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Synthesis and characteristics of novel chelate fiber containing amine and amidine groups
Author(s) -
Shin Dong Hun,
Ko Young Gun,
Choi Ung Su,
Kim Woo Nyon
Publication year - 2004
Publication title -
polymers for advanced technologies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.61
H-Index - 90
eISSN - 1099-1581
pISSN - 1042-7147
DOI - 10.1002/pat.496
Subject(s) - polyacrylonitrile , ethylenediamine , aqueous solution , adsorption , chelation , amine gas treating , materials science , fiber , polymer chemistry , amidine , scanning electron microscope , nuclear chemistry , polymer , inorganic chemistry , chemistry , organic chemistry , composite material , metallurgy
A polyacrylonitrile (PAN) fiber was adopted for the backbone of a chelate polymer and poly(acrylo‐amidino ethylene amine) (PAEA) was prepared through a one‐step reaction between the PAN fiber and ethylenediamine (EDA). The maximum removal capacity and degree of substitution were 7.8 meq per gram of dried PAEA and 98%, respectively. The PAEA was tested as an adsorbent in single and two‐component metal aqueous solutions under changing pH. The Cu 2+ ion accomplished maximum adsorption amount at pH 3 and the order of maximum adsorbed amounts on PAEA is Cu 2+ > Ag + > Zn 2+ > Ni 2+ > Pb 2+ in molar basis. FT‐IR spectroscopy was employed to characterize the chemical bonding in metal aqueous solutions and surface morphology was examined using atomic force microscopy (AFM) and scanning electron microscopy (SEM). Copyright © 2004 John Wiley & Sons, Ltd.