The influence of the magnetic filler concentration on the properties of a microgel particle: zero-field case

Author(s)
Elena Minina, Pedro A. Sánchez, Christos Likos, Sofia Kantorovich
Abstract

In this contribution we present a molecular dynamics study of a microgel colloidal particle filled with magnetic nanobeads. The microgel is constructed of crosslinked polymer chains, some beads of which are magnetic. We vary the concentration of magnetic particles and the degree of crosslinking in the microgel to analyse the influence of both factors on the radius of gyration, microstructure and the initial magnetic susceptibility of our soft magnetic colloid. We show that even for a loosely crosslinked microgel, the concentration of magnetic filler must be rather high in order for the magnetic dipolar interactions to affect the shape and the internal structure of the soft colloid.

Organisation(s)
Computational and Soft Matter Physics
External organisation(s)
Ural Federal University
Journal
Journal of Magnetism and Magnetic Materials
Volume
459
Pages
226-230
No. of pages
5
ISSN
0304-8853
DOI
https://doi.org/10.1016/j.jmmm.2017.10.107
Publication date
07-2017
Peer reviewed
Yes
Austrian Fields of Science 2012
103015 Condensed matter, 103023 Polymer physics, 103018 Materials physics
Keywords
ASJC Scopus subject areas
Electronic, Optical and Magnetic Materials, Condensed Matter Physics
Portal url
https://ucrisportal.univie.ac.at/en/publications/dcb02874-7a61-46d6-9428-705f6cf9a447