Reactive surfactants in heterophase polymerization. XXV. Core-shell lattices stabilized with a mixture of maleic anionic and styrenic nonionic surfactants

Core-shell lattices with a polystyrene core and a polystyrene/butyl acrylat e shell with more than 40% solid contents were produced using a combination of sodium dodecyl maleate hemiester as anionic surfactant and styrenic blo ck copolymer of butylene oxide and ethylene oxide as nonionic surfactant. S table lattices able to resist rather high concentrations of electrolytes ca n be obtained, provided a careful protocol of the addition of surfactants i s used. (C) 1999 John Wiley & Sons, Inc. J Polym Sci A: Polym Chem 37: 2251 -2262, 1999.