain ion transmission network, so that the ionomer can still maintain a stable and continuous hydrogen and oxygen ion transmission channel under the conditions of a thin layer state of a cathode catalyst layer and limited hydration, and effectively improves the ion transmission connectivity and catalyst utilization efficiency of the catalyst layer interface. The ionomer is suitable for being used as an ion-conducting bonding material of a cathode of an alkaline membrane fuel cell, can improve the oxygen reduction reaction performance of the cathode, and provides a new material and structural design idea for a low-noble metal loading and high-power density fuel cell electrode structure design.

The disclosure provides certain porous membranes comprised of cyclic polyolefin polymers, such as poly(norbornene)s. In one embodiment, a poly(norbornene) polymer is dissolved in tetrahydrofuran, cast into a film and subjected to solvent induced phase separation to provide a porous filter membrane (i.e., film).

This invention provides a temporary bonding adhesive, its preparation method, and its application. The raw materials for preparing the temporary bonding adhesive include the following components: modified polynorbornene resin, SEBS resin, antioxidant, and solvent. The raw materials for preparing the modified polynorbornene resin include: norbornene or its derivatives, maleimide derivatives, olefins or their derivatives, and an initiator. The temporary bonding adhesive provided by this invention, based on modified polynorbornene resin and low-modulus elastomer resin (SEBS resin), not only possesses excellent film-forming properties but also exhibits high modulus at high temperatures, ensuring strong adhesion between the chip and the temporary bonding adhesive.

The present invention relates to a photosensitive composition containing copolymers and terpolymers of PFAS-free polynorbornene, i.e., PNB, in combination with specific additives, which can be used to form microelectronic and / or optoelectronic devices and components thereof, and more particularly, to a composition which can be used to form microelectronic and / or optoelectronic devices and components thereof. The present invention relates to a composition containing PNB that does not contain PFAS, a specific polyfunctional cross-linking agent, and two or more phenolic compounds that are resistant to thermal oxidation chain degradation and exhibit improved mechanical properties.

The application discloses an addition polynorbornene-based anion exchange ionomer, a preparation method and application thereof, and belongs to the technical field of ion exchange membranes. The application can improve the dispersibility of a raw material by using simple water as a solvent and adding water-soluble amine in water while completing the quaternization of the water-insoluble polymer raw material, and can ensure that the hydrophilic polymer after quaternization can be dissolved in an aqueous solution containing amine. The excess amine raw material and solvent water can be easily removed through a reduced pressure distillation treatment. The quaternization degree of the addition polynorbornene-based AEI in the form of a quaternary ammonium salt synthesized by the application is more than 90%, and the addition polynorbornene-based AEI is soluble in a low-boiling-point solvent, so that the solvent casting method for preparing a membrane electrode can be ensured. The synthesis method of the addition polynorbornene-based anion exchange ionomer is simple and easy to operate, does not use an organic solvent, and does not need complex sedimentation and centrifugation operations, and is suitable for large-scale production.

A multiblock, cationic-functionalized norbornene copolymer is formed by a process including performing a vinyl addition polymerization in the presence of a metal catalyst of a first norbornene monomer substituted with a first alkyl group and a second norbornene monomer substituted with a second alkyl group by adding a predetermined amount of the first norbornene monomer and a predetermined amount of the second norbornene monomer sequentially to the reaction to form blocks of an intermediate norbornene multiblock copolymer. The second alkyl group includes a substituent which undergoes a reaction with a precursor for a cationic group having a volume less than 0.25 cm3 / mol. The process further includes reacting the precursor for the cationic group with the intermediate norbornene multiblock copolymer to form the multiblock, cationic-functionalized norborene copolymer.

The application provides a polynorbornene, a modified polynorbornene and a preparation method thereof, and belongs to the technical field of polymer materials. The polynorbornene is a random copolymer of norbornene, ethylidenenorbornene and phenylnorbornene. The polynorbornene provided by the application has a high molecular weight and a narrow molecular weight distribution, different functional groups can be introduced at different side chain positions of the same molecular chain, and the copolymer can be endowed with more new functions.

The invention discloses a polynorbornene-based composite anion exchange membrane and a preparation method and application thereof, the composite anion exchange membrane comprises polysulfone resin and ionic polynorbornene, or the composite anion exchange membrane comprises polybenzimidazole resin and ionic polynorbornene, or the composite anion exchange membrane comprises polybenzimidazole resin and ionic polynorbornene, or the composite anion exchange membrane comprises polybenzimidazole resin and ionic polynorbornene. The composite material comprises polysulfone resin, polybenzimidazole resin and ionic polynorbornene. According to the polynorbornene-based composite anion exchange membrane disclosed by the invention, the polysulfone resin or the polybenzimidazole resin is introduced into the ionic polynorbornene, so that the mechanical strength of the anion exchange membrane in a wet membrane state can be remarkably improved, the polynorbornene-based composite anion exchange membrane can be used for assembling a more stable water electrolysis device, and the durability is improved.

There is provided a polymeric nanoparticle comprising: a hydrophobic synthetic polymer core; and a hydrophilic bioactive shell, wherein the hydrophobic synthetic polymer core and hydrophilic bioactive shell are parts of a bioactive synthetic polymer with a poly(norbornene-dicarboximide) backbone having one or more repeating units selected from the group consisting of general formula (1), (2) and (3). Also provided are a composition comprising bioactive synthetic polymeric nanoparticles, bioactive synthetic polymers, macromolecules for preparing said bioactive synthetic polymers, related methods and uses.

The application relates to the fields of dielectric materials and energy storage materials, and discloses a high-temperature dielectric polymer as well as a preparation method and application thereof, the preparation method comprising the following steps: subjecting 5-norbornene-2,3-diformamide to a reduction reaction through lithium aluminum hydride to obtain a 5-norbornene-pyrrolidine intermediate; placing the intermediate and p-toluenesulfonyl chloride in a chloroform solution, and adding triethylamine dropwise to react; obtaining norbornene pyrrolidine benzene sulfone monomers; subjecting the monomers to ring-opening metathesis polymerization reaction through Grubbs catalyst to obtain poly-norbornene pyrrolidine benzene sulfone; placing the poly-norbornene pyrrolidine benzene sulfone and p-methylbenzenesulfonyl hydrazide in a toluene solution, and subjecting to hydrogenation reaction to obtain the target polymer. The polymer of the application only needs to be applied with a low electric field intensity of 350 MV / m at 150 DEG C, and the electric polarization energy storage density (charge and discharge efficiency > 90%) of about 10.8 J / cm 3 can be obtained, which exceeds existing high-temperature polymer dielectric materials.

The invention belongs to the technical field of medical instruments, and relates to a rubber plug for an injector and a preparation method thereof. The rubber plug for the injector comprises the following components in parts by weight: a base material: 70-85 parts of a styrene-ethylene-butylene-styrene copolymer and 15-30 parts of polynorbornene; the lubricant system comprises microcapsules coated with polytetrafluoroethylene, and the total addition amount of the microcapsules is 5-10 parts; 0.3 to 0.8 part of an antioxidant; 7.5 to 10 parts of a plasticizer; 2-5 parts of a filler; a polyvinylpyrrolidone hydrophilic coating layer with the thickness of 0.05-0.1 mu m is arranged on the surface. According to the invention, the thermoplastic elastomer matrix embedded with the stress response type solid lubricant microcapsule inside is constructed, and a specific multi-stage preparation process is combined, so that long-term stable immobilization of the lubricant inside the rubber plug and efficient and controllable release of the lubricant when the lubricant is subjected to sliding stress are realized, and the service life of the rubber plug is prolonged. And meanwhile, excellent sealing performance and physical and mechanical properties of the rubber plug are ensured.

The invention discloses a preparation method of rigid quaternary ammonium salt side chain polynorbornene and an ionic membrane of the rigid quaternary ammonium salt side chain polynorbornene, the raw material of the rigid quaternary ammonium salt side chain polynorbornene at least comprises a rigid ionic monomer, the rigid ionic monomer contains a cyclic quaternary ammonium salt structure, an aromatic ring structure and a norbornene structure, the cyclic quaternary ammonium salt structure is directly connected with the aromatic ring structure, and the aromatic ring structure is directly connected with the norbornene structure. The rigid quaternary ammonium salt side chain polynorbornene ionic membrane prepared from the rigid ionic monomer and the flexible comonomer has excellent alkaline stability, oxidation resistance stability, mechanical property and repeatable processing capacity.

A cathode electrode assembly is disclosed, the cathode electrode assembly comprising an active material, a current collector, a conductive additive substance, and a polynorbornene-based (PNB) polymer binder configured to bind the active material and the conductive additive substance and maintain electrical contact between the active material and the conductive additive substance with the current collector. An alternative cathode electrode assembly comprising active material, a current collector, a conductive additive substance, a PNB polymer binder, and at least one polyacrylic acid (PAA) side chain configured to interface with the PNB polymer binder is also disclosed. A functional group is further disclosed, the functional group being configured to interface with a binder in a cathode electrode assembly of an electric battery system, the functional group comprising at least one PAA side chain.

The application belongs to the technical field of high-performance electronic packaging photoresist, and discloses an anthryl siloxane benzocyclobutene photoresist based on ultraviolet light response, a preparation method thereof and a packaging material. The photoresist takes polynorbornene as a main chain, covalently connects anthryl photosensitive groups, organic alkoxysiloxane and benzocyclobutene (BCB) heat-resistant groups, and has a clear general structural formula and adjustable component ratio. Through the synergistic effect of anthryl ultraviolet light response and BCB thermal curing, the inorganic siloxane component is uniformly dispersed, the obtained resin has ultralow dielectric constant, high thermal stability, excellent mechanical properties and good hydrophobicity, effectively solves the problems that traditional benzocyclobutene resin lacks ultraviolet light response, inorganic phases are easy to agglomerate, and dielectric properties and comprehensive stability are difficult to balance, and can be widely applied to the packaging medium field of high-frequency high-density integrated circuits.

The application discloses a kind of solid-state polymer electrolyte based on azobenzene liquid crystal polymer, including polymer main body and lithium salt, the polymer electrolyte main body is with azobenzene rod liquid crystal base element side chain type liquid crystal polymer PAzo with polynorbornene as main chain, lithium salt and the complexation of carbonyl in polymer, lithium ion is conducted by the movement of polymer segment, the conduction of lithium ion and the physical crosslinking effect of liquid crystal phase structure occur in different positions of polymer side chain, so that polymer ionic conductivity and mechanical property are improved simultaneously.Under the suitable lithium salt doping ratio, PAzo can form the liquid crystal phase structure of double continuous phase, liquid crystal base element and polymer main chain interpenetrate each other, provide fast three-dimensional ion transmission channel.The solid-state polymer electrolyte material is expected to be applied in all-solid-state lithium ion battery to improve the safety of battery.

A novel cosmetic composition for eyelash makeup, preferably eyelash extensions, particularly artificial eyelash extensions, which has good properties for eyelash extensions, is easy to use for consumers, and does not use organic solvents such as alkyl acetates that may be harmful to humans. 【Solution】The present invention relates to (a) at least one silicone-modified polynorbornene, and (b) (b-1) phenylated silicone oil, (b-2) hydrocarbon oil, (b-3) wax, (b-4) acrylate polymer, and (b-5) diester oil and at least one plasticizer selected from and relates to a composition. The present invention is very preferably used in eyelash makeup, preferably for eyelash extensions.

The application discloses a polynorbornene-based composite anion exchange membrane and a preparation method and application thereof. The composite anion exchange membrane comprises a polysulfone resin and an ionic polynorbornene, or the composite anion exchange membrane comprises a polybenzimidazole resin and the ionic polynorbornene, or the composite anion exchange membrane comprises the polysulfone resin, the polybenzimidazole resin and the ionic polynorbornene. The polynorbornene-based composite anion exchange membrane can significantly improve the mechanical strength of the anion exchange membrane in a wet membrane state by introducing the polysulfone resin or the polybenzimidazole resin into the ionic polynorbornene, can be used for assembling a more stable water electrolysis device, and improves durability.

The invention relates to the field of polypropylene materials, and discloses a macromolecular nucleating agent with alpha / beta double functions and a preparation method and application thereof, the preparation method comprises the following steps: adding norbornene dicarboxylic acid into a tetrahydrofuran solution, then adding a Grubbs three-generation catalyst to polymerize norbornene dicarboxylic acid, and volatilizing THF to obtain polynorbornene dicarboxylic acid powder; the preparation method comprises the following steps: dispersing polynorbornene dicarboxylic acid powder in ionized water, dropwise adding a sodium hydroxide aqueous solution, and finally dropwise adding an aqueous solution containing at least one of zinc, calcium and barium ions to generate the macromolecular nucleating agent with alpha / beta double functions on polypropylene. The prepared high-molecular nucleating agent can greatly improve the toughness of polypropylene under the condition of not reducing the strength and modulus of the polypropylene, realizes rigid-tough balance of the polypropylene, and is expected to widen the application field of the polypropylene. The process of direct blending and normal-temperature polymerization is adopted during modification preparation of the polypropylene composite material, the operation is simple and convenient, the controllability is strong, and industrial large-scale production is easy.

The present invention relates to a photosensitive composition containing a terpolymer of polynorbornene (PNB) free of PFAS and specific additives, which can be used to form microelectronic and / or optoelectronic devices and components thereof, and more particularly, to a composition which can be used to form microelectronic and / or optoelectronic devices and components thereof. The present invention relates to a composition containing PNB that does not contain PFAS, a specific polyfunctional cross-linking agent, and two or more phenolic compounds that are resistant to thermal oxidation chain degradation and exhibit improved mechanical properties.

This invention discloses a polynorbornene imide insulating material, its preparation method, and its applications, belonging to the technical field of electrical insulation materials and their preparation. This invention solves the problem of poor insulation performance in existing polynorbornene imide dielectric films. This invention obtains FPNI by fluorinating polynorbornene imide (PNI), a polymer dielectric film with a wide bandgap and a high glass transition temperature organic rigid backbone. Furthermore, by doping FPNI with the wide bandgap organic molecule 4,4-dihydroxydicyclohexane (OH), not only is hydrogen bonding crosslinking between hydroxyl and fluorine atoms achieved, but the wide bandgap OH also brings higher electronic transition energy levels, resulting in a crosslinked polymer film with excellent insulation performance and a breakdown field strength of 619.53 MV / m.