Mixing Linear Polymers with Rings and Catenanes: Bulk and Interfacial Behavior
- Author(s)
- Roman Staňo, Christos N. Likos, Sergei A. Egorov
- Abstract
We derive and parameterize effective interaction potentials between a multitude of different types of ring polymers and linear chains, varying the bending rigidity and solvent quality for the former species. We further develop and apply a density functional treatment for mixtures of both disconnected (chain-ring) and connected (chain-polycatenane) mixtures of the same, drawing coexistence binodals and exploring the ensuing response functions as well as the interface and wetting behavior of the mixtures. We show that worsening of the solvent quality for the rings brings about a stronger propensity for macroscopic phase separation in the linear-polycatenane mixtures, which is predominantly of the demixing type between phases of similar overall particle density. We formulate a simple criterion based on the effective interactions, allowing us to determine whether any specific linear-ring mixture will undergo a demixing phase separation.
- Organisation(s)
- Computational and Soft Matter Physics, Research Platform Erwin Schrödinger International Institute for Mathematics and Physics
- External organisation(s)
- University of Virginia
- Journal
- Macromolecules
- Volume
- 56
- Pages
- 8168-8182
- No. of pages
- 15
- ISSN
- 0024-9297
- DOI
- https://doi.org/10.1021/acs.macromol.3c01267
- Publication date
- 10-2023
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 103023 Polymer physics
- ASJC Scopus subject areas
- Organic Chemistry, Polymers and Plastics, Inorganic Chemistry, Materials Chemistry
- Portal url
- https://ucris.univie.ac.at/portal/en/publications/mixing-linear-polymers-with-rings-and-catenanes-bulk-and-interfacial-behavior(dc3d2fff-f348-4008-a6da-ccc7188fda37).html