Abstract
A dynamic rheological study of sodium deoxycholate gels was carried out within the linear viscoelastic region. The effects of the oscillatory frequency f, sodium deoxycholate concentration, pH, temperature, and ionic strength (NaCl) were studied. The G‘ ∝ f n relationship, the creep-recovery experiments, and the frequency−temperature superposition principle strongly suggest that the interactions in the gel are physical in nature and that its mechanical behavior can be explained by a simple relaxation mechanism. It is concluded that the hydrogen bonds are the molecular forces involved in the formation, relaxation, and strength of the gel.
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