Synthesis Characterization Curing And Thermal Decomposition Kinetics Of Bisphenol-A Based Polybenzoxazine

ABSTRACT A bisphenol-A-aniline based Polybenzoxazine was synthesized by reacting bisphenol-A with formaldehyde and aniline. The chemical structure was characterized by FT-IR analysis. The polymerization behavior of the monomer was monitored by differential scanning calorimetry DSC and FT-IR. The curing kinetics was studied by non-isothermal DSC and kinetic parameters were determined at heating rate 5 1015and 2026730Cmin from RT - 40026730C. The kinetic of thermal decomposition was investigated with thermogravimetric analysis by conducting the measurements at four different heating rates 5 1015and 2026730Cmin from RT - 90026730Cmin. Different kinetic models such as Flynn-wall-Ozawa method Kissinger method were adopted for both non-isothermal curing kinetics and decomposition kinetics.