Multilayer thin film based reverse osmosis separation membrane using cross-linking between organic monomers and method for producing the same

摘要

PROBLEM TO BE SOLVED: To provide a reverse osmosis separation membrane providing not only high level salt removal rate but also remarkably improved water permeation rate and pollution resistance and to provide a production method of the same.SOLUTION: A reverse osmosis separation membrane comprises: a porous support body and an LbL (Layer-by-Layer) selection layer on the top of the porous support body; an intermediate layer consisting of a polymer nano thin film between the porous support body and the LbL selection layer; and a layered structure of the LbL selection layer where a first selection layer including a first organic monomer and a second selection layer including a second organic monomer are laminated.