Brominated Polystyrene

Chemical formula:  88497-56-7
Application:（C₈H_5.3Br_2.7）n 
This flame retardant provides outstanding thermal stability and electrical performance. It is particularly suitable for engineering plastic applications such as polyesters(PET,PBT,PCT)and polyamides(nylons).It has outstanding thermal stability , it is an ideal choice for high temperature applications such as engineering plastics . Due to its stability , it can often be used where other flame retardants fail to survive . Due to its polymeric structure , it is nonblooming in all applications . Excellent electrical properties provide yet another reason to choosethis flame retardant for demanding engineering plastic 
applications.
Appearance:yellowish powder
Bromine content:66% min
Chlorine content:1.5%max
Melting point:260-320℃
Soft point:220-240℃
Volatile matter:0.2%max
Color:gardner(10% in MCB) 3.0max