Re-orientation of polymer micelles under shear at the liquid solid interface
We request beamtime at ILL to explore the effects of surface energy and shear on the ordering in polymer micellar crystals. Utilizing Neutron Reflectivity (NR) and Grazing Incidence Small Angle Neutron Scattering (GISANS), we aim to understand how different surface termination, shear rates and temperatures impact the crystalline structure vertically and horizontally. This will be able to connect bulk effects with much less studied surface effects. Our study investigates the surprising reduction in specular reflected intensity of Bragg peaks at low shear rates, possibly due to surface-induced lattice alignment. We will deposit self-assembled monolayers on silicon wafers to create controlled surfaces. Data will be collected across various temperatures and shear rates using an Anton Paar rheometer, focusing on the region of small shear rates. Combining NR and GISANS measurements, our experiment will shed light on the complex behavior of F127 micellar crystals, which is a material frequently used across a variety of applications, including tissue engineering, drug delivery systems or lubrication.
The data is currently only available to download if you are a member of the proposal team.
The recommended format for citing this dataset in a research publication is in the following format:
GUNTER Tim; Javier Carrascosa-Tejedor; GUTFREUND Philipp; P. Sánchez-Puga; A.S. Tejasvi and WOLFF Maximilian. (2024). Re-orientation of polymer micelles under shear at the liquid solid interface. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.9-10-1809
This data is not yet public
This data is not yet public
ILL has partnered with DataCite as the registration agency
for data persistent identifiers.