Rheological properties of associates of ionic monomers with micelles of oppositely charged surfactants |
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| Authors: | Yu V Shulevich S O Ilyin Е G Dukhanina A S Ozerin D S Tutaev A V Navrotskii V G Kulichikhin I A Novakov |
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| Institution: | 1.Volgograd State Technical University,Volgograd,Russian Federation;2.A. V. Topchiev Institute of Petrochemical Synthesis of Russian Academy of Sciences,Moscow,Russian Federation |
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| Abstract: | Rheological properties of associates formed by interaction of trimethylmethacryl-oxyethyl]ammonium methyl sulfate with sodium octyl- and dodecyl sulfate micelles, as well as associates of sodium 4-styrenesulfonate with dodecyltrimethylammonium bromide micelles in aqueous solutions were studied by steady shear and oscillatory (dynamic) shear measurements with Fourier transform. It was shown that viscosity depends on the composition and achieves maximum value at equimolar ratio of components for two of studied systems. The extremal dependence of the viscosity vs. composition is not observed for systems with sodium octyl sulfate due to weak interactions between the components. The systems exhibiting the anomalous dependencies of concentration to viscosity are viscoelastic fluids due to the physical entanglements between the associates. |
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