%0 Journal Article
%T Efecto de solvente sobre la descomposici¨®n t¨¦rmica de trans-3,6-dimetil-3,6-difenil-1,2,4,5-tetraoxaciclohexano en soluci¨®n
%A Eyler Gladys N.
%A Ca£¿izo Adriana I.
%A Mateo Carmen M.
%J Qu¨ªmica Nova
%D 2004
%I Sociedade Brasileira de Qu¨ªmica
%X The thermal decomposition reaction of trans-3,6-dimethyl-3,6-diphenyl-1,2,4,5-tetraoxacyclohexane (acetophenone cyclic diperoxide, DPAF), in different solvents (methanol, 1,4-dioxane, acetonitrile and 2-propanol/benzene mixtures) in the initial concentration and temperature ranges of (4.2-10.5) x 10-3 M and 140.0 to 185.0 oC, respectively, follows a pseudo first order kinetic law up to at least 70% DPAF conversion. An important solvent effect on the rate constant values, activation parameters (DH# and DS#) and reaction products obtained in different solvents is detected, showing that the reaction is accelerated in alcohols.
%K kinetics in solution
%K solvent effect
%K acetophenone cyclic diperoxide
%U http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422004000600016