Janus Dimers at Liquid-Liquid Interfaces

M Borowko and E Slyk and S Sokolowski and T Staszewski, JOURNAL OF PHYSICAL CHEMISTRY B, 123, 4139-4147 (2019).

DOI: 10.1021/acs.jpcb.9b02467

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: orientation ally 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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