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Synthesis and Characterization of Graft Copolymer Rice Straw Cellulose-Acrylamide Hydrogels Using Gamma Irradiation

Deni Swantomo, DS and Rochmadi, R and K.T. Basuki, KTB and R. Sudiyo, RS (2013) Synthesis and Characterization of Graft Copolymer Rice Straw Cellulose-Acrylamide Hydrogels Using Gamma Irradiation. Synthesis and Characterization of Graft Copolymer Rice Straw Cellulose-Acrylamide Hydrogels Using Gamma Irradiation, 39 (2).

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Abstract

Rice straw cellulose available as waste biomass was graft copolymerized with acrylamide monomer by simultaneous gamma irradiation as initiator. The effects of bleaching of cellulose and irradiation dose were evaluated. Evidence of grafting is obtained from comparison of Fourier Transfer Infrared (FTIR) of the cellulose and grafted cellulose. X-ray diffraction analysis shows that crystallinity was reduced through graft copolymerization. Kinetic investigations of the graft copolymerization were also carried out, and the rate constant parameter (kp/kt0.5) has been found to be 4.9922 l0.5. mol-0.5.s-0.5. The results show that for the same dose, grafting efficiency is higher with the bleached cellulose form than with the unbleached form. The grafting efficiency and the gel fraction increases with increasing total irradiation doses. At higher radiation doses crosslink density starts to increase considerably while swelling degree decreases with the increasing crosslink density.

Item Type: Article
Subjects: Isotop dan Radiasi
Isotop dan Radiasi > Produksi Isotop dan Sumber Radiasi
Divisions: Sekolah Tinggi Teknologi Nuklir
Depositing User: USER STTN BATAN
Date Deposited: 15 Nov 2018 08:17
Last Modified: 15 Nov 2018 08:17
URI: http://repo-nkm.batan.go.id/id/eprint/633

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