Reactive & Functional Polymers最新文献

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Synthesis and isomeric effect of ethynyl-containing sesamol-based monobenzoxazine resins 含乙基芝麻醇基单苯并恶嗪树脂的合成及其异构体效应
IF 4.5 3区 工程技术
Reactive & Functional Polymers Pub Date : 2025-03-04 DOI: 10.1016/j.reactfunctpolym.2025.106245
Min Zhong , Weichen Sheng , Jianfeng Chen , Han Zhang , Hongping Li , Kan Zhang
{"title":"Synthesis and isomeric effect of ethynyl-containing sesamol-based monobenzoxazine resins","authors":"Min Zhong ,&nbsp;Weichen Sheng ,&nbsp;Jianfeng Chen ,&nbsp;Han Zhang ,&nbsp;Hongping Li ,&nbsp;Kan Zhang","doi":"10.1016/j.reactfunctpolym.2025.106245","DOIUrl":"10.1016/j.reactfunctpolym.2025.106245","url":null,"abstract":"<div><div>The objective of this paper is to conduct a comparative analysis of sesamol-based benzoxazine monomers derived from anilines with an ethynyl substituent in a different position and to obtain some laws to guide the design of thermosets. The synthesis of bio-benzoxazine monomers (S-a, S-<em>o</em>ea, S-<em>m</em>ea, and S-<em>p</em>ea) via a one-step method from sesamol, a biomass monophenol, in the presence of polyformaldehyde by combining four different amines (aniline, <em>ortho</em>-ethynyl aniline, <em>meta</em>-ethynyl aniline, and <em>para</em>-ethynyl aniline), respectively. The structures of four new benzoxazine monomers were characterized by <sup>1</sup>H NMR, <sup>13</sup>C NMR, 2D-HMQC, and FT IR analysis. The FT IR spectra calculated by Gaussian 16 exhibited a high degree of consistency with the experimental data. The DSC scanning results of the monomers demonstrated that the order of the maximum exothermic peak temperature of polymerization was as follows: S-<em>o</em>ea (198.3 °C) &lt; S-<em>p</em>ea (202.1 °C) &lt; S-<em>m</em>ea (216.8 °C) &lt; S-a (240.2 °C), which is in general agreement with the energy level order of HOMO-LUMO, as determined by Gaussian analysis. In addition, the reaction mechanisms of the oxazine ring and the ethynyl moiety were proposed in conjunction with an investigation of the polymerization process by in-situ FT IR. The TGA and MCC test results showed that the polymers (poly(S-<em>o</em>ea), poly(S-<em>m</em>ea), and poly(S-<em>p</em>ea)) derived from the corresponding monomers with ethynyl substituent in various site exhibit both excellent thermal stability and flame retardancy. Notably, poly(S-<em>p</em>ea) exhibited the highest carbon yield (70.2 %) at 800 °C. The incorporation of the ethynyl group not only reduces the polymerization process of benzoxazine monomers but also enhances the performance of resulting polybenzoxazines. This work offers a valuable reference for the preparation of optimal benzoxazine structures in future research.</div></div>","PeriodicalId":20916,"journal":{"name":"Reactive & Functional Polymers","volume":"212 ","pages":"Article 106245"},"PeriodicalIF":4.5,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143601251","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
Synthesis and characterization of highly flexible polyguanamines bearing di-n-octylamino groups in their side chains 侧链上含二正辛胺基的高柔性聚鸟胺的合成与表征
IF 4.5 3区 工程技术
Reactive & Functional Polymers Pub Date : 2025-03-04 DOI: 10.1016/j.reactfunctpolym.2025.106247
Tadashi Tsukamoto , Takara Goto , Yuji Shibasaki
{"title":"Synthesis and characterization of highly flexible polyguanamines bearing di-n-octylamino groups in their side chains","authors":"Tadashi Tsukamoto ,&nbsp;Takara Goto ,&nbsp;Yuji Shibasaki","doi":"10.1016/j.reactfunctpolym.2025.106247","DOIUrl":"10.1016/j.reactfunctpolym.2025.106247","url":null,"abstract":"<div><div>In this study, polyguanamines were synthesized by polymerizing 2-amino-4,6-dichloro-<em>N</em>,<em>N</em>-dioctyl-1,3,5-triazine (<strong>DOctATC</strong>) with various <em>α</em>,<em>ω</em>-alkylene diamines, namely, 1,12-diaminododecane, 1,10-diaminodecane, and 1,8-diaminooctane. The resulting polyguanamines exhibited good solubility in typical organic solvents, particularly in non-polar ones. Films of the synthesized polyguanamines, prepared <em>via</em> casting, were soft and sticky. Under both N<sub>2</sub> and air flow, the polyguanamines demonstrated 5 % weight loss at temperatures of up to 380 °C. Furthermore, their glass transition temperatures (<em>T</em><sub>g</sub>) were approximately −20 °C. Thermomechanical analysis revealed a softening temperature above <em>T</em><sub>g</sub>, while dynamic mechanical analysis showed a relaxation corresponding to this softening temperature. During tensile tests, the polyguanamine films displayed large elongations ranging1 from 54 %–2034 %.</div></div>","PeriodicalId":20916,"journal":{"name":"Reactive & Functional Polymers","volume":"212 ","pages":"Article 106247"},"PeriodicalIF":4.5,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143579497","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
Comparative studies of specific capacitance in different electrolytes of two Ru(II)-metallopolymers synthesized using positional isomeric ligands
IF 4.5 3区 工程技术
Reactive & Functional Polymers Pub Date : 2025-03-03 DOI: 10.1016/j.reactfunctpolym.2025.106246
Shubham Bawa, Samaresh Ghosh, Anil Kumar, Anasuya Bandyopadhyay
{"title":"Comparative studies of specific capacitance in different electrolytes of two Ru(II)-metallopolymers synthesized using positional isomeric ligands","authors":"Shubham Bawa,&nbsp;Samaresh Ghosh,&nbsp;Anil Kumar,&nbsp;Anasuya Bandyopadhyay","doi":"10.1016/j.reactfunctpolym.2025.106246","DOIUrl":"10.1016/j.reactfunctpolym.2025.106246","url":null,"abstract":"<div><div>Metallopolymers are hybrid materials made from both organic and inorganic components, with adjustable properties that make them great for advanced uses. This study focuses on the synthesis and characterization of Ru(II)-metallopolymers using positionally isomeric ditopic ligands with multiple binding sites, enabling stable metal-ligand complexes and the growth of linear polymer chains. Analytical techniques such as ATR-IR, NMR, UV–Vis, and electrochemical methods were employed to assess their structural, electronic, and redox properties. A detailed investigation of specific capacitance in various electrolytes revealed capacitance values of 131 Fg<sup>−1</sup> in 1 M H<sub>2</sub>SO<sub>4</sub> for Ru(II)-L<sub>1</sub> Poly and 130 Fg<sup>−1</sup> in LiClO<sub>4</sub> for Ru(II)-L<sub>2</sub> Poly, with robust cyclic stability retaining 98 % of initial capacitance after 8000 cycles. These metallopolymers offer superior compatibility and flexibility with organic conjugated polymers, making them ideal for making hybrid energy storage devices. Their excellent retention and stability underscore their potential as redox additives in supercapacitors. This work not only addresses gaps in energy storage research but also highlights the adaptability of Ru(II)-metallopolymers in developing high-performance, electrochemical materials for advanced energy technologies.</div></div>","PeriodicalId":20916,"journal":{"name":"Reactive & Functional Polymers","volume":"212 ","pages":"Article 106246"},"PeriodicalIF":4.5,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143562029","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
ZnTi layered double hydroxide/dealkaline lignin 2D/2D nanosheets for ultraviolet shielding poly(ethylene terephthalate) nanocomposites
IF 4.5 3区 工程技术
Reactive & Functional Polymers Pub Date : 2025-03-03 DOI: 10.1016/j.reactfunctpolym.2025.106249
Yan Gao , Haoguan Gui , Jiale Xu , Ruiqi Shen , Leyan Wei , Xi Zhao , Shixiang Zuo , Jie Xu , Xiazhang Li , Chao Yao
{"title":"ZnTi layered double hydroxide/dealkaline lignin 2D/2D nanosheets for ultraviolet shielding poly(ethylene terephthalate) nanocomposites","authors":"Yan Gao ,&nbsp;Haoguan Gui ,&nbsp;Jiale Xu ,&nbsp;Ruiqi Shen ,&nbsp;Leyan Wei ,&nbsp;Xi Zhao ,&nbsp;Shixiang Zuo ,&nbsp;Jie Xu ,&nbsp;Xiazhang Li ,&nbsp;Chao Yao","doi":"10.1016/j.reactfunctpolym.2025.106249","DOIUrl":"10.1016/j.reactfunctpolym.2025.106249","url":null,"abstract":"<div><div>Ultraviolet (UV) protection is crucial for enhancing the durability, reliability, and safety of polymeric products. To address this need, a two-dimensional (2D) UV nano-filter was developed by integrating ZnTi layered double hydroxide (ZnTi-LDH) with dealkaline lignin (DL). The ZnTi-LDH/DL nanosheets were then incorporated into a poly(ethylene terephthalate) (PET) matrix using an in-situ polymerization technique. To evaluate its UV shielding performance, the microstructures of the ZnTi-LDH/DL nanosheets and the physicochemical properties of the resulting PET nanocomposites were investigated. The ZnTi-LDH/DL nanosheets retained the intrinsic crystalline structure and 2D morphology of pristine ZnTi-LDH while exhibiting significantly enhanced UV absorption over a broader wavelength range. Incorporating these nanosheets heightened the thermal stability, crystallization behavior, mechanical properties, and UV shielding performance of PET nanocomposites. At a mass fraction of 0.5 % nanosheets, the PET nanocomposite achieved optimal overall performance, exhibiting a Young's modulus of 436.8 MPa, an elongation at break of approximately 580 % and over 90 % blocking efficiency for UVA radiation (400–315 nm). These results indicate the potential of these PET nanocomposites for UV protection applications, particularly in UVA blocking.</div></div>","PeriodicalId":20916,"journal":{"name":"Reactive & Functional Polymers","volume":"212 ","pages":"Article 106249"},"PeriodicalIF":4.5,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143579494","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
Dialdehyde carboxylated cellulose green crosslinked soybean protein isolate based on Schiff base reaction to improve the emulsification performance and stability of emulsion
IF 4.5 3区 工程技术
Reactive & Functional Polymers Pub Date : 2025-03-02 DOI: 10.1016/j.reactfunctpolym.2025.106244
Yanling Jiang , Jianshuo Miao , Qiong Jiang , Yidan Zhang , Liuting Mo , Wei Gao , Zhiyong Qin
{"title":"Dialdehyde carboxylated cellulose green crosslinked soybean protein isolate based on Schiff base reaction to improve the emulsification performance and stability of emulsion","authors":"Yanling Jiang ,&nbsp;Jianshuo Miao ,&nbsp;Qiong Jiang ,&nbsp;Yidan Zhang ,&nbsp;Liuting Mo ,&nbsp;Wei Gao ,&nbsp;Zhiyong Qin","doi":"10.1016/j.reactfunctpolym.2025.106244","DOIUrl":"10.1016/j.reactfunctpolym.2025.106244","url":null,"abstract":"<div><div>To enhance the stabilization emulsion of soybean protein isolate (SPI), many strategies have been developed, such as modifying the properties of plant protein, using plant protein-polysaccharide complex, forming emulsion and so on. The purpose of this study was to investigate the response of SPI and dialdehyde carboxylated cellulose nanofibers (DCNFs) with Schiff base at different concentrations and its effect on the emulsification property of SPI were investigated. The results indicated that the α-helix and β-turn contents of the protein in the SPI/DCNFs conjugates decreased by 35.9 % and 2 %, respectively. The fluorescence intensity reduced as the addition of DCNFs, indicating that there was a static quenching between DCNFs and SPI. SPI was caused by DCNFs to reduce the surface hydrophobicity, expand the molecular structure of protein, and form the new covalent bonds (C=N). In addition, The average diameter of the SPI/DCNFs emulsion was reduced to 117 nm, the zeta potential was enhanced to −35.6 mV, and the emulsification performance and stability were increased by 40.9 % and 40.8 %, respectively. The results suggested that the Schiff base reaction generated the conformational change of protein and improved the emulsification function, which offered a possible way to control glycosylation and improve the emulsifying property of SPI.</div></div>","PeriodicalId":20916,"journal":{"name":"Reactive & Functional Polymers","volume":"212 ","pages":"Article 106244"},"PeriodicalIF":4.5,"publicationDate":"2025-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143549294","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
Synthesis of collagen-grafted polyacrylamide hydrogel for biomedical applications
IF 4.5 3区 工程技术
Reactive & Functional Polymers Pub Date : 2025-02-28 DOI: 10.1016/j.reactfunctpolym.2025.106243
Qian Liu , Xiaoming Liu , Kai Chen , Tao Zhang , Ye Feng , Tianyu Xu , Shaoshan Pan , Xue Fang , Jin Zhang , Shengxia Zheng , Tianzhi Luo
{"title":"Synthesis of collagen-grafted polyacrylamide hydrogel for biomedical applications","authors":"Qian Liu ,&nbsp;Xiaoming Liu ,&nbsp;Kai Chen ,&nbsp;Tao Zhang ,&nbsp;Ye Feng ,&nbsp;Tianyu Xu ,&nbsp;Shaoshan Pan ,&nbsp;Xue Fang ,&nbsp;Jin Zhang ,&nbsp;Shengxia Zheng ,&nbsp;Tianzhi Luo","doi":"10.1016/j.reactfunctpolym.2025.106243","DOIUrl":"10.1016/j.reactfunctpolym.2025.106243","url":null,"abstract":"<div><div>The mechanical properties of extracellular matrix (ECM) mimicked by hydrogels have been extensively utilized in investigating cell-ECM interactions, employing materials such as polyacrylamide gels and polydimethylsiloxane gels. However, these materials typically require the coupling of ECM proteins to provide cell adhesion ligands, leading to complex procedures and high costs. In this study, we present a novel approach for fabricating a double network hydrogel (PAAm-Col) that combined the stable and tunable mechanical properties of the PAM network with cell-adhesive functionalities provided by the collagen network. By adjusting the ratio of acrylamide to collagen, the hydrogel's elastic modulus could be tailored while maintaining superior light transmittance, hydrophilicity, and stability. Subsequent in vitro cell studies, cryopreserved embryos culture and in vivo subcutaneous implantation of the hydrogel in mice demonstrated its efficacy in facilitating cell proliferation under varying stiffness conditions. The gels exhibited excellent biocompatibility, minimal inflammatory response, and potential for drug delivery. Furthermore, the substitution of bovine tendon type I collagen with recombinant human type I collagen in the preparation process yielded hydrogels that retained exceptional biocompatibility. This work demonstrated that PAAm-Col is a novel biomaterial for various biomedical applications.</div></div>","PeriodicalId":20916,"journal":{"name":"Reactive & Functional Polymers","volume":"212 ","pages":"Article 106243"},"PeriodicalIF":4.5,"publicationDate":"2025-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143570569","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
Structure optimization of epoxy MQ silicone resin for excellent transparency, wear resistance, and anti-smudge coatings
IF 4.5 3区 工程技术
Reactive & Functional Polymers Pub Date : 2025-02-28 DOI: 10.1016/j.reactfunctpolym.2025.106242
Hailong Wang, Jialong Zhu, Haolan Gou, Wenyu Fang, Hong Fan
{"title":"Structure optimization of epoxy MQ silicone resin for excellent transparency, wear resistance, and anti-smudge coatings","authors":"Hailong Wang,&nbsp;Jialong Zhu,&nbsp;Haolan Gou,&nbsp;Wenyu Fang,&nbsp;Hong Fan","doi":"10.1016/j.reactfunctpolym.2025.106242","DOIUrl":"10.1016/j.reactfunctpolym.2025.106242","url":null,"abstract":"<div><div>The demand for high-transparent functional coatings with excellent hardness and excellent anti-smudge properties has increased significantly, especially for display devices such as smartphones and tablets. In this work, epoxy MQ silicone resins with different epoxy values were synthesized by sol-gel method and hydrosilylation reaction, and then cured with methyl hexahydrophthalic anhydride to obtain an organic-inorganic hybrid coating with extraordinary transparency (99.3 % at 550 nm) and high hardness (0.21 GPa). By introducing fluorocarbon chains into MQ silicone resin, the surface energy of the coating is reduced from 31.9 ± 0.5 mJ/m<sup>2</sup> to 23.1 ± 0.3 mJ/m<sup>2</sup> and the water contact angle is increased from 84.0° to 107.9°, showing excellent self-cleaning properties while maintaining good mechanical properties (hardness, 0.19 GPa) and excellent transparency (98 % at 550 nm). Moreover, the coating could maintain its outstanding performance after 100 cycles of steel wool abrasion or heating at 60 °C for 60 h. Therefore, this work provides insights into the fabrication of multifunctional coatings integrated with high transparency, wear resistance, as well as anti-smudge properties for touch screens.</div></div>","PeriodicalId":20916,"journal":{"name":"Reactive & Functional Polymers","volume":"212 ","pages":"Article 106242"},"PeriodicalIF":4.5,"publicationDate":"2025-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143562028","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
Synthesis, characterization, and pharmaceutical activities of new metallated ionic chitosan Schiff base hydrogels as potential chemotherapeutic agents 作为潜在化疗药物的新型金属离子壳聚糖席夫碱水凝胶的合成、表征和药物活性
IF 4.5 3区 工程技术
Reactive & Functional Polymers Pub Date : 2025-02-28 DOI: 10.1016/j.reactfunctpolym.2025.106212
Heba W. Alhamdi , Norah F. Alqahtani , Eman Fayad , Lamiaa A. Salama , Hanadi A. Katouah , Dalal S. Alshaya , Mohammad Y. Alfaifi , Serag Eldin I Elbehairi , Amany A. Elkashef , Reda F.M. Elshaarawy
{"title":"Synthesis, characterization, and pharmaceutical activities of new metallated ionic chitosan Schiff base hydrogels as potential chemotherapeutic agents","authors":"Heba W. Alhamdi ,&nbsp;Norah F. Alqahtani ,&nbsp;Eman Fayad ,&nbsp;Lamiaa A. Salama ,&nbsp;Hanadi A. Katouah ,&nbsp;Dalal S. Alshaya ,&nbsp;Mohammad Y. Alfaifi ,&nbsp;Serag Eldin I Elbehairi ,&nbsp;Amany A. Elkashef ,&nbsp;Reda F.M. Elshaarawy","doi":"10.1016/j.reactfunctpolym.2025.106212","DOIUrl":"10.1016/j.reactfunctpolym.2025.106212","url":null,"abstract":"<div><div>Facile and green protocols were used to synthesize a novel series of metallated ionic chitosan Schiff base hydrogels (ICSBHs) by grafting low-molecular-weight chitosan (LMC) with salicylaldehyde-imidazolium/thiazolium ionic liquids (Me<sub>2</sub>ImSal<sup>+</sup>MCl<sub>x</sub><sup>−</sup> and MeThSal<sup>+</sup>MCl<sub>x</sub><sup>−</sup>, 2a-f) (M = Ti, x = 6; M = Pd and x = 4). Physical characterization of the new hydrogels was performed based on solubility, sol-gel fractions, and solvent uptake measurements. Meanwhile, these hydrogels were structurally and morphologically characterized using microanalytical and spectral analyses (FTIR, NMR (<sup>1</sup>H NMR, <sup>13</sup>C NMR, and <sup>1</sup>H<img><sup>15</sup>N HMBC NMR), EDX, ESI-MS, and SEM). Interestingly, PdCl<sub>4</sub> ion performs better than TiCl<sub>6</sub> as a crosslinking agent for cationic chitosan Schiff base, as revealed from the higher crosslinking levels and, consequently, porosity of PdCl<sub>4</sub>-based hydrogels compared to TiCl<sub>6</sub>-based hydrogels. Interestingly, the PdCl<sub>4</sub>-based hydrogel (ICSBH<sub>6</sub>) exhibited significant antimicrobial potential, outperforming the clinical drug ciprofloxacin (CIP) (MIC/MBC values of ICSBH<sub>6</sub> were 15.85 /31.7, while the values were 33.4/66.8 for CIP, against <em>S. aureus</em>). Meanwhile, ICSBH<sub>6</sub> showed superior antibiofilm and anticancer potentials. The MTT assay findings revealed ICSBH<sub>6</sub> as a promising and safe anti-hepatocarcinoma chemotherapeutic agent with a significantly low IC<sub>50</sub> value of 3.79 μg/mL against Huh-7 cancer cells, while a high IC<sub>50</sub> value (48.87 μg/mL) against normal BNL cells. According to the results of in silico studies, ICSBH<sub>6</sub> exhibits higher binding affinities for bacterial biofilm formation and antibiotic resistance-induction proteins (6M3A/ 7C7R) (−11.1/−11.77 kcal/mol) than CIP.</div></div>","PeriodicalId":20916,"journal":{"name":"Reactive & Functional Polymers","volume":"212 ","pages":"Article 106212"},"PeriodicalIF":4.5,"publicationDate":"2025-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143579493","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
Containing P/N/B/S multi-element flame retardant epoxy resin: Low smoke, low dielectric strength, UV shielding
IF 4.5 3区 工程技术
Reactive & Functional Polymers Pub Date : 2025-02-27 DOI: 10.1016/j.reactfunctpolym.2025.106226
Haopeng Cai , Wanyu Huang , Yufei Peng , Wenbo Wang , Lanlan Sun
{"title":"Containing P/N/B/S multi-element flame retardant epoxy resin: Low smoke, low dielectric strength, UV shielding","authors":"Haopeng Cai ,&nbsp;Wanyu Huang ,&nbsp;Yufei Peng ,&nbsp;Wenbo Wang ,&nbsp;Lanlan Sun","doi":"10.1016/j.reactfunctpolym.2025.106226","DOIUrl":"10.1016/j.reactfunctpolym.2025.106226","url":null,"abstract":"<div><div>With the development of rail transit in the direction of high-speed and safety, the multifunctional epoxy resin (EP) featuring flame resistance, low smoke emissions, low dielectric constant and Superior UV shielding has excellent development prospects. This study introduced a multifunctional new reactive flame retardant FSD, which, by incorporating P/N/S/B, significantly modified epoxy resin and achieved multi-functional upgrading of the resin. The results showed that the limiting oxygen index (LOI) of the modified epoxy resin EP/FSD7.5 was enhanced to 33.2 %, and there was a notable enhancement in the material's fire safety, attributed to a 45.03 % reduction in the peak heat release rate (PHRR) and a 44 % decrease in total smoke production (TSP). In addition, the introduction of FSD gave EP excellent UV shielding properties and optimized its dielectric properties without sacrificing mechanical properties. In particular, in the smoke density test, the specific optical density of the fourth minute (<em>D</em><sub><em>S</em></sub> (4)) and Cumulative smoke concentration in the first four minutes (<em>VOF</em><sub>4</sub>) values for the EP/FSD7.5 composite successfully attained the HL1 classification under the EN45545–2 regulations. The research outcomes offer an innovative approach to advancing rail transit materials, with significant implications and practical application value.</div></div>","PeriodicalId":20916,"journal":{"name":"Reactive & Functional Polymers","volume":"212 ","pages":"Article 106226"},"PeriodicalIF":4.5,"publicationDate":"2025-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143549291","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
Specific extraction of ciprofloxacin from milk by magnetic molecularly imprinted polymers
IF 4.5 3区 工程技术
Reactive & Functional Polymers Pub Date : 2025-02-27 DOI: 10.1016/j.reactfunctpolym.2025.106227
Shaolin Deng , Xiaolin Yue , Ping Li , Haoyue Xie , Zehua Huang , Wenyuan Tan
{"title":"Specific extraction of ciprofloxacin from milk by magnetic molecularly imprinted polymers","authors":"Shaolin Deng ,&nbsp;Xiaolin Yue ,&nbsp;Ping Li ,&nbsp;Haoyue Xie ,&nbsp;Zehua Huang ,&nbsp;Wenyuan Tan","doi":"10.1016/j.reactfunctpolym.2025.106227","DOIUrl":"10.1016/j.reactfunctpolym.2025.106227","url":null,"abstract":"<div><div>In this study, core-shell magnetic molecularly imprinted polymers (MMIPs) were rationally designed using Fe<sub>3</sub>O<sub>4</sub>@SiO<sub>2</sub> nanoparticles as carriers for selective recognition and extraction of ciprofloxacin (CIP) in milk matrices. Compared with the reported molecularly imprinted polymers, The synthesized MMIPs demonstrated exceptional magnetic responsiveness enabling rapid solid-liquid separation. Static and dynamic adsorption studies revealed a maximum CIP adsorption capacity of 11.64 mg/g, Scatchard model analysis identified two distinct binding sites: high-affinity and low-affinity sites. Pseudo-second-order kinetics indicating chemisorption-dominated binding. Moreover, selective adsorption experiments confirmed high specificity toward CIP adsorption, with no significant interference from structural analogs. Coupled with HPLC-DAD, the method achieved sensitive detection of CIP with limits of detection (LOD) and limits of quantification (LOQ) values of 0.86 g/L and 2.6 g/L, respectively. In the practical application of commercial samples, the recovery rate was 84.11–99.11 %, and the precision (RSD)was 0.5–1.21 %, demonstrating robustness for CIP enrichment in complex milk products.</div></div>","PeriodicalId":20916,"journal":{"name":"Reactive & Functional Polymers","volume":"212 ","pages":"Article 106227"},"PeriodicalIF":4.5,"publicationDate":"2025-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143549296","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
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