Interactions in mixtures of colloid and polymer
نویسندگان
چکیده
2014 We report results of light scattering study of interactions in a mixture of a surfactantstabilized colloid and hydrogenated polyisoprene polymer. With a virial expansion the smallangle scattering intensity from the mixture is calculated as a function of colloid and polymer concentrations. Using the obtained formula we measured the mutual excluded volume between a polymer molecule and a colloidal particle, and extracted the second virial coefficient of the colloidal particles in the dilute polymer solution. This scheme of obtaining interaction parameters in the polymer-colloid mixture is capable of probing the changes of the interaction potential for the colloidal suspension due to the addition of free polymer, the so-called depletion effect. J. Phys. France 51 (1990) 2813-282? 15 DÉCEMBRE 1990,
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