Morbidelli M. – TechConnect Briefs

Structural Control of Porous Polymeric Materials through Magnetic Gelation

Furlan M., Lattuada M., Morbidelli M., ETH Zürich, CH

A novel procedure, called magnetic gelatio, is introduced to prepare porous polymeric materials with controlled anisotropic structure. The materials are obtained by destabilizing aqueous dipsersions of magnetic polymer nanoparticles in the presence of magnetic fields, [...]

Influence of structural forces and contact hysteresis on flow-induced aggregation and breakage of polymer nanoparticles

Moussa A.S., Ehrl L., Soos M., Lattuada M., Morbidelli M., ETH Zürich, CH

Static light scattering was used on-line to monitor the flow-induced aggregation of surfactant-free polystyrene latexes in a stirred tank. Various latexes with primary particles diameters ranging between 100 and 300 nm, different charge groups, different [...]

Scattering properties of dense clusters of nanoparticles

Lattuada M., Ehrl L., Soos M., Morbidelli M., ETH Zürich, CH

The use of light scattering or laser diffraction techniques to characterize dense clusters such as those generated in shear induced coagulations is highly desirable. However, a major obstacle in the effective utilization of this technique [...]

Generalized model for the aggregation rate of colloidal nanoparticles and clusters induced by shear in the presence of repulsive interactions

Lattuada M., Morbidelli M., ETH Zürich, CH

Coagulation of colloidal nanoparticles in the presence of shear is a key step in processing of many particulate materials, polymeric nanoparticles, food products etc. In the case of charged nanoparticles, coagulation is usually carried out [...]