Authors : A. D. Kushwaha1, V. V. Hiwase, A. .B. Kalambe1
Page Nos : 691-698
Description :
The resin (abbreviated as PNPRF) was derived from acid catalyzed polycondensation of
p-nitrophenol (0.2M), resorcinol (0.1M) and formaldehyde (0.4M) using 1M HCl at 120-
1250C. The terpolymer resin was characterized by using elemental and spectral
analysis. In the present paper, thermal decomposition was studied over a wide range of
temperature. The thermokinetic parameters were determined using Freeman-Carroll
(FC) and Sharp Wentworth (SW) method in temperature range (217-5020C).The values
of activation energies (Ea), entropy (ΔS*) and free energies (ΔG*) obtained by both
method. The order of degradation reaction determined by FC method was confirmed by
SW method.
