The uranium recovery from aqueous solutions using amidoxime modified cellulose derivatives. I. Preparation, characterization and amidoxime conversion of radiation grafted ethyl cellulose-acrylonitrile copolymers


Basarir S. S. , Bayramgil N. P.

RADIOCHIMICA ACTA, cilt.100, sa.12, ss.893-899, 2012 (SCI İndekslerine Giren Dergi) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 100 Konu: 12
  • Basım Tarihi: 2012
  • Doi Numarası: 10.1524/ract.2012.1983
  • Dergi Adı: RADIOCHIMICA ACTA
  • Sayfa Sayıları: ss.893-899

Özet

Graft copolymers were prepared by Co-60-gamma irradiation of binary mixture of ethyl cellulose (EC) and acrylonitrile (AN). Conversion %-dose graphs were obtained, and 95% copolymer yield has been reached at around 8 kGy dose. Conversion of nitrile groups to amidoxime (AO) were achieved by aqueous solutions of NH2OH center dot HCI-NaOH at 50 degrees C. The amidoxime conversion was followed by using FTIR spectrophotometer and determined as percentage. After 72 h period, nearly 100% amidoxime conversion was provided. The structures of EC-g-AN and EC-g-AO were characterized by FTLR/ATR, TGA, and SEM methods.