Reactive & Functional Polymers最新文献_第6页

Block copolymer brushes modified cotton fabric for antifouling oil-water separation materials with thermal responsiveness 用于防污油水分离材料的具有热响应性的嵌段共聚物刷改性棉织物

IF 4.5 3区工程技术

Reactive & Functional Polymers Pub Date : 2024-07-31 DOI: 10.1016/j.reactfunctpolym.2024.106017

引用次数: 0

A simple approach for fabrication of a promising hyperbranched polyurethane-urea - sulfur (HBPU-Urea-Sulfur) hybrid coating material through the utilization of elemental sulfur 利用元素硫制造前景广阔的超支化聚氨酯-尿素-硫（HBPU-尿素-硫）混合涂层材料的简单方法

IF 4.5 3区工程技术

Reactive & Functional Polymers Pub Date : 2024-07-31 DOI: 10.1016/j.reactfunctpolym.2024.106018

{"title":"A simple approach for fabrication of a promising hyperbranched polyurethane-urea - sulfur (HBPU-Urea-Sulfur) hybrid coating material through the utilization of elemental sulfur","authors":"","doi":"10.1016/j.reactfunctpolym.2024.106018","DOIUrl":"10.1016/j.reactfunctpolym.2024.106018","url":null,"abstract":"<div><p>Hybrid coating based on hyper-branched polyurethane and elemental sulfur was synthesized by in-situ polycondensation and urethane reaction. The effect of Sulfur in the hydrogen bonding, thermo-mechanical properties and surface morphology of HBPU-Urea-Sulfur hybrid coating at 2 wt% concentration was notable objective of this work. Deconvolution studies confirmed that more hydrogen bonding interaction happened in HBPU-Urea coating. HBPU-Urea coating indicated better young's modulus and tensile strength compared to HBPU-Urea-Sulfur hybrid coating. Interestingly, the elongation percentage increased from 12% for HBPU-Urea to 18% for HBPU-Urea-Sulfur hybrid coating. Thermal stability of the coatings was examined by thermogravimetric analysis (TGA) depicted a 10 °C decrease in thermal stability for 2 wt% sulfur filled hybrid coating. Dynamic mechanical thermal analyzer (DMTA) analysis showed lower glass transition temperature and crosslinking density after addition of sulfur nanoparticles. The HBPU-Urea-Sulfur hybrid coating displays a smooth surface because the size of the sulfur nanoparticles is reduced, leading to uniform dispersion and achieve good compatibility. The HBPU-Urea-Sulfur hybrid coating possess superior antibacterial properties against <em>Escherichia coli (E. coli)</em> and <em>Staphylococcus aureus</em> (<em>S. aureus)</em>. The antibacterial activity of coating is dependent on the presence of sulfur in the coating.</p></div>","PeriodicalId":20916,"journal":{"name":"Reactive & Functional Polymers","volume":null,"pages":null},"PeriodicalIF":4.5,"publicationDate":"2024-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141962207","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}

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Easy and fast preparation of superhydrophobic multi-level structures with high stability and oil-water separation efficiency 轻松快速制备具有高稳定性和油水分离效率的超疏水多层次结构

IF 4.5 3区工程技术

Reactive & Functional Polymers Pub Date : 2024-07-31 DOI: 10.1016/j.reactfunctpolym.2024.106019

引用次数: 0

Developing double-crosslinking 3D printed hydrogels for bone tissue engineering 开发用于骨组织工程的双交联三维打印水凝胶

IF 4.5 3区工程技术

Reactive & Functional Polymers Pub Date : 2024-07-30 DOI: 10.1016/j.reactfunctpolym.2024.106016

{"title":"Developing double-crosslinking 3D printed hydrogels for bone tissue engineering","authors":"","doi":"10.1016/j.reactfunctpolym.2024.106016","DOIUrl":"10.1016/j.reactfunctpolym.2024.106016","url":null,"abstract":"<div><p>Bone defects are one of the main causes of disability worldwide. Due to the disadvantages associated with autografts, the latest advances have been focused on tissue regeneration approaches that use injectable hydrogels or 3D printed hydrogel-based structures that could refill appropriately the bone gap area without the need for external fixatives, leading to bone formation in the long term. Injectable hydrogels could be applied in extrusion-based 3D printing as inks; in this sense, double-crosslinking hydrogels appear as ideal candidates. In this work, injectable and printable double crosslinkable hydrogels based on oxidized xanthan gum (XGox) and methacrylate polyaspartylhydrazide (PAHy-MA) were produced. The formation of dynamic hydrazone bonds, occurring between aldehyde groups on the polysaccharide backbone and hydrazine moieties of PAHy-MA, induced an instant gelation, conferring, also, injectability and self-healing properties to the hydrogels. The presence of methacrylic moieties on the synthetic polymer allowed further crosslinking upon UV irradiation that stabilized the hydrogel shape and mitigated its susceptibility to hydrolytic degradation. Obtained hydrogels showed pseudoplastic behaviour and good recovery of viscoelastic properties over time. The physicochemical and rheological characterization highlighted increased stability and higher viscoelastic moduli after photo-crosslinking. The hydrogels also showed good printability, cytocompatibility and the early formation of a bone-like matrix when osteosarcoma-derived cells (MG-63) were cultured in the scaffolds for 21 days, with an increased collagen I deposition, mineralization and the expression of characteristic osteogenic markers.</p></div>","PeriodicalId":20916,"journal":{"name":"Reactive & Functional Polymers","volume":null,"pages":null},"PeriodicalIF":4.5,"publicationDate":"2024-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141885239","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

The effects of relative humidity and salt concentration on the diameter of hydrophilic polymeric nanofibers obtained by electrospinning: Synergistic effect study by Central Composite Design (CCD) 相对湿度和盐浓度对电纺丝获得的亲水性聚合物纳米纤维直径的影响：中央复合设计（CCD）的协同效应研究

IF 4.5 3区工程技术

Reactive & Functional Polymers Pub Date : 2024-07-25 DOI: 10.1016/j.reactfunctpolym.2024.106013

{"title":"The effects of relative humidity and salt concentration on the diameter of hydrophilic polymeric nanofibers obtained by electrospinning: Synergistic effect study by Central Composite Design (CCD)","authors":"","doi":"10.1016/j.reactfunctpolym.2024.106013","DOIUrl":"10.1016/j.reactfunctpolym.2024.106013","url":null,"abstract":"<div><p>This research examines the influence of relative humidity and a model salt concentration present in the electrospinning process on the diameter of nanofibers composed of hydrophilic polymers by modifying relative humidity and the salt concentration in the polymer solution, we aim to better understand the mechanisms controlling the modulation of nanofiber diameter.</p><p>A mathematical model was established using a central composite design (CCD)-response surface methodology (RSM). It was validated by statistical tests and compared with experimental data. The model accurately represents the specific behavior and diameter of each polymer in relation to relative humidity and salt concentration, and is capable of predicting fiber diameter. Thus, it was found that there is no significant interaction between environmental parameters and added salts causing alterations in the diameter of the fibers produced, except for polyethylene oxide (PEO). At high values of both humidity and salt concentration, a synergy between the factors causes a decrease in fiber diameter.</p></div>","PeriodicalId":20916,"journal":{"name":"Reactive & Functional Polymers","volume":null,"pages":null},"PeriodicalIF":4.5,"publicationDate":"2024-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141851589","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

Ionic covalent organic framework as photo-activated nitric oxide generator for cascaded gaseous, photothermal, photodynamic and cationic bactericidal synergistic therapy 离子共价有机框架作为光活化一氧化氮发生器，用于级联气态、光热、光动力和阳离子杀菌协同疗法

IF 4.5 3区工程技术

Reactive & Functional Polymers Pub Date : 2024-07-19 DOI: 10.1016/j.reactfunctpolym.2024.106012

{"title":"Ionic covalent organic framework as photo-activated nitric oxide generator for cascaded gaseous, photothermal, photodynamic and cationic bactericidal synergistic therapy","authors":"","doi":"10.1016/j.reactfunctpolym.2024.106012","DOIUrl":"10.1016/j.reactfunctpolym.2024.106012","url":null,"abstract":"<div><p>Despite great advances in bactericidal therapy, it is still hard to achieve satisfactory therapeutic effects using the single antibacterial modality nowadays, especially the emergence of drug-resistant bacteria. To address such challenge, a light-induced synergistic therapeutic platform was facilely constructed by incorporating sodium nitroprusside (SNP) into a biocompatible ionic covalent organic framework (COF), denoted as TD-COF, to combat the bacteria infection. Upon 638 nm laser irradiation, the positive charged therapeutic agents (TD-COF-SNP) with strong affinity to the negatively charged bacterial membrane could realize the photothermal-driven cascaded multimodal synergistic treatments, in which the local high temperature could not only induce the controllable generation of nitric oxide (NO), but also significantly accelerate the formation of reactive oxygen species (ROS) via the photodynamic therapy (PDT), destroying the pathogen structure, and killing pathogenic bacteria. Meanwhile, both the in vitro and in vivo assay revealed the synergistic NO/PTT/PDT/cationic triggered by laser irradiation was also highly effective for the treatment of infected wounds caused by bacteria. This work paves an avenue for the delicately design of COF-based solid state therapeutic agents toward bacteria infection treatment.</p></div>","PeriodicalId":20916,"journal":{"name":"Reactive & Functional Polymers","volume":null,"pages":null},"PeriodicalIF":4.5,"publicationDate":"2024-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141731842","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

IF 4.5 3区工程技术

Reactive & Functional Polymers Pub Date : 2024-07-18 DOI: 10.1016/j.reactfunctpolym.2024.106014

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Poly(alkylene 2,4-furanoate)s: The potential of structural isomerism for outstanding sustainable food packaging and unexpected evidence of self-healing microstructure 聚（2,4-呋喃烯酸烷基酯）：结构异构性在实现出色的可持续食品包装方面的潜力以及自修复微观结构的意外证据

IF 4.5 3区工程技术

Reactive & Functional Polymers Pub Date : 2024-07-14 DOI: 10.1016/j.reactfunctpolym.2024.106010

{"title":"Poly(alkylene 2,4-furanoate)s: The potential of structural isomerism for outstanding sustainable food packaging and unexpected evidence of self-healing microstructure","authors":"","doi":"10.1016/j.reactfunctpolym.2024.106010","DOIUrl":"10.1016/j.reactfunctpolym.2024.106010","url":null,"abstract":"<div><p>2,5-furandicarboxylic acid is an extremely appealing renewable chemical building block because of its potential to replace the petrochemical and industrially widespread terephthalic acid via the synthesis of poly(alkylene 2,5-furanoate)s (2,5-PAF). The recent interest in its structural isomer, 2,4-furandicarboxylic acid (2,4-FDCA), opened the study of poly(alkylene 2,4-furanoate)s (2,4-PAF). In this work, 2,4-FDCA was polymerized with linear glycols of increasing chain length, via a solvent-free polycondensation reaction, obtaining high molecular weight 2,4-PAF. Namely, poly(trimethylene 2,4-furanoate) (2,4-PTF), poly(pentamethylene 2,4-furanoate) (2,4-PPeF) and poly(hexamethylene 2,4-furanoate) (2,4-PHF). These polyesters were compression molded into films and subjected to NMR, GPC, WAXS, PLOM, TGA and DSC analyses. The functional properties for food packaging applications were evaluated by mechanical and gas permeability tests. 2,4-PAF had tunable mechanical properties, depending on the glycol used, and in some cases, the mechanical behavior of a thermoplastic elastomer and shape recovery after break. In particular, 2,4-PPeF had outstanding gas barrier properties, while DSC analyses on 2,4-PHF showed an endothermic phenomenon attributed to the isotropization of a partially-ordered phase: it was possible to demonstrate that this phase was disrupted during tensile tests and slowly recovered over time, at room temperature. Overall, the results offer new insights into the structure-property relationships of poly(alkylene 2,4-furanoate)s and display their great potential for the production of biobased, monomaterial, easily recyclable and sustainable food packaging.</p></div>","PeriodicalId":20916,"journal":{"name":"Reactive & Functional Polymers","volume":null,"pages":null},"PeriodicalIF":4.5,"publicationDate":"2024-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1381514824001858/pdfft?md5=dba9b70546ed68f2595539bdd3c61ad6&pid=1-s2.0-S1381514824001858-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141691728","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Zwitterionic modification: A strategy to enhance the mechanical properties, lubricity and hemo- and biocompatibility of silicone poly(carbonate urethane urea) 聚硅氧烷聚（碳酸酯尿烷脲增强聚硅氧烷（碳酸酯聚氨酯脲）机械性能、润滑性以及血液和生物相容性的策略

IF 4.5 3区工程技术

Reactive & Functional Polymers Pub Date : 2024-07-14 DOI: 10.1016/j.reactfunctpolym.2024.106007

{"title":"Zwitterionic modification: A strategy to enhance the mechanical properties, lubricity and hemo- and biocompatibility of silicone poly(carbonate urethane urea)","authors":"","doi":"10.1016/j.reactfunctpolym.2024.106007","DOIUrl":"10.1016/j.reactfunctpolym.2024.106007","url":null,"abstract":"<div><p>Incorporating zwitterions into the blood-contacting materials has been demon-strated an effective and convenient strategy to minimize protein adsorption and platelet deposition, but is frequently detrimental to the mechanical properties. Herein a feeding 29.0 mol% sulfobetaine (SB) siloxane poly(carbonate urethane urea) (SSiPCUU) was synthesized and evaluated. Although the equilibrium water uptake ratio was increased to 1.20% markedly depressing the hydrolytic degradation resistance and mechanical properties after the zwitterionic modification, its maximum tensile stress and tear strength in the wet state still kept the highest among all the tested samples because the urea groups created therefrom gave rise to the formation of bifurcating hydrogen bonds making a significant contribution to the mechanical properties alongside the unique ion clusters formed from pendant SB species. As a consequence of zwitterionic incorporation, it exhibited an extremely low friction coefficient indicating an excellent lubricity in a wet environment without any post-treatment. Accordingly, both the nonspecific protein adsorption and platelet adhesion were evidently decreased. Moreover, it also depicted a good transparency. The high lubrication performance is desirable for lessening the damage to human blood vessels and a good transparency is favorable to the visualization of the flow of liquid in the catheter. These results illustrated the great potential of the zwitterionic SSiPCUU used in the preparation of balloon catheters, artificial blood vessels, stent coverings and other blood-contacting medical implants and devices.</p></div>","PeriodicalId":20916,"journal":{"name":"Reactive & Functional Polymers","volume":null,"pages":null},"PeriodicalIF":4.5,"publicationDate":"2024-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141699352","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

Corrigendum to “Sulfurized DOPO synergizes with phenoxytriazine to impart epoxy thermoset fire safety, thermal stability and mechanical toughness” [React. Funct. Polym. 200 (2024)105927] 硫化 DOPO 与苯氧基三嗪协同赋予环氧热固性防火安全性、热稳定性和机械韧性》的更正[React. Funct. Polym.

IF 5.1 3区工程技术

Reactive & Functional Polymers Pub Date : 2024-07-14 DOI: 10.1016/j.reactfunctpolym.2024.106008

Yuzhao Qi, Xiaolin Ye, Xuanying Huan, Qiu Xu, Shikai Ma, Dongmei Bao, Yupeng Zhang, Haijun Du, Xueqing Hou, Zhu Wen

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