• S.M. Anuradha,
• M. Sekar

: Phenylamine Schiff base namely N1,N4-dibenzylidenebenzene-1,4-diamine (DBBD) has been synthesized from p-phenylenediamine, aldehyde and few drops of glacial acetic acid by condensation method and characterized by microanalysis, Fourier transform infrared (FT-IR) and NMR (1H and 13C) spectroscopic techniques. The thermal decomposition of DBBD was studied by thermogravimetry under nitrogen atmosphere at different heating rates of 10, 15 and 20 K min–1. The decomposition process of DBBD is occurred in two steps as evidenced from thermogram. The kinetic parameters were calculated using model-free methods (Friedmann, Kissinger-Akahira-Sucrose (KAS) and Flynn-wall-Ozawa (FWO)) and model-fitting method [Coats-Redfern (CR)]. The calculated invariant kinetic parameters of DBBD are consistent with the average values obtained by Friedmann and KAS isoconversional method and each step of decomposition is followed different kinetic models. The first stage of thermal decomposition of DBBD was described by a P2 model and second stage described by a P3 model.

phenylamine Schiff bases, non-isothermal, invariant kinetic parameters

"Non-isothermal decomposition of N1,N4-dibenzylidenebenzene-1,4-diamine (DBBD) under nitrogen atmosphere", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 10, page no.232-250, October-2018, Available :http://www.jetir.org/papers/JETIR1810235.pdf

"Non-isothermal decomposition of N1,N4-dibenzylidenebenzene-1,4-diamine (DBBD) under nitrogen atmosphere", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 10, page no. pp232-250, October-2018, Available at : http://www.jetir.org/papers/JETIR1810235.pdf