Polymer degradation by elimination—III. The probability—theoretical treatment of the elimination assuming a reaction step interrupting the propagation of activation

✍ Scribed by T. Kelen; G. Galambos; F. Tüdős; G. Bálint

• Publisher: Elsevier Science
• Year: 1969
• Tongue: English
• Weight: 524 KB
• Volume: 5
• Category: Article
• ISSN: 0014-3057
• DOI: 10.1016/0014-3057(69)90126-8

✦ Synopsis

A~traet---The probability-theoretical treatment of the model formed for the interpretation of the thermal degradation of poly(vinyl chloride) has been accomplished. Chain termination is assumed to occur by a reaction step interrupting the propagation of activation.

The discussion has been performed both without limitations to the values of the rate constants, and in the simplified case supposing ¢3 >~, a.

It has been found, that the alternative formulation of the chain termination led to the same results; the good agreement of these with the experimental data supports the assumptions of the model; it does not solve, however, the problem of the real physical and chemical significance of the probability factor appearing in the results.

The treatment is to be applied also for other polymers degrading by elimination, as well as for certain polymer-analogous reactions.