Effect of static deformation on kinetics of oxidation of polyisoprene vulcanizate containing sulphur bonds

Autor:	I.V. Korniyenko, S.I. Bol'shakova, A.S. Kuz'minskii
Rok vydání:	1980
Předmět:	Materials science Kinetics General Engineering chemistry.chemical_element Activation energy Deformation (meteorology) Sulfur Peroxide Stress (mechanics) chemistry.chemical_compound Reaction rate constant chemistry Chemical engineering Macromolecule
Zdroj:	Polymer Science U.S.S.R.. 22:2856-2861
ISSN:	0032-3950
DOI:	10.1016/0032-3950(80)90135-5
Popis:	A calorimetric study was made of the effect of static deformation on oxidation kinetics of a peroxide vulcanizate of polyisoprene containing a small proportion of combined sulphur. The effect of static deformation varies at different stages of oxidation. At the initial stage sulphides are oxidized and the process is considerably accelerated by the stress formed under static deformations. The effect of static deformation at the stage of auto-catylysis hinders oxidation, reducing the rate constant and increasing the activation energy of this process as a result of a reduction in the conformation mobility of macromolecules.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::3841a071657d67815cfcb22b33d4f75d https://doi.org/10.1016/0032-3950(80)90135-5 Zobrazit plný text záznamu