Studies on ionic liquid 1-ethyl-3-methyl imidazolium ethylsulphate complexed with PVA

Poly(vinyl alcohol) (PVA) and polymer electrolyte (PVA + 15 wt% LiClO4) doped with 20 wt% ionic liquid (IL) (1-ethyl-3-methyl imidazolium ethylsulphate), [EMIM][EtSO4] have been prepared using solution cast technique. These electrolyte films have been characterized using XRD, DSC, TGA, FT-IR and impedance spectroscopic techniques. It has been found that polymer electrolyte film (PVA + 15 wt% LiClO4) + 20 wt% IL shows maximum amorphosity and conductivity.