Adsorption characteristics of Janus tadpole polymers

Autor(en)

Benedikt Vitecek, Christos N. Likos, Ioana C. Gârlea

Abstrakt

The shape of Janus particles is directly connected to their adsorption behavior. Janus tadpole polymers offer a unique topological architecture that includes competition between entropic, enthalpic, and topological terms in the adsorption free energy; accordingly, non-trivial adsorption behavior patterns are expected. We study the surface adsorption of Janus tadpole polymers by means of Monte Carlo simulations, finding that, depending on which part of the tadpole polymers is preferentially adsorbing on the surface, very different types of behavior for both the adsorbed polymeric phase and of the brush arise. The adsorbed phase and the brush mutually influence each other, leading to a variety of phenomena such as nematic ordering of the adsorbed stiff tadpole tails and intriguing changes in the territoriality of adsorbed ring polymers on the surface. We analyze in detail our findings, revealing the mechanisms behind the organization and ordering, and opening up new possibilities to tune and control the structure of such systems.

Organisation(en)

Computergestützte Physik und Physik der Weichen Materie

Externe Organisation(en)

Universität Wien

Journal

Journal of Chemical Physics

Band

160

Anzahl der Seiten

13

ISSN

0021-9606

DOI

https://doi.org/10.1063/5.0213433

Publikationsdatum

06-2024

Peer-reviewed

Ja

ÖFOS 2012

103023 Polymerphysik

ASJC Scopus Sachgebiete

Allgemeine Physik und Astronomie, Physical and Theoretical Chemistry

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/0baaaa8a-25c5-43fa-86c4-41e36fb46f61