Summary
The thermoactivated relaxation processes resulting in untrapping of the carriers and in recombination luminescence are described by means of the sum of independent elementary relaxators. In order to describe an elementary relaxator distribution function following characteristics were obtained by the fractional glow technique: i) the mean activation energy, ii) the mean frequency factor, iii) the recombination intensity, iv) activation energy spectrum, v) and frequency factor spectrum for butadiene-styrene copolymer. Using the Boltzmann equation unusually large values of frequency factor and activation energy were obtained, giving evidence that molecular motions γ, α exist in some temperature regions and therefore, that another desciption would be necessary.
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Pospíšil, J., Tale, I.A. Spectroscopy of thermoactivated relaxation processes in butadiene-styrene copolymers in the elementary relaxator approach. Polymer Bulletin 9, 40–46 (1983). https://doi.org/10.1007/BF00275566
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DOI: https://doi.org/10.1007/BF00275566