Viscoelastic Relaxation Mechanism of Inorganic Polymers. V: Counterion Effects in Bulk Polyelectrolytes

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Abstract
The viscoelastic properties of an inorganic anionic polymer were studied as a function of the counterion. It is shown that as the counterion strength (expressed, for instance, by the ratio of charge to internuclear distance between cation and oxygen anion) increases, the distribution of relaxation times narrows in an approximately linear manner. A small effect of the molecular weight is also observed on the narrowing of the relaxation spectrum, but the latter is much smaller than the former.