Rheological Behavior of Polymer/Styrene Blends that Emulate a Bulk High-Impact Polystyrene Process

CARLA LUCIANI; RAMÓN DÍAZ DE LEÓN; GRACIELA MORALES; DIANA ESTENOZ; GREGORIO MEIRA

Los Cocos (Argentina)

Simposio; III Simposio Binacional Argentino-Chileno - ARCHIPOL 2005; 2005

In this work, an experimental and theoretical study for estimating the apparent viscosity of polystyrene/polybutadiene/styrene-butadiene block copolymer/styrene blends is presented. The flow curve of a set of 24 blends was studied, emulating conversion between 10 and 50%. The simulation agreed very well with measurements. This contribution must be considered as a first step toward the aim of theoretically estimating the phase inversion period along a bulk polymerization of St in the presence of a rubber.