Synthesis of core-shell particles by batch emulsion polymerization of styrene and octavinyl polyhedral oligomeric silsesquioxane

A new composite OVPOSS-PS was prepared by batch emulsion polymerization initiated by potassium persulfate. The structure of OVPOSS-PS composite was well characterized by FTIR, ¹H NMR, ²⁹Si NMR and XRD. The results indicated that OVPOSS could be incorporated into the PS matrix by the polymerization. TEM image shown that the composite particles were in regular shape with a uniform size and have a core-shell structure. Results of XRD revealed that POSS was well dispersed in the composites. The thermal properties were investigated by DSC and TGA. The data indicated that the incorporation of POSS can apparently improve the thermal stability of PS.