| 主权项 |
1. A gas separation composite membrane, containing:
a gas-permeable supporting layer; and a gas separating layer containing a crosslinked organic-inorganic hybrid resin, over the gas-permeable supporting layer, wherein the crosslinked organic-inorganic hybrid resin has a structure in which a polymer incorporating therein an oxanthrene unit, or a polyimide compound has been crosslinked via a specific crosslinking chain, and the specific crosslinking chain contains a site represented by the following formula (A): wherein Ra represents an alkyl group, a cycloalkyl group, an aryl group, an alkoxy group, an aryloxy group, or *—O—**; the symbol “*” means a bonding hand with M1 in formula (A); the symbol “**” means a connection site with an adjacent M1; M1 represents a metal atom selected from the group consisting of Si, Ge, Mg, Al, Ti, Zr and Sb; Pa represents a polyimide compound or a polymer incorporating therein an oxanthrene unit; and La represents a connection site with an adjacent M1, wherein a structural part derived from the polyimide compound contains a repeating unit represented by formula (I), and a repeating unit represented by formula (III-a) or (III-b): wherein, in formula (I), R is a group of atoms selected from groups represented by formulas (I-a) to (I-g); wherein, in formulas (I-a) to (I-g), X1 represents a single bond or a divalent linking group; Y represents a methylene group or a vinylene group; R1 and R2 each independently represent a hydrogen atom or a substituent, or may bond with each other to form a ring; and the symbol “*” represents a binding site with the carbonyl group of the imide in formula (I); wherein R6, R7 and R8 represent a substituent; J1, J2 and W1 represent a single bond or a divalent linking group; l2, m2 and n2 represent an integer of from 0 to 3; L1 represents a divalent linking group; p represents an integer of 0 or more; q represents an integer of 1 or more; X3 represents a single bond or a divalent linking group; and Lb means a connection site with M1 in formula (A), and wherein the polymer incorporating therein an oxanthrene unit contains a repeating unit represented by formula (IV-a), and a repeating unit represented by formula (IV-b): wherein R10 to R20 represent a hydrogen atom or a substituent; J3, J4 and W2 represent a single bond or a divalent linking group; L2 represents a divalent linking group; r represents an integer of 0 or more; Y1 and Y2 represent a group of atoms for forming a ring with the carbon atom and the benzene ring; Lc means a connection site with M1 in formula (A). |
