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Head additon of radicals to methyl methacrylate

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Summary

Contrary to a recent report, radicals produced from benzoyl peroxide and diisopropyl peroxydicarbonate react with methyl methacrylate mainly by addition to the less substituted end of the double bond (tail addition). Benzoyloxy radicals do give head addition, but only to a small extent relative to tail addition (ratio 5∶66). With both initiators hydrogen abstraction from monomer is only a minor process (⩽1%). These results were obtained by analysis of the products formed when radicals are trapped by nitroxides.

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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, Victoria, Australia

    Matthew J. Cuthbertson, Graeme Moad, Ezio Rizzardo & David H. Solomon

Authors
  1. Matthew J. Cuthbertson
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  2. Graeme Moad
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  3. Ezio Rizzardo
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  4. David H. Solomon
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Cuthbertson, M.J., Moad, G., Rizzardo, E. et al. Head additon of radicals to methyl methacrylate. Polymer Bulletin 6, 647–651 (1982). https://doi.org/10.1007/BF00255168

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  • DOI: https://doi.org/10.1007/BF00255168

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