Bhavesh J. Gangani, Parsotam H. Parsania, Effect of Substitutions on Thermal Behavior of Symmetric Doubleschiff Bases of 1,1’-Bis(4-Amino Phenyl)Cyclohexane, ILCPA Volume 63, International Letters of Chemistry, Physics and Astronomy (Volume 63)
https://www.scipress.com/ILCPA.63.145
Abstract:
    Thermo gravimetric analyses of some symmetric double Schiff bases of 1, 1’- bis (4-amino phenyl) cyclohexane (SDSB-1 to SDSB-6) was carried out at 10<sup>0</sup> C/min in nitrogen atmosphere. Schiff bases are thermally stable up to 200-285°C and followed two step degradation kinetic. Various kinetic parameters such as order of degradation (n), energy of activation (E<sub>a</sub>), frequency factor (A) and entropy change (ΔS) were derived accordingly Anderson-Freeman method interpreted in light of nature of the substituents. The nature, size and position of substituents affected thermal properties of the Schiff bases.
Keywords:
    Degradation Mechanism, Kinetic Parameter, Symmetric Double Schiff Bases, Thermal Stability