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Racemic poly(α-alkyl-α-phenyl-βpropiolactone) substituent dependence

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Summary

The α-phenyl-α-alkyl-β-propiolactones (alkyl groups =-CH2CH3; -CH2CH2CH3; -CH2CH2CH2CH3) were synthesized and polymerized by anionic ring-opening polymerization by tetra-ethylammonium benzoate (non-chiralic initiator). It was found that the molecular weight of polylactones increased as the size of the alkyl substituent increased. Poly(α-propyl-α-phenyl-β-propiolactone) showed the highest melting temperature. Lactones polymerized using tetraethylammonium dibenzoiltartrate (chiralic initiator) gave polyesters with higher melting temperature than those obtained with a non-chiralic initiator under the same conditions.

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Authors and Affiliations

  1. Faculty of Science, Department of Chemistry, University of Concepción, Casilla 3-C, Concepción, Chile

    G. Canessa, S. A. Pooley, M. Rodriguez-Baeza & A. Neira

Authors
  1. G. Canessa
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  2. S. A. Pooley
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  3. M. Rodriguez-Baeza
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  4. A. Neira
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Canessa, G., Pooley, S.A., Rodriguez-Baeza, M. et al. Racemic poly(α-alkyl-α-phenyl-βpropiolactone) substituent dependence. Polymer Bulletin 6, 515–519 (1982). https://doi.org/10.1007/BF00256372

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  • DOI: https://doi.org/10.1007/BF00256372

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