Rheological and shearing conditions for the preparation of monodisperse emulsions

Monodisperse emulsions can be obtained by shearing a crude polydisperse one . The aim of this paper is to discover the required conditions for droplet fragmentation and resulting monodispersity, independently of the chemical n ature of the system. We particularly examine (i) the role of the initial em ulsion viscoelasticity and (ii) the nature of the applied shear. Taking int o account these features, we show a large variety of monodisperse materials that are easily producible in reasonable quantity.