It also appears that the HSBRS with a bound antioxidaot and these modest hydrogenation levels can approach the thermal resistance of even very highly saturated (97%) HSBR (without antioxidant) (ref.
Secondarily, die incorporation of a polymer bound antioxidant into an emulsion SBR and subsequently into an HSBR does not interfere with the latex diimide reduction process or the ultimate generation of TPE properties.
In conclusion, we believe our observations concerning the benefits of bound antioxidants in HSBR hold important implications with regard to the quality and recyclability of TPES in general.
The DSC scans of HSBRs containing the bound antioxidant (0.
In contrast to the DSC thermogram shown in figure 1, all the HSBRS without the bound antioxidant also show a typical pattern (figure 2) with a much lower oxidative onset temperature and multiple broad exotherms.