| Issue |
J. Chim. Phys.
Volume 88, 1991
|
|
|---|---|---|
| Page(s) | 1209 - 1216 | |
| DOI | https://doi.org/10.1051/jcp/1991881209 | |
| Published online | 29 May 2017 | |
Apports de la radiolyse des alcanes à celle des polymères
Université Catholique de Louvain, École de Pharmacie, Avenue E Mounier 72, 1200 Bruxelles, Belgium.
Les mécanismes chimiques de la radiolyse de n-alcanes permettent-de mieux comprendre les transformations subies par le polyéthylène irradié; toute extrapolation est toutefois limitée par la différence de poids moléculaire.
Abstract
The mechanisms of radiation effects on polyethylene are investigated by studies of high molecular weight alkanes model compounds Analysis of final products gives the distribution of alkane dimers. The main features of the chemical aspects of radiation-induced changes in polymers are considered : chain crosslinking, morphology effects, C=C bonds formation, energy transfer, radical decay,... However, the chemical changes observed in model compounds can be quite misleading as models for high molecular weight polymers.
© Elsevier, Paris, 1991