Lg Chem, Ltd

Keun Won Song

Chong Kyu Shin

Hyungsam Choi

Byoungsoo Lee

Byungguk Kim

Byungho Jeon

Youngsik Eom

Hyuin Ryu

Bo Ri Lee

Sora Bang

Hyungbae Gil

Kyeonghee Jang

Provided are a method for quantifying an amine compound forming a membrane active layer before preparing the membrane active layer, a method for quantifying a polyamide or an unreacted amine compound in a membrane active layer, and a method for determining criteria for a manufacturing condition of a membrane active layer or a method for setting a manufacturing condition.

Method for quantifying amine compound constituting separator active layer prior to preparation of separator active layer, method for quantifying polyamide or unreacted amine compound in separator active layer, and method for setting preparation conditions of separator active layer or establishment standards for preparation conditions of separator active layer

Provided is a method for preparing a gas separation membrane, the method including forming a porous layer by coating a hydrophilic polymer solution on a porous substrate; and forming an active layer by coating a composition for forming an active layer including a polymer of Chemical Formula 1 on the porous layer, 

Method for manufacturing gas separation membrane and gas separation membrane manufactured thereby

The present application relates to a polymer, a method for manufacturing the same, and an electrolyte membrane including the same.

Polymer, method for manufacturing same, and electrolyte membrane comprising same

The present invention relates to a method for manufacturing a water treatment separation membrane, the method including: forming an aqueous solution layer including an amine compound on a porous support; and bringing an organic solution including an acyl halide compound into contact with on the aqueous solution layer to form a polyamide active layer, in which the organic solution includes a non-polar solvent and an amphiphilic solvent having a boiling point of 120&#xb0; C. or more, thereby improving a permeation flux, and a water treatment separation membrane manufactured by the manufacturing method.

Method for manufacturing polyamide-based water-treatment separator having excellent permeation flux characteristics and water-treatment separator manufactured by same

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Daejeon, South Korea

Keun Won Song