Using poly 1-hexene for improving HIPS properties

Standard commercial HIPS and even some environmental stress cracking resistance (ESCR) grades of HIPS are prone to undergo environmental stress cracking, when used in contact with a specific aggressive chemical agent and even in natural outdoor conditions. To overcome this drawback, new kind of high impact polystyrene (HIPS) was prepared by radical polymerization of styrene in the presence of different amounts of synthesized poly1-hexene (PH) as impact modifier (HIPS/PH) and compared with conventional high impact polystyrene with polybutadiene (HIPS/PB) as rubber phase in terms of impact strength and durability

Keywords:

High impact polystyrene , poly1-hexene , impact modifier , polybutadiene