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Synthesis, Charecterization and Chelation Ion-Exchange
Studies of a Resin Copolymer Derived from
8-Hydroxyquinoline-Formaldehyde-Catechol
B.A. Shaha,*, A.V. Shahb, B.N.
Bhandaria and R.R. Bhatta
a Department of Chemistry,
Veer Narmad South Gujarat University, Surat-7, Gujarat, India
bDepartment of Chemistry, Polytechnic, Vidhyabharti Trust,
Umrakh, Bardoli, Gujarat, India
(Received 3 April 2007, Accepted 4 August 2007)
A chelating ion exchange
resin was synthesized from 8-hydroxyquinoline and catechol using
formaldehyde as a cross linking agent at 120 � 2 �C in DMF solution. The
resin was characterized by FTIR and elemental analysis. The morphology
of the synthesized resin was studied by optical photograph and scanning
electron microscopy (SEM). Various kinetic parameters such as energy of
activation (Ea), enthalpy of activation (H�),
entropy of activation (S�), free energy of activation (G�),
order of reaction (n) and pre-exponential factor (A) of various steps of
thermal decomposition have been calculated from thermogravimertic
results. The physico-chemical properties of the resin have been studied.
The total cation exchange capacity was measured and effect of pH and
metal ion concentration on ion exchange capacity were studied. The rate
of cation exchange reactions and distribution co-efficient values in
tartaric acid media at different pH were also studied using batch
equilibration method.
Keywords: Chelating resin, Batch equilibration,
Kinetic parameters, Distribution coefficient
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