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The effect of morphology on thermal stability of isotactic polypropylene in air

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  • Polymer Science
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Summary

The studies on thermooxidative degradation of isotactic polypropylene films with different morphological structure were carried out in the air in temperature range 85–145 °C. The various crystallinity degrees and morphologies of PP films were obtained by cooling the melt and crystallization at different temperatures. The studies on structural changes going together with degradation and on the kinetics of chain scission have shown that this reaction occurs in two stages. The first is connected with consumption of oxygen dissolved in the initial films and the second is controlled by its diffusion into the films. The rates of degradation and structural changes occurring simultaneously depend not only on the initial crystallinity but also on morphology of the systems under study.

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Authors and Affiliations

  1. Polymer Institute Technical University, Lodi, 40-539, Poland

    M. Mucha & M. Kryszewski

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  1. M. Mucha
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  2. M. Kryszewski
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Dedicated to Prof. G. Rehage on occasion of his 60th birthday

With 8 figures and 1 table

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Mucha, M., Kryszewski, M. The effect of morphology on thermal stability of isotactic polypropylene in air. Colloid & Polymer Sci 258, 743–752 (1980). https://doi.org/10.1007/BF01384365

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  • DOI: https://doi.org/10.1007/BF01384365

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