Reactive & Functional Polymers最新文献_第4页

Polymer-supported MPAA–Pd catalysts for dual CH functionalization: Matching homogeneous efficiency while revealing recyclability limits 聚合物支持的双CH功能化MPAA-Pd催化剂：匹配均相效率，同时揭示可回收性限制

IF 5.1 3区工程技术

Reactive & Functional Polymers Pub Date : 2025-09-10 DOI: 10.1016/j.reactfunctpolym.2025.106478

Jaroslav Pochobradský , Jan Bartáček , Jiří Váňa , Jan Svoboda , Tomáš Hlavatý , Jhonatan Rodriguez-Pereira , Miloš Sedlák

{"title":"Polymer-supported MPAA–Pd catalysts for dual CH functionalization: Matching homogeneous efficiency while revealing recyclability limits","authors":"Jaroslav Pochobradský , Jan Bartáček , Jiří Váňa , Jan Svoboda , Tomáš Hlavatý , Jhonatan Rodriguez-Pereira , Miloš Sedlák","doi":"10.1016/j.reactfunctpolym.2025.106478","DOIUrl":"10.1016/j.reactfunctpolym.2025.106478","url":null,"abstract":"<div><div>MPAA–Pd catalysts are widely used in C<img>H functionalization, but their heterogenization remains underexplored. We developed polymer-supported MPAA–Pd catalysts by copolymerization and post-functionalization of <em>N</em>-acetyltyrosine derivatives. Under optimized conditions, they matched homogeneous performance across 13 substrates (up to 64 % yield) and showed ∼29 % lower residual Pd in the product (2527 ± 425 vs. 3556 ± 479 ppm). However, recyclability was poor: yield dropped from 65 % to 16 % in the second cycle due to Pd leaching. XPS confirmed partial Pd(II) reduction during turnover, while the polymer remained chemically intact. The results reveal that Pd–carboxylate coordination is inherently unstable under basic conditions, limiting the viability of this immobilization strategy. This work illustrates the value of heterogenized systems as mechanistic probes, even when synthetic utility proves limited.</div></div>","PeriodicalId":20916,"journal":{"name":"Reactive & Functional Polymers","volume":"217 ","pages":"Article 106478"},"PeriodicalIF":5.1,"publicationDate":"2025-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145046402","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}

引用次数: 0

Double electrostatic charge dissipate mechanism significant improvement in antistatic performance of polyetherimide film: Synthesis of PEI/ZnO by in situ vapor phase infiltration 双静电电荷耗散机制显著改善聚醚酰亚胺薄膜的抗静电性能：原位气相浸润法合成PEI/ZnO

IF 5.1 3区工程技术

Reactive & Functional Polymers Pub Date : 2025-09-10 DOI: 10.1016/j.reactfunctpolym.2025.106479

Weike Wang , Zhen Jia , Pengchao Su , Xuelian Zhang , Jiankang Zhu , Jing Shi

{"title":"Double electrostatic charge dissipate mechanism significant improvement in antistatic performance of polyetherimide film: Synthesis of PEI/ZnO by in situ vapor phase infiltration","authors":"Weike Wang , Zhen Jia , Pengchao Su , Xuelian Zhang , Jiankang Zhu , Jing Shi","doi":"10.1016/j.reactfunctpolym.2025.106479","DOIUrl":"10.1016/j.reactfunctpolym.2025.106479","url":null,"abstract":"<div><div>Maintaining the matching mode between the dopant molecules and the polymer matrix is the key to achieving efficient and stable antistatic modification of polymers. Practically, the antistatic properties of polymers gradually decrease with the settling and desorption of dopant molecules, thus, the maintenance of a stable bond between the dopant molecules and the polymer matrix is a significant challenge. In this study, for overcoming abovementioned problem, the polyetherimide (PEI) film is in situ modified to obtain the PEI/ZnO hybrid film with great antistatic property via the in situ top-down vapor phase infiltration (VPI) process of diethylzinc (DEZ) and H<sub>2</sub>O molecules. And the reaction between precursor DEZ molecules and functional groups among the polymer backbone can form a distinctive chemical bond between the dopant molecules and the polymer matrix. Based on the unique reaction mechanism involved in VPI process, the properties of the modified polymer were adjusted by regulating the number of infiltration cycle, which thus realized the product suitability and stability. The results show that the conductivity of the PEI/ZnO hybrid material could reach 2.44 × 10<sup>−6</sup> S cm<sup>−1</sup>, indicating that the modified polymer acquired excellent antistatic properties. The VPI process constructs dual conductive pathways inside and on the surface of modified polymers, endowing them with both surface conducting and intrinsic conducting electrostatic charge dissipation modes. Moreover, and the dual discharge mechanism significantly improves the rate of electrostatic charge dissipation in the polymer, thus exhibiting great potential under various environmental conditions.</div></div>","PeriodicalId":20916,"journal":{"name":"Reactive & Functional Polymers","volume":"217 ","pages":"Article 106479"},"PeriodicalIF":5.1,"publicationDate":"2025-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145046404","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}

引用次数: 0

Sustainable watermelon rind-based bioplastic for controlled lidocaine release in topical wound dressings 可持续性西瓜皮生物塑料用于控制局部伤口敷料中的利多卡因释放

IF 5.1 3区工程技术

Reactive & Functional Polymers Pub Date : 2025-09-10 DOI: 10.1016/j.reactfunctpolym.2025.106477

José Alberto Paris Junior , Igor Henrique Cerqueira , Nicole Pichirilli Catirse , Paula de Abreu Fernandes , Saulo Duarte Ozelin , Diógenes dos Santos Dias , Clóvis Augusto Ribeiro , Jhonatan Miguel Silva , Hernane da Silva Barud , Flávia Aparecida Resende

{"title":"Sustainable watermelon rind-based bioplastic for controlled lidocaine release in topical wound dressings","authors":"José Alberto Paris Junior , Igor Henrique Cerqueira , Nicole Pichirilli Catirse , Paula de Abreu Fernandes , Saulo Duarte Ozelin , Diógenes dos Santos Dias , Clóvis Augusto Ribeiro , Jhonatan Miguel Silva , Hernane da Silva Barud , Flávia Aparecida Resende","doi":"10.1016/j.reactfunctpolym.2025.106477","DOIUrl":"10.1016/j.reactfunctpolym.2025.106477","url":null,"abstract":"<div><div>In this study, we developed and characterized biodegradable bioplastics from watermelon (<em>Citrullus lanatus</em>) rind, a commonly discarded agricultural byproduct, incorporating lidocaine hydrochloride (WM-LID) for potential use as functional topical wound dressings. The bioplastics exhibited favorable physicochemical and structural properties, including thermal stability, mechanical strength, and fluid handling capacity, aligning with the requirements for biomedical applications. FTIR and SEM analyses confirmed the interaction between the polymer matrix and the incorporated drug. Lidocaine release was pH-responsive, governed by the solubility of the drug and its interactions within the biopolymeric network. Biological assays revealed low cytotoxicity (2D and 3D cell models) and no genotoxic or mutagenic potential (Comet assay and Ames test), indicating a safe profile for biomedical use. The integration of a natural, renewable matrix with an active pharmaceutical ingredient demonstrates the potential of WM-LID bioplastics as sustainable and functional polymeric systems for controlled drug delivery in wound care applications.</div></div>","PeriodicalId":20916,"journal":{"name":"Reactive & Functional Polymers","volume":"217 ","pages":"Article 106477"},"PeriodicalIF":5.1,"publicationDate":"2025-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145046403","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}

引用次数: 0

A review of hydrophobic modification of chitosan for enhanced transdermal drug delivery and skin repair 壳聚糖疏水改性增强经皮给药和皮肤修复的研究进展

IF 5.1 3区工程技术

Reactive & Functional Polymers Pub Date : 2025-09-04 DOI: 10.1016/j.reactfunctpolym.2025.106468

Chunyan Wei , Xiaodeng Yang , Xianghui Liu , Congde Qiao , Ling Wang , Jing Dong , Yuan Zhai

{"title":"A review of hydrophobic modification of chitosan for enhanced transdermal drug delivery and skin repair","authors":"Chunyan Wei , Xiaodeng Yang , Xianghui Liu , Congde Qiao , Ling Wang , Jing Dong , Yuan Zhai","doi":"10.1016/j.reactfunctpolym.2025.106468","DOIUrl":"10.1016/j.reactfunctpolym.2025.106468","url":null,"abstract":"<div><div>Chitosan (CS), a linear aminopolysaccharide derived from chitin, exhibits poor solubility in neutral, alkaline, and organic media. This review systematically summarizes recent advances in hydrophobic modification strategies (aldehyde grafting, acylation, and etherification) for CS and their applications in transdermal drug delivery and skin repair. Aldehyde grafting and acylation reactions selectively modified the -NH<sub>2</sub> groups of CS under mild conditions. In contrast, etherification was non selective, yielding higher degrees of substitution up to 1.91. Hydrophobically modified chitosan (HM-CS) exhibited enhanced antioxidant properties, antibacterial and antifungal activities, transdermal permeability, and greater emulsion stability compared with unmodified CS. HM-CS self-aggregated into particles with diameters ranging from 80 to 360 nm, which effectively encapsulated and delivered oil-soluble bioactive compounds. Notably, HM-CS-stabilized microemulsions achieved curcumin loading of 3.41 ± 0.13 mg/mL, which was ≈30,000 times its water solubility. Additionally, these microemulsions achieved a cumulative transdermal delivery of 297.30 ± 18.30 μg/cm<sup>2</sup> within 24 h in the studied models. HM-CS-stabilized hydrogels accelerated wound re-epithelialization within 5 days, and achieved complete (100 %) wound contraction by day 10, driven by enhanced angiogenesis and collagen deposition. The modification parameters were correlated with self-aggregation behavior and biological efficacy. These findings provide a framework for optimizing CS-based carriers in biomedical applications. This review highlights the potential of HM-CS in transdermal drug delivery and identifies key challenges, including scalable synthesis and clinical validation, to guide future research.</div></div>","PeriodicalId":20916,"journal":{"name":"Reactive & Functional Polymers","volume":"217 ","pages":"Article 106468"},"PeriodicalIF":5.1,"publicationDate":"2025-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145004958","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}

引用次数: 0

Ferric metal-organic frameworks (MOFs)-based electrospinning fibers for supercapacitors 超级电容器用铁金属有机框架（MOFs）基静电纺丝纤维

IF 5.1 3区工程技术

Reactive & Functional Polymers Pub Date : 2025-09-02 DOI: 10.1016/j.reactfunctpolym.2025.106466

Hani Nasser Abdelhamid , Samar A. Salim

{"title":"Ferric metal-organic frameworks (MOFs)-based electrospinning fibers for supercapacitors","authors":"Hani Nasser Abdelhamid , Samar A. Salim","doi":"10.1016/j.reactfunctpolym.2025.106466","DOIUrl":"10.1016/j.reactfunctpolym.2025.106466","url":null,"abstract":"<div><div>Ferric-based metal-organic frameworks (Fe-MOFs) were synthesized and incorporated into poly(methyl methacrylate) (PMMA) using electrospinning to produce PMMA_Fe-MOF nanofibers. The materials were analyzed using X-ray diffraction (XRD), attenuated total reflectance Fourier-transform infrared spectroscopy (ATR-FTIR), and scanning electron microscopy (SEM). The electrospun materials were directly integrated into nickel foam (NF) electrodes for energy storage applications, e.g., supercapacitors. The electrochemical performance was assessed using cyclic voltammetry (CV), galvanostatic charge-discharge curves (GCDC), linear sweep voltammetry (LSV), and electrochemical potentiokinetic reactivation (EPR). The PMMA_Fe-MOF electrodes exhibited outstanding capacitive performance, achieving specific capacitances of up to 1017.5 F/g at 1 A/g for the 2.5 % Fe-MOF loading. Our findings highlights the promise of electrospun Fe-MOF-based composites as high-performance electrode materials for supercapacitors, featuring a straightforward, binder-free manufacturing procedure. The materials' structural stability and electrochemical characteristics indicate potential use in energy storage applications.</div></div>","PeriodicalId":20916,"journal":{"name":"Reactive & Functional Polymers","volume":"217 ","pages":"Article 106466"},"PeriodicalIF":5.1,"publicationDate":"2025-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145020355","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}

引用次数: 0

Radiosensitizing effects of olaparib nanoparticles modified by Bifidobacterium antibodies on lung cancer 双歧杆菌抗体修饰的奥拉帕尼纳米颗粒对肺癌的放射增敏作用

IF 5.1 3区工程技术

Reactive & Functional Polymers Pub Date : 2025-09-02 DOI: 10.1016/j.reactfunctpolym.2025.106464

Yang Yang , Yingqi Gu , Min Wu , Xiaoyin Zhang , Jinfeng Rong , Zhouxue Wu , Yue Chen , Shaozhi Fu , Jingbo Wu

{"title":"Radiosensitizing effects of olaparib nanoparticles modified by Bifidobacterium antibodies on lung cancer","authors":"Yang Yang , Yingqi Gu , Min Wu , Xiaoyin Zhang , Jinfeng Rong , Zhouxue Wu , Yue Chen , Shaozhi Fu , Jingbo Wu","doi":"10.1016/j.reactfunctpolym.2025.106464","DOIUrl":"10.1016/j.reactfunctpolym.2025.106464","url":null,"abstract":"<div><div>Local hypoxia within solid tumors significantly impedes therapeutic efficacy. Hypoxia-targeted therapies have emerged as powerful strategies to overcome treatment resistance. This study exploits the ability of <em>Bifidobacterium infantis</em> (Bif) to actively colonize hypoxic tumor regions, in conjunction with the radiosensitizing properties of the PARP inhibitor olaparib (Ola). This study developed MPEG-PCL-COS (Methoxy Polyethylene Glycol-Polycaprolactone-Chitosan Oligosaccharide) nanocarriers for the preparation of Ola nanoparticles (Ola-NPs) and Ola-NPs modified with bifidobacterium-specific antibodies (Ab-Ola-NPs). This method facilitates the targeted delivery of nanoparticles to lung cancer cells, resulting in improved therapeutic outcomes when combined with radiotherapy (RT). The experimental results indicate that Ola-NPs exhibit a superior in vivo sensitization enhancement ratio (SER) of 4. The active targeting capability of Ab-Ola-NPs significantly inhibits lung cancer tumor growth and extends the survival time of mice to 42 days. The enhanced therapeutic effect is attributed to the radiosensitizing properties of Ola-NPs in targeting hypoxic tumor regions, with mechanisms involving apoptosis, cell proliferation, and DNA damage.</div></div>","PeriodicalId":20916,"journal":{"name":"Reactive & Functional Polymers","volume":"217 ","pages":"Article 106464"},"PeriodicalIF":5.1,"publicationDate":"2025-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145010872","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}

引用次数: 0

Triazine cored Schiff base multifunctional polybenzoxazine/bio-silica hybrid composites for enhanced flame and corrosion resistance 三嗪芯席夫碱多功能聚苯并恶嗪/生物硅杂化复合材料增强阻燃性和耐腐蚀性

IF 5.1 3区工程技术

Reactive & Functional Polymers Pub Date : 2025-09-01 DOI: 10.1016/j.reactfunctpolym.2025.106465

Anusri G. , Selvi M. , Devaraju S. , Kumaravel A. , Alagar M.

{"title":"Triazine cored Schiff base multifunctional polybenzoxazine/bio-silica hybrid composites for enhanced flame and corrosion resistance","authors":"Anusri G. , Selvi M. , Devaraju S. , Kumaravel A. , Alagar M.","doi":"10.1016/j.reactfunctpolym.2025.106465","DOIUrl":"10.1016/j.reactfunctpolym.2025.106465","url":null,"abstract":"<div><div>In this study, GPTMS-functionalized bio-silica reinforced Schiff base polybenzoxazine hybrid composites, based on a triazine-cored benzoxazine structure, were developed for high-performance thermal, flame retardant, and corrosion-resistant applications. Benzoxazine monomers were synthesized via Mannich condensation using triazine-based trisphenol (CN-IM) and four amines: aniline (a), furfuryl amine (fa), lauryl amine (la), and stearylamine (sa), with structural confirmation by FT-IR and NMR analyses. Among these, CN-IM-sa was selectively used for hybrid composite development due to its comparatively lower thermal stability, along with its inherent good corrosion resistance and superior hydrophobicity, aiming to enhance its protective performance through bio-silica reinforcement. Catalyst-assisted curing of CN-IM-sa reduced the curing temperature to 188 °C. The poly(CN-IM-sa)/bio-silica hybrid composite exhibited significant improvements, including a water contact angle of 130°, corrosion inhibition efficiency of 99.3 %, and improved thermal stability confirmed by high residual char. These results highlight the potential of CN-IM-sa/bio-silica hybrids as multifunctional coatings for corrosion protection in aggressive environments.</div></div>","PeriodicalId":20916,"journal":{"name":"Reactive & Functional Polymers","volume":"217 ","pages":"Article 106465"},"PeriodicalIF":5.1,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145004957","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}

引用次数: 0

Spectroscopic and morphological properties of white light emitted electrospun PVA@ZnO:xDy3+ nanofibers 静电纺PVA@ZnO:xDy3+纳米纤维白光发射的光谱和形态特性

IF 5.1 3区工程技术

Reactive & Functional Polymers Pub Date : 2025-08-30 DOI: 10.1016/j.reactfunctpolym.2025.106463

Yasemin Acar , Mustafa Burak Coban , Elif Gungor , Mehmet Dogan , Yasemin Turhan

{"title":"Spectroscopic and morphological properties of white light emitted electrospun PVA@ZnO:xDy3+ nanofibers","authors":"Yasemin Acar , Mustafa Burak Coban , Elif Gungor , Mehmet Dogan , Yasemin Turhan","doi":"10.1016/j.reactfunctpolym.2025.106463","DOIUrl":"10.1016/j.reactfunctpolym.2025.106463","url":null,"abstract":"<div><div>In this study, ZnO:Dy nanoparticles were obtained using the precipitation technique by adding Dy<sup>3+</sup> at 1, 2, 3, 5, and 7 % by weight and structurally analyzed by the powder XRD technique. The resulting ZnO:Dy<sup>3+</sup> nanoparticles were incorporated into a PVA polymer matrix to produce PVA@ZnO:<em>x</em>Dy<sup>3+</sup> (x = 0, 1, 2, 3, 5, and 7 wt%) nanofibers by using the electrospinning technique. The PVA@ZnO:xDy<sup>3+</sup> nanofibers were characterized using various techniques, including Fourier Transform Infrared (FTIR) spectroscopy, solid-state UV absorption spectroscopy, field emission scanning electron microscopy (FESEM), thermogravimetric analysis (TGA), and photoluminescence (PL) spectroscopy to reveal the structural, morphological, thermal, and optical properties. PL studies performed to understand the effect of Dy<sup>3+</sup> ion doping on the luminescent behavior show that while the pure nanofibers emit greenish-blue light, the Dy<sup>3+</sup>-doped PVA@ZnO:xDy nanofibers emit light close to white. Dy<sup>3+</sup> ions, known for their characteristic blue and yellow emissions, can produce white light when the intensity ratio of these emissions is optimized, and in this study, the CIE coordinates for the 2 wt% Dy<sup>3+</sup> doping concentration at which the PL intensity maximum is reached are 0.3004;0.3302, which is very close to the ideal value of white light (0.333;0.333). Due to this feature, the obtained fibers may be an attractive candidate for the design and production of white light-emitting devices.</div></div>","PeriodicalId":20916,"journal":{"name":"Reactive & Functional Polymers","volume":"217 ","pages":"Article 106463"},"PeriodicalIF":5.1,"publicationDate":"2025-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144933861","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}

引用次数: 0

Carbon nanotube-enhanced photothermal conversion thermosensitive hydrogel for solar water evaporation: Preparation and performance 用于太阳能水蒸发的碳纳米管增强光热转换热敏水凝胶：制备与性能

IF 5.1 3区工程技术

Reactive & Functional Polymers Pub Date : 2025-08-29 DOI: 10.1016/j.reactfunctpolym.2025.106462

Dongrui Ji , Baolian Zhang , Fuzhuang Jia , Aiying Wei , Yingmin Yuan , Hongbin Zhao

{"title":"Carbon nanotube-enhanced photothermal conversion thermosensitive hydrogel for solar water evaporation: Preparation and performance","authors":"Dongrui Ji , Baolian Zhang , Fuzhuang Jia , Aiying Wei , Yingmin Yuan , Hongbin Zhao","doi":"10.1016/j.reactfunctpolym.2025.106462","DOIUrl":"10.1016/j.reactfunctpolym.2025.106462","url":null,"abstract":"<div><div>Harnessing solar photothermal conversion for water evaporation presents an effective approach to addressing freshwater scarcity while minimizing environmental impact. This study employed carbon nanotubes as photothermal conversion materials to design and fabricate a composite thermosensitive hydrogel exhibiting high swelling capacity, excellent salt resistance, and efficient photothermal conversion for solar-driven water evaporation. Furthermore, the effects of carboxylated carbon nanotubes (CNT-COOH) and hydroxylated carbon nanotubes (CNT-OH) on the hydrogel's properties were systematically investigated. Results demonstrate that the composite hydrogel utilizing CNT-COOH as the photothermal conversion material delivered optimal overall performance, exhibiting superior mechanical properties and optimal photothermal conversion capability. It achieved swelling ratios of 385.2 g/g in pure water and 58.3 g/g in saline water, rapidly attaining swelling equilibrium within approximately 200 min. Combined with its thermosensitive property, the material reduces the enthalpy of water evaporation from 2441.5 J/g to 1687.3 J/g. Under 1 kW/m<sup>2</sup> solar irradiation, the hydrogel achieved evaporation rates of 2.35 kg m<sup>−2</sup> h<sup>−1</sup> in pure water and 1.71 kg m<sup>−2</sup> h<sup>−1</sup> in saline water, both exceeding the theoretical limit of solar water evaporation (1.46 kg m<sup>−2</sup> h<sup>−1</sup>), demonstrating its exceptional evaporation performance. Additionally, the material demonstrated outstanding stability, self-cleaning properties, and salt tolerance during cyclic evaporation testing. This work provides a robust theoretical foundation and technical basis for developing hydrogel evaporators with high salt resistance, high swellability, and long-term durability.</div></div>","PeriodicalId":20916,"journal":{"name":"Reactive & Functional Polymers","volume":"217 ","pages":"Article 106462"},"PeriodicalIF":5.1,"publicationDate":"2025-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144933860","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}

引用次数: 0

Biomimetic leaf wax layer self-healing superhydrophobic MOF sponge with dual applications: High-capacity oil adsorption and efficient cationic dye elimination 仿生叶蜡层自愈超疏水MOF海绵，具有双重用途：高容量吸油和高效阳离子染料去除

IF 5.1 3区工程技术

Reactive & Functional Polymers Pub Date : 2025-08-28 DOI: 10.1016/j.reactfunctpolym.2025.106461

Yukai Huang, Tong Zou, Wenyu Wang, Ruoyu Chen, Qian Jia

{"title":"Biomimetic leaf wax layer self-healing superhydrophobic MOF sponge with dual applications: High-capacity oil adsorption and efficient cationic dye elimination","authors":"Yukai Huang, Tong Zou, Wenyu Wang, Ruoyu Chen, Qian Jia","doi":"10.1016/j.reactfunctpolym.2025.106461","DOIUrl":"10.1016/j.reactfunctpolym.2025.106461","url":null,"abstract":"<div><div>In this work, a multifunctional biomimetic self-healing superhydrophobic MOF sponge (HDTMS@UiO-66-NH<sub>2</sub>@PDA@MS) was prepared for efficient oil-water separation and cationic dye wastewater removal. A PDA layer was formed on the surface of the sponge by DA oxidation and self-polymerization, and UiO-66-NH<sub>2</sub> was loaded onto the melamine sponge. To further enhance the hydrophobic properties of the MOF sponge, cetyltrimethoxysilane (HDTMS) is hydrolyzed and condensed to form a non-toxic layer of low surface energy polysiloxane adhesive on the surface of the sponge. The prepared modified sponge exhibited excellent superhydrophobicity (water contact angle of 156.2°), high oil adsorption capacity (73.2–164.7 g/g), and cationic dye removal rate (more than 95 %). Inspired by the self-heal mechanism of the wax layer on plant leaves, the modified sponge and can achieve rapid self-heal at 250 °C after simulated oxidative damage. In addition, the synergistic effects of excellent oil-water separation efficiency, reusability, environmental stability, self-cleaning capabilities make HDTMS@UiO-66-NH<sub>2</sub>@PDA@MS a promising candidate for marine oil spill remediation and oily wastewater treatment.</div></div>","PeriodicalId":20916,"journal":{"name":"Reactive & Functional Polymers","volume":"217 ","pages":"Article 106461"},"PeriodicalIF":5.1,"publicationDate":"2025-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144926757","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}

引用次数: 0