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Propagation rates in the anionic polymerization of α-methyl-α-butyl-β-propiolactam

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Summary

The anionic polymerization of α-methyl-α-butyl-β-propiolactam, MBPL, was studied for the effect of the lactam salt coinitiator on the rate of propagation. It was found that the lithium and tetramethylammonium salts gave essentially identical rate constants but the potassium salt gave a slightly higher value indicating more free ion character for the latter. However, the very small variation in rates observed as a function of the counterion suggests that anion solvation is the most important factor in these reactions, as previously proposed.

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Literature

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Author notes

  1. E. Bigdeli

    Present address: Department of Chemistry, University of Education, 49 Roosevelt Ave., Teheran, Iran

Authors and Affiliations

  1. Material Research Laboratory, Chemical Engineering Department, University of Massachusetts, 01003, Amherst, Mass., USA

    R. W. Lenz & E. Bigdeli

  2. Laboratoire de Chimie Macromoléculaire, Ecole Supérieure de Physique et de Chimie, 10, Rue Vauquelin, 75231, Paris 05, France

    H. Sekiguchi

  3. Institut für Makromolekulare Chemie der Universität, 7800, Freiburg i.Br., Germany

    R. W. Lenz

Authors
  1. R. W. Lenz
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  2. E. Bigdeli
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  3. H. Sekiguchi
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Additional information

Prof. Dr.Dr.h.c.mult. G. V. Schulz dedicated on the occasion of his 75th birthday

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Lenz, R.W., Bigdeli, E. & Sekiguchi, H. Propagation rates in the anionic polymerization of α-methyl-α-butyl-β-propiolactam. Polymer Bulletin 3, 91–96 (1980). https://doi.org/10.1007/BF00263210

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  • DOI: https://doi.org/10.1007/BF00263210

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