Sur les causes de l'auto-accélération dans la polymérisation de l'acrylonitrile en masse et en solution |
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Authors: | G. Burillo A. Chapiro Z. Mankowski |
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Affiliation: | Laboratoire de Chimie Macromoléculaire sous Rayonnement, CNRS, 94320 Thiais, France |
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Abstract: | A study of the polymerization of acrylonitrile in bulk and in DMSO solutions has shown that the auto-acceleration in these systems cannot be explained by non-steady-state conditions as usually assumed. It is suggested that the polyacrylonitrile formed in the initial stages of the reaction acts as a matrix onto which the monomer associates to form an oriented molecular complex in which chain propagation is favoured. This assumption conforms with the various results of this investigation. |
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