CHEMILUMINESCENCE ASSESSMENT OF OXIDATIVE STABILITY IN BARIUM TITANATE–FILLED STYRENE-BASED COMPOSITES FOR MEDICAL APPLICATIONS

This study evaluates the oxidation states of formulations comprising styrene-butadiene-styrene (SBS), styrene-ethylene-butadiene-styrene (SEBS), and styrene-isoprene-styrene (SIS). The implementation of two chemiluminescence methods, isothermal and nonisothermal, allows depiction of the evolution of oxidation states as a function of the inorganic filler, BaTiO3, added at three concentrations: 1, 3, and 5 wt%. The conversion of hydroperoxides into stable oxygenated products reveals the filler's protective activity. This feature, the improvement of durability, recommends the studied formulation as an appropriate product for medical engineering.