Synthesis and characterization of thermally stable aromatic polyamides and poly(1,3,4-oxadiazole-amide)s nanoparticles containing pendant substituted bezamides

Table 4 Kinetic parameters of the polyamides 12–25

No	Slope DTA	ΔE^a	a	b	S^b	N^c	α_m^d	T_m(K)	Z^e	ΔS^f	ΔH^g	^hR²
12	−23.5	195.5	1.3	0.7	5.3	1.7	0.5	537.7	3.9	−0.23	−128.1	0.96
12	−11.1	93.0	2.9	1.5	5.2	1.7	0.5	833.5	1.1	−0.25	−210.3	0.97
13	−12.7	105.6	3.6	1.2	8.5	2.1	0.4	823.4	0.7	−0.25	−210.2	0.95
14	−10.5	87.7	1	0.7	4.0	1.5	0.5	815.7	1.0	−0.25	−205.9	0.99
14	−9.4	78.5	6	3	5.7	1.7	0.5	821.2	0.9	−0.25	−208.2	0.96
15	−17.4	145.0	4	1.9	6.0	1.8	0.5	810.1	1.8	−0.24	−201.0	0.99
16	−29.4	244.7	0.6	0.5	3.4	1.3	0.5	648.4	4.0	−0.23	−155.4	0.96
16	−17.0	141.9	4.8	1.6	8.5	2.1	0.4	867.7	1.6	−0.24	−216.5	0.98
17	−10.2	85.1	0.9	0.6	4.2	1.5	0.5	405.1	1.3	−0.24	−99.2	0.98
	−23.6	196.9	0.6	0.7	2.4	1.1	0.6	554.2	2.3	−0.24	−134.7	0.97
	−11.8	98.8	0.4	1	1.1	0.7	0.6	629.3	0.9	−0.25	−158.1	0.98
	−53.9	448.6	3	1.5	5.7	1.7	0.5	801.9	3.6	−0.24	−194.3	0.99
18	−20.7	172.3	0.4	1.2	0.9	0.7	0.6	365.8	5.5	−0.23	−85.0	0.86
	−36.3	302.4	1.3	0.7	5.3	1.7	0.5	736.5	4.4	−0.24	−176.8	0.97
	−7.3	60.8	2.3	1.1	4.1	1.8	0.5	836.3	0.7	−0.25	−214.1	0.82
19	−23.6	196.9	3.4	1.5	6.4	1.8	0.5	852.2	2.3	−0.24	−209.9	0.99
20	−40.5	337.8	0.9	0.5	5.1	1.6	0.5	790.3	4.5	−0.24	−189.9	0.95
20	−25.0	207.8	2.8	1.6	5.0	1.6	0.5	887.6	2.4	−0.24	−218.9	0.86
21	−21.9	182.6	0.5	0.6	2.2	1.1	0.6	679.7	2.8	−0.24	−165.2	0.99
21	−11.7	97.5	4.5	1.7	7.5	2.0	0.4	880.1	1.1	−0.25	−222.6	0.90
23	−14.1	117.4	4.2	2.4	5	1.6	0.5	815.5	0.8	−0.25	−207.3	0.99
23	−4.6	38.8	4	1.6	7.1	1.9	0.5	834.3	0.2	−0.26	−220.2	0.91
24	−25.6	213.1	0.8	0.4	6.0	1.8	0.5	706.7	3.1	−0.24	−171.3	0.99
24	−24.8	206.8	3.4	2.5	3.8	1.4	0.5	852.4	2.5	−0.24	−209.6	0.92
25	−27.4	227.8	2.8	1.7	4.7	1.6	0.5	831.7	2.8	−0.24	−203.5	0.84

^aDE:activation energy, ^bS: asymmetry of the peak, ^cn: order of chemical reaction, ^dα_m: decomposed substance fraction at the moment of maximum development of reaction with (T = T_m),^eZ: collision factor (s^-1), ^fΔS: entropy in KJ/mol, ^gΔH: enthalpy in KJ/mol, ^hR²: coefficient of determination.

ISSN: 2661-801X