| Title: | PAMPS PolyHIPEs : the role of shape, porosity, and sulfonate group density on metal-ion adsorption from water |
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| Authors: | ID Kovačič, Sebastijan (Author)
ID Vladušić, Roko (Author) |
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| Files: |  J_of_Applied_Polymer_Sci_-_2025_-_Kovacic_-_PAMPS_PolyHIPEs__The_Role_of_Shape__Porosity__and_Sulfonate_Group_Density_on.pdf (949,13 KB)
MD5: A18AFBC43A13B94E50701293BD8CAC6D
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| Language: | English |
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| Work type: | Article |
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| Typology: | 1.01 - Original Scientific Article |
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| Organization: | FKKT - Faculty of Chemistry and Chemical Engineering
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| Abstract: | 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. |
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| Keywords: | emulsion polymerization, hydrophilic polymers, polyelectrolytes |
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| Publication status: | Published |
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| Publication version: | Version of Record |
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| Submitted for review: | 24.09.2025 |
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| Article acceptance date: | 26.11.2025 |
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| Publication date: | 08.12.2025 |
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| Publisher: | Wiley |
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| Year of publishing: | 2025 |
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| Number of pages: | 9 str. |
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| PID: | 20.500.12556/DKUM-96250  |
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| UDC: | 66 |
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| ISSN on article: | 1097-4628 |
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| COBISS.SI-ID: | 260661507 |
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| DOI: | 10.1002/app.70146 |
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| Copyright: | © 2025 The Author(s). |
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| Publication date in DKUM: | 12.12.2025 |
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| Views: | 198 |
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| Downloads: | 9 |
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| Metadata: |    |
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| Categories: | Misc.
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