Gas separation composite membrane and method of producing the same, and gas separating module, gas separation apparatus and gas separation method using the same
Gas separation composite membrane and method of producing the same, and gas separating module, gas separation apparatus and gas separation method using the same
GAS SEPARATION COMPOSITE MEMBRANE AND METHOD OF PRODUCING THE SAME, AND GAS SEPARATING MODULE, GAS SEPARATION APPARATUS AND GAS SEPARATION METHOD USING THE SAME
申请人:FUJIFILM Corporation
公开号:US20140130667A1
公开(公告)日:2014-05-15
A gas separation composite membrane, containing a gas-permeable supporting layer and a gas separating layer containing a crosslinked polyimide resin over the gas-permeable supporting layer, in which the crosslinked polyimide resin is formed by a polyimide compound being crosslinked by a radically crosslinkable functional group thereof, and a ratio [η] of a crosslinked site to an imide group of the polyimide compound (the number of crosslinked sites/the number of imide groups) in the crosslinked polyimide resin is 0.0001 or more and 0.45 or less; a method of producing the same; and a gas separating module, a gas separation apparatus and a gas separation method using the same.
GAS SEPARATION COMPOSITE MEMBRANE, METHOD OF PRODUCING THE SAME, GAS SEPARATING MODULE USING THE SAME, AND GAS SEPARATION APPARATUS AND GAS SEPARATION METHOD
申请人:FUJIFILM CORPORATION
公开号:US20140352534A1
公开(公告)日:2014-12-04
A gas separation composite membrane, containing: a gas-permeable supporting layer; and a gas separating layer containing a crosslinked polyimide resin, over the gas-permeable supporting layer, in which the crosslinked polyimide resin is composed of a polyimide compound having been crosslinked through an ester linking group, in which the polyimide compound contains a repeating unit of formula (I), a repeating unit of formula (II-a) or (II-b), and a repeating unit of formula (III-a) or (III-b), and in which a ratio [κ] of a site forming a crosslinked chain mediated by the ester linking group to an imide group (the number of specific crosslinkable sites/the number of imide groups) is more than 0.4 and less than 0.5.