Single-sheet bipolar membranes have been prepared by grafting of styre
ne into radiation peroxidized LDPE films, which were then chlorosulfon
ated from one side, chloromethylated and quaternized from the other si
de. Various monomer systems were investigated and optimized. Obtained
bipolar membranes were characterized by their specific electrical resi
stance, static potentials, rectification properties and water splittin
g capabilities.