Disclosed is a method of preparing a filtration membrane. The method includes providing a copolymer solution by dissolving a statistical copolymer in a mixture of a co-solvent and a first organic solvent, coating the copolymer solution onto a porous support layer to form a polymeric layer thereon, coagulating the polymeric layer on top of the support layer to form a thin film composite membrane, and immersing the thin film composite membrane into a water bath to obtain a filtration membrane. Also disclosed are a filtration membrane prepared by the method, and a process of filtering a liquid using the filtration membrane thus prepared.

Disclosed is a method of preparing a filtration membrane. The method includes providing a copolymer solution by dissolving a statistical copolymer in a mixture of a co-solvent and a first organic solvent, coating the copolymer solution onto a porous support layer to form a polymeric layer thereon, coagulating the polymeric layer on top of the support layer to form a thin film composite membrane, and immersing the thin film composite membrane into a water bath to obtain a filtration membrane. Also disclosed are a filtration membrane prepared by the method, and a process of filtering a liquid using the filtration membrane thus prepared.

Disclosed is a method of preparing a filtration membrane. The method includes providing a copolymer solution by dissolving a statistical copolymer in a mixture of a co-solvent and a first organic solvent, coating the copolymer solution onto a porous support layer to form a polymeric layer thereon, coagulating the polymeric layer on top of the support layer to form a thin film composite membrane, and immersing the thin film composite membrane into a water bath to obtain a filtration membrane. Also disclosed are a filtration membrane prepared by the method, and a process of filtering a liquid using the filtration membrane thus prepared.

Disclosed is a method of preparing a filtration membrane. The method includes providing a copolymer solution by dissolving a statistical copolymer in a mixture of a co-solvent and a first organic solvent, coating the copolymer solution onto a porous support layer to form a polymeric layer thereon, coagulating the polymeric layer on top of the support layer to form a thin film composite membrane, and immersing the thin film composite membrane into a water bath to obtain a filtration membrane. Also disclosed are a filtration membrane prepared by the method, and a process of filtering a liquid using the filtration membrane thus prepared.

The gas separation membrane element contains a gas separation membrane, and a sealing portion for preventing mixture of a source gas and a specific gas permeated through a gas separation membrane. The gas separation membrane has a first porous layer including a porous membrane, and a hydrophilic resin composition layer disposed on the first porous layer. The sealing portion is a region in which a cured material of a sealant penetrates in at least the first porous layer in the gas separation membrane, and a thermal expansion coefficient A of the sealing portion and a thermal expansion coefficient B of a material forming the first porous layer satisfy a relation (I):

0.35A/B1.0 (I).

Described herein are mixed matrix filtration membranes and related, compositions, methods and systems and in particular mixed matrix filtration membranes with an embedded polymer network and/or embedded polymeric micro/nanoparticles functionalized with a functionalization polymer covalently and/or non covalently linked to the micro/nanoparticles and related compositions, methods, and systems.

Described herein are mixed matrix filtration membranes and related, compositions, methods and systems and in particular mixed matrix filtration membranes with an embedded polymer network and/or embedded polymeric micro/nanoparticles functionalized with a functionalization polymer covalently and/or non covalently linked to the micro/nanoparticles and related compositions, methods, and systems.

Provided is a membrane distillation system capable of real-time monitoring of membrane wetting, which includes: a raw water storage tank configured to store fluid; a membrane distillation water treatment unit configured to receive raw water stored in the raw water storage tank to generate pure water, the membrane distillation water treatment unit having an inlet water chamber into which an inlet water flows from the raw water storage tank, a membrane for separating the inlet water in the inlet water chamber into a steam and a concentrated water, and a treated water chamber for receiving the steam separated by the membrane and concentrating the steam; and a membrane wetting detection unit to detect a membrane wetting phenomenon and a membrane wetting location of the membrane by measuring a light passing through the membrane in real time.

Provided is a membrane distillation system capable of real-time monitoring of membrane wetting, which includes: a raw water storage tank configured to store fluid; a membrane distillation water treatment unit configured to receive raw water stored in the raw water storage tank to generate pure water, the membrane distillation water treatment unit having an inlet water chamber into which an inlet water flows from the raw water storage tank, a membrane for separating the inlet water in the inlet water chamber into a steam and a concentrated water, and a treated water chamber for receiving the steam separated by the membrane and concentrating the steam; and a membrane wetting detection unit to detect a membrane wetting phenomenon and a membrane wetting location of the membrane by measuring a light passing through the membrane in real time.

A mixture for forming an anion exchange membrane includes a rigid monomer, an active monomer, and a polymerization initiator. The active monomer includes an acrylate group and a functional group selected from the following: a cation group, a halide group configured to be substituted with a cation group, or a leaving group configured to be substituted with a cation group.