Abstract
We prepared novel anion-exchange membranes（AEMs）from synthesized PVA-based block copolymers with various contents of anion exchange groups. The AEMs were cross-linked physically by annealing them and cross-linked chemically with glutaraldehyde（GA）solutions. A comparison of the block-type AEMs（bAEMs）and the random-type AEMs（rAEMs）with almost the same membrane resistance shows that bAEMs have about 20 ％ higher dynamic state transport number than rAEMs. The AEMs with CmVBTAC＝13 mol.％ and GA concentration＝0.01 vol.％ had both the highest dynamic state transport number, 0.97 and lowest membrane resistance, 0.81 Ω cm2 of all the bAEMs.
