Dresden 2026 – wissenschaftliches Programm
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CPP: Fachverband Chemische Physik und Polymerphysik
CPP 20: Complex Fluids and Soft Matter (joint session DY/CPP)
CPP 20.3: Vortrag
Dienstag, 10. März 2026, 10:00–10:15, ZEU/0160
Soft colloidal monolayers under drying conditions — •Kai Luca Spanheimer1, Maret Ickler2, Julian Ringling3, Nicolas Vogel2, Matthias Karg4, and Hartmut Löwen1 — 1Insitut für Theoretische Physik II, Heinrich-Heine-Universität, 40225 Düsseldorf, Germany — 2Institute of Interfaces and Particle Technology, Friedrich-Alexander University, Erlangen, Germany — 3Physikalische Chemie I: Kolloide und Nanooptik Heinrich-Heine-Universität, 40225 Düsseldorf, Germany — 4Institut für Chemie, Martin-Luther-Universität Halle-Wittenberg, 06099 Halle, Germany
Langmuir-Blodgett deposition is a well established technique in research and industry. Even though, there still are effects in this process that are not yet explored from a theoretical standpoint. It is usually assumed that the deposited pattern is identical with the one appearing at the water-air interface. In recent experimental studies, strong reorganization during the drying of soft colloidal monolayers has been observed [1]. Capillary forces during drying are known to change nanoscopic structures, sometimes even leading to their destruction. To model these processes we propose a combination of overdamped particle dynamics coupled to dewetting dynamics of an evaporating liquid film. The patterns produced by this model fit those observed in experiment. This theoretical approach allows exploration of the drying dynamics. Thereby we gain new insights into the drying process and makes experimental results produced with Langmuir-Blodgett deposition more reliable.
[1] K. Kuk, et al: Adv. Sci., 11, 2406977 (2024).
Keywords: Colloids; Drying; Capillary Interactions; Microgels; Langmuir-Blodgett Deposition