Swelling properties of cassava starch grafted with poly (potassium acrylate-co-acrylamide) superabsorbent hydrogel prepared by ionizing radiation

Journal Article · Tue Dec 29 00:00:00 EST 2015 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4938323· OSTI ID:22494469

Ulfiyani, Fida; Istiqomah, Shafina; Rahmayetty, ^[1]; Heriyanto, Heri; Erizal, ^[2]

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1. Department of Chemical Engineering, University of Sultan Ageng Tirtayasa, Cilegon, Banten (Indonesia)
2. Centre for Application of Isotopes and Radiation, Jakarta (Indonesia)

Natural and synthetic hydrophylic polymers can be phisically or chemically cross-linked in order to produce hydrogels. Starch based hydrogels grafted with copolymers from acrylic acid or acrylamide have become very popular for water absorbent application. Superabsorbent hydrogels made from Cassava starch grafted with poly (potassium acrylate-co-acrylamide) were prepared by using of ϒ-irradiation method. Various important parameters such as irradiation doses, monomer to Cassava starch ratio and acrylamide content were investigated. The addition of 7,5 % w w{sup −1} acrylamide into the reaction mixture generated a starch graft copolymer with a water absorption in distilled water as high as 460 g g{sup −1} of its dried weight. The effectivity of hydrogel as superabsorbent for aqueous solutions of NaCl and urea was evaluated. The obtained hydrogel showed the maximum absorptions of 317 g g{sup −1} and 523 g g{sup −1} for NaCl and urea solution, respectively (relative to its own dry weight). The structure of the graft copolymer was analyzed by using Fourier Transform Infrared Spectroscopy (FTIR) and Scanning Electron Microscope (SEM)

• OSTI ID: 22494469
• Journal Information: AIP Conference Proceedings, Vol. 1699, Issue 1; Conference: International conference of chemical and material engineering (ICCME) 2015: Green technology for sustainable chemical products and processes, Semarang (Indonesia), 29-30 Sep 2015; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

38 RADIATION CHEMISTRY
RADIOCHEMISTRY AND NUCLEAR CHEMISTRY
ACRYLAMIDE
ACRYLATES
ACRYLIC ACID
AQUEOUS SOLUTIONS
CASSAVA
COPOLYMERS
FOURIER TRANSFORM SPECTROMETERS
GAMMA RADIATION
GRAFTS
HYDROGELS
HYDROPHYLIC POLYMERS
INFRARED SPECTRA
IRRADIATION
POTASSIUM
RADIATION DOSES
SCANNING ELECTRON MICROSCOPY
SODIUM CHLORIDES
STARCH
SWELLING
UREA