Effect of Additives on Self-Assembling Behavior of Nafion in Aqueous Media

The dynamic light scattering technique is employed to study the self-assembling behavior of Nafion in dilute aqueous solutions and in water-based mixture solvents. The mixture solvents contain either salt or a small amount of glycerol, which is often necessary for the fabrication of the electrode−membrane assembly. Two kinds of aggregates are found in Nafion aqueous solutions: (1) an intrinsic aggregate (∼150 nm) due to the hydrophobic …