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Janus Dimers at Liquid-Liquid Interfaces
M Borówko1, E Słyk1, S Sokołowski1
1Department for the Modelling of Physico-Chemical Processes , Maria Curie-Skłodowska University , 20-031 Lublin , Poland.
Abstract:
We study the impact of selected parameters on the behavior of Janus-like dimers at liquid-liquid interface. The equilibrium orientation and the adsorption depth of a single Janus dimer are calculated using a simple phenomenological method. We have also performed molecular dynamics simulations for different numbers of Janus dimers trapped at the interface between two partially miscible Lennard-Jones fluids. The particles with different wettabilities of both parts of Janus dimers are considered. Depending on the assumed energy parameters, we observe various structures: orientationally ordered monolayers, fractal-like aggregates, compact clusters, and ordered multilayers containing alternately arranged layers built of Janus particles and molecules of the fluids.
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