Diisopropylbenzene monohydroperoxide

Commercially, autoxidation is used in the production of a-cumyl hydroperoxide, tert-huty hydroperoxide, -diisopropylbenzene monohydroperoxide, -diisopropylbenzene dihydroperoxide, -menthane hydroperoxide, pinane hydroperoxide, and ethylbenzene hydroperoxide. 

This technique has been further modified by Urwin (222) who polymerized styrene in the presence of the -diisopropylbenzene monohydroperoxide as initiator and cumenyl mercaptan (Me2CH-C6H4-CHgSH) as transfer agent. All the cumenyl end groups are then peroxidized and used as initiator for the emulsion polymerization of the second monomer (methyl methacrylate) in the presence of ferrous ion. Almost pure block copolymers can be obtained by this improved method. 

Synonyms Diisopropylbenzene hydroperoxide solution Diisopropylbenzene monohydroperoxide Diisopropyl phenyl hydroperoxide... 

Cold emulsion polymerization uses typical emulsion recipes containing various combinations of t-dodecyl mercaptan, diisopropylbenzene monohydroperoxide, potassium pyrophosphate, ferrous sulfate, the tetrasodium salt of ethylenedi-amine-tetraacetic acid (EDTA), and sodium formaldehyde sulfoxylate in an aqueous soap emulsion at a reaction temperature of only 5 °C. 

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