Synthesis of Polystyrene-Rubber Waterborne Nanoparticles by Miniemulsion Polymerization

RONCO, L.I.; MINARI, R.J.; VEGA, J.R.; GUGLIOTTA, L.M.

Granada

Congreso; EPF 2011 - XII Congress of the Specialized Group of Polymers (GEP); 2011

In this work, the miniemulsion polymerization is used to synthesize waterborne PS/PB based-rubber (anionic PB and styrene-butadiene random copolymer: SBR) nanocomposites; and the effect of the process variables and rubber architecture was investigated. The effect of Mw and rubber composition was studied in order to produce compatibilized nanoparticles. The employment of low Mw SBR (a rubber more compatible with PS than PB) allows the achievement of higher droplets nucleation efficiency, with minimum phase separation.