Network formation and mechanical stretching of nanocomposite fabricated by crosslinking reaction of polymer-grafted nanoparticles

Preparation and Properties of Poly(Vinyl Alcohol)-Based Anion-Exchange Membranes with Different Cross-Linked Structures

“…This is due to the fact that the more cross-linking nodes are formed in the membrane, the denser the structure of the cross-linking network is, the more the movement of molecular chains is restricted, and the more difficult it is for the cross-linking PVAbased AEMs to transport OH − . 31 In addition, the water absorption of membranes of the above cross-linking systems is reduced, and the presence of water molecules facilitates the transport and migration of OH − in the membranes; therefore, the ICAEs of the cross-linking PVA-based AEMs have higher ICAEs than those before cross-linking. 29 Among them, the TPA cross-linking system has the greatest ICAE due to the hydrophobic nature of the benzene ring structure, which makes it the most difficult to conduct OH − .…”