%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 %A Gladys N. %A Ca£¿izo %A Adriana I. %A Mateo %A Carmen M. %J Qu¨ªmica Nova %D 2004 %I Sociedade Brasileira de Qu¨ªmica %R 10.1590/S0100-40422004000600016 %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_abstract&pid=S0100-40422004000600016&lng=en&nrm=iso&tlng=en