PREPARATION AND CHARACTERIZATIONS OF STIMULI SENSITIVITY OF PHYSICALLY CROSSLINKED INTERPENETRATING POLYMERIC NETWORKS OF GUAR GUM AND SODIUM ALGINATE
*Trishna Bal, Nidhika Vedgarbha and Sabyasachi Swain
Abstract
Vacuum dried Interpenetrating Polymeric networks of polymeric blend
of Guar Gum (GG)and Sodium Alginate(SA) were prepared by 30
Freeze thaw cycles (FTC) in three different ratios of 60:40, 50:50 &
40:60and were evaluated for stimuli sensitivity parameters by exposing
the prepared systems in varying pH, ionic concentration (Sodium
chloride) and varying temperature.The study revealed the system with
60 parts of GGand 40 parts of SAexhibited maximum percentage
equilibrium degree of swelling(%EDS) in all the three conditions
without any visible disruptions and weight loss, suggesting that the
system can be used as swellable hydrogel device for controlled release.
Keywords: Stimuli Sensitive, Freeze Thaw Cycles, Interpenetrating Polymeric network, Sodium Alginate, Guar Gum.
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