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

摘要

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, 10,15and 20?C/min) from RT - 400?C. The kinetic of thermal decomposition was investigated with thermogravimetric analysis by conducting the measurements at four different heating rates (5, 10,15and 20?C/min) from RT - 900?C/min. Different kinetic models such as, Flynn-wall-Ozawa method, Kissinger method were adopted for both non-isothermal curing kinetics and decomposition kinetics.