Monodisperse Schäume:Herstellung und Verwendung als strukturiertes Medium für chemische Zweiphasenreaktionen

Abstract

Monodispersive foams are gas/liquid-dispersions of unique quality with exceptional physicochemical properties. A universal method for uniform bubble formation and continuous foam generation was developed and realised by static mixers consisting of microfluidic channels. Simultaneous control of bubble sizes and gas/liquid-composition of foam creates new perspectives for the generation of regular structured two-phase media with a singular reproducibility of phase distribution. Common processes of bubble formation, two-phase flows in microchannels and properties of monodispersive foams were experimentally studied. Spatiotemporal kinetics of gas/liquid-reactions were observed in structured bubble arrangements by implementation of chemical reactive species into gaseous and liquid phase of dispersions.