Stability of supramolecular compounds under heating
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The decomposition of series of supramolecular compounds, namely inclusion compounds, was studied by means of different thermoanalytical methods, i.e., traditional thermogravimetry, quasi-equilibrium thermogravimetry, and thermomechanical analysis. The series of compounds included the intercalates on the base of fluorinated graphite C2F, the clathrates on the base of carbamide and on the base of coordination compounds and microporous inclusion compounds on the base of coordination compounds. Kinetic parameters of decomposition processes were estimated within the approaches of the non-isothermal kinetics (“model-free” kinetics, linear and non-linear regression methods for the topochemical equation detection). The kinetic stability of the inclusion compounds under heating, the flexibility of the matrix structure, and the thermodynamic stability of the intermediate phases are discussed.
KeywordsInclusion compounds Kinetic stability Non-isothermal kinetics Quasi-isobaric quasi-isothermal thermogravimetry Supramolecular compounds Thermodynamic stability
Author is grateful to Netzsch Geraetebau GmbH for the possibility to work with computer program “NETZSCH Thermokinetics 2” and RFBR for the financial support (Grants 07-03-00436 and 07-03-91208).
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