Sample
Hs-g-poly-
Pg TGA DTA
IDT FDT % Residue Peaks in °C(μV)
H. sabdariffa - 225.7 463.0 20.00 139.7 (6), 327.9 (18.0), 422.7 (14)
(EA) 117.3 312.4 500.0 06.70 125.0 (2), 361.2 (1.2), 432.5 (29)
(EA-co-AN) 175.1 268.0 520.0 03.30 176.4 (17.1), 340.0(21), 425 (22.7)
(EA-co-MA) 179.9 339.6 542.7 28.33 152.0 (1.2), 341.8(3.3), 399.4 (17)
Phenoplast - 500.0 600.0 - 551.0 (150)
Hs-r-PF-C - 540.0 680.0 10.0 610.0 (164)
where, C= composite, IDT = initial decomposition temperature, FDT= final decomposition
temperature.
Table 3: TG-DTA of H. sabdariffa, graft copolymers and composite.
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