Obtaining kinetic parameters by modulated thermogravimetry

A new technique, called modulated thermogravimetry, is introduced as a tool for obtaining continuous kinetic information for decomposition and volatil ization reactions. The approach makes use of an oscillatory temperature pro gram to obtain kinetic parameters during a mass loss. MTGA(TM) may be used under quasi-isothermal conditions to observe a single mass loss or may be c ombined with linear heating rate or Hi-Res(TM) controlled rate thermogravim etry to scan from one mass loss region to another. Results obtained are in agreement with those obtained by other kinetic methods.