Fig. 5: FTIR analysis.

FTIR spectra of plain OCP (CONTROL), OCP with incorporated pyromellitate ions (Pyro5_pH6.0), and pyromellitic acid obtained using the KBr pellet method.

FTIR spectra of plain OCP (CONTROL), OCP with incorporated pyromellitate ions (Pyro5_pH6.0), and pyromellitic acid obtained using the KBr pellet method.