Abstract
Viscoelastic properties of highly concentrated toluene-in-water emulsions stabilized by mixtures of bovine serum albumin and a nonionic surfactant, polyoxyethylene(20)sorbitan monooleate, are studied by a dynamic method in a wide frequency range. It is shown that an increase in the relative content of the surfactant results in a suppression of the system elasticity and a decrease in the relaxation time. A direct correlation is found between the dynamic and steady rheological characteristics of the systems under examination. The latter fact confirms indirectly that the viscoelasticity of the emulsions is due to the presence of the high-molecular-mass component in interfacial layers.
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