Effects of natural rubber latex fraction to glycidyl methacrylate on grafting polymerization and its application as Th4+ and UO2 2+ ions bio adsorbent

Natural rubber (NR) latex was modified by in situ gamma radiation-induced grafting copolymerization of glycidyl methacrylate (GMA). NR latex to GMA emulsion ratio of 100:0, 50:50, 40:60, 30:70 and 20:80 have been investigated at the absorbed dose of 150kGy. The grafted GMA natural rubber-based follow the subsequent chemical modification to anchor phosphate group by open up the epoxy ring. The modified NR was characterized by Fourier transform infrared. Demonstration of modified NR on Th⁴⁺ and UO₂ ²⁺ ions adsorption in 25ml of 10ppm standard solution gave 95% and 28% percentage removal respectively.