Berlin 2018 – wissenschaftliches Programm
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CPP: Fachverband Chemische Physik und Polymerphysik
CPP 51: Hydrogels and Microgels
CPP 51.3: Vortrag
Mittwoch, 14. März 2018, 15:30–15:45, C 264
Studying properties of microgels: from fuzzy to core-shell model — •Elena Minina1,2, Sofia Kantorovich1,2, and Christos Likos1 — 1University of Vienna, Vienna, Austria — 2Ural Federal University, Ekaterinburg, Russian Federation
Microgels are spherical colloidal particles consisting of the polymer network. Due to their nature, microgels are able to swell and shrink as a response to their external environment. This ability makes them promising materials for many applications including drug delivery and design of artificial muscles. The desire to control microgels, therefore, has motivated studying their properties.
In this work, we study microgels properties by means of molecular dynamics computer simulations. To this aim, we developed coarse-grained models of fuzzy and core-shell microgels based on the bead-spring model and random cross-linking procedure. Our models capture the swelling behaviour of microgels that we verified by embedding microgels in solvents of different quality. To examine structural properties of microgels, we focus on the polymer network analysis and density profiles of microgels of different size and with various fraction of homogeneously distributed cross-linkers inside the core and on the shell for core-shell microgels.