Qi Feng , Chengwen Wang , Wenjian Yue , Chengli Wang , Tao Song
{"title":"Mechanism of rigid functional groups on the temperature resistance of fluid loss additives for well cementing","authors":"Qi Feng , Chengwen Wang , Wenjian Yue , Chengli Wang , Tao Song","doi":"10.1016/j.reactfunctpolym.2025.106314","DOIUrl":"10.1016/j.reactfunctpolym.2025.106314","url":null,"abstract":"<div><div>To tackle the existing gap in our understanding of the degradation mechanisms of fluid loss additives in high-temperature cement slurry environments and reveal the role of monomers with highly rigid functional groups in improving the stability of polymer chains at high temperature, we synthesized several high-temperature resistant fluid loss additives using monomers with highly rigid functional groups, including sodium styrene sulfonate (SSS) and N-vinyl pyrrolidone (NVP), separately. High-temperature fluid loss control property experiments demonstrated that the introduction of rigid functional groups effectively enhances the temperature resistance of fluid loss additives, while also maintaining favorable dehydration performance at lower dosages. High-temperature fluid loss control property experiments and aging experiments demonstrated that the introduction of rigid functional groups effectively enhances the temperature resistance of fluid loss additives. At 220 °C, the fluid loss decreases to below 64 % of the initial level The effects of introducing rigid functional groups on the interaction between fluid loss additives and cement particles at elevated temperatures were investigated through zeta potential, particle size, and high-resolution microscopy analysis. Additionally, TGA, IR, <sup>1</sup>H NMR, and GPC tests were conducted on the fluid loss additives after aging at 220 °C to examine the impact of rigid groups,while the molecular weight retention rate can increase from 48.03 % to over 62.21 %. The results indicate that branched chain and main chain in high-temperature cement slurry environments critically undermines polymer integrity, ultimately leading to functional failure. At same time, compared with NVP, SSS relies on the temperature resistance of the benzene ring, which enables it to have higher temperature resistance and retain more sulfonic acid groups. This will help improve the performance of water loss agents at high temperatures and provide strategic design principles for the development of high-temperature resistant cement slurry systems.</div></div>","PeriodicalId":20916,"journal":{"name":"Reactive & Functional Polymers","volume":"214 ","pages":"Article 106314"},"PeriodicalIF":4.5,"publicationDate":"2025-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143948260","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pía Fica , Alexander Córdoba , Oscar Ramírez , Sebastián Castillo , Alejandro Muñoz , Bárbara Vásquez , Javier Valdebenito , Angie C. Forero-Girón , Diego Cortés-Arriagada , César Saldias , Ángel Leiva
{"title":"Hierarchical polymeric nanocomposite for water remediation: Electrospun nanofibers of a poly (ionic liquid) and TiO2 nanoparticles for adsorption and photocatalytic removal of rhodamine B","authors":"Pía Fica , Alexander Córdoba , Oscar Ramírez , Sebastián Castillo , Alejandro Muñoz , Bárbara Vásquez , Javier Valdebenito , Angie C. Forero-Girón , Diego Cortés-Arriagada , César Saldias , Ángel Leiva","doi":"10.1016/j.reactfunctpolym.2025.106316","DOIUrl":"10.1016/j.reactfunctpolym.2025.106316","url":null,"abstract":"<div><div>Herein we proposed a novel material that consisted in an electrospun nanocomposite made by the combination of TiO<sub>2</sub> NPs embedded over a mat of nanofibers composed by a polymer blend of poly (vinyl pyrrolidone) (PVP) and a poly(ionic liquid) (PIL) obtained by electrospinning process. The PIL consisted of positively charged N-ethylated poly(vinylimidazole) anchored with a bis(trifluoromethylsulfonyl imide) (NTf<sub>2</sub><sup>−</sup>) counterion. Polymers and materials were characterized by several experimental techniques, as well as the interaction between the components (polymers and inorganic NPs), which was also sustained by computational tools. The processing protocol for the electrospinning enabled the obtention of PILs as nanofibers with average diameters below 500 nm in all cases, process that was optimized in terms of applied voltage and PIL concentration in the polymer solution by a design of experiment (DOE) approach of 2 factors and 3 levels. The use of DOE allowed the obtention of appropriate experimental conditions to minimize nanofibers diameter to 93 nm also with an adequate dispersion of the same. The nanocomposite made from TiO<sub>2</sub> NPs supported on PVP-PIL nanofibers demonstrated excellent capability to adsorb anionic pollutants like Rhodamine B (RhB), revealing an adsorption capacity of 41 mg/g with a kinetic of pseudo first order, suggesting that electrostatic interactions of cationic PILs with the anionic dye, are the main driven force for the adsorption process. Model experiment demonstrated that this system was capable of removing almost 61.0 % of RhB molecules from aqueous solutions. Additionally, TiO<sub>2</sub> NPs within the nanofibers allowed to further remove RhB from the aqueous solutions using UV irradiation to degrade the pollutant in an additional 10.2 % of dye removal.</div></div>","PeriodicalId":20916,"journal":{"name":"Reactive & Functional Polymers","volume":"214 ","pages":"Article 106316"},"PeriodicalIF":4.5,"publicationDate":"2025-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144068092","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Ultrasound-assisted synthesis of multilayer Ag@PDA/cellulose nanofibers conductive films with superior EMI shielding and energy storage applications","authors":"Jagdeep Singh , A.S. Dhaliwal","doi":"10.1016/j.reactfunctpolym.2025.106317","DOIUrl":"10.1016/j.reactfunctpolym.2025.106317","url":null,"abstract":"<div><div>In this study, cellulose nanofibers (CNFs) derived from sugarcane bagasse have been modified with polydopamine (PDA) and subsequently decorated with multilayers of silver nanowires (AgNWs) and nanoparticles (AgNPs) using ultrasound-assisted techniques to fabricate lightweight, flexible conductive films. A wide range of analytical methods was used to study the films' optical, chemical, structural, electrical, mechanical properties, and surface morphology, revealing that the films exhibit desired energy storage and electromagnetic interference (EMI) shielding characteristics. The synthesized AgNWs@PDA/CNFs and AgNPs@PDA/CNFs films showed remarkable total EMI shielding effectiveness of approximately 82.5 and 61 dB, respectively, in the X-band (8–12 GHz) frequency range. In addition, the electrochemical studies showed that the AgNWs@PDA/CNFs and AgNPs@PDA/CNFs have specific capacitance values of 1038 F/g and 711 F/g, respectively, as well as energy densities of 113.74 Wh/kg and 89.12 Wh/kg. After 10,000 cycles, the AgNWs@PDA/CNFs had an excellent capacitance retention of 92 %, and the AgNPs@PDA/CNFs had an excellent retention rate of 90 %. The exceptional efficiency of synthetic films in electromagnetic interference (EMI) shielding and energy storage is due to their one-of-a-kind porous continuous nanostructure, which also causes joule heating, numerous reflections, high electrical conductivity, and enhanced ion transport. These conductive, flexible films are ideal for enhanced electromagnetic interference (EMI) shielding and energy storage due to the synergistic features of AgNWs and AgNPs with PDA/CNFs substrate.</div></div>","PeriodicalId":20916,"journal":{"name":"Reactive & Functional Polymers","volume":"214 ","pages":"Article 106317"},"PeriodicalIF":4.5,"publicationDate":"2025-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143906846","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Fully biobased epoxy vitrimers from phloroglucinol triglycidyl ether and 2,5-furandicarboxylic acid","authors":"Giulia Altamura, Marta Mazzucchelli, Eleonora Manarin, Anastasiia Nosova, Gianmarco Griffini, Stefano Turri","doi":"10.1016/j.reactfunctpolym.2025.106315","DOIUrl":"10.1016/j.reactfunctpolym.2025.106315","url":null,"abstract":"<div><div>The use of non-renewable resources and hardly recyclable materials in the polymer industry and the related environmental concerns have led to intensive research for implementing more sustainable technologies compliant with the circular economy and green chemistry principles. Among the several possibilities, biobased vitrimeric materials to be used as an alternative to conventional thermosets represent an appealing solution. In this work, phloroglucinol triglycidyl ether was used as biobased epoxy resin in formulation with 2,5-furandicarboxylic acid. Different compositions were investigated by varying the carboxylic acid/epoxy molar ratio. The formulation with a ratio equal to 0.4 showed the best balance in terms of thermo-mechanical properties and pot life, and it was further optimized by adding a biobased reactive epoxy diluent from sorbitol at different weight percentages. The obtained crosslinked materials showed high gel content (> 99 %) and glass transition temperature in the 140–180 °C range, in line with standard oil-based epoxy systems. Due to the presence of both ester bonds and free hydroxy groups, the systems exhibited a vitrimeric response based on transesterification exchange reactions through an Arrhenius-type behavior, leading to a fast stress relaxation process. In addition, repeatable post-cure thermoformability and effective chemical recycling were demonstrated on tailored formulations based on these dynamic systems upon the incorporation of a biobased epoxy reactive diluent or an anhydride-based co-curing agent. This work provides the first example of fully biobased epoxy vitrimers based on 2,5-furandicarboxylic acid, further advancing the development of reusable and recyclable by-design biobased epoxy systems for sustainable manufacturing.</div></div>","PeriodicalId":20916,"journal":{"name":"Reactive & Functional Polymers","volume":"214 ","pages":"Article 106315"},"PeriodicalIF":4.5,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143929027","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Han Wu , Rongsheng Shen , Zihan Li , Dengfeng Wang , Lin Liu , Kai Yang , Xinxin Chen , Michał Puchalski , Juming Yao
{"title":"Tough, stretchable, waterproof and biodegradable lignocellulosic films derived from fully physical interactions","authors":"Han Wu , Rongsheng Shen , Zihan Li , Dengfeng Wang , Lin Liu , Kai Yang , Xinxin Chen , Michał Puchalski , Juming Yao","doi":"10.1016/j.reactfunctpolym.2025.106312","DOIUrl":"10.1016/j.reactfunctpolym.2025.106312","url":null,"abstract":"<div><div>Cellulose films (CF) stand out among petroleum-based plastics due to their resource abundance, renewability, biodegradability and nontoxicity, but are hindered by the water sensitivity and poor mechanical performances. Herein, inspired by the cellulose/lignin network structure in natural bamboo, tough, stretchable and waterproof lignocellulosic film (LCF) was developed by embedding lignin into CF via physical impregnation. Lignin serving as natural binder was filled into the gaps between lamellar fibers of the swollen cellulose film and adhered onto cellulose fiber surfaces via intermolecular hydrogen bonding. The synergistic effect of densified structure and strong interfacial adhesion promoted the mechanical properties and water stability of the resulting LCF. The tensile strength of LCF reached to 73.37 MPa and was improved by 79.8 % when compared with CF. Even immersing in water for 30 d, LCF still presented remarkable mechanical performances with mechanical strength of 60.88 MPa, strain of 10.04 %. Synergistically, the incorporation of lignin also enhanced the thermal stability, antioxidant, UV shielding properties of LCF. Although the biodegradability of LCF was reduced by comparing with CF, it was still regenerable for sustainable usage. Therefore, this work provides not only a convenient method to fabricate lignocellulosic film, but also a high-performance full-biomass film that promises to replace nonbiodegradable petrochemical plastic.</div></div>","PeriodicalId":20916,"journal":{"name":"Reactive & Functional Polymers","volume":"214 ","pages":"Article 106312"},"PeriodicalIF":4.5,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143906902","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A semi-interpenetrating network organic gel acrylic optical pressure sensitive adhesive designed for flexible display","authors":"Jinbiao Min, Jinqing Qu","doi":"10.1016/j.reactfunctpolym.2025.106311","DOIUrl":"10.1016/j.reactfunctpolym.2025.106311","url":null,"abstract":"<div><div>The development of flexible electronic devices has created new demands for fatigue-resistant bonding materials in foldable displays. Traditional optical pressure-sensitive adhesives struggle to balance the trade-off between high crosslinking density (for creep resistance) and superior bonding performance. Although enhanced crosslinking can effectively mitigate folding-induced deformation, it reduces wettability and causes stress concentration. In this study, we developed a semi-interpenetrating organic gel system. The crosslinked rigid network effectively mitigates permanent creep, while incorporating uncrosslinked polyacrylate and urea-containing polar molecules enables dynamic hydrogen bond formation. Owing to their high polarity and molecular mobility, these dynamic hydrogen bonds can undergo rapid reorganization, thereby effectively dissipating mechanical energy. Consequently, the resulting material exhibits excellent bonding strength (14.5 N/25 mm), high light transmittance (>92 %), and remarkable fatigue resistance (folding endurance >200,000 cycles).</div></div>","PeriodicalId":20916,"journal":{"name":"Reactive & Functional Polymers","volume":"214 ","pages":"Article 106311"},"PeriodicalIF":4.5,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143903503","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Huanyu Liu , Jiaming Fan , Zengbiao Huang , Chenkai Luo , Yunhui Wu
{"title":"Photopolymerized ionogel as strain-temperature flexible sensor with high linearity, self-healing ability and adhesion","authors":"Huanyu Liu , Jiaming Fan , Zengbiao Huang , Chenkai Luo , Yunhui Wu","doi":"10.1016/j.reactfunctpolym.2025.106310","DOIUrl":"10.1016/j.reactfunctpolym.2025.106310","url":null,"abstract":"<div><div>Ionogels have attracted significant interest as multifunctional flexible sensors owing to their ionic conductivity, flexibility, stability, and inherent conformability. However, the integration of multiple functions into an ionogels remains significantly challenging. Herein, via a one-step photopolymerization of a PIL in an IL solution, we synthesized multifunctional poly(ionic liquid) (PIL)/ionic liquid (IL) ionogels capable of detecting temperature and strain stimuli with minimal interference. The compatibility between PIL and IL imparts self-adhesive properties and rapid self-healing (82.4 % efficiency after 2 h). Furthermore, the PIL/IL sensor exhibited high response linearity for strain (0.987) and temperature (0.993), indicating that the temperature stimulus and the strain stimulus barely have influence on each other. These results demonstrate the potential of wearable electronic devices for human motion detection and temperature sensing.</div></div>","PeriodicalId":20916,"journal":{"name":"Reactive & Functional Polymers","volume":"214 ","pages":"Article 106310"},"PeriodicalIF":4.5,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143903504","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
J. Casado, A. Faja, S. Moradi, X. Ramis, O. Konuray, X. Fernández-Francos
{"title":"Reprocessable epoxy-acrylate 3D-printing resins with improved compatibility","authors":"J. Casado, A. Faja, S. Moradi, X. Ramis, O. Konuray, X. Fernández-Francos","doi":"10.1016/j.reactfunctpolym.2025.106309","DOIUrl":"10.1016/j.reactfunctpolym.2025.106309","url":null,"abstract":"<div><div>In this work, a practical approach is described to prepare acrylate-epoxy photo-thermal (dual) curing DLP 3-D printing resins that are reprocessable through transesterification. By choosing to perform the thermal cure before or after the photocure, the intermediate, partially-cured material can be obtained in different conditions, offering great flexibility for processing. The polyacrylate and polyepoxide phases are compatibilized by methacrylate-functional carboxylic acids that are initially added to the liquid resin. By employing methacrylate precursors with different chain lengths in the preparation of these coupling agents (CA), the final materials are obtained either as elastomeric or glassy solids. The glass transition temperatures <span><math><mfenced><msub><mi>T</mi><mi>g</mi></msub></mfenced></math></span> ranged from 5 °C up to 100 °C and Young's moduli <span><math><mfenced><mi>E</mi></mfenced><mspace></mspace></math></span>ranged from 13 MPa up to 2 GPa. The dynamic behavior was dictated by the choice of the anhydride precursor such that CAs prepared using glutaric anhydride lead to stress relaxation which was an order of magnitude faster than formulations prepared with bulkier anhydrides such as hexahydro-4-methyl phthalic anhydride. The Arrhenius activation energy of relaxation were in the range 90–120 kJ/mol typical of beta-hydroxyester vitrimers. The hot-press reprocessed materials showed near-complete or virtually complete recovery of <span><math><msub><mi>T</mi><mi>g</mi></msub></math></span> and <span><math><mi>E</mi></math></span>. Malleability performance of the materials was either good or excellent.</div></div>","PeriodicalId":20916,"journal":{"name":"Reactive & Functional Polymers","volume":"214 ","pages":"Article 106309"},"PeriodicalIF":4.5,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143899825","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Dingxin Wang , Lin Mei , Qian Liu , Xinhao Zou , Shaoshan Pan , Tianyu Xu , Panfeng Zhao , Tianzhi Luo
{"title":"3D-printable polyacrylamide/quaternary chitosan-based multifunctional hydrogel flexible sensors","authors":"Dingxin Wang , Lin Mei , Qian Liu , Xinhao Zou , Shaoshan Pan , Tianyu Xu , Panfeng Zhao , Tianzhi Luo","doi":"10.1016/j.reactfunctpolym.2025.106308","DOIUrl":"10.1016/j.reactfunctpolym.2025.106308","url":null,"abstract":"<div><div>Hydrogel-based wearable flexible pressure sensors show great potential for applications in human health and motion monitoring. However, fabricating hydrogel sensors with excellent mechanical properties, sensitivity, and stability remains challenging. In this study, we developed a poloxamer-quaternized chitosan-polyacrylamide (P407/QCS-PAAm) hydrogel with multifunctional capabilities. These hydrogels exhibit high strength, impact resistance, excellent electrical conductivity, hydrophilicity, and outstanding antimicrobial properties. Due to the dynamic hydrogen bonding provided by QCS, the mechanical properties of the hydrogel can be adjusted by regulating the QCS content, achieving tensile strengths ranging from 0.14 to 0.47 MPa and compressive strengths from 2.07 to 5.49 MPa. The quaternary ammonium groups carried by QCS enhance the gel's conductivity (0.29 S/m) and its bacteriostatic effects. Furthermore, the incorporation of P407 improves the hydrogel's hydrophilicity. These properties make the gel an excellent biosafety material for wearable devices. Notably, the hydrogel precursor exhibits rate-tunable sol-gel transition properties, enabling 3D printing. The 3D-printed P407/QCS-PAAm hydrogel sensors demonstrate high sensitivity (GF < −0.5) across a wide strain range (−40 % to 0 % strain). Considering these combined properties, the gel demonstrates significant potential for use in flexible wearable and 3D-printed electronic devices.</div></div>","PeriodicalId":20916,"journal":{"name":"Reactive & Functional Polymers","volume":"214 ","pages":"Article 106308"},"PeriodicalIF":4.5,"publicationDate":"2025-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143891248","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Nadia H. Elsayed , Shareefa Ahmed Alshareef , Kholoud M. Alnahdi , Maha Ali Aljowni , Sana A. Khalil , Raedah A.S. Alatawi , Aliyah S. Alhawiti , Abeer Abdulaziz H. Bukhari , Hatem A. Al-Aoh , Mohammed A. Al-Duais , Kamal Shalabi , M. Monier
{"title":"Diels-Alder click chemistry-engineered ion-imprinted polymer for highly selective Gd3+ extraction from aqueous solutions","authors":"Nadia H. Elsayed , Shareefa Ahmed Alshareef , Kholoud M. Alnahdi , Maha Ali Aljowni , Sana A. Khalil , Raedah A.S. Alatawi , Aliyah S. Alhawiti , Abeer Abdulaziz H. Bukhari , Hatem A. Al-Aoh , Mohammed A. Al-Duais , Kamal Shalabi , M. Monier","doi":"10.1016/j.reactfunctpolym.2025.106307","DOIUrl":"10.1016/j.reactfunctpolym.2025.106307","url":null,"abstract":"<div><div>The selective removal and recovery of gadolinium (Gd<sup>3+</sup>) ions from aqueous solutions are vital owing to their growing industrial utilization and environmental risks. In the present work, a polyacrylonitrile (PAN)-derived ion-imprinted polymer (Gd-IIP) was developed by using 2-Hydroxy-5-[(furan-2-ylmethyl)amino]benzohydrazide (FBH) as a chelating function. FBH was immobilized in DVB-crosslinked PAN microspheres by nucleophilic addition followed by subsequent Diels-Alder (DA) cross-linking with bis(maleimido)ethane (BM) for the synthesis of stable and selective Gd<sup>3+</sup> binding sites. Functionalization was confirmed by characterization by FTIR, XPS, SEM, XRD, BET, and solid-state <sup>13</sup>C NMR. Adsorption studies showed that Gd-IIP demonstrated high selectivity and adsorption capacity (448 mg/g) at pH 6.0, which exceeded the non-imprinted polymer (NIP). Selectivity studies against competing ions (Ni<sup>2+</sup>, Cu<sup>2+</sup>, Co<sup>2+</sup>, Y<sup>3+</sup>, Dy<sup>3+</sup>, and Ce<sup>3+</sup>) demonstrated Gd-IIP's superior affinity for Gd<sup>3+</sup>, with selectivity factor <em>(β</em><sub><em>Gd3+/Mn+</em></sub><em>)</em> and relative selectivity <em>(β</em><sub><em>r</em></sub><em>)</em> values exceeding 30, confirming precise ion recognition. Kinetic and isothermal modeling indicated pseudo-second-order adsorption, with the Sips model as the best fit. Regeneration studies showed over 97 % adsorption retention after five cycles, confirming its reusability and efficiency for wastewater treatment.</div></div>","PeriodicalId":20916,"journal":{"name":"Reactive & Functional Polymers","volume":"214 ","pages":"Article 106307"},"PeriodicalIF":4.5,"publicationDate":"2025-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143916905","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}