20.500.12556/DKUM-96250 PAMPS PolyHIPEs the role of shape, porosity, and sulfonate group density on metal-ion adsorption from water In this study, the adsorption performance of poly(2-acrylamido-2-methylpropanesulfonic acid) (PAMPS)-based polymerizedhigh internal phase emulsion (polyHIPE) for the removal of Zn 2+, Fe3+, and Al 3+ ions from water is investigated. The triple-factoranalysis includes the role of shape, porosity, and sulfonate group density. By systematically comparing different forms of PAMPS,that is, polyHIPE beads and monoliths (shape effect), PAMPS homopolymers and copolymers ( SO3− group density effect), andporous polyHIPEs compared to commercially available gel-type, non-macroporous beads (porosity effect), we determine howstructure–function relationships govern metal ion uptake. The results show ion-specific effects: The high charge density of Fe3+and Al 3+ generates a strong electrostatic driving force for multipoint binding to SO3− groups, which leads to fast adsorption. Incontrast, Zn 2+ adsorption is slower due to its lower charge density and the relatively stable hydration sphere. It therefore appearsto be diffusion-limited compared to Fe3+ and Al 3+. These results show how the polymer architecture can be tuned to optimizeadsorption efficiency, selectivity, and robustness. Such a design principle of PAMPS-based polyHIPEs demonstrates a strategy tocustomize adsorbents for advanced water treatment applications. emulsion polymerization hydrophilic polymers polyelectrolytes emulzijska polimerizacija polimeri polielektroliti true false true Wiley Angleški jezik Slovenski jezik https://onlinelibrary.wiley.com/journal/10974628 © 2025 The Author(s). Članek v reviji 2025-12-12 09:49:05 2025-12-12 09:49:05 2026-05-28 03:08:51 0000-00-00 00:00:00 2025 0 0 9 str. First published: 08 December 2025 0000-00-00 Zaloznikova Objavljeno NiDoloceno 2025-09-24 2025-11-26 2025-12-08 66 260661507 10.1002/app.70146 1097-4628 J_of_Applied_Polymer_Sci_-_2025_-_Kovacic_-_PAMPS_PolyHIPEs__The_Role_of_Shape__Porosity__and_Sulfonate_Group_Density_on.pdf J_of_Applied_Polymer_Sci_-_2025_-_Kovacic_-_PAMPS_PolyHIPEs__The_Role_of_Shape__Porosity__and_Sulfonate_Group_Density_on.pdf 1 A18AFBC43A13B94E50701293BD8CAC6D 8d3b938019a2130cc3dc56de47cd1c492de66ff2cb891d7586da6561aa2e35f5 111596cd-59d7-11f1-8108-00155d580e34 https://dk.um.si/Dokument.php?lang=slv&id=206472 Fakulteta za kemijo in kemijsko tehnologijo 0 0 0