20.500.12556/DKUM-97887 Sulfonated co-poly(arylene-ethynylene) polyHIPE hydrogels synthesis and structure–activity relationships Porous π-conjugated hydrogels with ionizable side groups provide an attractive strategy for creating water-compatible semiconducting polymer networks. Here, we report a family of sulfonated co-poly(arylene-ethynylene) polyHIPE hydrogels synthesized by Pd-catalyzed Sonogashira polycondensation within oil-in-oil high internal phase emulsion (HIPE) templates. This work demonstrates that copolymer composition and ionic functionality in π-conjugated polyHIPE materials can be systematically used to tune swelling behavior, photophysical properties, and interfacial reactivity, highlighting the versatility of conjugated polyelectrolytes asfunctional polymeric platforms. By varying the ratio of ionic 1,4-diiodo-2,5-bis(3-sulfonatopropoxy)benzene and neutral diiodobenzene monomers (100:0, 80:20, 50:50, and 20:80), we obtained a series of copolymers with highly interconnected macroporosity (>90%) and pronounced water affinity. Increasing sulfonate content systematically affected water uptake, network swelling, and optical properties, revealing clear structure–property relationships within the conjugated polyHIPE framework. Removal of bisphenols was used as a model function to investigate the combined effects of ionic content, porosity, and electronic structure on activity at the polymer–water interface, specifically adsorption and photocatalysis in water. Among the series, PAESO3-80 exhibited the most balanced combination of adsorption capacity and photocatalytic reactivity, illustrating that copolymer composition can be used to optimize the performance of conjugated polyelectrolyte polyHIPE networksin aqueous environments. porous polymers hydrogels HIPEs polimeri porozni polimeri hidrogeli true false true Wiley Angleški jezik Slovenski jezik https://onlinelibrary.wiley.com/journal/14392054 Članek v reviji 2026-04-22 16:03:47 2026-04-22 16:03:47 2026-07-10 14:30:33 0000-00-00 00:00:00 2026 0 0 9 str. št. 4, št. članka e70213 Letn. 311 2026 0000-00-00 Zaloznikova Objavljeno NiDoloceno 2026-01-26 2026-03-13 2026-04-02 66.02 274160131 10.1002/mame.70213 1439-2054 Sulfonated_Co-Poly(arylene-ethyn-Markovic-2026.pdf Sulfonated_Co-Poly(arylene-ethyn-Markovic-2026.pdf 1 CAF6163771ABA6D411602DB002E00051 80a0d04df70f05eb5a6fc78911f7f96c737a506abd40e51e5b745a153b89a856 650d67f7-3e54-11f1-bc9c-00155d0001a1 https://dk.um.si/Dokument.php?lang=slv&id=205544 https://onlinelibrary.wiley.com/doi/epdf/10.1002/mame.70213 0 d7efac6c-7c5a-11f1-bb23-00155d580e34 https://dk.um.si/Dokument.php?lang=slv&id=208154 Fakulteta za kemijo in kemijsko tehnologijo 0 0 0