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Reversible crosslinking during thermal degradation of PVC

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Summary

PVC undergoes rapid crosslinking during thermal degradation. Diels-Alder addition of conjugated polyenes was proposed as a possible crosslinking mechanism by earlier authors. By the use of conditions favoring retro Diels-Alder reaction of crosslinks (treatment with maleic anhydride at elevated temperature) it was proved that crosslinks are largely reversible. Evidently Diels-Alder addition of the conjugated polyenes plays an important role in crosslinking during thermal degradation of PVC.

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Author notes

  1. Joseph P. Kennedy

    Present address: Institute of Polymer Science, The University of Akron, 44325, Akron, Ohio, USA

Authors and Affiliations

  1. Central Research Institute for Chemistry of the Hungarian Academy of Sciences, Budapest, Hungary

    Tibor Kelen, Béla Iván, Tamás Tibor Nagy, Béla Turcsányi, Ferenc Tűdős & Joseph P. Kennedy

Authors
  1. Tibor Kelen
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  2. Béla Iván
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  3. Tamás Tibor Nagy
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  4. Béla Turcsányi
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  5. Ferenc Tűdős
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  6. Joseph P. Kennedy
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Kelen, T., Iván, B., Nagy, T.T. et al. Reversible crosslinking during thermal degradation of PVC. Polymer Bulletin 1, 79–84 (1978). https://doi.org/10.1007/BF00255718

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  • DOI: https://doi.org/10.1007/BF00255718

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