✦ LIBER ✦

Contribution to the modeling of predepolymerization of polystyrene

✍ Scribed by M. Swistek; G. Nguyen; D. Nicole

Publisher: John Wiley and Sons
Year: 1996
Tongue: English
Weight: 578 KB
Volume: 60
Category: Article
ISSN: 0021-8995
DOI: 10.1002/(sici)1097-4628(19960606)60:10<1637::aid-app16>3.0.co;2-1

No coin nor oath required. For personal study only.

✦ Synopsis

T o optimize the experimental conditions for the recycling of plastic wastes, we modeled the thermal degradation process of a standard polystyrene, having a low polydispersity index. The number of initial ruptures, No, in the macromolecular chain during the pyrolysis a t 350°C under nitrogen pressure is determined from the gel permeation chromatography results from the experiments with tetralin as the hydrogen donor solvent, assuming that all radicals have been stabilized by this solvent. The calculation shows that there are 23 depropagation reactions, 40 intramolecular transfers, and for n intermolecular transfers, n -2 recombinations, and Non + 2 dismutations.

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