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The intention of the present study was to synthesize Gum ghatti-cl-poly(acrylic acid)/-o-MWCNT hydrogel by free radical copolymerization method where the role of various ingredients are as: Gum ghatti as biopolymer (GG), acrylic acid (AA) as a probe for synthetic monomer, ammonium persulfate as initiator and methylene bis-acrylamide (MBA) as a crosslinker. The oxidized multiwalled nanocarbon tubes (-o-MWCNT) with variable amounts (0-50 mg) were used as fillers. The as-prepared hydrogels were characterized by X-ray diffraction, scanning electron microscope and Fourier transform infrared spectroscopy.The rheological investigation of hydrogels revealed that the storage modulus (G 0 ) was always higher than the loss modulus (G 00 ) in the linear viscoelastic region over the entire frequency range. The persistent covalence crosslinking is responsible for the solid-like behavior and elastic nature (G 0 > G 00 ). Hydrogels containing Gum ghatti-cl-poly(acrylic acid)/-o-MWCNT increased with strain. The nonlinear oscillatory shear increases by the addition -o-MWCNT.The features shown highlight the potential of Gum ghatti-cl-poly(acrylic acid)/-o-MWCNT hydrogels for agricultural, medicinal, and pharmaceutical applications.

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