The 9th International Conference on Multiscale Materials Modeling

Presentation information

Symposium

H. Multiscale Mechanics of Polymers, Soft Matter and Network Materials

[SY-H3] Symposium H-3

Wed. Oct 31, 2018 9:45 AM - 11:00 AM Room9

Chair: Hansohl Cho(Los Alamos National Laboratory, United States of America)

[SY-H3] Structural properties of mixtures of stars polymers and long chains

Emanuele Locatelli1, Daniele Parisi2,3, Maria Merola2, Domenico Truzzolillo4, Mario Gauthier5, Christos N. Likos1, Dimitris Vlassopoulos2,3 (1.Faculty of Physics, University of Vienna, Austria, 2.Institute of Electronic Structure and Laser, FORTH, Greece, 3.Department of Materials Science and Technology, University of Crete, Greece, 4.Laboratoire Charles Coulomb, UMR 5221 CNRS - Universitè de Montpellier, France, 5.Faculty of Science, University of Waterloo, Canada)

We employ a novel coarse-graining approach[6], to study star-chain mixtures[1-4], in the limit of long chains. The coarse-grained approach is based on the calculation of the effective interaction between a star polymer and a short chain of length Nc =10 at infinite dilution. A multi-blob-like approach is then employed to coarse-grain chains of arbitrary length Nc . We study mixtures of star polymer and linear chains in the protein limit, i.e. when q = Rhc/Rhs >1 . We find that the addition of linear chains makes the star fluid more structured, confirming experimental observation obtained through rheological measurements.
[1] E. Stiakakis, et al. Physical Review Letters, (2002).
[2] E. Stiakakis, et al. Europhysics Letters, (2005).
[3] M. Camargo and C.N. Likos. Physical Review Letters, (2010).
[4] B. Lonetti, et al. Physical Review Letter, (2011).
[5] C. Pierleoni, B. Capone, and J.P. Hansen. Journal of Chemical Physics, (2007).
[6] Locatelli, B.Capone and C.N. Likos. Journal of Chemical Physics (2016)