. 2024 Mar 21;10(3):212. doi: 10.3390/gels10030212

Table 1.

Thermal analysis and theoretical adjustment values using Schott equation for the studied hydrogels.

Samples	TGA			DSC—PVA		Schott Equation Model
	T_max (°C)		T₁₀ (°C)	T_m (°C)	ΔH_f (J/g)	R²	K_s	W_∞ Calc	W_∞ Obs
	1st Stage	2nd Stage	T₁₀ (°C)	T_m (°C)	ΔH_f (J/g)	R²	K_s	W_∞ Calc	W_∞ Obs
PVA	365 ± 3	427 ± 4	268 ± 3	226 ± 2	73 ± 6	0.9999	0.014	3.48	3.46
15	369 ± 5	435 ± 3	204 ± 2	223 ± 2	24 ± 3	0.9999	0.077	3.04	3.03
30	367 ± 5	436 ± 4	173 ± 2	222 ± 2	26 ± 2	0.9998	0.038	2.13	2.12
60	366 ± 4	440 ± 5	256 ± 3	223 ± 2	27 ± 3	0.9988	0.019	2.03	2.00
120	347 ± 4	426 ± 4	238 ± 1	223 ± 2	22 ± 3	0.9998	0.031	2.05	2.03

For DSC—T_m: melting point of PVA; ΔH_f: heat of fusion for PVA hydrogels; TGA—T_max maximum temperature of decomposition for two stages seen on the thermo curves and T₁₀ temperature to decompose 10% of the hydrogel. K_s: swelling rate, W_∞ calc: theoretical, and W_∞ obs experimental value of equilibrium swelling.