Relaxation Phenomena in Concentrated Polyelectrolyte Solution

Abstract

In the concentrated aqueous solution of the sodium salt of carboxy methyl cellulose the interactions of polyions, hydlation layers or hydrogen bonds are studied through the dynamic viscoelastic modulus at the frequency of mainly 500 c.p.s. over the temperature range of 0°C–50°C. The dependence of rigidity and absorption on temperature seems to indicate that this material has such a property as to show two kinds of relaxation phenomena, and that each phenomenon is observed to be controlled individually by ethanol, urea, neutral salts or dioxane. The interrelation between the relaxation phenomenon and the interaction is discussed here. These results are also supported by the existence of two activation energy for static viscous flow.