GAS SEPARATION MEMBRANE

Abstract: the present invention relates to a gas separation membrane for separating carbon dioxide from a mixed gas containing the carbon dioxide, the gas separation membrane including a polycarbonate-polyorganosiloxane copolymer (a), wherein the polycarbonate-polyorganosiloxane copolymer (a) contains a polycarbonate block (a-1) consisting of repetition of a structural unit represented by the following general formula (i) and a polyorganosiloxane block (a-2) including repetition of a structural unit represented by the following general formula (ii), and wherein a content of the polyorganosiloxane block (a-2) in the polycarbonate-polyorganosiloxane copolymer (a) is from 20 mass % or more to 70 mass % or less:

Inventor(s): Satoshi MIYANE, Hirotoshi ISHII, Kazushige IDETA, Yasuhiro ISHIKAWA

CPC Classification: B01D53/228 (by diffusion (manufacturing semi-permeable membranes ; form, structure or properties of semi-permeable membranes ; material for semi-permeable membranes ))

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