Synthesis of a novel crosslinked superabsorbent copolymer with diazacyclooctadecane crown ether and its sorption capability


Yilmaz S. , Kul D. , Erdol M. , OZDEMIR M., Abbasoglu R.

EUROPEAN POLYMER JOURNAL, vol.43, no.5, pp.1923-1932, 2007 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 43 Issue: 5
  • Publication Date: 2007
  • Doi Number: 10.1016/j.eurpolymj.2007.02.012
  • Title of Journal : EUROPEAN POLYMER JOURNAL
  • Page Numbers: pp.1923-1932
  • Keywords: superabsorbent, sorption, desorption, Freundlich and Langmuir isotherms, swelling ratio, ANIONIC MONOMERS, ACTIVATED CARBON, POLYMERS, ION, ACRYLAMIDE, ADSORPTION, CADMIUM

Abstract

A novel crosslinked poly(acrylic acid-copolymer-Kryptofix-22-DM) superabsorbent copolymer, poly(AA-co-Kry22-DM), was synthesised by the reaction of 4,13-dimethylacryloyl-1,7,10,16-tetraoxa-4,13-diazacyclooctadecane (Kyrptofix-22-DM) and acrylic acid (AA). Characterisation of the polymers was achieved by FTIR and H-1 NMR techniques. (2+) Sorption capacity of the crosslinked poly(AA-co-Kry22-DM) superabsorbent copolymer was investigated for Pb, CU2+, Cr3+, Cd2+, Mn2+, Zn2+, and Ni2+ heavy metal ions at different pH values using Freundlich and Langmuir isotherms. Swelling ratio, q(v) and distribution ratio, log D, values of the crosslinked poly(AA-co-Kry22-DM) superabsorbent copolymer were calculated at various pH values. (C) 2007 Elsevier Ltd. All rights reserved.