Structure of Silica/Polymer Hybrid Nanoparticles - Control by pH and Length of the Attached Polymer
In this project we want to study the structure of polymeric shells covalently bound to the surface of silica nanoparticles (SiNPs). Here we employ well defined SiNPs in the size range of 10-100 nm with polymer shells of cationic PDMAEMA or anionic PAA, with polymer chains of different length (DP = 10-150). Both polymers are pH sensitive and we are interested in how the length of the polymer chain and pH affect the structure of these hybrid nanoparticles, i. e., the denseness of the polymer layer and how softness and range of the interaction potential of these nanoparticles change. Particularly interesting is the detailed structure of the polymer shell which shall be studied by contrast variation (matching the silica core). This is a central point for subsequent studies of the interaction of these particles with membranes and also to use them as building blocks in colloidal assembly.
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GRADZIELSKI Michael; ALTIN Burcu; Marek Bekir; BRUECKNER Christoph and SCHWEINS Ralf. (2016). Structure of Silica/Polymer Hybrid Nanoparticles - Control by pH and Length of the Attached Polymer. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.9-12-396
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