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Modified CMC. 3. Carboxymethylcellulose-g-poly(acrylamidrazone) as a new metal adsorbent

Zohuriaan Mehr, M. J ; Sharif University of Technology | 2004

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  1. Type of Document: Article
  2. Publisher: 2004
  3. Abstract:
  4. A new poly(acrylamidrazone) chelating resin was prepared from carboxymethylcellulose (CMC) via a two-step process. First, acrylonitrile was graft polymerized onto the substrate. The CMC-polyacrylonitrile graft copolymer was then treated with hydrazine to yield a triply modified cellulose containing amidrazone functional groups. The resin was characterized using infrared spectroscopy. The sorption capacity of the resin towards bivalent metal ions was evaluated versus variation of pH and hydrochloric acid concentration. The adsorption capacities at pH 6 were found to be in order Cu2+> Zn2+>Cd2+>Co2+>Ni2+. The metal ion sorption capacities were varied in the range of 2.0-20.0 mmol metal per gram resin. The time needed for copper sorption equilibration was found to be around 5 h
  5. Keywords:
  6. Acrylonitrile ; Amidrazone ; Carboxymethyl cellulose ; Graft polymerization ; Ion exchange ; Metal sorption ; Polysaccharide
  7. Source: Journal of Polymer Materials ; Volume 21, Issue 3 , 2004 , Pages 315-320 ; 09738622 (ISSN)
  8. URL: https://www.researchgate.net/publication/289275908_Modified_CMC_3_Carboxymethylcellulose-g-polyacrylamidrazone_as_a_new_metal_adsorbent