Regensburg 2016 – wissenschaftliches Programm

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DY: Fachverband Dynamik und Statistische Physik

DY 60: Interfaces and Thin Films II (joint session CPP/DY, organized by CPP)

DY 60.10: Vortrag

Freitag, 11. März 2016, 12:00–12:15, H51

Depletion interaction potentials for linear and ring polymer chains in a solution of mesoscopic colloidal particles of big size — •Piotr Kuterba¹ and Zoryana Usatenko² — ¹Jagiellonian University, Cracow — ²Institute of Physics, Cracow University of Technology, Cracow

Investigations of a dilute solution of linear and ring polymer chains immersed in a confined geometry of two mesoscopic colloidal particles of big size and between wall and colloidal particle for different boundary conditions, such as: Dirichlet-Dirichlet, Neumann-Neumann and Dirichlet-Neumann which correspond to the situation of two repulsive walls, two inert walls and for the mixed case of one repulsive and one inert wall were performed. Taking into account the well known polymer - magnet analogy developed by de Gennes and Derjaguin approximation for the case of big colloidal particles the calculations of the correspondent depletion interaction potentials were performed for all above mentioned cases. The obtained results indicate, that introducing the curvature for two surfaces leads to the reducing of the correspondent depletion interaction potentials. The obtained results are in good qualitative agreement with previous theoretical investigations.