Abstract

Ashok Narhari Patange

DOI : http://dx.doi.org/10.13005/ojc/3404044

The study represents the evaluation of  performance of structurally related resins DuoliteARA 9366 and Duolite A-378 exposed to UV radiations of wavelength λ=254nm and λ = 384nm for 24 h in a UV Chamber and equilibrated separately with iodide ion solutions of different concentrations between temperature of 30.0^oC -  45.0^oC for 5 h .the equilibrium constants (K) values for  Cl^-/I^- reactions with temperature for DuoliteARA-9366  were decreases from  21.57 x 10^-2 to  15.57 x 10^-2 for resin degraded at UV radiation of 384nm  was lower than the decrease in K values from 26.22 x 10^-2 to 19.92 x10^-2 observed for the resin degraded at UV radiation of wavelength λ=254nm. Similar results were obtained for DuoliteA378 .The UV degradation of the resin surfaces were recognized by SEM and IR. The high K and low enthalpy values obtained for DuoliteARA-9366 shows that DuoliteARA-9366 was more selective towards iodide ions in solution than DuoliteA-378.

Duolite ARA-9366; Duolite A-378 UV Radiation Degradation; Fourier Transform Infrared Spectroscopy (FTIR) and (SEM) Nuclear Grade Resins; Scanning Electron Microscopy

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