Compatibilization of immiscible poly(propylene)/polystyrene blends using clay

Inorganic clay was investigated as a compatibilizer for immiscible poly(propylene/polystyrene blends. A substantial decrease in the number of polystyrene particles was seen after adding small amounts of an organically treated clay 2-5 wt.-%) to the blends. A possible mechanism for this kind of compatibilization is discussed, but these unique and completely new findings need further verification.