European Polymer Journal最新文献_第5页

Rehydration of ready-to-use gel powder to construct self-healing and injectable hydrogel for protein delivery 即用凝胶粉的再水化，以构建自愈合和可注射的水凝胶，用于蛋白质输送

IF 5.8 2区化学

European Polymer Journal Pub Date : 2025-04-30 DOI: 10.1016/j.eurpolymj.2025.113987

Yi Fang Xi , Yong Mei Chen , Yasir Aziz , Meng Liang Bi , He Ming Song , Jian Hui Li , Hao Peng Li , Hong Xu Jin , Hideyuki Miyatake , Yoshihiro Ito , Miklós Zrínyi

{"title":"Rehydration of ready-to-use gel powder to construct self-healing and injectable hydrogel for protein delivery","authors":"Yi Fang Xi , Yong Mei Chen , Yasir Aziz , Meng Liang Bi , He Ming Song , Jian Hui Li , Hao Peng Li , Hong Xu Jin , Hideyuki Miyatake , Yoshihiro Ito , Miklós Zrínyi","doi":"10.1016/j.eurpolymj.2025.113987","DOIUrl":"10.1016/j.eurpolymj.2025.113987","url":null,"abstract":"<div><div>Storage and transportation of dynamic hydrogel in ambient conditions is challenging. At present, cold-chain management is the most suitable option but it requires substantial infrastructure and energy. Moreover, the raw materials for preparing dynamic hydrogels often require chemical modification and purification, making the process cumbersome and time-consuming. This poses challenges for the practical applications of dynamic hydrogels. Here, we have developed a dynamic micron-sized (DMS) gel powder that can be packed, stored, and transported in a freeze-dried powdered form and can be rehydrated into a dynamic hydrogel. The dynamic hydrogel obtained by rehydrating the DMS gel powder stored under ambient conditions for 7 months can achieve properties similar to the original hydrogel, including stable protein delivery, mechanical properties, injectability, self-healing and remodeling. We propose a novel strategy for preparing a long-term storable DMS gel powder that can maintain properties similar to those of the original hydrogel. Considering the advantages in terms of convenience and commercialization for practical applications in the biomedical fields, this unique ready-to-use DMS gel powder offers a practical, scalable, and simple solution to enable mass production, cold-chain free, and low cost off-the-shelf dynamic hydrogel.</div></div>","PeriodicalId":315,"journal":{"name":"European Polymer Journal","volume":"233 ","pages":"Article 113987"},"PeriodicalIF":5.8,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143924793","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Dynamically self-degradable, injectable and self-healing 6-deoxy-6-arginine grafted chitosan hydrogels for wounds healing 动态自降解、可注射、自修复的6-脱氧-6-精氨酸接枝壳聚糖水凝胶用于伤口愈合

IF 5.8 2区化学

European Polymer Journal Pub Date : 2025-04-29 DOI: 10.1016/j.eurpolymj.2025.113986

Ze Xu , Dan Shou , Wenrong Cai , Junyao Li , Datong Wu , Tao Jiang , Yong Kong

{"title":"Dynamically self-degradable, injectable and self-healing 6-deoxy-6-arginine grafted chitosan hydrogels for wounds healing","authors":"Ze Xu , Dan Shou , Wenrong Cai , Junyao Li , Datong Wu , Tao Jiang , Yong Kong","doi":"10.1016/j.eurpolymj.2025.113986","DOIUrl":"10.1016/j.eurpolymj.2025.113986","url":null,"abstract":"<div><div>6-Deoxy-6-arginine grafted chitosan (DAC) is cross-linked with dibenzaldehyde-functionalized polyethylene glycol (DF-PEG) via the acylhydrazone (–N=CH–) bonds, which can be utilized for the encapsulation of metformin (MET). The resultant injectable DAC/DF-PEG/MET (DDM) hydrogels highlight well-behaved antibacterial and anti-inflammatory activity as well as self-healing capability. More interestingly, the DDM hydrogels exhibit appealing dynamic self-degradability. The electrostatic attraction between DAC and DF-PEG is significantly weakened at slightly alkaline surface (pH 7.0–8.0) that is the characteristic of skin wounds, resulting in the swelling of the hydrogels and the release of MET. As the wounds gradually get healed, the skin tissue turns to be weakly acidic (pH 4.0–6.0), leading to the hydrolysis of the –N=CH– bonds between DAC and DF-PEG. Therefore, the DDM hydrogels can be dynamically self-degraded during the wound healing process. Owing to the injectability and self-healing properties, the DDM hydrogels are suitable for use as the wound dressing for the wounds in any shape. The developed DDM hydrogels also display excellent hemocompatibility and cytocompatibility, indicating that they might be a potential wound dressing for skin wounds.</div></div>","PeriodicalId":315,"journal":{"name":"European Polymer Journal","volume":"233 ","pages":"Article 113986"},"PeriodicalIF":5.8,"publicationDate":"2025-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143894629","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Oral insulin delivery by spatiotemporal polymeric Micelles: Existing Barriers, Status Quo and opportunities 时空聚合胶束口服胰岛素递送：现有障碍、现状和机遇

IF 5.8 2区化学

European Polymer Journal Pub Date : 2025-04-29 DOI: 10.1016/j.eurpolymj.2025.113981

Tenzin Wangmo , Kartik Garg , Aisha Auwal Ibrahim , Saurabh Srivastava , Paras Famta , Sachin Kumar Singh , Monica Gulati , Kamal Dua , Jaskiran Kaur

{"title":"Oral insulin delivery by spatiotemporal polymeric Micelles: Existing Barriers, Status Quo and opportunities","authors":"Tenzin Wangmo , Kartik Garg , Aisha Auwal Ibrahim , Saurabh Srivastava , Paras Famta , Sachin Kumar Singh , Monica Gulati , Kamal Dua , Jaskiran Kaur","doi":"10.1016/j.eurpolymj.2025.113981","DOIUrl":"10.1016/j.eurpolymj.2025.113981","url":null,"abstract":"<div><div>Since the discovery of insulin, its parenteral use has been discouraged by the inadequacy of the treatment protocol such as action on non-target sites and liver-compromised effects. Eventually, this results in peripheral insulin resistance and immunogenicity. In contrast, oral insulin delivery has become a popular and well-accepted approach that enables hepatic insulin action via portal circulation to regulate glucose output. Indeed, such action is crucial for preserving glucose homeostasis. However, the primary challenge is associated with the gastrointestinal barrier. Polymeric micelles (PMs) formed from amphiphilic block copolymers (ABCs) specially designed for oral insulin using stimuli-responsive moieties, polysaccharide-based blocks, charge reversible blocks, etc. in the form of zwitterionic PMs, complex PMs, and dual/multi-responsive PMs can overcome the limitations. Their self-assembly at lower critical micelle concentration (0.1–1 µM) offers higher thermodynamic stability. Eventually, this makes them unique over other nanoparticles. Thus, PMs harness the potential to improve the efficacy of insulin by providing ease of administration, controlled systemic exposure, prolonged residence time, and broad flexibility and tunability. However, toxicity and inadequate release are claimed to be major concerns for PMs. In this work, we have scrutinised the critical molecular features of ABCs influencing the physicochemical characteristics of PMs for spatiotemporal insulin release. Herein, we discuss key issues that restrict their translation to the clinical practice followed by opportunities that can be used to overcome the same for the success of oral insulin PMs.</div></div>","PeriodicalId":315,"journal":{"name":"European Polymer Journal","volume":"233 ","pages":"Article 113981"},"PeriodicalIF":5.8,"publicationDate":"2025-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143918480","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Flame retardant and antibacterial windmill palm fibers treated by 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide and N-halamine 9,10-二氢-9-氧杂-10-磷菲-10-氧化物和N-halamine处理的阻燃和抗菌风车棕榈纤维

IF 5.8 2区化学

European Polymer Journal Pub Date : 2025-04-28 DOI: 10.1016/j.eurpolymj.2025.113979

Lifan Li , Yanhao Chen , Jiapeng Ye , Deming Zhou , Lingxiao Jing , Zaixing Zhang , Kun Luan , Junjuan Huang , Xin Tang , Tonghua Zhang

{"title":"Flame retardant and antibacterial windmill palm fibers treated by 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide and N-halamine","authors":"Lifan Li , Yanhao Chen , Jiapeng Ye , Deming Zhou , Lingxiao Jing , Zaixing Zhang , Kun Luan , Junjuan Huang , Xin Tang , Tonghua Zhang","doi":"10.1016/j.eurpolymj.2025.113979","DOIUrl":"10.1016/j.eurpolymj.2025.113979","url":null,"abstract":"<div><div>With growing environmental awareness and a focus on sustainable development, the recycling and utilization of natural fibers and renewable resources have become critical issues in recent years. Windmill palm fibers (WPFs) are composed of cellulose microfibrils within a matrix of hemicellulose and lignin, which can harbor bacteria and pose a health risk to the wearer in humid environments. They are also highly flammable resulting in safety hazards during industrial production and use. In this study, we used a click chemistry strategy to conduct a surface modification on WPFs. The treated fibers are fire redundant and antibacterial. The treatment includes two steps: first step is delignification and hemicellulose removal followed by silanes treatment; second step is the click chemical reaction with 6-(((1H-1,2,4-triazol-3-yl)amino)(4-(allyloxy)phenyl)methyl)dibenzo[c,e][<span><span>1</span></span>,<span><span>2</span></span>]oxaphosphinine 6-oxide (TAPM-DOPO). The burn tests have proved that TAPM-DOPO plays an important role in condensed phase in flame retardancy of WPFs. The sustained burn time was reduced by 71 s. Furthermore, it exhibited excellent bactericidal activity against both <em>E. coli</em> and <em>S. aureus</em>, the inhibition rate reached 99.9% after chlorination. The technology in this study demonstrates a feasible production of the flame retardant and antibacterial WPFs suitable to large-volume manufacturing of textile product.</div></div>","PeriodicalId":315,"journal":{"name":"European Polymer Journal","volume":"233 ","pages":"Article 113979"},"PeriodicalIF":5.8,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143902476","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

From red to green: Smart thiol-porphyrin cryogels combining high mercury efficiency removal and visual material saturation alert 从红色到绿色：智能硫醇卟啉低温结合高汞效率去除和视觉材料饱和警报

IF 5.8 2区化学

European Polymer Journal Pub Date : 2025-04-27 DOI: 10.1016/j.eurpolymj.2025.113982

Giuseppe Proietto Salanitri , Tommaso Mecca , Sabrina C. Carroccio , Daniele Caretti , Francesca Cunsolo , Giuliana Impellizzeri , Sandro Dattilo

{"title":"From red to green: Smart thiol-porphyrin cryogels combining high mercury efficiency removal and visual material saturation alert","authors":"Giuseppe Proietto Salanitri , Tommaso Mecca , Sabrina C. Carroccio , Daniele Caretti , Francesca Cunsolo , Giuliana Impellizzeri , Sandro Dattilo","doi":"10.1016/j.eurpolymj.2025.113982","DOIUrl":"10.1016/j.eurpolymj.2025.113982","url":null,"abstract":"<div><div>A novel and smart methacrylic acid (MAA) based macroporous material functionalized with thiol groups (−SH) was developed to achieve highly efficient and selective removal of toxic Hg(II) ions from water. With the aim of visualizing the saturation of the active sites of the material in real-time, a porphyrin-based co-monomer was synthesized and included (only 0.25 % w/w) as a part of the co-polymeric structure. The porphyrin ring can capture Hg(II) ions, causing a color change from red to green. However, due to the higher affinity of Hg(II) towards thiol groups, the porphyrin will be able to interact with free Hg(II) only when the adjacent thiols are no longer available and, therefore, close to the complete saturation of −SH sites. The color shift alerts that the material is approaching saturation, hence, a regeneration step is necessary for subsequent adsorption cycles. The typical interconnected macroporous (3–23 µm) network of the cryogel allows fast water diffusion and easy access to the −SH and PORPH sites. Such design achieves an exceptional Hg(II) adsorption capacity (Q<sub>max</sub> > 1200 mg/g), calculated from the Langmuir isotherm model. The synthesized material shows high selectivity towards Hg(II) (S% > 95 %) in a solution with the simultaneous presence of other metal cation species. The kinetics of Hg(II) capture, pH behavior, material dosage, and regeneration cycles were tested, highlighting its potential applicability across a broad pH range and its reusability for at least five cycles. These combined features underscore the superior performance of this advanced material compared to current state-of-the-art competitors.</div></div>","PeriodicalId":315,"journal":{"name":"European Polymer Journal","volume":"233 ","pages":"Article 113982"},"PeriodicalIF":5.8,"publicationDate":"2025-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143891550","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Green and sustainable fabrication of strong PPBESK aerogel fibers by tuning the spinning parameters 通过调整纺丝参数，绿色可持续地制备强PPBESK气凝胶纤维

IF 5.8 2区化学

European Polymer Journal Pub Date : 2025-04-27 DOI: 10.1016/j.eurpolymj.2025.113978

Chen Zhuo , Fangxin Zou , Qian Liu , Bowen Fang , Shugang Xu , Shouhai Zhang , Hailong Li , Xigao Jian

{"title":"Green and sustainable fabrication of strong PPBESK aerogel fibers by tuning the spinning parameters","authors":"Chen Zhuo , Fangxin Zou , Qian Liu , Bowen Fang , Shugang Xu , Shouhai Zhang , Hailong Li , Xigao Jian","doi":"10.1016/j.eurpolymj.2025.113978","DOIUrl":"10.1016/j.eurpolymj.2025.113978","url":null,"abstract":"<div><div>Aerogel fibers exhibit great potential in smart wearable fabrics due to the unique combination of high porosity, low thermal conductivity, and easy to fabricate to textiles. However, the fabrication of typical aerogel fibers is involved with some organic solvents, special facilities, and complicate procedures. And, the prepared aerogel fibers show low mechanical property, which makes it challenging to satisfy the requirements of practical applications. Here, poly(phthalazinone ether sulfone ketone) containing biphenyl moieties (PPBESK) aerogel fiber with high thermal stability is fabricated by a green and sustainable method which combines the wet spinning and the ambient pressure drying techniques, and utilizes water as the coagulation bath and for the washing step. All PPBESK aerogel fibers exhibit a three-layer structure with hierarchical porous, which endow them not only a good thermal insulation performance (the temperature difference/thickness (ΔT/d) value reaches up to 63 °C/mm), but also a good mechanical property (the fractural stress reaches up to 12 MPa that is much higher than other aerogel fibers). Overall, this work presents a preparation strategy for aerogel fibers, which will facilitate the advancement of thermal management fabrics in harsh environmental applications and may inspire structural construction in other polymers.</div></div>","PeriodicalId":315,"journal":{"name":"European Polymer Journal","volume":"233 ","pages":"Article 113978"},"PeriodicalIF":5.8,"publicationDate":"2025-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143898599","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The degradation rate of electrospun diverse biodegradable polymer membranes changes with surface modification through varying the treatment time using atmospheric-pressure non-thermal plasma 通过常压非热等离子体处理时间的变化，电纺多种生物可降解聚合物膜的降解速率随表面改性的变化而变化

IF 5.8 2区化学

European Polymer Journal Pub Date : 2025-04-27 DOI: 10.1016/j.eurpolymj.2025.113966

Sang-Hyun Cho , Jae-Sung Kwon

{"title":"The degradation rate of electrospun diverse biodegradable polymer membranes changes with surface modification through varying the treatment time using atmospheric-pressure non-thermal plasma","authors":"Sang-Hyun Cho , Jae-Sung Kwon","doi":"10.1016/j.eurpolymj.2025.113966","DOIUrl":"10.1016/j.eurpolymj.2025.113966","url":null,"abstract":"<div><div>Electrospun biodegradable polymer membranes fabricated using polycaprolactone (PCL), polylactic acid (PLA), and poly(lactic-co-glycolic acid) (PLGA) for guided bone regeneration (GBR) must degrade within an appropriate time frame for clinical use. However, their slow degradation limits practical application. To address this, atmospheric-pressure non-thermal argon plasma was applied as a surface modification strategy to regulate degradation behavior. Membranes were treated for 0, 1, 3, 5, and 7 min, and changes were evaluated via attenuated total reflectance fourier-transform infrared spectroscopy (ATR-FTIR), X-ray photoelectron spectroscopy (XPS), atomic force microscopy (AFM), wettability, field-emission scanning electron microscopy (FE-SEM), degradation rate and size exclusion chromatography (SEC). ATR-FTIR and XPS showed increased oxygen-containing groups. The O/C ratio increased from 0.25 ± 0.05 to 0.39 ± 0.06 for PCL, 0.55 ± 0.02 to 0.63 ± 0.03 for PLA, and 0.63 ± 0.02 to 0.70 ± 0.04 for PLGA (<em>p</em> < 0.05). Surface roughness of only PCL increased from 0.90 ± 0.14 µm to 1.25 ± 0.27 µm (<em>p</em> < 0.05). Water contact angles decreased (<em>p</em> < 0.05), indicating improved hydrophilicity. After 12 weeks in phosphate buffered saline (PBS) at 37 ℃, degradation rates increased with plasma treatment time. FE-SEM revealed the fracture patterns in the fibers with plasma treatment time. SEC confirmed decreases in weight average molecular weight (<em>M<sub>w</sub></em>), number average molecular weight (<em>M<sub>n</sub></em>), and dispersity. These results demonstrate that plasma treatment enables time-dependent control of degradation rate in electrospun biodegradable polymer membranes, supporting its feasibility for GBR applications.</div></div>","PeriodicalId":315,"journal":{"name":"European Polymer Journal","volume":"232 ","pages":"Article 113966"},"PeriodicalIF":5.8,"publicationDate":"2025-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143887030","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Corrigendum to “Preparation and composition analysis of PVA/chitosan/PDA hybrid bioactive multifunctional hydrogel for wound dressing” [Eur. Polymer J. 221 (2024) 113527] “伤口敷料用聚乙烯醇/壳聚糖/PDA混合生物活性多功能水凝胶的制备和成分分析”的更正[欧洲]。高分子学报。221 (2024)113527 [j]

IF 5.8 2区化学

European Polymer Journal Pub Date : 2025-04-27 DOI: 10.1016/j.eurpolymj.2025.113962

Tengda Ma , Lizhao Yan , Bingxu Wang , Qirui Gong , Guangxu Wang , Tiantian Chen , Shuang Liu , Haojie Wei , Guanghua He , Yue Zhang , Lihong Fan , Yingying Chu

引用次数: 0

Generation-dependent aggregation-induced emission from unconventional chromophore aggregation in phosphonate-functionalized Si-containing dendritic polymers 磷酸盐官能化含硅枝晶聚合物中非常规发色团聚集的代依赖聚集诱导发射

IF 5.8 2区化学

European Polymer Journal Pub Date : 2025-04-27 DOI: 10.1016/j.eurpolymj.2025.113952

Zhihui Yang , Fanghao Sun , Weizhi Tian , Haobo Shi , Haifeng Lu

{"title":"Generation-dependent aggregation-induced emission from unconventional chromophore aggregation in phosphonate-functionalized Si-containing dendritic polymers","authors":"Zhihui Yang , Fanghao Sun , Weizhi Tian , Haobo Shi , Haifeng Lu","doi":"10.1016/j.eurpolymj.2025.113952","DOIUrl":"10.1016/j.eurpolymj.2025.113952","url":null,"abstract":"<div><div>Unconventional luminescent macromolecules have attracted significant interest for their superior biocompatibility, processability, and biodegradability. However, achieving multicolor emission through structural modulation remains a substantial challenge. In this study, a series of novel phosphonate-functionalized, silicon-containing dendritic macromolecules were synthesized by incorporating phosphonate groups into the molecular structure without modifying the silicon-based dendritic framework. The fluorescence intensity of these macromolecules increased markedly with higher polymer generations, revealing a unique generation-dependent aggregation-induced emission (AIE) phenomenon. The AIE properties were further validated by examining the effects of concentration and poor solvents on fluorescence behavior. Experimental results demonstrate that phosphonate functionalization enhances the rigidity of the molecular backbone and stabilizes fluorescent clusters, amplifying non-conjugated linkages and through-space conjugation (TSC) effects. Additionally, cytotoxicity assays confirmed the excellent biocompatibility of these materials. This study establishes phosphonate end-grafting as an effective strategy to optimize structural flexibility and achieve generation-dependent emission in non-conjugated polymers, paving the way for applications in bioimaging and fluorescent labeling while offering new insights into the design of advanced luminescent materials.</div></div>","PeriodicalId":315,"journal":{"name":"European Polymer Journal","volume":"233 ","pages":"Article 113952"},"PeriodicalIF":5.8,"publicationDate":"2025-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143902503","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Dimensional and Isomeric Effects of Pyrene-Based Covalent Organic Frameworks on PET-RAFT Polymerization 芘基共价有机骨架对PET-RAFT聚合的尺寸和异构影响

IF 5.8 2区化学

European Polymer Journal Pub Date : 2025-04-26 DOI: 10.1016/j.eurpolymj.2025.113963

Kai Tian , Yiru Zheng , Zhen Lu , Rui Zhao , Xin Ge , Linxi Hou

{"title":"Dimensional and Isomeric Effects of Pyrene-Based Covalent Organic Frameworks on PET-RAFT Polymerization","authors":"Kai Tian , Yiru Zheng , Zhen Lu , Rui Zhao , Xin Ge , Linxi Hou","doi":"10.1016/j.eurpolymj.2025.113963","DOIUrl":"10.1016/j.eurpolymj.2025.113963","url":null,"abstract":"<div><div>Covalent organic frameworks (COFs) are crystalline, porous semiconductors that have attracted significant interest in photocatalysis. The double chain edge structure of one-dimensional (1D) COFs enhances stability and minimizes energy loss, while varying linkage orientations create diverse optical band gaps and charge transfer properties. However, dimensional and isomeric COFs are rarely explored in photoinduced electron transfer-reversible addition-fragmentation chain transfer (PET-RAFT) polymerization, leaving their structure-activity relationships unclear. Herein, we synthesized 1D TA-COF, 1D TF-COF, 2D TA-COF, and 2D TF-COF to evaluate their behavior in oxygen-tolerant PET-RAFT polymerization. Notably, 1D TA-COF demonstrated optimal photocatalytic performance (79.4%, 16 h) owing to efficient charge separation, while isomeric 1D TF-COF exhibited lower productivity (41.5%) due to hindered electron transfer. Additionally, 2D TF-COF outperformed 2D TA-COF (51.0% vs. 36.7%, 16 h), highlighting the considerable impacts of dimension and isomerism on performance, with dimension playing a more dominant role due to the electron delocalization characteristics determined by topological structure.</div></div>","PeriodicalId":315,"journal":{"name":"European Polymer Journal","volume":"232 ","pages":"Article 113963"},"PeriodicalIF":5.8,"publicationDate":"2025-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143887029","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0