Sample   Pg                     % Swelling Water MeOH BuOH DMF H. sabdariffa - 59.00 46.00 38.00 40.00 Hs-g-poly(MA) 60.24 29.00 26.00 44.00 60.00 Hs-g-poly(MA-co-VA) 138.52 12.00 08.00 71.00 82.00

Table 4: Effect of solvents on swelling behavior of graft copolymers vis-à-vis backbone.

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