SYNTHESIS AND CHARACTERIZATION OF HYDROGELS BASED ON CELLULOSE DERIVATIVES AND TANNIC ACID

Abstract

Hydrogels were synthesized utilizing, Carboxy methyl cellulose sodium salt, Hydroxy propyl methyl cellulose, Methyl cellulose and Tannic acid. The methodology incorporates free radical polymerization strategy with acrylamide (AAm), N,N'- Methylenebis-acrylamide (MBA) as a crosslinker and Potassium Persulfate (KPS) as an initiator. The synthesis was evident with the help of characterization using Thermogravimetric analysis for thermal analysis, Fourier-transform infrared spectroscopy for detecting the functional groups present and linkages formed , Scanning Electron Microscopy for surface morphologies , X-Ray diffraction for investivating the crystalline or amorphous nature and swelling studies in buffer solutions of pH 4.0, pH 7.4, pH 9.2 and distilled water for investigating the absorption characteristics.