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A product study of the nitroxide inhibited thermal polymerization of styrene

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Summary

The efficient free radical scavengers 1,1,3,3-tetramethylisoindolinyl 2-oxy and 2,2,6,6-tetramethylpiperidinyl-1-oxy (nitroxides) disappear in styrene at 100°C with near zero order kinetics but at rates which are some 20 times higher than the known rate of initiation of thermal polymerization in the absence of scavenger. A quantitative product analysis has shown that these inhibitors react by hydrogen abstraction from a thermally generated styrene dimer (1-phenyl-1,2,3,9-tetrahydronaphthalene) and to a minor extent by addition to the double bond of styrene monomer.

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Authors and Affiliations

  1. Division of Applied Organic Chemistry, C.S.I.R.O., G.P.O. Box 4331, 3001, Melbourne, Australia

    Graeme Moad, Ezio Rizzardo & David H. Solomon

Authors
  1. Graeme Moad
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  2. Ezio Rizzardo
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  3. David H. Solomon
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Moad, G., Rizzardo, E. & Solomon, D.H. A product study of the nitroxide inhibited thermal polymerization of styrene. Polymer Bulletin 6, 589–593 (1982). https://doi.org/10.1007/BF00255160

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  • DOI: https://doi.org/10.1007/BF00255160

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