Sample
Pg
% Chemical resistance
% wt. loss after 72 hours
% Moisture absorbance
at different RH after 12 hours
Hs
-g-poly-
In 1N HCl
In 1N NaOH
30-35%
50-55%
60-65%
85-90%
H. sabdariffa
-
55.0
43.0
0.5
0.8
1.8
2.5
(MA)
60.24
39.0
27.0
-
0.1
1.4
1.8
(MA-co-VA)
138.52
-
-
-
-
0.2
0.4
Table 3:
Chemical resistance and moisture absorbance behavior of graft copolymers vis-à-vis back bone.
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