565 results about "Norbornene" patented technology

The invention discloses photocuring hydrogel capable of being combined with cytokines and used for tumor organoid culture and application, and belongs to the technical field of organoid culture. According to the invention, the hydrogel which can fix cells, can be combined with cell factors and can realize organoid recovery is developed through norbornene modified heparin, norbornene modified gelatin, sulfydryl four-arm polyethylene glycol, glucan, matrix metal protein peptidomimetic MMP and a photoinitiator. The hydrogel can be used for directly preparing organoids, heparin of various structures can be used, the cost is reduced, the modified heparin can bind factors or matrix protein and can controllably release the factors, the modified gelatin provides amino acid energy for collagen hydrolysate, and the hydrogel is formed by photocuring in a stepwise polymerization mode, is controllable in structure and can be used for preparing collagen collagen. The adjustable bionic modulus and the adjustable bionic stress relaxation are realized. The hydrogel disclosed by the invention can be used for culturing various organs, overcomes the problems of low repeatability, instability and the like in the prior art, and is suitable for the fields of tumor drug evaluation and the like.

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 invention discloses fast-curing modified polydicyclopentadiene resin as well as a preparation method and application thereof. The preparation method comprises the following steps: preparation of a polydicyclopentadiene resin system: dissolving a Grubbs second-generation catalyst and tributyl phosphite in cyclohexylbenzene to prepare a catalyst solution, and mixing the prepared catalyst solution with a dicyclopentadiene or norbornene-dicyclopentadiene mixed solution; preparing an epoxy resin system: adding an anhydride curing agent and an accelerant into epoxy resin and fully mixing; and mixing and stirring the epoxy resin system and the polydicyclopentadiene resin system, uniformly mixing, and storing at room temperature to obtain the modified polydicyclopentadiene resin. The curing degree of the modified PDCPD resin can reach 90-95% within 3-5 minutes under the condition of 60-90 DEG C. The modified PDCPD resin has good interface bonding with carbon fibers, glass fibers and basalt fibers, and the prepared composite material has excellent mechanical properties and high heat resistance.

The invention discloses hydrogenated modified resin as well as a preparation method and application thereof, and belongs to the technical field of bio-based materials. The preparation method comprises the following steps: carrying out polymerization reaction on cyclopentadiene and derivatives thereof and norbornene monomers in the presence of a first solvent, and then adding modified monomers for continuous reaction; separating out the cycloolefin copolymer and reacting the cycloolefin copolymer with bio-based carboxylic acid in the presence of a second solvent to obtain a second polymerization solution; and removing unreacted monomers and residual solvents and oligomers, then carrying out a hydrogen reaction with deeply hydrogenated naphthenic oil under the action of a noble metal hydrogenation catalyst, and removing impurities, gel substances, residual solvents and oligomers to obtain the hydrogenated modified resin. The method is simple in process, easy to operate and mild in condition, the bio-based synthetic resin with medium-low molecular weight and high performance can be obtained, and the hydrogenated modified resin has excellent tackifying performance and can be applied to the fields of hot melt adhesives, automobile parts, packaging materials or medical equipment and the like.

The invention belongs to the technical field of food packaging or medicine packaging materials, and particularly relates to a cooking-resistant high-transparency high-barrier cycloolefin copolymer film and a preparation process thereof. The cooking-resistant high-transparency high-barrier cycloolefin copolymer film is a three-layer co-extruded film, the layer structure is shown in figure 1, the cooking-resistant high-transparency high-barrier cycloolefin copolymer film is composed of an inner layer, a middle layer and an outer layer, and the cooking-resistant high-transparency high-barrier cycloolefin copolymer film is prepared from the following raw materials: the inner layer is prepared from COC, a toughening agent and modified ternary polypropylene random copolymer; the middle layer comprises COC, a toughening agent, modified binary polypropylene random copolymer and layered double hydroxide; the outer layer is prepared from COP, a toughening agent, modified binary polypropylene random copolymer and layered double hydroxide; by utilizing the characteristics of a multi-layer film structure and taking the high-performance modified COP layer as an outer layer, the problem that the light transmittance is reduced due to the fact that copolymerized ethylene monomers and norbornene in COC form hydroxyl groups with water molecules due to high-temperature ring opening is solved, and the light transmittance of the cycloolefin copolymer film reaches 95% or above after the cycloolefin copolymer film is sterilized at the high temperature of 121 DEG C.

The invention discloses negative photosensitive polyamic acid, photosensitive resin and a preparation method and application of the negative photosensitive polyamic acid and the photosensitive resin. The negative photosensitive polyamic acid is prepared from diamine and a dianhydride compound as monomers through end capping of anhydride containing a norbornene group; the photosensitive resin is formed by mixing negative photosensitive polyamide acid, polythiol and a photoinitiator, and is applied to preparation of photoresist, photosensitive packaging adhesive, photocuring adhesive and the like; the photosensitive resin is subjected to ultraviolet curing and gradient imidization to prepare negative photosensitive polyimide cross-linked through polythiol, and the negative photosensitive polyimide has good thermal performance and photosensitive performance; the photosensitive resin is used for preparing photoresist and is a solution-developed negative photosensitive polyimide system, alkenyl of a polyamide acid terminal chain and sulfydryl of polythiol are subjected to a click reaction to construct a cross-linking point, the solubility of polyamide acid in an exposure area in an alkaline solution is reduced, a negative pattern is obtained, the preparation method is simple, and the cost is low. The pattern resolution and sensitivity are high, and the method is expected to be well applied to the fields of optics and electronics.

The invention discloses a cycloolefin copolymer / carbon nanotube hybrid material modified oil-water separation sponge, relates to the field of high polymer materials, and provides a novel cycloolefin block copolymer which can be obtained by ring-opening metathesis polymerization of cycloolefin and 5-norbornene-2-carboxylic acid methyl ester under the catalysis of a third-generation Grubbs catalyst. The method is simple in process, and the length of the 5-norbornene-2-carboxylic acid methyl ester block can be accurately regulated, so that the nano shish-kebab structure and the surface performance of the nano shish-kebab structure can be regulated. The process for preparing the nano-hybrid shish-kebab from the cycloolefin block copolymer and the carbon nanotubes is simple in technology, the surface of a rough surface material such as polyurethane sponge can be uniformly covered with the nano-hybrid shish-kebab to form a thin film, super-hydrophobicity can be achieved, and meanwhile the nano-hybrid shish-kebab has oleophylic performance; and the oil-water separator has high separation efficiency and good wear resistance in the oil-water separation process.

The invention discloses an ablation-resistant EPDM (Ethylene-Propylene-Diene Monomer) thermal insulation material and a preparation method thereof, and belongs to the field of thermal insulation materials, the thermal insulation material is prepared from the following components in parts by mass: 70 to 80 parts of EPDM rubber, 20 to 30 parts of liquid EPDM, 15 to 20 parts of silicon dioxide, 10 to 40 parts of high-temperature-resistant filler, 10 to 15 parts of flame retardant, 10 to 15 parts of heat-resistant fiber and 3 to 5 parts of cross-linking agent. A third monomer of the ethylene propylene diene monomer is ethylidene norbornene, and the ethylene content is 50-60%. The raw materials are placed between double rollers to be mixed, and a mixed sheet is obtained; and performing vulcanization molding on the mixed sheet to obtain the ablation-resistant ethylene-propylene-diene monomer thermal insulation material. The content of the heat-resistant fibers is increased, the aramid fibers are subjected to in-situ carbonization to form a carbonized layer structure frame, and meanwhile, the content of SiO2 is regulated and controlled, so that the content of SiO2 is matched with the increase of the fibers, and the ablation resistance of the thermal insulation material is improved.

The invention relates to the technical field of biaxially oriented polypropylene films, in particular to a paper-plastic composite biaxially oriented polypropylene film and a preparation method and application thereof.The paper-plastic composite biaxially oriented polypropylene film comprises a coining surface layer, a core layer and a low-melting-point thermal composite layer which are sequentially arranged, and the coining surface layer comprises co-polypropylene and 15-25 wt% of ethylene-norbornene copolymer A; the low-melting-point thermal composite layer comprises 5-10wt% of an ethylene-norbornene copolymer B and an ethylene-vinyl acetate copolymer, and the core layer comprises polypropylene. The paper-plastic composite biaxially oriented polypropylene film disclosed by the invention can meet the requirements of a laser holographic imprinting process of an imprinting surface layer on the premise of not influencing the performance of a low-melting-point thermal compounding layer, can be directly thermally compounded with aluminum-plated card paper without an adhesive layer, is high in compounding strength, has the advantages of energy conservation and environmental protection, and is suitable for popularization and application. And the laser anti-counterfeiting card paper obtained after film covering and aluminum plating is good in barrier property, and the shelf life of packaged contents can be prolonged.

The present invention relates to a matting agent for HAA powder coatings and a preparation method thereof. The matting agent is a matting polymer containing special groups such as hydroxyl and epoxy groups with significantly different activities. The matting polymer is mainly prepared from glycidyl methacrylate, methyl methacrylate, butyl acrylate, 5-norbornene-2-methanol, 2-methyl-3-butene-2-ol, dicyclopentadiene dioxide, a hydroxyl polyester resin, and an accelerator. Due to the presence of hydroxyl and epoxy groups of varying activities in its structure, supplemented by the accelerator and the physical dispersion effect during the preparation process, the product has excellent matting ability and good storage and matting stability. It can reduce the gloss of HAA system powder coatings to 3-10%.

A composition comprising decellularized extracellular matrices, hydrogels comprising the same, and methods of making the same are disclosed.

The invention relates to an aliphatic copolyester elastomer and a preparation method thereof, and belongs to the field of high polymer materials. The elastomer is prepared through a series ring-opening copolymerization reaction of epoxide and cyclic anhydride, and the method comprises the following steps: under the action of a metal-free catalyst (a phosphazene ligand P1-tert-octyl / triethyl boron system) and an initiator (terephthalyl alcohol), carrying out a series ring-opening copolymerization reaction on epoxide and cyclic anhydride, the preparation method comprises the following steps: reacting epoxide (such as epoxypropane and allyl glycidyl ether) with aliphatic anhydride (such as glutaric anhydride) in a xylene solvent to generate a polyester prepolymer retaining an active end; adding a second group of epoxide (such as cyclohexene oxide) and anhydride (such as tetrahydrophthalic anhydride and norbornene dianhydride), continuously reacting to form a block copolymer, and then crosslinking. The material performance can be regulated by changing the monomer combination, the atom economy is high, and the raw materials can be produced on a large scale. The process is simple and environment-friendly, and a new choice is provided for application of the degradable elastomer in the fields of medical treatment, environmental protection and the like.

The invention relates to the field of separation and purification, and discloses a norbornene separation and purification method and system. The method provided by the invention is suitable for separation and purification of the norbornene synthesis liquid obtained by a solvent method, high-purity norbornene can be obtained in two steps, and meanwhile, a solvent which can be reused in a norbornene synthesis process can be directly obtained. According to the method, high-purity norbornene suitable for COC synthesis can be obtained at a high yield, and the method has the advantages of being short in technological process, high in resource utilization rate, reliable in process, easy to manage, easy to industrially popularize and the like.

The invention provides a barrier laser film and a preparation method thereof, the barrier laser film sequentially comprises a substrate layer, a barrier layer and a barrier adhesion layer from bottom to top, the barrier layer has a three-dimensional network structure and has hydrophobic styrene, norbornene and vinyl siloxane groups; the barrier adhesion layer is provided with a hydrophobic polyurethane chain segment, nano silicon dioxide particles and styrene, so that the hydrophobicity and the gas barrier property can be improved; both the barrier layer and the barrier adhesion layer have compact three-dimensional network structures and have reversible imine bonds generated by Schif alkali reaction of keto groups of diacetone acrylamide serving as a cross-linking agent and amino groups of primary amine, so that the density of the three-dimensional network structures can be further improved, and self-repairing of the three-dimensional network structures can be realized; the density of the three-dimensional network structure is maintained, and excellent gas barrier property and self-repairing property are realized through the synergistic effect of the two.

The invention discloses a carbon fiber modified sizing agent as well as a preparation method and application thereof. The preparation method of the carbon fiber modified sizing agent comprises the following steps: (1) reacting 5-norbornene-2-methylamine with monofunctional epoxy resin to obtain slurry; and (2) dissolving the slurry prepared in the step (1) in an organic solvent to prepare the modified sizing agent. And then obtaining the modified carbon fiber through a dipping and sizing process. The method is simple in process, and the interface bonding strength of the carbon fibers and the polydicyclopentadiene can be greatly improved.

The invention provides a preparation method of a multi-layer co-extrusion composite insulating material, and relates to the technical field of battery material manufacturing. The preparation method comprises the following steps: respectively melting and mixing an upper layer component, a middle layer component and a lower layer component which are respectively prepared, co-extruding, casting and forming to obtain a multi-layer membrane; performing two-way stretching on the multiple layers of membranes to obtain a composite insulating material; wherein raw materials adopted by the middle layer component comprise isotactic polypropylene and graphene in-situ polymerized polystyrene, raw materials adopted by the upper layer component comprise isotactic polypropylene and norbornene dianhydride, and raw materials adopted by the lower layer component comprise isotactic polypropylene and norbornene dianhydride. According to the obtained composite insulating material, good bonding strength exists between the layers and between the composite insulating material and the metal layer, and the composite insulating material is especially suitable for being used as a base film of a composite current collector.

The invention relates to a biaxially oriented polypropylene aluminum-plated label film and a preparation method thereof, and belongs to the technical field of aluminum-plated label films. The biaxially oriented polypropylene aluminum-plated label film comprises an aluminum-plated layer, a middle layer and a lower surface layer which are arranged in sequence, the aluminum plating layer is prepared from co-polypropylene and 15 to 25 percent by weight of an ethylene-propylene-5-vinyl-2-norbornene terpolymer; the content of 5-vinyl-2-norbornene in the ethylene-propylene-5-vinyl-2-norbornene terpolymer is 4.0 to 4.5 mol percent, and the content of the 5-vinyl-2-norbornene in the ethylene-propylene-5-vinyl-2- The middle layer is prepared from homo-polypropylene, 10 to 20 weight percent of modified pearlescent master batch and 4 to 7 weight percent of maleic anhydride-homo-polypropylene grafted copolymer. According to the biaxially oriented polypropylene aluminum-plated label film, through the collaborative design of the aluminum-plated layer and the middle layer, the surface tension of the aluminum-plated layer of the biaxially oriented polypropylene aluminum-plated label film is large and lasting, and the adhesive force of an aluminum layer formed on the surface of the aluminum-plated layer after the film is subjected to vacuum evaporation is high.

The invention discloses polyolefin artificial leather, a preparation method thereof and an automobile seat, and belongs to the technical field of polyolefin artificial leather. The polyolefin artificial leather comprises a base cloth layer, a high-elasticity and high-softness layer and a coating layer which are sequentially stacked, the high-elasticity and high-softness layer comprises the following raw material components: a polyolefin elastomer, a low-density polyolefin elastomer, modified high-elasticity resin, an assistant crosslinker, a coupling agent and an anti-aging agent; the low-density polyolefin elastomer comprises a modified polyolefin elastomer, inorganic microspheres and a silane coupling agent; the modified polyolefin elastomer is prepared by grafting 4-vinyl-1, 2-phthalic acid and maleic anhydride on a polyolefin elastomer by adopting a melt grafting method; the modified high-elasticity resin comprises a high-elasticity polyolefin elastomer, a rubber elastomer, a silane coupling agent and a peroxide cross-linking agent; the high-elasticity polyolefin elastomer is obtained by copolymerization of propylene, norbornene and cardanol; p-chlorophenyl trimethoxy silane is at least adopted as the coupling agent.

The invention relates to a biaxially oriented polypropylene aluminum-plated label film and a preparation method thereof, and belongs to the technical field of aluminum-plated label films. The biaxially oriented polypropylene aluminum-plated label film comprises an aluminum-plated layer, a middle layer and a lower surface layer which are arranged in sequence, the aluminizable layer comprises co-polypropylene and 5 to 10 weight percent of norbornene dianhydride grafted polyolefin elastomer; the grafting rate of the norbornene dianhydride in the norbornene dianhydride grafted polyolefin elastomer is 15 to 25 percent; the middle layer is prepared from homo-polypropylene, 10 to 20 weight percent of pearlescent master batch and 4 to 7 weight percent of polymethyl methacrylate-polypropylene-polymethyl methacrylate block copolymer. According to the biaxially oriented polypropylene aluminum-plated label film, through the collaborative design of the aluminum-plated layer and the middle layer, the surface tension of the aluminum-plated layer of the biaxially oriented polypropylene aluminum-plated label film is large and lasting, and the adhesive force of an aluminum layer formed on the surface of the aluminum-plated layer after the film is subjected to vacuum evaporation is high.

The invention provides antibacterial silk fibroin hydrogel as well as a preparation method and application thereof, and relates to the technical field of biomedical materials. The antibacterial silk fibroin hydrogel provided by the invention is prepared from the following components: modified silk fibroin and copper montmorillonite, the modified silk fibroin is at least one of glycidyl methacrylate modified silk fibroin, methacrylic anhydride modified silk fibroin, isocyanate ethyl methacrylate modified silk fibroin and norbornene anhydride modified silk fibroin, and chemical crosslinking is formed among molecules of the modified silk fibroin. The copper montmorillonite and the modified silk fibroin form physical crosslinking through hydrogen bonds, and the mass ratio of the modified silk fibroin to the copper montmorillonite is 100: (1-10). The antibacterial silk fibroin hydrogel provided by the invention has good biological safety, long-acting antibacterial property, electrical conductivity and good mechanical property.

To obtain a copolymer which has a high crosslinking rate and excellent productivity and can form a molded product with thermal aging resistance, small compression set at high and low temperatures, and improved low-temperature characteristics (low-temperature elastic recovery characteristics and Gehman torsion characteristics), a composition containing the copolymer, and the like.SOLUTION: An ethylene / α-olefin / nonconjugated polyene copolymer (A) has a structural unit derived from ethylene [A1], a structural unit derived from a C4-20 α-olefin [A2], and a structural unit derived from a nonconjugated polyene [A3] having two or more partial structures selected from the group consisting of the following general formulae (I) and (II) in total in one molecule and satisfies specific requirements. The structural unit derived from the [A2] contains a structural unit derived from 1-butene, and the structural unit derived from the [A3] contains a structural unit derived from 5-vinyl-2-norbornene.SELECTED DRAWING: None

The invention discloses a cycloolefin block copolymer oil-water separation film, relates to the field of high polymer materials, and provides a method for preparing a cycloolefin block copolymer through ring-opening metathesis polymerization of cycloolefin and 5-norbornene-2-carboxylic acid methyl ester under the catalysis of a third-generation Grubbs catalyst. And the hybrid shish-kebab is prepared by using the polymer, so that an oleophylic and hydrophobic film structure can be formed, the prepared film can be effectively hydrophobic and has oleophylic performance, and a new treatment mode is provided for sewage prevention and treatment. The whole preparation process is simple in technology, rapid and batch production can be achieved, and popularization is convenient.

The invention relates to the technical field of cables, in particular to a multi-layer co-extrusion cable based on a low-smoke halogen-free flame-retardant composite layer and a preparation method of the multi-layer co-extrusion cable based on the low-smoke halogen-free flame-retardant composite layer, and the multi-layer co-extrusion cable structurally comprises a conductor layer, a double-layer insulating layer, a reinforced buffer layer and a composite sheath layer from inside to outside in sequence; wherein the double-layer insulating layer comprises an inner layer and an outer layer; the inner layer takes an ethylene-octylene copolymer as a core layer and takes a norbornene dianhydride grafted polyether ester elastomer as a shell layer, so that the material is endowed with high elasticity and impact resistance, and the cracking of the insulating layer is inhibited; the modified nano montmorillonite is dispersed into a nano lamellar barrier, so that heat diffusion is delayed, and low smoke and zero halogen are realized; the outer layer is composed of an ethylene-methyl acrylate matrix and di-tert-butyl phosphinic acid aluminum salt, the di-tert-butyl phosphinic acid aluminum salt is decomposed at high temperature to generate aluminum phosphate, a carbon layer is formed to isolate oxygen heat, and phosphorus-containing free radicals capture active free radicals to interrupt flame propagation.

The invention belongs to the field of biomedical engineering and medical materials, and discloses a hydrogel combined reagent, tough hydrogel can be prepared based on the hydrogel combined reagent, the tough hydrogel is based on brand-new dual-network hydrogel, the network of the tough hydrogel is composed of a PEGMA / GelNB covalent cross-linked network and a PEGMA self-cross-linked network, norbornene serves as a rigid structure, and the hydrogel combined reagent can be used for preparing the tough hydrogel. The hydrogel composition reagent has the advantages that the hydrogel composition reagent has a spring-like effect in a gel network, the stretching and compression performance of the hydrogel can be remarkably improved, and the tough hydrogel prepared from the hydrogel composition reagent has good biological activity and excellent mechanical property and can be quickly gelatinized under mild conditions.

The invention discloses a high-temperature-resistant poly (4-methyl-1-pentene) dielectric film with synergistically improved insulating strength and dielectric property and a preparation method and application thereof, and belongs to the field of preparation processes of polymer energy storage dielectric materials. The invention aims to solve the problems that the existing polymer energy storage material is low in energy storage density at high temperature, and the dielectric property and the insulating strength cannot be improved at the same time. The invention provides a method for preparing a norbornene dianhydride grafted poly (4-methyl-1-pentene) film by a two-step method by using poly (4-methyl-1-pentene) particles, norbornene dianhydride and dicumyl peroxide and combining a solution suspension technology with a melt casting extrusion technology and a one-way stretching traction technology. The high-temperature-resistant poly (4-methyl-1-pentene)-based dielectric film prepared by the invention has excellent breakdown strength and dielectric property, and the discharge energy density is as high as 5.92 J / cm < 3 > when the charge-discharge efficiency is greater than or equal to 90% at 150 DEG C.

The invention relates to the technical field of separation and purification, and discloses a method and a system for extracting high-purity norbornene. The norbornene product obtained by the method provided by the invention has high purity and is suitable for COC synthesis. Moreover, the method also has the advantages of high treatment efficiency, easiness in control and management of the treatment process and the like, and is very suitable for large-scale industrial production and application.

The invention relates to the technical field of separation and purification, and discloses a method and a system for separating and purifying norbornene. According to the method provided by the invention, the light components and the heavy components of the norbornene synthetic liquid are sequentially removed, and the high-purity norbornene product can be obtained by controlling the treatment mode and conditions in the removal process, so that the method has the advantages that the norbornene product is high in yield and purity, the treatment process is easy to control and manage, and the like; the method is suitable for industrial popularization.

The invention provides a method for preparing tetracyclododecene in a reactive distillation device by taking C9 fraction and norbornene as raw materials. The method comprises the following steps: mixing the C9 fraction and the norbornene in a mixer and reacting in the reactive distillation device; the reacted material is directly rectified in a reaction rectification device, residual C9 fraction and norbornene in the reaction are obtained at the tower top, and a crude tetracyclododecene product is obtained in the reaction kettle; and separating high-boiling-point components from the crude tetracyclododecene product in the reaction kettle section of the rectifying tower in the reactive distillation device in a third rectifying tower to obtain the high-purity tetracyclododecene product. According to the invention, the reaction rectification device is used, and the reactor is combined with the rectification tower, so that the reaction product can be directly and preliminarily separated to obtain a light component mainly containing norbornene and a heavy component containing tetracyclododecene, the equipment cost can be saved, the energy consumption can be reduced, and the rectification effect can be improved; meanwhile, the C9 fraction is used as a raw material, and downstream application of the C9 fraction is expanded.

The invention relates to the technical field of separation and purification, and discloses a method and a system for separating and purifying polymer-grade norbornene with high yield. The method provided by the invention is suitable for separation and purification of the norbornene synthesis liquid obtained by a solvent synthesis method, and has the characteristics of easiness in industrial popularization, low energy consumption, high yield, high purity of the obtained norbornene product and the like.

The invention discloses a polymer based on side-chain liquid crystal polynorbornene as well as a preparation method and application thereof, a monomer based on side-chain liquid crystal polynorbornene has a structure as shown in a general formula 1, and the polymer based on side-chain liquid crystal polynorbornene has a repeating unit as shown in a general formula 8. According to the monomer structure, a benzamide group is introduced into a side chain liquid crystal molecular structure, adjacent liquid crystal side chains generate hydrogen bond interaction after polymerization, on one hand, the mechanical property of the material is improved, on the other hand, stacking arrangement of a layered structure can be promoted during film preparation, and the gas barrier performance is improved.