Volume No. 7 Issue No.: 1A Page No.: 330-337 July-September 2012

 

STUDIES OF CHELATION ION-EXCHANGE PROPERTIES OF COPOLYMER RESIN DERIVED FROM P-CRESOL, DITHIO OXAMIDE AND FORMALDEHYDE

 

Katkamwar Sharayu S.1, Ahmed Mudrika2 and Gurnule Wasudeo B.*3

1. Department of Chemistry, Arts, Commerce and Science collge, Tukum, Chandrapur (INDIA) 2. Department of Chemistry, Priyadashani College of Engineering, Nagpur (INDIA) 3. Department of Chemistry, Kamla Nehru College, Sakkardara, Nagpur, (INDIA)

 

Received on : May 05,2012

 

ABSTRACT

 

Copolymer resin was prepared by the condensation of p-cresol and dithiooxamide with formaldehyde in the presence of hydrocloric acid catalyst and using varied molar ratios of reacting monomers. Copolymer resin composition have been determined on the basis of their elemental analysis and number average molecular weights of these resins were determined by conductometric titrations in non-aqueous medium. The viscosity measurement carried out in DMF indicate normal behavior. UV-visible, IR and NMR spectra were studied to elucidate the structure. Ion-exchange properties of this copolymer resin was studied for Fe3+, Cu2-, Ni2+, Co2+, Zn2+, Cd2+ and Pb2+ ions. A batch equilibrium method was employed in the study of the selectivity of metal-ion uptake involving the measurements of the distribution of a given metal ion between the copolymer sample and a solution containing the metal ion. The study was carried out over a wide pH range and in media of various ionic strengths.

 

Keywords : Copolymer resin, Ion-exchange properties, p-cresol, Dithio oxamide

 

 

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