preparation of flame retardant polystyrene via bulk polymerization method and evaluation of its flammability properties

In this research in situ bulk polymerization method was employed to obtain the flame retardant polystyrene. For the flame retardancy of this polymer, the brominated compound was used as a flame retardant additive. The flammability of the polystyrene was evaluated using limiting oxygen index (LOI) and UL-94 tests. The results show that the synthesis flame retardant polystyrene via bulk polymerization method needs much less flame retardant additives than producing flame retardant composites.