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Molecular weight dependence of positron lifetime parameters in PEEK samples

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Abstract

Positron lifetime measurements have been performed on differently manufactured PEEK samples of different molecular weights. Our measurements confirmed an old assumption: the o-Ps lifetime changes linearly with the molecular weight of the polymer. We have found that both the size of the free volumes and their number increase with increasing molecular weight of the investigated polymers.

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Authors and Affiliations

  1. Department of Nuclear Chemistry, Eötvös L. University, P.O.B. 32, H-1518, Budapest, Hungary

    K. Süvegh & A. Vértes

  2. Max-Planck-Institut für Polymerforschung, Ackermannweg 10, W-6500, Mainz, Germany

    M. Klapper

Authors
  1. K. Süvegh
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  2. M. Klapper
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  3. A. Vértes
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Süvegh, K., Klapper, M. & Vértes, A. Molecular weight dependence of positron lifetime parameters in PEEK samples. Journal of Radioanalytical and Nuclear Chemistry Letters 186, 375–384 (1994). https://doi.org/10.1007/BF02162621

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  • DOI: https://doi.org/10.1007/BF02162621

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