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Synthetic resins. XVIII. Chelation ion exchange properties of 2,4‐dinitrophenylhydrazone of 4‐hydroxy acetophenone–formaldehyde resins
Author(s) -
Rath D. K.,
Lenka S.,
Nayak P. L.
Publication year - 1992
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/app.1992.070461206
Subject(s) - acetophenone , chemistry , formaldehyde , hydrazone , aqueous solution , solubility , metal ions in aqueous solution , ion exchange resin , ion exchange , catalysis , polymer chemistry , organic chemistry , inorganic chemistry , metal , ion
Abstract A large number of copolymers were synthesized by condensing 2,4‐dinitrophenyl hydrazone of 4‐hydroxy acetophenone (4HA 2,4 DNPH) with substituted benzoic acids/phenols and formaldehyde in the presence of NaOH or HCl as catalyst. The resins were characterized by IR spectra. The decomposition temperature, solubility parameter, and viscositv of the polymers have been determined. The ion‐exchange properties have been studied using the batch equilibrium method. The measurement of the distribution of a given metal ion between an aqueous solution and the resins has been performed. The investigation was carried out over a wide range of pH and varying the ionic strength of the medium. © 1992 John Wiley & Sons, Inc.