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Amphoteric microgels for uptake and release of polyelectrolytes
The project A3 focuses on microgels that are able to change their charge as function of pH (and temperature). We synthesize new microgels, which have a defined localization of charged groups inside the microgels and different architectures, and investigate the swelling and collapse of the microgels with possible shape variations as function of different external stimuli. In addition we study the interaction of these microgels with polyelectrolytes. We determine the composition of the microgel-polyelectrolyte complexes as well as their structure and sensitivity to pH, salt concentration and temperature. We will introduce hollow microgels as new structural motif and investigate the uptake and release of charged species by the hollow microgels. The project combines two approaches: experiments (focusing on scattering techniques) and computer simulations.
Principle Investigators:
Pich, Andrij, Prof. Dr.
Institute of Technical und Macromolecular Chemistry
RWTH Aachen University
+49 241 80 23350
Richtering, Walter, Prof. Dr.
Institute of Physical Chemistry
RWTH Aachen University
+49 241 80 94760
Potemkin, Igor, Prof. Dr.
DWI – Leibniz Institute for Interactive Materials
and M.V. Lomonosov Moscow State University
+49 241 80 23341