O-cresol, thiourea and formaldehyde terpolymer-A cation exchange resin
Joint Authors
Karunakaran, M.
Vijayakumar, C. T.
Selvan, D. Muthamil
Magesh, C.
Source
Journal of Saudi Chemical Society
Issue
Vol. 17, Issue 1 (31 Jan. 2013), pp.1-8, 8 p.
Publisher
Publication Date
2013-01-31
Country of Publication
Saudi Arabia
No. of Pages
8
Main Subjects
Abstract EN
o-Cresol–thiourea–formaldehyde terpolymer resin was synthesized through the condensation of o-cresol and thiourea with formaldehyde in the mole ratio 1:3:5 in the presence of 2 M hydrochloric acid as a catalyst.
The resulting copolymer was characterized with IR and 1H NMR spectral data.
The average molecular weight of the resin was determined by Gel permeation chromatography.
Thermal study of the resin was carried out to calculate the activation energy (Ea), enthalpy of activation (H), entropy of activation (S), free energy of activation (G), and preexponential factor (A) of various steps of thermal decomposition of the terpolymer.
The Dharwadkar and Kharkhanavala method has been used to calculate thermal activation energy and thermal stability.
The chelation ion-exchange properties were also studied with the batch equilibrium method.
The chelation ion-exchange properties of the copolymer was studied for Fe3+, Co2+, Ni2+, Cu2+, Zn2+, Pb2+ and Cd2+ ions.
The resin was proved to be selective chelating ion-exchange copolymer for certain metals.
The study was carried out over a wide pH range and in media of various ionic strengths.
American Psychological Association (APA)
Karunakaran, M.& Vijayakumar, C. T.& Selvan, D. Muthamil& Magesh, C.. 2013. O-cresol, thiourea and formaldehyde terpolymer-A cation exchange resin. Journal of Saudi Chemical Society،Vol. 17, no. 1, pp.1-8.
https://search.emarefa.net/detail/BIM-351527
Modern Language Association (MLA)
Karunakaran, M.…[et al.]. O-cresol, thiourea and formaldehyde terpolymer-A cation exchange resin. Journal of Saudi Chemical Society Vol. 17, no. 1 (Jan. 2013), pp.1-8.
https://search.emarefa.net/detail/BIM-351527
American Medical Association (AMA)
Karunakaran, M.& Vijayakumar, C. T.& Selvan, D. Muthamil& Magesh, C.. O-cresol, thiourea and formaldehyde terpolymer-A cation exchange resin. Journal of Saudi Chemical Society. 2013. Vol. 17, no. 1, pp.1-8.
https://search.emarefa.net/detail/BIM-351527
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 8
Record ID
BIM-351527