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Issue 47, 2013
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Thermodynamic perturbation theory for self assembling mixtures of multi-patch colloids and colloids with spherically symmetric attractions

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Abstract

In this paper we extend our previous theory [B. D. Marshall and W.G. Chapman, J. Chem. Phys., 2013, 139, 104904] for mixtures of single patch colloids (p colloids) and colloids with spherically symmetric attractions (s colloids) to the case that the p colloids can have multiple patches. The theory is then applied to the case of a binary mixture of bi-functional p colloids which have an A and B type patch and s colloids which are not attracted to other s colloids and are attracted to only patch A on the p colloids. This mixture reversibly self assembles into both colloidal star molecules, where the s colloid is the articulation segment and the p colloids form the arms, and free chains composed of only p colloids. It is shown that temperature, density, composition and relative attractive strengths can all be varied to manipulate the number of arms per colloidal star molecule, average arm length and the fraction of chains (free chains + arms) which are star arms.

Graphical abstract: Thermodynamic perturbation theory for self assembling mixtures of multi-patch colloids and colloids with spherically symmetric attractions

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Publication details

The article was received on 17 Sep 2013, accepted on 18 Oct 2013 and first published on 21 Oct 2013


Article type: Paper
DOI: 10.1039/C3SM52451E
Citation: Soft Matter, 2013,9, 11346-11356
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    Thermodynamic perturbation theory for self assembling mixtures of multi-patch colloids and colloids with spherically symmetric attractions

    B. D. Marshall and W. G. Chapman, Soft Matter, 2013, 9, 11346
    DOI: 10.1039/C3SM52451E

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