Thin film of poly(bis[2-(methacryloyloxy)ethyl]phosphate) grafted on surface of poly(ether sulfone) membrane for plutonium(IV)-selective alpha tracks registration in CR-39 detector

Functionalized Polymer Thin Films for Plutonium Capture and Isotopic Screening from Aqueous Sources

“…The second approach is formation of a functional thin film on a substrate by chemical modification. Films of this type can be prepared by chemical reaction between the ligand and substrate and various methods of graft polymerization. − Graft polymerization lends itself well to substrates composed of photoreactive polymers such as poly­(ether sulfone) (PES), where the sulfur linkages can be cleaved under ultraviolet radiation to form radical sites for ligand grafting . Paul et al followed this method to graft polymers of phosphoric acid 2-hydroxyethyl methacrylate ester and 2-acrylamido-2-methyl-1-propanesulfonic acid from commercial PES membranes for the extraction and quantification of Pu using isotope dilution alpha spectrometry.…”