Permeability through cellulose membranes grafted with vinyl monomers in a homogeneous system. VII. Acrylamide grafted cellulose membranes

The homogeneous grafting of acrylamide (AAm) onto cellulose was carried out in a dimethyl sulfoxide/paraformaldehyde (DMSO/PF) solvent system. The diffusive permeabilities of solutes through the AAm‐grafted cellulose membranes, apparent activation energy for solute permeation through them, states of water in them, and their microphase separated structures were investigated. The permeability through the grafted membranes was superior to that through the cellulose membrane cast from the DMSO/PF solution of cellulose. The total water contents of the grafted membranes were larger than that of the cellulose membrane. The state of intermediate water in the grafted membranes with fine microphase separated structures was influenced remarkably. A higher activation energy was observed for the solutes with poor permeability through the membranes.