6533b7cefe1ef96bd1256ee0

RESEARCH PRODUCT

Development of core-shell colloids to study self-diffusion in highly concentrated dispersions

S. KirschA. KasperHans SillescuF. RenthEckhard Bartsch

subject

chemistry.chemical_classificationQuantitative Biology::BiomoleculesSelf-diffusionMaterials scienceShell (structure)PolymerCondensed Matter::Soft Condensed MatterCore (optical fiber)ColloidchemistryDynamic light scatteringChemical physicsSPHERESRefractive index

description

To study single particle motion in highly concentrated colloidal dispersions, a host-tracer colloid system was developed, consisting of crosslinked polymer micronetwork spheres placed in a good solvent. The host colloid is made invisible to the experimental probe by matching its refractive index to that of the solvent. For the tracer particles a core-shell structure was chosen to ensure the interaction potential to be identical to that of the host particles. Therefore the shell was made of the same polymer as the host. The core differs in refractive index from the solvent and is therefore visible due to scattered light.

yearjournalcountryeditionlanguage
2007-12-10
https://doi.org/10.1007/bfb0115771