Phase behaviour of colloidal superballs mixed with non-adsorbing polymers
نویسندگان
چکیده
منابع مشابه
Phase behaviour of a dispersion of charge-stabilised colloidal spheres with added non-adsorbing interacting polymer chains.
We present a theory for the phase behaviour of mixtures of charge-stabilised colloidal spheres plus interacting polymer chains in good and theta -solvents within the framework of free-volume theory. We use simple but accurate combination rules for the depletion thickness around a colloidal particle and for the osmotic pressure up to the semi-dilute concentration regime. Hence, we obtain express...
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We develop a theoretical model to describe structural effects on a specific system of charged colloidal polystyrene particles, upon the addition of non-adsorbing PEG polymers. This system has previously been investigated experimentally, by scattering methods, so we are able to quantitatively compare predicted structure factors with corresponding experimental data. Our aim is to construct a mode...
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Recent advances in colloidal synthesis make it possible to generate a wide array of precisely controlled, non-spherical particles. This provides a unique opportunity to probe the role that particle shape plays in the dynamics of colloidal suspensions, particularly at higher volume fractions, where particle interactions are important. We examine the role of particle shape by characterizing both ...
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torting the helical structure of the phase) and the nematic phase develops when the equilibrium pitch of the cholesteric phase becomes larger than the sample thick ness. This transition is first order and can easily be observed when approaching a smectic phase, because the cholesteric pitch diverges at this transition. In this way, it is possible to observe the growth of the cholesteric phase ...
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We have developed a self-consistent field theory of the effective interactions between nano-colloids mediated by adsorbing and non-adsorbing polymers. By making use of this theory, we have calculated the colloid immersion energy and the potential of the polymer-mediated forces for the above cases of polymer adsorption. On the basis of the obtained results for the polymer-mediated potentials, we...
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ژورنال
عنوان ژورنال: The European Physical Journal E
سال: 2018
ISSN: 1292-8941,1292-895X
DOI: 10.1140/epje/i2018-11719-3