10.18453/rosdok_id00001963 Nack, Annemarie Annemarie Nack http://d-nb.info/gnd/114132184X Universität Rostock 2017 540 Chemistry & allied sciences 2017 en http://purl.uni-rostock.de/rosdok/id00001963 urn:nbn:de:gbv:28-diss2017-0127-8 Field-induced changes of the mesostructure of ferrogels and the resulting changes of their viscoelastic properties are investigated. As a model system pNIPAM hydrogels containing anisotropic hematite particles are used. Hematite aligns in magnetic fields provoking an elastic deformation of the hydrogel. Particle-matrix interactions are analyzed via orientational distribution functions of the particles. Field-dependent viscoelastic properties are studied by means of rheological and RheoSAXS experiments. Employing XPCS, in external fields the diffusive motion of the particles is investigated.