Preparation and Characterization of Carboxymethyl Cellulose Film From Sunflower Stalk
In this study, cellulose obtained from sunflower stalks was converted to carboxymethyl cellulose (CMC) by
carboxymethylation reaction using sodium monochloroacetate (NaMCA) in order to obtain CMC films. Films were prepared
by casting method. To investigate chemical structure of synthesized CMC and CMC films, Fourier transform infrared
spectroscopy (FTIR) was performed. Film solutions were prepared by adding gycerol, polyethylene glycol (PEG) and canola
oil separately as plasticizers. Thermogravimetric analysis (TGA) was performed and the degradation temperature of CMC f1,
CMC f2 and CMC f3 were found. Degree of substitution (DS) which is an important indicator of water solubility for CMC was
calculated as 0.51.
Keywords- cellulose; carboxymethyl cellulose; film; plasticizer.