| 摘要 |
An electrode substrate, including: an electrode; and a membrane that is provided on the electrode and has a configuration of -A-B in the order from the electrode, wherein the A includes an alkylene group or an alkyleneoxy group and the B includes a chain of a repeating unit of a group expressed by a chemical formula (1) below, where: X is any of a hydrogen atom, a halogen atom, or an alkyl group; and R1 represents choline phosphate or -(CH<SUB>2</SUB>CH<SUB>2</SUB>O)<SUB>l</SUB>OH, with the l representing an integer of 2 or larger. Chemical formula 1: |
