Synthesis and evaluation of a novel polycarbonate grafted poly (glycidyl methacrylate) resin for sorption of 131I

To synthesize Q[A(PC-g-PGMA), Glycidyl Methacrylate (GMA) was grafted onto Polycarbonate (PC) using a radiation-induced grafting technique, followed by amination and quaternization. It was studied how total concentration, monomer concentration, and absorbed dosage affect the degree of grafting (DG). FTIR, SEM, and TGA were used to describe the structure of the resultant Q[A(PC-g-PGMA)]. Q[A(PC-g-PGMA)] was utilized in a batch procedure to investigate the sorption efficiency of I-131 in varied concentrations of HCl and/or HNO3 solutions. The results showed that 0.01 M HNO3 is the optimum medium for high retention of I-131, with a maximum capacity of 187 mg/g. The kinetic and isotherm data of I-131 adsorption revealed that it followed the Pseudo-secondorder and Freundlich models, respectively. The sorption process of I-131 was discovered to be endothermic and spontaneous after studying thermodynamic parameters such as enthalpy change (Delta H degrees), free energy change (Delta G degrees) and entropy change (Delta S degrees).

Automated summary

Glycidyl Methacrylate (GMA) was grafted onto Polycarbonate (PC) using a radiation-induced grafting technique, followed by amination and quaternization to synthesize Q[A(PC-g-PGMA)]. The effects of total concentration, monomer concentration, and absorbed dosage on the degree of grafting (DG) were studied. The structure of the resultant Q[A(PC-g-PGMA)] was characterized using FTIR, SEM, and TGA. Q[A(PC-g-PGMA)] was used in a batch procedure to investigate the sorption efficiency of I-131 in varied concentrations of HCl and/or HNO3 solutions. The thermodynamic parameters indicated that the sorption process of I-131 was endothermic and spontaneous.