Author/Authors :
Pérez-Carrillo، نويسنده , , L.A. and Puca، نويسنده , , M. and Rabelero، نويسنده , , Diego M. Flores Meza، نويسنده , , K.E. and Puig، نويسنده , , J.E. and Mendizلbal، نويسنده , , E. and Lَpez-Serrano، نويسنده , , F. and Lَpez، نويسنده , , R.G.، نويسنده ,
Abstract :
The effects of particle size and polymer location (core or shell) on the mechanical properties of core/shell materials composed of polystyrene (PST) and poly(butyl acrylate) (PBA) made by a two-stage emulsion or microemulsion polymerization process are reported. Low-seed content (LSC) latexes were made by batch polymerization in microemulsions stabilized with DTAB in the presence of an organic salt (dibutyl phosphite). High-seed content (HSC) latexes were produced by microemulsion or emulsion polymerization in semi-continuous process. These latexes were subsequently used to form core/shell particles of PST/PBA or PBA/PST and their mechanical properties were examined and compared. Our results indicate that core/shell particle size and the location of the polymers have important effects on the mechanical properties.
