Statistical theories of main chain scission and crosslinking of polymers—application to the photolysis and radiolysis of polystyrene studied by gel permeation chromatography

The statistical theories of main chain scission and crosslinking resulting from either homogeneous or inhomogeneous energy dissipation in polymers are summarized. The molecular weight distributions of polystyrene samples subjected in vacuo to y-rays (homogeneous energy dissipation) or to U.V. irradi...

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Bibliographic Details
Published in:European polymer journal 1978, Vol.14 (1), p.29-38
Main Authors: David, C., Baeyens-Volant, D.
Format: Article
Language:English
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Summary:The statistical theories of main chain scission and crosslinking resulting from either homogeneous or inhomogeneous energy dissipation in polymers are summarized. The molecular weight distributions of polystyrene samples subjected in vacuo to y-rays (homogeneous energy dissipation) or to U.V. irradiation (inhomogeneous energy dissipation) have been measured by GPC for various absorbed doses. The results are discussed according to these theories. Les théories statistiques de la réticulation et des ruptures de chaînes résultant d'absorption d'énergie soit homogène, soit inhomogène sont résumées. La distribution des masses moléculaires de polystyrène dégradé sous vide au moyen de rayonnement γ (absorption homogène) ou u.v. (absorption inhomogène) a été mesurée par GPC en fonction de la dose absorbée. Les résultats sont discutés en fonction de ces théories.
ISSN:0014-3057
1873-1945
DOI:10.1016/0014-3057(78)90148-9