Summary
The efficiency of polyolefine melt stabilizer 2, 2′-thiobis-(4,6-di-tert.butylphenol) (I) as a hydroperoxide decomposing antioxidant was studied under model conditions.tert.Butylhydroperoxide was used to simulate the reaction with polypropylene hydroperoxide. The reaction was performed at 85°C in chlorobenzene solution. Decomposition of tert.butylhydroperoxide by I and formation of the sulphoxide II and the sulphone III from sulphide I were followed quantitatively. Formation of small amounts of effective peroxidolytic species from II or III, responsible for acceleration of hydroperoxide decomposition was considered.
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Than Son, T., Rotschová, J. & Pospíšil, J. Antioxidants and stabilizers. Polymer Bulletin 9, 121–124 (1983). https://doi.org/10.1007/BF00275578
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DOI: https://doi.org/10.1007/BF00275578