title: Emulsion polymerization synthesis of cationic polymer latex in an ultrasonic field.
abstract: Poly(methyl methacrylate) and poly(butyl acrylate) lattices have been synthesized under ultrasonic irradiation in the presence of a cationic surfactant, dodecyltrimethylammonium chloride. The polymerization of oil-in-water emulsions of monomeric species was carried out at 30 degrees C (+/-5 degrees C) in the absence of a chemical initiator. The lattices were formed as stable dispersions with particle diameters spanning the range of 40-150 nm and with polymer molecular weights greater than 10(6) g mol(-1). The results obtained strongly support a polymerization process involving a miniemulsion system, in which continuous nucleation of particles takes place throughout the monomer to polymer conversion reaction.
authors.affiliation: Particulate Fluids Processing Center, School of Chemistry, The University of Melbourne, Victoria, 3010, Australia.
authors.forename: Melanie
authors.initials: M
authors.lastname: Bradley
authors.forename: Franz
authors.initials: F
authors.lastname: Grieser