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Invariant kinetic parameters of polymer thermolysis. II. Butyl rubber pyrolysis
Author(s) -
Levchik S. V.,
Levchik G. F.,
Lesnikovich A. I.
Publication year - 1989
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1989.070370515
Subject(s) - thermal decomposition , arrhenius equation , thermodynamics , kinetic energy , natural rubber , inert gas , materials science , pyrolysis , invariant (physics) , kinetics , polymer , thermal , polymer chemistry , activation energy , chemistry , mathematics , physics , organic chemistry , composite material , classical mechanics , mathematical physics
The methodological problem of correct estimation of invariant Arrhenius parameters Ǎ and Ě from nonisothermal experiments has been analyzed for thermal decomposition of commercial butyl rubber in inert atmosphere. It is shown that restriction of the kinetic analysis by varying n in the function f (α) = (1 − α) n may yield incorrect Ǎ and Ě . It is necessary to apply the set of f (α) known in the formal topochemical reactions kinetics for correct estimation of Ǎ and Ě .