Chemical Polymerization Kinetics of Poly-O-Phenylenediamine and Characterization of the Obtained Polymer in Aqueous Hydrochloric Acid Solution Using K₂Cr₂O₇ as Oxidizing Agent

Table 4

Thermogravimetric data of poly-o-phenylenediamine (POPDA).

Name	Temperature  range °C	Weight loss (%)		The removed  molecule
		Calc.	Found
Poly(POPDA)	29.5–122.6	3.41	3.212	H2O
	122.6–203.8	6.91	6.652	HCl
	203.8–320.3	12.11	11.791	4NH2
	320.3–400.00	17.22	16.952	C6H3–NH
	400–523.40	14.19	13.778	C6H3
	Remaining weight (%) above 600	46.17	47.62	—