69 results about "Polymer dissolution" patented technology

The invention discloses a mixed matrix membrane based on defect MOF and a preparation method and application thereof, and the method comprises the following steps: (1) dissolving a hydroxyl-containing monodentate carboxyl organic ligand and 2-aminoterephthalic acid in a solvent A, stirring at room temperature, and carrying out ultrasonic treatment to obtain a mixed solution; then dropwise adding tetraisopropyl titanate into the mixed solution, and carrying out heating reaction in a reaction kettle; after the reaction is finished and cooling is carried out, a solid product is collected through centrifugation, washed and dried, and DN-MIL-125 is obtained; (2) dispersing DN-MIL-125 in a solvent B to obtain a DN-MIL-125 suspension, dissolving an intrinsic microporous polymer cPIM-1 in a solvent C to obtain a cPIM-1 solution, and then uniformly mixing the cPIM-1 solution with the DN-MIL-125 suspension to obtain a membrane casting solution; and carrying out defoaming treatment on the membrane casting solution, and forming a membrane by adopting a solution casting method to obtain the mixed matrix membrane DN-MIL-125 / cPIM-1. According to the method, the defective metal organic framework material DN-MIL-125 is added into the cPIM-1 intrinsic microporous polymer to prepare the mixed matrix membrane, and the separation performance of CO2 / N2 gas can be remarkably improved.

The invention relates to the technical field of oil and gas field development engineering and intelligent control, in particular to a polymer dry powder direct distribution fracturing fluid remote data transmission control system which comprises an environmental parameter acquisition center used for acquiring the conductivity, the fluid temperature, the fluid pH value, the mineralization degree and the dry powder polymer nominal molecular weight of a fracturing operation site. The data is sent to the dynamic reference construction unit; the dynamic reference construction unit is used for obtaining theoretical equilibrium viscosity and a characteristic swelling time constant, and constructing a theoretical reference evolution equation by utilizing the theoretical equilibrium viscosity and the characteristic swelling time constant; the space-time mapping sensing unit collects main path mixed flow to obtain an actually measured dissolution rate signal; the active factor identification unit is used for calculating a polymer dissolution active factor; the cascade feedback control unit generates predicted final value viscosity and a screw feeder frequency conversion control signal, and constructs a semantic feature transmission vector; accurate feedforward control over the performance of the fracturing fluid is achieved, and the hysteresis problem of traditional control is solved.

A method for purifying a regenerated polymer into a higher-purity polymer is disclosed. In embodiments of the present invention, the method comprises obtaining a regenerated polymer, leaching various contaminants using a leaching solvent to produce an leached polymer, and then dissolving the leached polymer in a solvent to produce a first solution containing the dissolved polymer. The first solution is precipitated, filtered, and extracted. A higher-purity polymer is separated from the obtained solution.

The invention discloses a preparation method and application of an in-situ copolymerized PIM-pillararene composite membrane, a tetrahydroxy-containing compound and a tetrafluoro-containing compound are used as reaction monomers, a precursor matrix is synthesized by adjusting the proportion of the tetrafluoro-containing compound, and then a mixed matrix polymer is obtained by in-situ doping of polyhydroxy pillararene. Dissolving a polymer in an organic solvent to obtain a membrane casting solution; and coating a solvent-resistant substrate with the membrane casting solution, and drying in a drying oven to obtain the composite membrane with high separation performance. Fluorine groups in a PIM matrix and hydroxyl groups on cyclic polyhydroxy aromatic hydrocarbon molecules are subjected to chemical cross-linking reaction to enhance the porosity of the polymer and increase the specific surface area, and column aromatic rings are introduced to promote adsorption of guest molecules, so that rich high-performance transmission channels are formed. On the basis of PIM synthesis, a polyhydroxy pillar arene compound is further introduced, the membrane stability can be improved through a rich net structure, and the separation performance of common organic solvents is remarkably improved.

A method for inhibiting the formation of scale in a subterranean geological includes injecting a scale-inhibiting composition into a subterranean geological formation comprising a target zone. The scale inhibiting composition includes water and an amphiphilic polymer selected from the group consisting of S1, S2, and combinations thereof, where the structure of S1 is:the structure of S2 is:where x is in a range from 4 to 20, and n is in a range from 3 to 15, and where the amphiphilic polymer is dissolved in the scale inhibiting composition in an amount such that the concentration of the amphiphilic polymer at the target zone is equal to or greater than 500 ppm.

The invention belongs to the field of composite membranes, and particularly relates to a waterproof breathable membrane based on a micropore-nanofiber composite structure and a preparation method of the waterproof breathable membrane. Comprising the following steps: preparing an ePTFE microporous membrane by adopting a thermally induced phase separation method or a two-way stretching method, and carrying out corona treatment on the ePTFE microporous membrane; dissolving a fiber-forming polymer in an organic solvent to form a uniform spinning solution; the ePTFE microporous membrane obtained after corona treatment is fixed to a receiving roller; carrying out electrostatic spinning by adopting a multi-jet nozzle to obtain a nanofiber / base membrane composite blank; meanwhile, an N, N-dimethylformamide steam treatment cabin is arranged behind the receiving roller, then continuous interface fusion and reinforcement treatment is immediately carried out on the just deposited nanofiber / base membrane composite blank through a hot pressing roller, and the composite membrane is obtained; and drying and rolling the composite film to obtain the waterproof breathable film with the micropore-nanofiber composite structure. The breathable film provided by the invention realizes extremely high hydrostatic pressure and excellent water vapor permeability, and also has good mechanical strength and durability.

The invention belongs to the technical field of oil and gas field development and research, and relates to a method and system for predicting the solubility of a non-Newtonian polymer in a forced stretching device and a readable medium, and the method comprises the following steps: obtaining the viscosity of a target polymer after natural dissolution, and fitting an intrinsic equation according to the viscosity; based on the intrinsic equation and the swelling behavior of the polymer particles, establishing a swelling double-fluid model, and inputting the mass transfer rate of the non-Newtonian polymer into the swelling double-fluid model to generate a liquid phase volume fraction and a solid phase volume fraction; inputting the volume fractions of the liquid phase and the solid phase into a component transport equation to generate the mass fractions of all components in the solid phase so as to obtain the solid density; inputting the liquid-phase and solid-phase volume fractions into the group equilibrium model to generate the average particle size of solid-phase particles; coupling output results in the swelling double-fluid model, the component transport equation and the group balance model to obtain the dissolving property of the non-Newtonian polymer. The method can more accurately predict the behavior characteristics of particles in non-Newtonian complex fluid so as to realize the process optimization of polymer rapid dissolution configuration.

The invention relates to a gas separation polymer composite membrane with high pressure resistance as well as a preparation method and application thereof. The method comprises the following steps: dissolving a crystalline polymer in a good solvent, uniformly coating the polymer solution on the surface of a flat substrate, immersing the flat substrate in an ionic liquid with weak interaction with the polymer, and carrying out solvent exchange treatment at a constant temperature. The polymer / ionic liquid composite membrane prepared by the method is used for gas separation. According to the gas separation polymer composite membrane, the high ionic liquid content is maintained, and meanwhile the high mechanical performance of the composite membrane is maintained. The ionic liquid can stably exist in a polymer matrix to improve the continuity of a gas transmission path, and meanwhile, the ionic liquid which weakly interacts with a macromolecular chain can effectively promote a polymer molecular chain to form a microcrystalline structure in the exchange process, so that the mechanical property of the composite membrane in the gas separation process is greatly improved, and the gas separation efficiency is improved. And during gas separation, high pressure resistance, high permeability and high selectivity are shown. The method is simple in process, convenient to operate and mild in condition.

The present application relates to the technical field of fiber surface treatment, in particular to a sizing agent based on a multiple bonding synergistic enhancement mechanism and a preparation method and application thereof, comprising the following steps: dissolving a polymer containing active hydrogen functional groups in a solvent A under a protective atmosphere, stirring and dissolving to obtain a polymer solution; dropping a compound containing covalent crosslinking active sites into the polymer solution, continuously reacting to obtain a homogeneous modified solution; purifying the homogeneous modified solution to obtain a purified product; dissolving the purified product in a solvent B to obtain the sizing agent. The present application solves the technical problems of low physical adsorption bonding strength and poor fatigue resistance caused by the rigidity of a single chemical bonding interface in the existing aramid fiber surface modification technology.

The present application relates to the technical field of radiative cooling, and discloses a preparation method for an ultra-high reflectivity radiative cooling fiber membrane. In the present application, a polymer is dissolved in an organic solvent to prepare an electrospinning precursor solution, and by adjusting parameters such as the concentration of the electrospinning precursor solution, a spinning voltage, a spinning distance, a drum rotation speed, a spinning liquid supply rate, and a slide rail reciprocation rate, an ultra-high reflectivity radiative cooling fiber membrane having a porous structure is prepared. The reflectivity of the ultra-high reflectivity radiative cooling fiber membrane is greater than 95% in a solar spectral band of 0.3-2.5 um. The ultra-high reflectivity radiative cooling fiber membrane prepared in the present application has a thickness of 300-500 um. The ultra-high reflectivity radiative cooling fiber membrane of the present application can be prepared in batches, has good flexibility, and can be widely applied to the fields of garments, buildings, equipment, etc.

The present invention relates to a process for obtaining a film or a film forming article, the process comprising: a) providing a solvent system comprising molecules with at least one sulfoxide function, the solvent system having a water content of less than or equal to 1000 ppm by weight and having a pH of greater than or equal to 6; b) preparing a polymer solution by dissolving a polymer in the solvent system or by synthesizing a polymer in the solvent system; c) removing the solvent system to obtain a film or a film forming article.

The present invention provides: a novel binder that is capable of suitably contributing to the production of a battery and / or battery characteristics by means of a secondary battery binder which contains an aqueous polymer, wherein the amount of moisture generated at 170-290°C in the aqueous polymer is 15% by mass or less as measured by the measurement method described below, the aqueous polymer is a vinyl polymer that has a repeating unit having an acidic functional group and a nonionic hydrophilic repeating unit, the weight average molecular weight of the aqueous polymer is 1,000,000 or less, and the pH at 25°C of an aqueous solution that is obtained by dissolving the aqueous polymer in water at a concentration of 2% by mass is 6.5 to 8.5 inclusive; and a slurry which contains this binder. [Amount of moisture generated at 170-290°C] 20 g of an aqueous polymer solution which is obtained by dissolving the aqueous polymer in water so as to have a solid content concentration of 2% by mass is added to a tray, and after drying the aqueous polymer solution at 60°C for 8 hours in a forced convection oven, additional drying is performed for 24 hours under conditions of 60°C and a degree of pressure reduction of 0.1 MPa in a vacuum dryer so as to produce a film. The thus-produced film is cut into an approximately 2-mm-square piece weighing 10 mg, and measurement is performed under the conditions described below using a Karl Fischer moisture meter and a moisture vaporizer.　Measurement conditions: After the temperature is raised to 80°C, the temperature is kept at 80°C until the weight loss rate falls to 0.1 µg / s or less (method A). Thereafter, the temperature is raised from 80°C to 300°C over 30 minutes (method B).　Method A data collection interval: 1 second; Method B data collection interval: 5 seconds; Calculation of amount of generated moisture: The ratio of the amount of generated moisture is calculated according to the formula described below, where Wa is the weight after keeping the temperature at 80°C until the weight loss rate falls to 0.1 µg / s or less, and Wb is the amount of generated moisture detected between 170°C and 290°C.　Ratio of amount of generated moisture = Wb / Wa × 100 (% by mass)

The invention relates to a preparation method and application of a conjugated polymer film based on an acid-cleavable side chain. The preparation method comprises the following steps: dissolving a conjugated polymer based on an acid-cleavable side chain in a solvent to prepare a polymer solution; uniformly stirring the polymer solution and the first acid solution to prepare a polymer / acid mixed solution pre-processed by the acid solution; coating a substrate with the polymer / acid mixed solution pre-processed by the acid liquid, and forming a polymer film after the solvent is volatilized; performing first thermal annealing on the polymer film; and applying a second acid solution to the surface of the polymer film after the first thermal annealing, and then carrying out second thermal annealing to obtain the conjugated polymer film without the side chain reprocessed by the acid solution. By utilizing the acid sensitivity characteristic of a side chain, an acid solution is added into a polymer solution before a polymer film is formed to pre-remove part of the side chain so as to synergistically induce ordering of the polymer, so that the film forming quality and the comprehensive performance of the polymer are improved.

A liquid dressing includes a solvent and a film-forming polymer that is dissolved in the solvent and that is made by a process including: providing an alkoxy group-containing silicone resin which is obtained by subjecting an orthosilicate compound and an acidic aqueous solution to a hydrolysis and polymerization reaction; providing an isocyanate group-containing prepolymer which is obtained by reacting a diisocyanate compound with a hydrophilic polyether diol; and subjecting the alkoxy group-containing silicone resin and the isocyanate group-containing prepolymer to a polymerization reaction so as to obtain the film-forming polymer.

This invention provides highly solvent-resistant organic particles using polymers with a cis-1,4-polyisoprene core, such as natural rubber. [Solution] A method for producing organic particles comprising the steps of: dissolving a polymer having cis-1,4-polyisoprene as the main skeleton in a solvent and carrying out a cyclization reaction to obtain a cyclized rubber with a cyclization rate of 60-90%; and suspend polymerization of the cyclized rubber and a vinyl monomer in the presence of water and a suspension stabilizer, wherein the Mooney viscosity [ML(1+4)100℃] of the polymer having cis-1,4-polyisoprene as the main skeleton is 18-65 as defined in JIS K 6300, and the vinyl monomer includes a monofunctional vinyl monomer having only one vinyl group and a crosslinkable vinyl monomer having multiple vinyl groups.

The application provides a phosphoric acid doped polybenzimidazole high-temperature proton exchange membrane and a preparation method thereof. In the membrane material, the mass fraction of the phosphoric acid in the polybenzimidazole polymer ranges from more than 0 wt.% to not more than 3000 wt.%. The membrane is prepared through the following steps: S1, dissolving the polybenzimidazole polymer in a solvent, adding phosphoric acid to obtain a composite solution; S2, casting the composite solution on a film forming container, and drying to obtain the phosphoric acid doped polybenzimidazole high-temperature proton exchange membrane. The phosphoric acid doped polybenzimidazole high-temperature proton exchange membrane can not only prepare a stress-free HT-PEM to prevent phosphoric acid loss, but also can arbitrarily and accurately control the phosphoric acid doping amount and the thickness of the prepared membrane through the solution composition and volume, so as to prepare a stress-free phosphoric acid doped polybenzimidazole composite HT-PEM with high stability and ultrahigh specific proton conductivity.

This specification discloses a process for purifying conjugated polymers. The process comprises dissolving the conjugated polymer in a solvent to form a solution, adding an agent to the solution to produce an agent carrying impurities, and removing the agent carrying impurities from the solution to obtain a purified conjugated polymer, wherein the agent is at least one of metal scavenger resins, ion exchange resins, activated clay, charcoal, silica, alumina, diatomaceous earth, cellulose, modified cellulose, and any combination thereof. A process for analyzing the purity of the purified conjugated polymer is also disclosed. The purified conjugated polymer is dried to form a thin layer, thermally decomposed, subjected to chemical digestion with a mixture of nitric acid and hydrochloric acid, and then subjected to ICP-MS analysis. The purified conjugated polymer is used in organic electronic applications and / or devices.

The invention relates to the field of electrode materials, and discloses an embedded flexible transparent electrode based on metal oxide / polymer optimization and a preparation method and application of the embedded flexible transparent electrode. Silver nanowires are deposited on the surface of a rigid or flexible substrate to obtain a silver nanowire conducting layer; dissolving a polymer in a solution of metal oxide nanoparticles to prepare a precursor solution, then coating the surface of the silver nanowire conductive layer with the precursor solution, and performing drying and annealing to obtain an optimized silver nanowire conductive layer; and finally, coating the optimized silver nanowire conductive layer with the flexible substrate precursor solution, and curing to obtain the embedded flexible transparent electrode. According to the embedded flexible transparent electrode, the metal oxide / polymer optimized silver nanowire is adopted as the conductive layer to prepare the transparent flexible electrode, and the transparent flexible electrode has low surface roughness, high transmittance and high conductivity. The transmittance is 86%-97%, the surface roughness is 0.5-3 nm, the sheet resistance is 5-25 omega / square, and the film is suitable for preparing high-performance flexible photoelectric devices.

The invention discloses a preparation method of an ultra-porous polymer fiber, which comprises the following steps: mixing a non-solvent and a solvent of a polymer to obtain a mixed solvent, and dissolving the polymer in the mixed solvent to form a spinning solution with certain viscosity and good spinnability; in the electrostatic spinning process by using the spinning solution, the non-solvent firstly induces fiber skin to be rapidly cured to form a fiber structure, phase separation is continuously induced in the fiber to form an ultra-porous structure, the ultra-porous polymer micro-nano fiber with three-dimensional double communicating holes in the fiber is prepared in one step, and post-treatment processes such as washing and calcining are not needed. The method can be used for simply and effectively preparing the super-porous polymer fiber, and the super-porous polymer fiber can be applied to technologies such as oil-water separation.

The application relates to a preparation method of an interface modified composite membrane for hydrogen production by electrolysis of water, which comprises the following steps: respectively providing NiFe-LDHs, a porous membrane supporting substrate and an ion-conducting polymer; dispersing the NiFe-LDHs into a dispersion solvent to obtain a dispersion liquid, pouring the dispersion liquid on the supporting substrate to load the NiFe-LDHs on the supporting substrate through vacuum filtration, and obtaining a loaded membrane; dissolving the ion-conducting polymer into a dissolving solvent to obtain a polymer solution, pouring the polymer solution on the surface of the loaded membrane, uniformly coating the polymer solution by using a scraper, and drying to obtain an interface modified composite membrane; and the polymer is concentrated and filled into the micropores of the supporting substrate in the drying process to provide ion channels of the interface modified composite membrane. The application also relates to the interface modified composite membrane obtained by the above method. The synthetic steps of the application are simple, and the prepared composite membrane has the advantages of low resistance, high selectivity, good mechanical performance and the like.

The present disclosure relates to a method of manufacturing a separator for a lithium secondary battery. In particular, the method of manufacturing a separator for a lithium secondary battery includes the steps of preparing a slurry for forming a porous coating layer including inorganic particles dispersed in an asymmetric linear ketone solvent and a binder polymer dissolved therein, the binder polymer including a first binder polymer and a second binder polymer; and applying the slurry for forming a porous coating layer to a porous polymer substrate having a plurality of pores, followed by drying. According to embodiments of the present disclosure, the slurry for forming a porous coating layer is prepared by dissolving a first binder polymer and a second binder polymer having predetermined properties in an asymmetric ketone solvent, and a separator can be obtained by using the slurry for forming a porous coating layer. In this way, adhesion to an electrode (lamination strength) can be improved and compression resistance of the separator can be increased.

This slurry contains a secondary battery binder and water. The secondary battery binder contains an aqueous polymer. The amount of neutralization titration by 0.1 mol / L sodium hydroxide aqueous solution of 70 g of an aqueous solution obtained when the aqueous polymer is dissolved in water at a concentration of 2 mass% is 0.6 mL to 5.0 mL. Insoluble content when 2.0 g of the aqueous polymer is dissolved in 100 g of water at 25°C is 20 mass% or less with respect to the aqueous polymer. With this configuration, the slurry provided herein contains a novel secondary battery binder capable of satisfactorily contributing to the manufacturing of a secondary battery and / or battery characteristics.

The application discloses a method for recycling plastic by using degradable materials. The method comprises the following steps: (1) washing and drying the degradable materials, crushing them, and placing them in a flotation device to screen out the degradable material particles through flotation; (2) dissolving polyacrylamide polymers in distilled water to obtain a modified solution, drying the obtained degradable material particles, placing them in the modified solution, stirring, ultrasonic treatment, taking out the modified degradable material particles, drying, mixing, and heating and melting to obtain a liquid mixture; (3) adding polyurethane urea elastic materials to the liquid mixture to obtain recycled plastic. The method can obtain recycled plastic from degradable materials, improve resource utilization, improve adhesion after modification by polyacrylamide polymers, and improve the mechanical properties and toughness of the recycled plastic by adding polyurethane urea elastic materials to the molten liquid mixture.

The application discloses a kind of multistage propulsion motor with sensing function and preparation method thereof, it is related to the preparation technical field of micro-nanomotor.The method comprises the following steps: substitution reaction is carried out to KH and 3-hydroxybenzyl alcohol, then polypropylene glycol is added, and lactic acid is added to prepare polymer PLA-NB-PPG;Dissolved in DCM, add peroxide, AgNO3, photoinitiator and spirooxazine, electrospinning is carried out, and nanofiber membrane is prepared;Ultraviolet irradiation treatment is carried out, alcohol dispersion is used, then solvent is volatilized under reduced pressure, and multistage propulsion motor with sensing function is prepared.The motor of the application has the characteristics of self-provided double power and sensing, can double sensing of enhanced raman signal and fluorescence while moving, that is, multistage propulsion and multiple sensing can be realized.The application solves the problem that existing motor type biosensor has insufficient power, sensing and movement action is split.

A purification method for producing a polyolefin (PO) regenerate (r), including (a) mixing superficially cleaned PO waste (p), referred to as raw polymer (p), with solvent and dissolving the raw polymer (p) in the solvent, (b) recovering the purified polymer from the solvent, (c) preparing the solvent, (d) returning the solvent to step (a), (e) separating residues (e1, e2), and (f) extruding the purified PO regenerate (r) to form pellets (r). Step (c) is carried out using at least one membrane filter (c1).

This invention provides a direct granulation method for preventing agglomeration of energetic, water-containing waste HTPB propellant, comprising: Step 1, microsphere suspension preparation: dissolving polylactic acid, polylactic acid-glycolic acid copolymer, and amphiphilic modified polymer mPEG-PLAA in a safe organic solvent, and preparing a microsphere suspension using a microfluidic emulsion method. The amphiphilic modified polymer mPEG-PLAA modifies the microspheres, forming a porous structure on the surface of the microspheres. Step 2, mixing and coating: directly mixing energetic, water-containing waste HTPB propellant with a water content of 55%–70% with the microsphere suspension obtained in Step 1, and using shear force or slight vibration to uniformly coat the energetic, water-containing waste HTPB propellant particles with a microsphere network, forming a microsphere coating layer. Step 3, granulation. The method of this invention is simplified and efficient: it does not require complete dehydration, operates directly in a water-containing state, shortens the granulation cycle to 2–12 hours, and reduces energy consumption per ton of propellant to 10–20 kWh.

The invention discloses a triphenylmethyl free radical polymer with light-sensitive and heat-sensitive characteristics. The triphenylmethyl free radical polymer shows the characteristic that fluorescence can be regulated and controlled. The polymer is dissolved in a solvent, after 365 nm ultraviolet irradiation, free radical signals are weakened, fluorescence is subjected to blue shift, and the maximum emission wavelength is shifted to 470 nm, so that the cyan-blue fluorescent polymer is obtained. After the blue fluorescent solid is heated at 120 DEG C for 2 hours, the free radical signal is enhanced, and the fluorescence reversibly shifts back to the initial red (682 nm). The illumination and heating regulation process can be circulated for multiple times, which shows that the fluorescence of the triphenylmethyl free radical polymer has reversible regulation. The triphenylmethyl free radical polymer disclosed by the invention has the advantages of simple process and convenience in operation due to the fluorescence regulation characteristic, and the obtained fluorescent polymer has application potential in the field of luminescent materials.

The present application relates to oil and gas field development engineering and intelligent control technical field, specifically to a kind of polymer dry powder direct matching fracturing fluid remote data transmission control system, including environmental parameter acquisition center, for the conductivity, fluid temperature, fluid pH value, salinity and dry powder polymer nominal molecular weight of fracturing operation site are collected, and sent to dynamics benchmark construction unit;Dynamics benchmark construction unit is used to obtain theoretical equilibrium viscosity and characteristic swelling time constant, and theoretical benchmark evolution equation is constructed using theoretical equilibrium viscosity and characteristic swelling time constant;Space-time mapping perception unit acquires main road mixed flow to obtain measured dissolution rate signal;Active factor identification unit calculates polymer dissolution activity factor;Cascade feedback control unit generates predicted terminal viscosity and screw feeder variable frequency control signal, and constructs semantic feature transmission vector;The present application realizes the accurate feedforward control of fracturing fluid performance, solves the hysteresis problem of traditional control.

The application provides a preparation method and application of a self-supporting intrinsic microporous uranium adsorption film, and belongs to the technical field of uranium adsorption materials. The polymer has a structural formula shown in formula I: the polymer is dissolved in an organic solvent to obtain a casting solution; the casting solution is coated on the surface of a base material, and then immersed in a non-solvent for phase inversion to obtain the self-supporting intrinsic microporous film uranium adsorption film. In the application, cyanobenzaldehyde and spirocyclic tetraols are used to increase the molecular weight of the polymer through a carbon-carbon single bond mode, and the triphenylmethane in the macromolecular main chain can significantly increase the free volume of the polymer and simultaneously retain the substituents in the monomer, thereby creating favorable conditions for constructing large-scale pore structures and enriching uranium adsorption sites. Experimental results show that the uranium adsorption capacity of the uranium adsorption film prepared from the polymer reaches 183.1 mg / g, and the uranium element enrichment efficiency is as high as 91.5%.

Compositions comprised of nanodiscs and methods for their manufacture are provided. The methods comprise contacting lipid or synthetic lipid analogues with one or more nanopores in aqueous solution, thereby forming a membrane vesicle that encompasses the one or more nanopores embedded within the membrane vesicle; contacting the one or more membrane vesicles with a nanodisc forming polymer; and generating a nanodisc composition wherein the nanodisc forming polymers solubilise the membrane vesicle and encircle the one or more nanopores embedded within the membrane vesicle so as to form a plurality of nanodiscs. The nanodiscs may be used to facilitate incorporation of protein or nucleic acid nanopores into flow cell or membrane array nanopore sensor devices.