Thermolysis kinetics of polypropylene on rapid heating

Using the system of rapid heating, the thermolysis kinetics of polypropylene (PP) was studied with heating rates in the 150–4760 K min −1 range. For the formation processes of fragments with m z = 41, 42, 43, identical rising dependences of the effective activation energy on the transformation degre...

Full description

Saved in:
Bibliographic Details
Published in:Thermochimica acta 1993-02, Vol.215, p.325-328
Main Authors: Vyazovkin, S, Goryachko, V, Bogdanova, V, Guslev, V
Format: Article
Language:English
Subjects:
Applied sciences
Chemical reactions and properties
Degradation
Exact sciences and technology
Organic polymers
Physicochemistry of polymers
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Using the system of rapid heating, the thermolysis kinetics of polypropylene (PP) was studied with heating rates in the 150–4760 K min −1 range. For the formation processes of fragments with m z = 41, 42, 43, identical rising dependences of the effective activation energy on the transformation degree have been revealed. The shape of the obtained dependences is due to the occurrence of parallel, competing reactions, interpreted as the transformation processes of associated and non-associated macromolecules of PP. This mechanism also explains the kinetic laws for the overall thermolysis of PP at normal heating rates.
ISSN:0040-6031
1872-762X
DOI:10.1016/0040-6031(93)80108-M