Investigating the Synergistic Anionic/Nonionic Surfactant Interaction on Nanoparticle Synthesis with Solvent-Free Extrusion Emulsification

This paper examines different binary mixtures of anionic/nonionic surfactants using a new technique known as solvent-free extrusion emulsification (SFEE) to control the surface charge in resulting nanosized polyester particles. Five similar nonionic surfactants with only minor structural differences from one another, along with an anionic surfactant (Calfax DB-45), were considered. The optimal hydrophilic end for the nonionic species was found …