Structure and position of Silica-core PNIPAM-shell hybrid microgels at liquid-air interfaces as a function of temperature and compression.
We plan to use neutron reflectometry to study silica-core D7-pNIPAM-shell hybrid microgels. The knowledge on the position of the inorganic core and the response of these particles to external stimuli as e.g. temperature are crucial to their many applications in optical and electronic devices. Furthermore, a better understanding of the out-of-plane behavior of these systems is crucial to understand the response of emulsion stabilized by microgels. We plan to use two different core size and different shell thickness. The use of D7-pNIPAM will increase the contrast giving more robust data measured using both D2O and air contrast marched water. The simultaneous fit of the data at different contrasts will give fundamental insight into the three-dimensional response of these systems. This information will be combined with Langmuir-Blodgett trough measurements and ex-situ atomic force microscopy measurements. The use of these different techniques will give a comprehensive description of the behavior of core-shell particles both in and out-of-plane.
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BOCHENEK Steffen; Armando Maestro; RICHTERING Walter; SCHMIDT Maximilian Marcel and Andrea Scotti. (2021). Structure and position of Silica-core PNIPAM-shell hybrid microgels at liquid-air interfaces as a function of temperature and compression.. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.9-12-587
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