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Poly( N,N ′‐dimethylacrylamide‐ co ‐acrylic acid): Synthesis, characterization, and application for the removal and separation of inorganic ions in aqueous solution
Author(s) -
Rivas B. L.,
Pooley S. A.,
Soto M.,
Maturana H. A.,
Geckeler K. E.
Publication year - 1998
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/(sici)1097-4628(19980103)67:1<93::aid-app11>3.0.co;2-6
Subject(s) - acrylic acid , aqueous solution , metal ions in aqueous solution , copolymer , polymer chemistry , polymer , metal , polymerization , chemistry , size exclusion chromatography , radical polymerization , nuclear chemistry , organic chemistry , enzyme
The synthesis of poly ( N,N ′‐dimethylacrylamide‐ co ‐acrylic acd) under different feed molar ratios was carried out by radical polymerization. Both homopolymers were also synthesized to compare the metal ion binding abilities. All polymers were water‐soluble and were characterized by FTIR, 1 H‐NMR, 13 C‐NMR, and TGA. The metal complexing properties for the metals Cu(II), Co(II), Ni(II), Cd(II), Zn(II), Pb(II), Hg(II), Cr(III), and Fe(III) in the aqueous phase were investigated using the liquid‐phase polymer‐based retention (LPR) method. The metal ion interactions with the hydrophilic polymer were determined as a function of pH and the filtration factor. According to the interaction pattern obtained, the metal ions form the most stable complexes with the copolymer poly( N,N ′‐dimethylacrylamide‐ co ‐acrylic acid) within the pH range 5–7. Hg(II) was not retained at all the pH ranges investigated. © 1998 John Wiley & Sons, Inc. J Appl Polym Sci 67: 93–100, 1998