Reactive & Functional Polymers最新文献_第7页

Facile preparation and application of ternary hybrid of POSS/DOPO/F macromolecular as highly-effective epoxy modifier 作为高效环氧改性剂的 POSS/DOPO/F 大分子三元杂化物的简便制备和应用

IF 4.5 3区工程技术

Reactive & Functional Polymers Pub Date : 2024-06-15 DOI: 10.1016/j.reactfunctpolym.2024.105989

Yongming Chen , Shunwei Wu , Lu Li , Birong Zeng , Kaibin He , Weiang Luo , Yiting Xu , Conghui Yuan , Lizong Dai

{"title":"Facile preparation and application of ternary hybrid of POSS/DOPO/F macromolecular as highly-effective epoxy modifier","authors":"Yongming Chen , Shunwei Wu , Lu Li , Birong Zeng , Kaibin He , Weiang Luo , Yiting Xu , Conghui Yuan , Lizong Dai","doi":"10.1016/j.reactfunctpolym.2024.105989","DOIUrl":"10.1016/j.reactfunctpolym.2024.105989","url":null,"abstract":"<div>In order to easily achieve the multifunctionality of epoxy resin, this paper designs and synthesizes a ternary hybrid copolymer containing POSS/DOPO/F. This method not only facile combines POSS with DOPO, but also introduces F element to further reduce the surface energy of epoxy composite materials. Research has found that the POSS/DOPO/F ternary hybrid copolymer can achieve a UL-94 flame retardant rating of V-0 with just 5 wt% of the modifier, and the limit oxygen index of epoxy composites is 32% (23.1% higher than pure epoxy resin). The residual char after combustion is denser and the carbonization rate is higher. Furthermore, we conducted an in-depth analysis of the flame retardant mechanism of POSS/DOPO/F ternary hybrid copolymer epoxy composites using TGA-FTIR technology and EDS. In addition, the introduction of ternary hybrid polymers effectively improves the mechanical properties of epoxy composite materials and significantly reduces the surface energy of the composite materials.</div>","PeriodicalId":20916,"journal":{"name":"Reactive & Functional Polymers","volume":null,"pages":null},"PeriodicalIF":4.5,"publicationDate":"2024-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141410134","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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The super-fast synthesis of high-strength epoxy adhesives by UV-initiated frontal polymerization at room temperature 室温下通过紫外线引发的正面聚合超快速合成高强度环氧树脂粘合剂

IF 4.5 3区工程技术

Reactive & Functional Polymers Pub Date : 2024-06-14 DOI: 10.1016/j.reactfunctpolym.2024.105987

Jiongfeng Sun , Yi Hong , Guofu Qiao

引用次数: 0

Diels-Alder-imprinted furan-thiosemicarbazide sorbents for selective removal of cadmium (II) ions 用于选择性去除镉 (II) 离子的 Diels-Alder-imprinted furan-thiosemicarbazide 吸附剂

IF 4.5 3区工程技术

Reactive & Functional Polymers Pub Date : 2024-06-13 DOI: 10.1016/j.reactfunctpolym.2024.105963

Rua B. Alnoman , Majed S. Aljohani , Hussam Y. Alharbi , Nadia H. Elsayed , M. Monier

{"title":"Diels-Alder-imprinted furan-thiosemicarbazide sorbents for selective removal of cadmium (II) ions","authors":"Rua B. Alnoman , Majed S. Aljohani , Hussam Y. Alharbi , Nadia H. Elsayed , M. Monier","doi":"10.1016/j.reactfunctpolym.2024.105963","DOIUrl":"10.1016/j.reactfunctpolym.2024.105963","url":null,"abstract":"<div>The exploration of removing heavy metals from water solutions with specific sorbents is a compelling research area. However, the selectivity of these sorbents towards particular metals is limited. To address this, an innovative furan-thiosemicarbazide-based chelating polymer within a poly(acrylonitrile-co-divinylbenzene) framework (FTC<img>P), has been synthesized. This new polymer demonstrates a high selectivity for capturing Cd2+ ions. To further enhance its performance, the polymer was cross-linked with a bis(maleimido)ethane (BME) through a Diels-Alder reaction, effectively embedding the Cd2+ ions within its structure, resulting in a ion-imprinted material (Cd-II-P) after elution with EDTA and nitric acid. The development and modification of this polymer were meticulously verified using FTIR and NMR spectroscopy, while the chelation efficiency for Cd2+ was evaluated through XPS and FTIR analysis. Additionally, the sorbent's surface characteristics were examined via SEM, revealing the polymer's morphology. Notably, the Cd-II-P variant exhibited superior specificity for Cd2+ ions compared to other metals, with the most effective adsorption occurring at a pH of 5. This sorbent reached an adsorption capacity of 341 mg/g, aligning with the Langmuir adsorption isotherm model and adhering to a pseudo-second-order kinetics model in its adsorption process.</div>","PeriodicalId":20916,"journal":{"name":"Reactive & Functional Polymers","volume":null,"pages":null},"PeriodicalIF":4.5,"publicationDate":"2024-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141391270","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

Polymerization behaviors and branching structural analysis of branched polymers in self-condensing atom transfer radical copolymerization of different inimers 不同嵌段自冷凝原子转移自由基共聚过程中支化聚合物的聚合行为和支化结构分析

IF 5.1 3区工程技术

Reactive & Functional Polymers Pub Date : 2024-06-13 DOI: 10.1016/j.reactfunctpolym.2024.105983

Xiaoqiang Xue , Mingjian Feng , Yangjing Chen , Hongting Pu , Wenyan Huang , Hongjun Yang , Li Jiang , Qimin Jiang , Bibiao Jiang , Sridhar Komarneni

{"title":"Polymerization behaviors and branching structural analysis of branched polymers in self-condensing atom transfer radical copolymerization of different inimers","authors":"Xiaoqiang Xue , Mingjian Feng , Yangjing Chen , Hongting Pu , Wenyan Huang , Hongjun Yang , Li Jiang , Qimin Jiang , Bibiao Jiang , Sridhar Komarneni","doi":"10.1016/j.reactfunctpolym.2024.105983","DOIUrl":"10.1016/j.reactfunctpolym.2024.105983","url":null,"abstract":"<div>The investigation of the relationship between the structure and properties of branched polymers heavily relies on the branched morphology. In this study, we explored the electron-rich and electron-poor effects that arise from different types of double bonds in inimers using self-condensing atom transfer radical polymerization (ATRP). A comparative analysis of polymerization systems using various inimers as branching monomers revealed notable differences. Specifically, when examining styrene-based initiator (St-inimer) systems, the absence of a discernible nucleation feature and the non-conformance to the “core-first-arm-later” method for synthesizing star-shaped polystyrene (branching morphology factor ε is higher than 1.0) were observed. On the other hand, the methacrylate-based initiator (MA-inimer) systems exhibited a clear nucleation process during polymerization, followed by linear molecular weight growth and a constant polydispersity characteristic, consistent with the “core-first-arm-later” approach for synthesizing star-shaped polystyrene (ε is about 0.6, lower than 1.0). The maleimide-based initiator (Mal-inimer) systems demonstrated an initial nucleation phase, a mid-stage linear growth phase with a constant polydispersity characteristic, and a late-stage nonlinear growth phase resulting in a broader polydispersity index. As a result, the polymerization process in maleimide-based initiator systems conforms to the law of preparing star branched polymers with multi-core structures (ε is about 0.8).</div>","PeriodicalId":20916,"journal":{"name":"Reactive & Functional Polymers","volume":null,"pages":null},"PeriodicalIF":5.1,"publicationDate":"2024-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141397456","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

Reprocessing, shape recovery and dielectric properties of nanocomposites of Polyhydroxyurethane with barium Titanate 聚羟基聚氨酯与钛酸钡纳米复合材料的再加工、形状恢复和介电性能

IF 4.5 3区工程技术

Reactive & Functional Polymers Pub Date : 2024-06-12 DOI: 10.1016/j.reactfunctpolym.2024.105986

Muhammad Usman Saeed, Guohua Hang, Yuan Gao, Jiawei Hu, Lei Li, Tao Zhang, Sixun Zheng

{"title":"Reprocessing, shape recovery and dielectric properties of nanocomposites of Polyhydroxyurethane with barium Titanate","authors":"Muhammad Usman Saeed, Guohua Hang, Yuan Gao, Jiawei Hu, Lei Li, Tao Zhang, Sixun Zheng","doi":"10.1016/j.reactfunctpolym.2024.105986","DOIUrl":"10.1016/j.reactfunctpolym.2024.105986","url":null,"abstract":"<div>Poly(N-vinyl pyrrolidone) (PVPy) chains were grafted onto the surfaces of barium titanate (BaTiO3) nanoparticles via the surface-initiated living/controlled radical polymerization of N-vinyl pyrrolidone. The PVPy-grafted BaTiO3 nanoparticles were then incorporated into a crosslinked polyhydroxyurethane (PHU) which was derived from bis(six-membered) cyclic carbonate and a triamine (i.e., Jeffamine T400). It was found that BaTiO3 nanoparticles were uniformly dispersed into the PHU matrix. The generation of nanocomposites resulted that the glass transition temperatures (Tg’s) and mechanical properties were significantly enhanced. In the meantime, the nanocomposites had the dielectric properties superior to control PHU; the shape memory properties of the materials were significantly improved in terms of response, fixity of transient shape and recovery of the original shapes. Thanks to transcarbamoylation of hydroxyurethane structural units, the crosslinked nanocomposites can be reprocessed at elevated temperature. It was found that dibutyltin dilaurate (DBTDL) was an effective catalyst to decrease the Arrhenius activation energy of the dynamic reaction; the reprocessing of the nanocomposites can be carried out at the temperature as low as 120 °C.</div>","PeriodicalId":20916,"journal":{"name":"Reactive & Functional Polymers","volume":null,"pages":null},"PeriodicalIF":4.5,"publicationDate":"2024-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141403637","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

An asymmetric super-wetting Janus PVDF oil-water separation membrane fabricated by a simple method on a non-woven substrate 用简单方法在无纺基材上制造出非对称超润湿 Janus PVDF 油水分离膜

IF 5.1 3区工程技术

Reactive & Functional Polymers Pub Date : 2024-06-10 DOI: 10.1016/j.reactfunctpolym.2024.105982

Jikui Wang, Yuwei Feng, Yicheng Huang, Xinquan Zou, Yi Zhang, Wenxiu Liu, Kun Wang

{"title":"An asymmetric super-wetting Janus PVDF oil-water separation membrane fabricated by a simple method on a non-woven substrate","authors":"Jikui Wang, Yuwei Feng, Yicheng Huang, Xinquan Zou, Yi Zhang, Wenxiu Liu, Kun Wang","doi":"10.1016/j.reactfunctpolym.2024.105982","DOIUrl":"https://doi.org/10.1016/j.reactfunctpolym.2024.105982","url":null,"abstract":"<div>Membrane separation technology is an important method of treating oily wastewater with great potential for development. However, preparation of membranes for efficiently separating complex oil-water mixtures continues to be challenging. In this study, a strategy for efficient construction of asymmetric wetting surfaces was designed, and successfully prepared an asymmetric super wetting Janus polyvinylidene fluoride (PVDF) modified separation membrane to separate complex oil-water emulsion. The composite PVDF membrane was prepared using a non-woven fabric substrate and phase conversion method. Subsequently, composite membrane was rapidly hydrophilic modified on one side using tannic acid and 3-aminopropyltriethoxysilane under the strong oxidizing effect of oxidant sodium periodate. Then non-woven fabric substrate was peeled off to obtain a Janus PVDF modified separation membrane. The front and back sides of the separation membrane have highly asymmetric micromorphology and wettability. The front side has hydrophilic/underwater oleophobic wettability (with a water contact angle of 31°). The separation efficiency of oil-in-water emulsion is up to 99.5%, while the back side has super lipophilic/underoil hydrophobic wettability (with a water contact angle of 131°). The separation efficiency of water-in-oil emulsion is up to 98.6%, improving the efficiency of oil in water separation and application range.</div>","PeriodicalId":20916,"journal":{"name":"Reactive & Functional Polymers","volume":null,"pages":null},"PeriodicalIF":5.1,"publicationDate":"2024-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141314518","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

Digital light processing 3D printing of polymerizable ionic liquids towards carbon capture applications 面向碳捕获应用的可聚合离子液体数字光处理 3D 打印技术

IF 5.1 3区工程技术

Reactive & Functional Polymers Pub Date : 2024-06-08 DOI: 10.1016/j.reactfunctpolym.2024.105962

Ignazio Roppolo , Marcileia Zanatta , Giovanna Colucci , Roberto Scipione , Jamie M. Cameron , Graham N. Newton , Victor Sans , Annalisa Chiappone

{"title":"Digital light processing 3D printing of polymerizable ionic liquids towards carbon capture applications","authors":"Ignazio Roppolo , Marcileia Zanatta , Giovanna Colucci , Roberto Scipione , Jamie M. Cameron , Graham N. Newton , Victor Sans , Annalisa Chiappone","doi":"10.1016/j.reactfunctpolym.2024.105962","DOIUrl":"https://doi.org/10.1016/j.reactfunctpolym.2024.105962","url":null,"abstract":"<div>This study presents new 3D printable materials based on ad-hoc synthesized photocurable imidazolium ionic liquids (ILs) with bis(trifluoromethanesulfonyl)imide (NTf2)− as counterion and two different alkyl chain's structures at the cation, with enhanced CO2 capture properties. The molecular structure of the synthesized ILs was confirmed through NMR technique and a polymerization study was carried out, by means of photorheological tests and FT-IR analyses, on formulations containing a crosslinking monomer (PEGDA). The study confirmed the good reactivity of the formulations that makes them suitable for digital light processing (DLP) 3D printing technique. Simple membranes were then tested through high pressure CO2 uptake analysis to estimate their capture efficiency, comparing the results with the standard room temperature ionic liquid (RTIL) counterpart, and evidencing an increase of CO2 absorption regardless the pressure applied. At last, complex gyroid-like structures incorporating the synthesized ILs were successfully 3D printed, showing the remarkable ability of these materials to be processed with 3D printing technology while maintaining the great CO2 capture performances of ionic liquids. This preliminary work paves the way for the implementation of “ad-hoc” designs to create filters or devices to enhance the CO2 capture.</div>","PeriodicalId":20916,"journal":{"name":"Reactive & Functional Polymers","volume":null,"pages":null},"PeriodicalIF":5.1,"publicationDate":"2024-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1381514824001378/pdfft?md5=6ec6c3d67b473ee4d3d1e491d26ed624&pid=1-s2.0-S1381514824001378-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141313118","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}

引用次数: 0

Reactive organophosphorus retardant-enhanced sorbitol epoxy resins with highly thermal and flame-retardant performance 具有高耐热和阻燃性能的反应性有机磷阻燃剂增强型山梨醇环氧树脂

IF 5.1 3区工程技术

Reactive & Functional Polymers Pub Date : 2024-06-08 DOI: 10.1016/j.reactfunctpolym.2024.105974

Xinru Bai , Hao Guan , Zhiyong Li , Jingjing Meng , Kai Guo

{"title":"Reactive organophosphorus retardant-enhanced sorbitol epoxy resins with highly thermal and flame-retardant performance","authors":"Xinru Bai , Hao Guan , Zhiyong Li , Jingjing Meng , Kai Guo","doi":"10.1016/j.reactfunctpolym.2024.105974","DOIUrl":"https://doi.org/10.1016/j.reactfunctpolym.2024.105974","url":null,"abstract":"<div>As a low-cost sugar-based chemical, sorbitol has been less reported in recent years in the field of epoxy resins. In view of the low viscosity characteristics of its epoxy monomer, it is of great significance to prepare the advanced resin system via a solvent-free green curing process. As known, most of the existing flame-retardant networks contain organophosphorus flame retardants. To achieve excellent flame- retardant effect, a large amount of phosphorus was added to the resin matrices. As a result, apart from exacerbating the migration of organophosphorus, their thermal stability and phase transition temperature are further reduced, thus weakening the thermal properties of the material to a certain extent. In order to overcome those problems, we introduced ultra-low amounts of phosphorus to achieve efficient flame retardant into the sorbitol -based epoxy resin. It was found that the introduction of EP-DOPO in 0.55 P wt% amount could achieve a UL94-V0 grade flame retardant effect. Different from other phosphorus-containing flame retardants, reactive EP-DOPO favored an improvement in both thermal stability and phase transition temperature, meanwhile, it effectively avoids the phosphorus migration as well.</div>","PeriodicalId":20916,"journal":{"name":"Reactive & Functional Polymers","volume":null,"pages":null},"PeriodicalIF":5.1,"publicationDate":"2024-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1381514824001494/pdfft?md5=bc36d3b0e7e328d8cee42bd0880681cf&pid=1-s2.0-S1381514824001494-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141314523","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}

引用次数: 0

Reshapable bio-based thiol-ene vitrimers for nanoimprint lithography: Advanced covalent adaptability for tunable surface properties 用于纳米压印光刻技术的可重塑生物基硫醇烯玻璃rimers：先进的共价适应性实现可调表面特性

IF 5.1 3区工程技术

Reactive & Functional Polymers Pub Date : 2024-06-08 DOI: 10.1016/j.reactfunctpolym.2024.105972

Bernhard Sölle , David Reisinger , Sarah Heupl , Alexander Jelinek , Sandra Schlögl , Elisabeth Rossegger

{"title":"Reshapable bio-based thiol-ene vitrimers for nanoimprint lithography: Advanced covalent adaptability for tunable surface properties","authors":"Bernhard Sölle , David Reisinger , Sarah Heupl , Alexander Jelinek , Sandra Schlögl , Elisabeth Rossegger","doi":"10.1016/j.reactfunctpolym.2024.105972","DOIUrl":"https://doi.org/10.1016/j.reactfunctpolym.2024.105972","url":null,"abstract":"<div>Taking inspiration from natural surfaces known for their ability to adaptively remodel their shape, we fabricated stimuli-responsive microstructures by using UV-induced nanoimprint lithography. For this, a fully bio-based dynamic thiol-ene photopolymer was synthetized by the radical mediated addition of a trifunctional eugenol-based thiol (SH3E) crosslinker across an allylated linseed oil (ALELO). To catalyze the bond exchange reactions between the hydroxyl and ester groups within the network, a bio-based eugenol phosphate ester was introduced as a transesterification catalyst. Pure eugenol was further added as a reactive diluent to increase the number of hydroxyl groups and thus, accelerate the thermo-activated bond exchange reactions. Once cured by UV exposure, the dynamic photopolymer is thermally stable up to 250 °C and is able to relax 63% of the original stress within 62 min at 160 °C. Subsequently, films with micropillars, having an aspect ratio of 1:2.5 were prepared by using nanoimprint lithography. The macroscopic reflow capability of the dynamic network enabled a reorientation of the imprinted structures during a thermal reshaping step. The imprints were characterized by 2D/3D optical microscopy, μCT imaging and static water contact angle measurements. Based on the orientation of the micropillars, the water contact angle was varied between 118° and 95°, giving rise to a possible application in microfluidic devices.</div>","PeriodicalId":20916,"journal":{"name":"Reactive & Functional Polymers","volume":null,"pages":null},"PeriodicalIF":5.1,"publicationDate":"2024-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141322419","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

Hypercrosslinked porous polymer as catalyst for efficient biodiesel production 超交联多孔聚合物作为催化剂高效生产生物柴油

IF 5.1 3区工程技术

Reactive & Functional Polymers Pub Date : 2024-06-07 DOI: 10.1016/j.reactfunctpolym.2024.105964

S. Señorans , E. Rangel-Rangel , E.M. Maya , L. Díaz

{"title":"Hypercrosslinked porous polymer as catalyst for efficient biodiesel production","authors":"S. Señorans , E. Rangel-Rangel , E.M. Maya , L. Díaz","doi":"10.1016/j.reactfunctpolym.2024.105964","DOIUrl":"https://doi.org/10.1016/j.reactfunctpolym.2024.105964","url":null,"abstract":"<div>While porous organic polymers (POPs) are known for their unique properties, their application in basic biodiesel catalysis is innovative. This study introduces a novel catalyst, hypercrosslinked polymer (HCP-SB-K), synthesized through mechanochemical polymerization of styrene and benzaldehyde with a cross-linking agent and FeCl3, followed by calcination of the previous polymer impregnated with KNO3. The synthesis costs 3.328 euros per gram of catalyst, covering energy and reagent expenses. The catalyst's basic character is explored, demonstrating efficient transesterification with diverse feedstocks. Under optimal conditions, the HCP-SB-K catalyst exhibits exceptional catalytic activity, yielding 99.9% FAME (Fatty Acid Methyl Esters) at 60 °C, 2 h and 3% w/w catalyst. Investigation of free fatty acid (FFA) content highlights the catalyst's effectiveness with oils varying FFA levels: oils with acid value of 0.44 mgKOH goil−1 reached 92.1% FAME at 60 °C, 1 h and 3% w/w catalyst; oils with an acid value of 1.11 mgKOH goil−1, reached 75.9% FAME, under the same conditions. Catalyst leaching evaluation indicates no discharge of basic sites. The regenerated catalyst (impregnation with KNO3 and calcination, after the first use) exhibits a 98.2% FAME like the fresh catalyst. This suggests that HCP-SB-K can be regenerated without noticeable deactivation, emphasizing its industrial potential.</div>","PeriodicalId":20916,"journal":{"name":"Reactive & Functional Polymers","volume":null,"pages":null},"PeriodicalIF":5.1,"publicationDate":"2024-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1381514824001391/pdfft?md5=6ed1b6d7d8a9c70c45a83e4ffa54c4f9&pid=1-s2.0-S1381514824001391-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141294472","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}

引用次数: 0