Coarse-graining of ionic microgels: Theory and experiment
- Author(s)
- Jonas Riest, Priti Mohanty, Peter Schurtenberger, Christos Likos
- Abstract
In this work, we discuss the statistical mechanics of many-body systems consisting of electrically charged microgels, and we show that their collective behavior is determined by an interplay between the screened electrostatic and the elastic contributions to their effective interaction potential. The former is derived by means of a statistical-mechanical approach due to Denton [A. R. Denton, Phys. Rev. E 67, 011804 (2003)], and it includes the screened electrostatic potential between penetrable spheres and the counterion entropic contribution. The latter is based on the Hertzian model of the theory of elasticity. Comparisons with experimental results demonstrate the realistic nature of the coarse-graining procedure, which makes it possible to put forward theoretical predictions on the phase diagram of ionic microgels and on the behavior of soft, neutral microgels under confinement in narrow pores.
- Organisation(s)
- Computational and Soft Matter Physics
- External organisation(s)
- Lund University
- Journal
- Zeitschrift für Physikalische Chemie / International Journal of Research in Physical Chemistry and Chemical Physics
- Volume
- 226
- Pages
- 711-735
- No. of pages
- 25
- ISSN
- 0942-9352
- DOI
- https://doi.org/10.1524/zpch.2012.0258
- Publication date
- 2012
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 103023 Polymer physics, 103036 Theoretical physics, 103015 Condensed matter, 103029 Statistical physics
- Portal url
- https://ucrisportal.univie.ac.at/en/publications/0fed4c34-10e8-4aaa-82a0-a289b27e2aff