Lg Chem, Ltd

Lakwon Choi

Chong Kyu Shin

Youngju Lee

Eunkyoung Byun

Hyungjoon Jeon

Hyelim Kang

Danbi Han

Eun Woo Cho

Provided is a composition for interfacially polymerizing polyamide including an amine compound and a chain-type-structured additive containing one or more amino groups and two or more hydroxyl groups, and a method for manufacturing a water treatment separation membrane, and a water treatment separation membrane using the same.

Composition for polyamide interfacial polymerization, and method for manufacturing water treatment separation membrane by using same

Provided is a method for manufacturing a water-treatment membrane, the method including bringing an aqueous solution including free chlorine and a halogen ion into contact with a polyamide active layer, wherein the free chlorine is present in an amount from 150 ppm to 400 ppm and the halogen ion is present in an amount from 150 ppm to 400 ppm based on the aqueous solution, and a water-treatment membrane manufactured using the same.

Method for preparation of water-treatment separation membrane and water-treatment separation membrane prepared thereby

Provided is a composition for interfacial polymerizing polyamide including an amine compound; and one or more types of compounds selected from among a purine-based compound and a pyrimidine-based compound of Chemical Formula 1:

Composition for interfacial polymerization of polyamide and manufacturing method for water treatment separation membrane using same

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Daejeon, South Korea

Lakwon Choi