Kinetics and mechanism of grafting styrene onto natural rubber in emulsion polymerization using cumene hydroperoxide-tetraethylenepentamine as redox initiator

► The graft copolymerization of styrene onto NR particles is of interest. ► Changing molar ratio of CHPO and TEPA for the polymerization is also investigated. ► The monomer consumption rate as a function of initiator and emulsifier is determined.