PVA-silica anion-exchange hybrid membranes prepared through a copolymer crosslinking agent

Membranes crosslinked with 25% or 50% poly(GMA-co-γ-MPS) and heated at 130 °C show lower mechanical strength, but have higher stabilities and electrical properties. WR is in the range of 29-39%, and the IECP is ranging from 0.76 to 1.01 mmol/g. Diffusion dialysis of hydrochloride acid (HCl) and ferrous chloride (FeCl2) mixture shows the separation factor SH/Fe can reach up to 21, with higher dialysis coefficient of H+ (UH) than that of commercial membrane DF-120.