ELASTOMERS AND PLASTICS Selective hydrogenated Styrene Butadiene Rubbers (HSBR): A realistic Approach towards 6PPD Reduction in Rubber Compounds

Hydrogenated styrene butadiene rubber (HSBR) produced by hydrogenating a styrene butadiene rubber (SBR). Compared to conventional SBR, HSBR offers several advantages, such as increased strength, toughness, and resistance to heat, aging, and chemicals

Hydrogenated styrene butadiene rubber (HSBR) is a type of synthetic rubber that is produced by hydrogenating a styrene butadiene rubber (SBR). The concept of hydrogenated polymers or rubbers is a well-known and well adapted concept in the industry. [1], [2] Hydrogenating the SBR results in saturation of the carbon-carbon double bonds of the 1,2 vinyl moieties and the 1,4 butadiene moieties [3], which enhances the stability and durability of the rubber. HSBR offers several advantages over non-hydrogenated SBR as such modification improves the mechanical properties of the rubber, such as increased strength, toughness, and resistance to heat, aging, and chemicals. [4] This enhanced performance is often related to the crystallinity of the HSBR. [5]