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CPP: Fachverband Chemische Physik und Polymerphysik
CPP 56: Molecular and Polymer Dynamics, Friction and Rheology I
CPP 56.2: Vortrag
Freitag, 13. März 2026, 11:15–11:30, HÜL/S386
The analytical and numerical investigation of star-shaped copolymers with three arms in confined geometries — •Zoriana Danel1, Joanna Halun2, and Paweł Karbowniczek1 — 1Cracow University of Technology, Poland — 2Institute of Nuclear Physics, Poland
The influence of star copolymer topology on the depletion interaction potentials, the depletion forces, the radius of gyration and the monomer density profiles is investigated analytically and numerically. The method of analytical calculation of the dimensionless depletion interaction potentials and the dimensionless depletion forces for a dilute solution of ideal star-shaped copolymers with three legs in combination f=2-1 in a Θ-solvent confined in a slit geometry of two parallel walls with repulsive surfaces and for the case of one repulsive and the other inert surface is proposed. Besides, molecular dynamic simulations of a dilute solution of star-shaped copolymers in a good solvent with three number of legs with N=801 monomers (300+300+200+1) for combination f=2-1 and N=701 monomers (300+200+200+1) for combination f=1-2 confined in a slit with different boundary conditions are performed and the results of the monomer density profiles for the above mentioned cases are obtained for the narrow and wide slit region. Furthermore, the numerical calculations of the radius of gyration for star-shaper copolymers in combination f=2-1 and f=1-2 are performed. The obtained results are interesting from scientific and practical point of view, because of their potential application in materials engineering, nano-technology, biotechnology and medicine.
Keywords: polymer physics; surface critical phenomena; theory; soft matter physics; molecular dynamic simulations