Abstract
The adsorbents based on bacterial cellulose matrices, i.e. bacterial cellulose-co-(poly)acrylamide (BC-PAAM) and bacterial cellulose-co-(poly)acrylic (BC-PAA) has been successfully synthesized using polymerization radiation technique by gamma rays. The irradiation doses used in this study were 25, 50, 75, 100, and 150 kGy, with the dose rate of 5 kGy/h. The results showed that the optimum dose for synthesizing the BC-PAAM by using the simultaneous technique was 50 kGy, with the optimum gel fraction was 90.04 % obtained for mass ratio among acrylamide (AAM) and bacterial cellulose (BC) was 1:4. Meanwhile, the optimum dose for synthesizing the BC-PAA by using the similar technique was 75 kGy, with the optimum gel fraction was 94.27 % for the mass ratio between acrylic (AA) and bacterial cellulose (BC) was 2:3. The Fourier Transform Infrared spectroscopy (FTIR) spectra showed that the AA and AAM had been successfully grafted onto the BC. The increasing of heat resistance of the grafted adsorbent was indicated by Differential Scanning Calorimetry (DSC) analysis.
Published Version
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