GAS SEPARATION MEMBRANE, GAS SEPARATION MODULE, GAS SEPARATION DEVICE, GAS SEPARATION METHOD, AND POLYIMIDE COMPOUND
申请人:FUJIFILM Corporation
公开号:US20190176081A1
公开(公告)日:2019-06-13
A gas separation membrane includes a gas separation layer containing a polyimide compound, and the polyimide compound has a repeating unit represented by Formula (I). The gas separation module, the gas separation device, and the gas separation method are obtained by using the gas separation membrane,
R
a
represents a specific tetravalent group, R
b
represents a trivalent group having a specific ring, X
a
represents a specific substituent, and X
b
represents a hydrogen atom or a substituent. A polyimide compound represented by Formula (I-b) or (I-c),
R
a
represents a specific tetravalent group, R
c
represents a specific divalent group, A
a
, A
b
, A
c
, and X
b
represent a hydrogen atom or a substituent, and X
c
and X
d
represent a specific substituent.