The invention relates to a method for a fabrication of a pore comprising membrane and a pore comprising membrane. The pore comprising membrane (1) comprises at least a porous metallic layer (3) on a porous substrate (6), wherein the porous metallic layer (3) is connected to the porous substrate (6) and the pores (4) of the metallic layer (3) overlap at least partially with the pores (7) of the porous substrate (6). The method comprises at least the following steps: i) deposition of the metallic layer (3) onto a support material (2), wherein the deposited metallic layer (3) forms a plurality of feedthroughs, in particular a percolation network on the support material (2), ii) removal of the support material (2), iii) connecting of the metallic layer (3) with the porous substrate (6) such that pores (4) of the metallic layer (3) overlap at least partially with the pores (7) of the porous substrate (6).

The invention relates to a method for creating a porous film through aqueous phase separation, the method comprising: i) providing an aqueous solution comprising a responsive copolymer, and optionally a charged polymer, wherein at least one of the monomers in the responsive copolymer is a responsive monomer; ii) forming the aqueous solution into a thin layer and contacting the thin layer of aqueous solution with an aqueous coagulation solution in which the responsive copolymer is not soluble, or contacting the thin layer of aqueous solution with an aqueous coagulation solution in which a complex comprising the responsive copolymer and the charged polymer is not soluble; and iii) allowing solvent exchange between the aqueous solution and the aqueous coagulation solution to produce a porous film. The invention further relates to porous films or membranes thus obtained.

An electrochemical system utilizes an anion conducting layer disposed between an anode and a cathode for transporting a working fluid. The working fluid may include carbon dioxide that is dissolved in water and is partially converted to carbonic acid that is equilibrium with bicarbonate anion. An electrical potential across the anode and cathode creates a pH gradient that drives the bicarbonate anion across the anion conducting layer to the cathode, wherein it is reformed into carbon dioxide. Therefore, carbon dioxide is pumped across the anion conducting layer.

A hollow fiber membrane for separating blood plasma from blood, comprising a blood contact layer and a support layer each comprising a hydrophobic polymer, a hydrophilic polymer and vitamin E, and a method for producing said hollow fiber membrane to provide a hollow fiber membrane is described. The hollow fiber membrane is characterized by a reduced hemolysis activity so that the hollow fiber membrane can be advantageously used in plasmapheresis methods.

An object of the present invention is to provide a nanofiltration membrane having a molecular weight cut-off of 200 to 1,000 and a high amount pf permeate for methanol, and suitable for use as an organic solvent nanofiltration membrane. A nanofiltration membrane formed using a polyamide resin, the nanofiltration membrane having a molecular weight cut-off of 200 to 1,000 and a methanol permeability of 0.03 L/(m.sup.2.Math.bar.Math.h) or more.

Provided by the present invention is a method for preparing a porous polymer semipermeable membrane, wherein a hydrophobic polynorbornene polymer and a hydrophilic small-molecule crosslinking agent containing a thiol functional group are mixed and dissolved in a solvent capable of dissolving both of them to obtain a coating solution; the coating solution is applied onto the surface of a biosensor electrode and dried such that the hydrophobic component and the hydrophilic component undergo phase separation; then, a membrane is formed and crosslinking is carried out, the unreacted hydrophilic small-molecule crosslinking agent is removed, and re-drying is carried out to obtain a porous polymer semipermeable membrane; also disclosed is a product. For the product obtained by the preparation method of the present invention, the hydrophobicity of the polymer enables good adhesion of the porous polymer semipermeable membrane to the surface of the biosensor, and the porous structure ensures the diffusion of biological substances to the surface of the biosensor, and regulates the diffusion rate of the biological substances in the semipermeable membrane without changing the thickness of the polymer membrane significantly.

Embodiments of the present disclosure provide a carbon molecular sieve membrane (and precursors therefor) including a pyrolysis product of an oxygen-free ladder polymer of intrinsic microporosity. Embodiments of the present disclosure further provide a method of gas separation including contacting a fluid including one or more gas components with a carbon molecular sieve membrane, wherein the carbon molecular sieve membrane includes a pyrolysis product of an oxygen-free ladder polymer of intrinsic microporosity, and separating at least one of said gas components from the fluid. Embodiments of the present disclosure further provide a method of preparing a carbon molecular sieve membrane including heating an oxygen-free ladder polymer of intrinsic microporosity to a pyrolysis temperature in an oxygen-free atmosphere to form, optionally without producing any oxygen-containing gas, a pyrolysis product.

A single piece-type bipolar film roll with a mesh cloth support and a manufacturing method therefor. The single piece-type bipolar film roll is supported by a high-strength ultra-high molecular weight polyethylene mesh cloth, one side of the single piece-type bipolar film roll is a cation exchange layer containing a benzenesulfonic acid group, the other side of the single piece-type bipolar roll is an anion exchange layer containing a benzyl dimethyl butyl ammonium quaternary amino group, and the middle is a water dissociation catalyst layer containing a benzyl methyl butyl amine tertiary amino group, and the three layers form the single piece-type bipolar film roll. By providing a wider protective film and a narrower spacing film, a dipping and absorbing film roll is polymerized to prepare a composite base film roll which is then subjected to continuous sulfonation to prepare a single-sided sulfonated composite positive film roll, and then the unreacted blank side is sequentially subjected to three-step chemical reactions such as complete chloromethylation, complete tertiary amination and incomplete methylation, so as to prepare a single piece-type bipolar film roll having a compact structure, a clear middle interface, a high mechanical strength and a stable quaternary amino group, and the product qualification rate is high; and the single piece-type bipolar film roll is suitable for a bipolar film electrodialysis engineering application of an organic material-containing system.

The present disclosure provides a nanostructured cellulose membrane system with high porosity, and methods for making same. The cellulose membrane system includes carboxylate-functionalized cellulose nanofibers combined with a cellulose microfiber scaffold, which are attached by a crosslinking reaction between the nanofibers and/or between the nanofibers and the microfiber scaffold.

The invention relates to membranes, monomers and polymers. The monomers can form polymers, which can be used for membranes. The membranes can be used in alkaline fuel cells, for water purification, for electrolysis, for flow batteries, and for anti-bacterial membranes and materials, as well as membrane electrode assemblies for fuel cells. In addition to the membranes, polymers and monomers and methods of using the membranes, the present invention also relates to methods of making the membranes, monomers and polymers.