Thermally Stable Forms of Pure Polyaniline Catalyzed by an Acid-Exchanged Montmorillonite Clay Called Maghnite-H⁺ as an Effective Catalyst

Table 2

Thermodynamics properties of different forms of polyaniline 𝑇 (°C), Δ𝐻 (𝐽/𝑔), Δ𝐶𝑝 (𝐽/𝑔*°C).

Sample	𝑇1	𝑇2	𝑇3	𝑇𝑔	Δ𝐻1	Δ𝐻2	Δ𝐻3	Δ𝐶𝑝
PANI-EB	55.99	103.46	X	74.06	4.3161	20.5363	X	0.311
PANI-ES	50.34	140.10	221.07	103.75	167.6042	4.4617	10.7719	0.154
PANI-HCL	100.45	163.09	218.57	126.89	1.9678	8.7614	16.8337	0.180