Effect of pressure on the decomposition of 2-tert-butyl peroxide in solution

Autor: V. M. Zhulin, Yu. D. Koreshkov, E. B. Kabotyanskaya, I. Khuéidzha
Rok vydání: 1990
Předmět:
Zdroj: Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 39:1739-1742
ISSN: 1573-9171
0568-5230
DOI: 10.1007/bf00961517
Popis: A study was carried out on the effect of pressure up to 1400 MPa on the homolytic decomposition of di-tert-butyl peroxide (DTBP) at 403 K in 2-methoxy- (I) and 2-ethoxytetrahydropyran (II) as well as in a mixture of 30 mole % (I) and 70 mole % benzene. Spline approximation of the experimental pressure dependence of the logarithm of the decomposition rate constant (ka) gave the continuous dependence of the volumetric activation effect (ΔV≠) on pressure. The value of ΔV≠ at atmospheric pressure (ΔV≠ 0) and the nature of the change of AV≠ with increasing pressure were found to depend on the nature of the solvent. This dependence is difficult to explain in the framework of the accepted transition state theory.
Databáze: OpenAIRE