20.500.12556/DKUM-96497 High-porosity conjugated polyelectrolytes synthesized via Sonogashira–Hagihara coupling in concentrated emulsions robust adsorptive–photocatalytic hydrogels for water pollutant removal Conjugated polyelectrolyte (CPE) hydrogels uniquely combine π-conjugation, ionic functionality, and water compatibility in a single-polymer network. This work reports on the design, synthesis, and application of high-porosity CPE hydrogels obtained via the Sonogashira–Hagihara cross-coupling reaction as a polymerization chemistry in a high internal phase emulsion (HIPE) template. In this way, we combine the hydrophilic and π-conjugated electronic properties of CPEs with the high porosity of polymerized high internal phase emulsions (polyHIPEs or PHs), enabling the development of a multifunctional polymer platform. High-porosity CPE-PHs exhibit a surface area of up to 355 m2·g–1, excellent water uptakes of up to ∼25 g·g–1, and visible-light absorption with band edges at 720 and 610 nm and band gaps of 2.35 and 2.47 eV for anionic CPE-PH–SO3̅ and cationic CPE-PH-NMe3+, respectively. These CPE-PHs are then used to remove the endocrine-disrupting chemical bisphenol A (BPA) as a model water pollutant. The CPE-PH–SO3̅ demonstrates exceptional performance, achieving overall removal efficiencies of 93% and 96% through synergistic adsorption (∼71% and ∼50%, respectively) and visible light-driven photocatalysis (∼22% and ∼46%, respectively) during 8 and 24 h experiments. These efficiencies are among the highest reported for organic photocatalyst. In contrast, the cationic analogue CPE-PH-NMe3+ suffers from oxidative degradation and thus limited activity. Stability studies confirmed that CPE-PH–SO3̅ retains its structural and electronic integrity during prolonged operation. These results demonstrate the potential of high-porosity CPE-PH hydrogels as a multifunctional polymer platform that synergistically integrates adsorption and heterogeneous photocatalysis for robust and efficient water applications. adsorption degradation hydrogels oxides polymers adsorpcija degradacija hidrogeli polimeri oksidi true false true ACS Publications Angleški jezik Slovenski jezik https://pubs.acs.org/journal/mamobx?ref=breadcrumb © 2026 The Authors. Članek v reviji 2026-01-14 14:18:11 2026-01-14 14:18:11 2026-07-18 03:13:00 0000-00-00 00:00:00 2026 0 0 12 str. January 6, 2026 0000-00-00 Zaloznikova Objavljeno NiDoloceno 2025-08-22 2025-12-28 2026-01-06 54 263738371 10.1021/acs.macromol.5c02304 1520-5835 high-porosity-conjugated-polyelectrolytes-synthesized-via-sonogashira-hagihara-coupling-in-concentrated-emulsions.pdf high-porosity-conjugated-polyelectrolytes-synthesized-via-sonogashira-hagihara-coupling-in-concentrated-emulsions.pdf 1 988A8F29B2294FB6072C09A7092AA94E abdce85dcb5ce0a4cca437224acb76219d1f403936264b525d1e6738e8917a97 b3616135-81bd-11f1-a6d3-00155d580e34 https://dk.um.si/Dokument.php?lang=slv&id=208359 https://pubs.acs.org/doi/10.1021/acs.macromol.5c02304 0 75ca50b2-0000-11f1-90fc-00155d581219 https://dk.um.si/Dokument.php?lang=slv&id=202922 Fakulteta za kemijo in kemijsko tehnologijo 0 0 0