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Study of local oxidative degradation in polypropylene impact copolymer by energy dispersive X-ray system

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Summary

In this study, the thermal oxidative degradation of a polypropylene (PP) impact copolymer was examined using a transmission electron microscope equipped with an energy dispersive X-ray system (TEM/EDX). The oxidative behavior was visually captured by oxygen line analysis. The oxidation resistance of the ethylene-propylene rubber (EPR) phase was considerably higher than that of the PP matrix, indicating that the degradation behavior of the PP impact copolymer was heterogeneous. It was found that the higher resistance of the EPR phase originated from its primary structure by 13C-NMR measurement.

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Authors and Affiliations

  1. Research and Evaluation Center, Sumitomo Wiring Systems Co., Ltd., 1820 Nakanoike, Mikkaichi, Suzuka, Mie, 513-8631, Japan

    Norio Manabe & Yoshimitsu Yokota

  2. Department of Bioengineering and Chemistry, College of Environmental Engineering and Architecture, Kanazawa Institute of Technology, 7-1 Ohgiga-oka, Nonoichi, Ishikawa, 921-8501, Japan

    Hisayuki Nakatani

  3. School of Materials, Science Japan Advanced Institute of Science and Technology, 1-1 Asahidai, Tatsunokuchi, Ishikawa, 923-1292, Japan

    Shoutarou Suzuki, Liu Boping & Minoru Terano

Authors
  1. Norio Manabe
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  2. Yoshimitsu Yokota
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  3. Hisayuki Nakatani
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  4. Shoutarou Suzuki
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  5. Liu Boping
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  6. Minoru Terano
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Correspondence to Hisayuki Nakatani.

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Manabe, N., Yokota, Y., Nakatani, H. et al. Study of local oxidative degradation in polypropylene impact copolymer by energy dispersive X-ray system. Polym. Bull. 54, 141–145 (2005). https://doi.org/10.1007/s00289-005-0370-9

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  • DOI: https://doi.org/10.1007/s00289-005-0370-9

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