Synthesis of resin IV: Salicylic acid, diaminonaphthalein, and formaldehyde terpolymer and its ion exchange | Zendy

Masram Dhanraj T. | Zendy; Bhave Narayan S. | Zendy; Kariya Kiran P. | Zendy

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Synthesis of resin IV: Salicylic acid, diaminonaphthalein, and formaldehyde terpolymer and its ion exchange

Author(s) -

Masram Dhanraj T.,

Bhave Narayan S.,

Kariya Kiran P.

Publication year - 2010

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.31110

Subject(s) - formaldehyde , inorganic chemistry , ion exchange , titration , chemistry , metal ions in aqueous solution , hydrochloric acid , copolymer , ion exchange resin , nuclear chemistry , infrared spectroscopy , selectivity , chelation , polymer chemistry , salicylic acid , metal , polymer , materials science , catalysis , ion , organic chemistry , biochemistry

This article reports the synthesis, characterization, and ion exchange properties of a terpolymer. The terpolymer resin salicylic acid‐diaminonaphthalein‐formaldehyde (SDNF) was synthesized by the condensation of salicylic acid and diaminonaphthalein with formaldehyde in the presence of a hydrochloric acid catalyst. Terpolymer resin was characterized by elemental analysis, infrared (IR) spectroscopy, nuclear magnetic resonance spectroscopy, and UV–Visible spectral studies. The number average molecular weight of the resin was determined by nonaqueous conductometric titration. Chelation ion exchange properties have also been studied for Fe 3+ , Cu 2+ , Ni 2+ , Co 2+ , Zn 2+ , Cd 2+ , Pb 2+ ions employing a batch equilibrium method. It was employed to study the selectivity of metal ion uptake involving the measurements of distribution of a given metal ion between the polymer sample and a solution containing the metal ion. The study was carried out over wide pH range and in a media of various ionic strengths. The terpolymer showed higher selectivity for Fe 3+ , Cu 2+ , and Ni 2+ ions than for Co 2+ , Zn 2+ , Cd 2+ , and Pb 2+ ions. © 2010 Wiley Periodicals, Inc. J Appl Polym Sci, 2010

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