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Reaction Kinetics and Catalysis Letters

, Volume 5, Issue 3, pp 309–315 | Cite as

Cross-linking and gel formation in the thermal degradation of PVC

  • T. T. Nagy
  • B. Turcsányi
  • T. Kelen
  • F. Tüdős
Article

Abstract

Cross-linking in the thermal degradation of PVC was investigated by measuring the dependence of number-average molecular weight, gel fraction, molecular weight distribution and intrinsic viscosity on degradation time. A linear relationship was found between the cross-linking density and reaction time. Only one fifth of the polyene sequences formed participate in the cross-linking process.

Keywords

Viscosity Molecular Weight Physical Chemistry Reaction Time Catalysis 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Abstract

Сшивка при термической деградации ПВХ была исследована измерением зависимости средне-числового молекулярного веса, гелевой фракции, распределения по молекулярным весам и истинной вязкости от времени деградации. Была найдена линейная зависимость между плотностью сшивки и временем реакции. Лишь одна пятая от всех образующихся полиеновых звенев принимает участие в сшивке.

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Copyright information

© Akadémiai Kiadó 1976

Authors and Affiliations

  • T. T. Nagy
    • 1
  • B. Turcsányi
    • 1
  • T. Kelen
    • 1
  • F. Tüdős
    • 1
  1. 1.Central Research Institute for Chemistry of the Hungarian Academy of SciencesBudapest

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