THERMOGRAVIMETRIC PROPERTIES OF INCLUSION COMPLEXES OF BETA-CYCLODEXTRIN WITH BENZENE, ACETYLSALICYLIC-ACID AND METHYL SALICYLATE

This paper reports TG analyses of inclusion complexes of beta-cyclodex trin with benzene, acetylsalicylic acid and methyl salicylate. The dat a were used for calculation of the compositions of the three body comp lexes and the apparent kinetic parameters of the thermal decomposition s. Water exclusion proceeds as a reaction with order n = 1 and an acti vation energy about 20 kJ/mol. The expulsion of aromatic guest molecul es follows an n = 1 order process with the activation energy above 155 kJ/mol, except that for the methyl salicylate complex, which was foun d to be ca. 64 kJ/mol.