Journal of Applied Polymer Science最新文献

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Curing Mechanism and Properties Epoxy Resins With Main-Chain Polyimidazolium Ionic Liquids
IF 2.7 3区 化学
Journal of Applied Polymer Science Pub Date : 2025-01-10 DOI: 10.1002/app.56639
Jingshi Liang, Bo Liu, Ye Wang, Delai Jiao, Xiaolin Shi, Zhiming Pan, Chunling Zhang
{"title":"Curing Mechanism and Properties Epoxy Resins With Main-Chain Polyimidazolium Ionic Liquids","authors":"Jingshi Liang,&nbsp;Bo Liu,&nbsp;Ye Wang,&nbsp;Delai Jiao,&nbsp;Xiaolin Shi,&nbsp;Zhiming Pan,&nbsp;Chunling Zhang","doi":"10.1002/app.56639","DOIUrl":"https://doi.org/10.1002/app.56639","url":null,"abstract":"<div>\u0000 \u0000 <p>Ionic liquids have aroused considerable attention in the fields of polymer and materials science due to their designability and distinctive qualities. Epoxy resin (EP) with antimicrobial and stain-resistant properties is important for the service life of the material and for eliminating potential health hazards. In this study, a series of main-chain polyimidazolium ionic liquids (PIMILs) differing in the alkyl chain length of cation sizes (propyl, butyl, hexyl, octyl, decyl, dodecyl, 3,6-dioxaoctyl, and 4,7,10-trioxatridecyl) were synthesized by the Debus–Radziszewski reaction, and used as curing agents for EPs. The results of the curing conditions of their corresponding EPs revealed the regularity in the curing conditions dependent mainly on alkyl chain length. Meanwhile, the influence of the chloride anion and cation size on thermal stability, the glass transition temperature (<i>T</i>\u0000 <sub>g</sub>), and thermomechanical properties of the epoxy composites were discussed, Finally, the water contact angles of thermosets ranged from 78.1° to 104.5°, and the thermosets could effectively kill multiple strains of bacteria and remove the biofilm.</p>\u0000 </div>","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"142 12","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143404401","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Waste to Wealth: Cenospheres as Promising Thermal Insulation Coating Material for Protection Against Impinging Hot Air
IF 2.7 3区 化学
Journal of Applied Polymer Science Pub Date : 2025-01-10 DOI: 10.1002/app.56605
Ramachandrappa Vara Lakshmi, Parthasarathi Bera, Sukumar Jaikesh, Venkatakrishnaiah Praveen Kumar, Govindappa Srinivas, Singanahalli Thippareddy Aruna, Harish Chandra Barshilia
{"title":"Waste to Wealth: Cenospheres as Promising Thermal Insulation Coating Material for Protection Against Impinging Hot Air","authors":"Ramachandrappa Vara Lakshmi,&nbsp;Parthasarathi Bera,&nbsp;Sukumar Jaikesh,&nbsp;Venkatakrishnaiah Praveen Kumar,&nbsp;Govindappa Srinivas,&nbsp;Singanahalli Thippareddy Aruna,&nbsp;Harish Chandra Barshilia","doi":"10.1002/app.56605","DOIUrl":"https://doi.org/10.1002/app.56605","url":null,"abstract":"<div>\u0000 \u0000 <p>Saving thermal energy in a sustainable way is one of the important aspects of global energy conservation. Therefore, conservation of thermal energy by different means has been a topic of applied research in the last several years. In this direction, low-density, low-thickness, cost-effective, and easily scalable thermal insulation paint coating containing power plant waste cenosphere has been developed in the present work. Cenospheres having low thermal conductivity are used as fillers in an epoxy matrix. The coating has been developed using simple spray coating method. Morphology, phase, and particle size of cenospheres have been characterized by field emission scanning electron microscopy, X-ray diffractometry, and particle size analysis, respectively. Cenospheres show spherical morphology with mainly quartz and mullite phases. Chemical bonding and surface nature of the as-prepared coating have been evaluated by Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy, respectively. The coating contains C–O, C–O–C, C–C, C=C, –CH<sub>3</sub>, C–N, N–H, –OH, Al–O–Si, Al–O–Al bonds, as well as Si<sup>3+</sup>, Si<sup>4+</sup>, C–O, C=O, O–C=O, Ca<sup>2+</sup>, Na<sup>+</sup>, and Al<sup>3+</sup> species on the surface of the coating. The thermal conductivity of epoxy-cenospheres coating is in the range of 0.24 to 0.35 W m<sup>−1</sup> K<sup>−1</sup> for temperatures of 20 °C–200 °C. The thermal insulation property of the coating has been assessed using an indigenously built setup and the coating shows a temperature drop of 20 °C–27 °C, when the coating has been subjected to 200 °C hot air exposure for 5 to 20 min.</p>\u0000 </div>","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"142 11","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143362318","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Hydroxyethylcellulose and In Situ Formed Crosslinked Poly(Acrylamide-Co-2-Acrylamido-2-Methylpropanesulfonic Acid) Based Calcium Ion Embedded Conductive Composite Hydrogels for Flexible Electronic Devices
IF 2.7 3区 化学
Journal of Applied Polymer Science Pub Date : 2025-01-09 DOI: 10.1002/app.56632
Lingling Meng, En Liu, Weihao Li, Shijie Ding, Da Liu
{"title":"Hydroxyethylcellulose and In Situ Formed Crosslinked Poly(Acrylamide-Co-2-Acrylamido-2-Methylpropanesulfonic Acid) Based Calcium Ion Embedded Conductive Composite Hydrogels for Flexible Electronic Devices","authors":"Lingling Meng,&nbsp;En Liu,&nbsp;Weihao Li,&nbsp;Shijie Ding,&nbsp;Da Liu","doi":"10.1002/app.56632","DOIUrl":"https://doi.org/10.1002/app.56632","url":null,"abstract":"<div>\u0000 \u0000 <p>Ionic conductive hydrogels (ICHs) have received much attention as ideal candidates for flexible electronic devices. However, conventional ICHs have not been widely used due to their inability to simultaneously possess high toughness and high ionic conductivity. Here, an interpenetrating double network hydrogel designated as HPPC was prepared by photocopolymerizing AM, AMPS, and MBA in the presence of HEC and CaCl<sub>2</sub> using irgacure as a photoinitiator. Hydrogen bonding between the HEC and P(AM-AMPS) formed the interpenetrating network structure. Calcium ions functioned as ionic cross-linking agents and conductive ions, effectively dissipating energy. A tensile strength of 0.101 MPa, 648% tensile strain, and satisfactory ionic conductivity were exhibited. In addition, the flexible strain sensor based on HEC/P(AM-AMPS)/CaCl<sub>2</sub> hydrogel has excellent sensitivity and can accurately record the movement status of different body parts of the human body. Notably, the specific capacitance of HEC/P(AM-AMPS)/CaCl<sub>2</sub>-CS can reach 30.5 F g<sup>−1</sup> at a current density of 1 A g<sup>−1</sup>. Overall, this ion-conductive hydrogel has potential for flexible electronics.</p>\u0000 </div>","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"142 12","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143404519","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Synthesis and Characterization of Silver Nanoparticles-Filled and Polyvinyl Alcohol-Grafted Copolymer Composites for Column Adsorption and Photochemical Degradation of p-Nitrophenol
IF 2.7 3区 化学
Journal of Applied Polymer Science Pub Date : 2025-01-08 DOI: 10.1002/app.56655
Pampa Debnath, Samit Kumar Ray
{"title":"Synthesis and Characterization of Silver Nanoparticles-Filled and Polyvinyl Alcohol-Grafted Copolymer Composites for Column Adsorption and Photochemical Degradation of p-Nitrophenol","authors":"Pampa Debnath,&nbsp;Samit Kumar Ray","doi":"10.1002/app.56655","DOIUrl":"https://doi.org/10.1002/app.56655","url":null,"abstract":"<div>\u0000 \u0000 <p>Polyvinyl alcohol (PVA), sodium polyacrylate, and polyacrylonitrile are very effective for stabilizing and controlling the size of nanoparticles. Thus, PVA was grafted to the copolymer of acrylonitrile (AN) and acrylic acid/sodium acrylate (AA/NaAA) using N,N′-methylenebisacrylamide comonomer–crosslinker (MBA). Silver nanoparticles (AgNPs) were synthesized in situ in the polymerization mixtures by reduction of AgNO<sub>3</sub> with ascorbic acid. These nanocomposites were characterized and used for the removal and photocatalytic degradation of p-nitrophenol (PNP) from water. Based on the Box–Behnken design of the response surface methodology, the nanocomposite prepared with the AN:NaAA/AA molar ratio/MBA wt.%/PVA wt.% of 5:1/0.5/2 and impregnated with AgNPs of 18–30 nm average size (noted as PVACP5Ag) showed the optimized results. PVACP5Ag showed the equilibrium batch adsorption (q<sub>e</sub>, mg/g) of 240.93 from 50 mg/L PNP in water and a q<sub>e</sub> of 36.2 in fixed bed adsorption at a feed inlet concentration (mgL<sup>−1</sup>)/inflow rate (mLmin<sup>−1</sup>)/bed height (mm) of 50/30/30. The same composite showed a degradation of 96% after 7 min of exposure to sunlight in the presence of NaBH<sub>4</sub> with a first-order rate constant of 0.3 min<sup>−1</sup> and 90.3% degradation after 110 min of exposure with a first-order rate constant of 0.01 min<sup>−1</sup> without any reducing agent.</p>\u0000 </div>","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"142 13","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143466196","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
A Gallic Acid–Acrylic Acid Graft Copolymer With High Oxygen Absorption Properties
IF 2.7 3区 化学
Journal of Applied Polymer Science Pub Date : 2025-01-06 DOI: 10.1002/app.56641
Xinyue Guo, Yali Tang, Lixin Lu, Xiaolin Qiu, Liao Pan
{"title":"A Gallic Acid–Acrylic Acid Graft Copolymer With High Oxygen Absorption Properties","authors":"Xinyue Guo,&nbsp;Yali Tang,&nbsp;Lixin Lu,&nbsp;Xiaolin Qiu,&nbsp;Liao Pan","doi":"10.1002/app.56641","DOIUrl":"https://doi.org/10.1002/app.56641","url":null,"abstract":"<div>\u0000 \u0000 <p>Gallic acid (GA), a potential deoxidizer utilized in food packaging, exhibits a robust oxygen-absorbing effect, yet suffers from poor stability. When integrated into polymers, its oxygen-absorbing properties undergo a significant decline. This research is focused on graft copolymerizing GA with acrylic acid (AA) to create a water-absorbing resin (GA-PAA) that boasts high-oxygen-absorbing capabilities. This minimizes GA loss during production and eliminates the need for an alkaline environment for oxygen absorption. The single-variable method is being employed to investigate the impact of synthesis conditions on GA-PAA's performance. Initial findings indicate optimal performance with synthesis mass ratios of 7% GA, 0.6% initiator, and 0.2% cross-linking agent, along with an 80% degree of neutralization and a reaction temperature of 80°C. The GA-PAA is characterized as highly absorbent for both oxygen and water, confirming the successful grafting of GA. Well-synthesized resins exhibit a water absorption capacity of 452.2 g/g and an oxygen scavenging of 105.3 mL/g before hydration. Posthydration, oxygen scavenging displays a pattern of an initial sudden decrease, followed by a gradual increase, dependent on the amount of water added. These findings suggest that grafting AA with GA enhances GA's stability during synthesis, enabling the production of efficient oxygen-scavenging materials.</p>\u0000 </div>","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"142 12","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143404408","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Dual-Mode Fluorescence Sensing of Multiple Oxidizing Analytes by Selective Oxidation of Poly(N-Phenyl Anthranilic Acid-Co-o-Phenylenediamine) Random Copolymers
IF 2.7 3区 化学
Journal of Applied Polymer Science Pub Date : 2025-01-06 DOI: 10.1002/app.56676
K. Rohini Das, I. Anjana, M. Jinish Antony
{"title":"Dual-Mode Fluorescence Sensing of Multiple Oxidizing Analytes by Selective Oxidation of Poly(N-Phenyl Anthranilic Acid-Co-o-Phenylenediamine) Random Copolymers","authors":"K. Rohini Das,&nbsp;I. Anjana,&nbsp;M. Jinish Antony","doi":"10.1002/app.56676","DOIUrl":"https://doi.org/10.1002/app.56676","url":null,"abstract":"<div>\u0000 \u0000 <p>We report a dual-mode fluorescence sensing of multi-analytes like silver and permanganate ions by adopting a selective oxidation strategy in poly(N-phenyl anthranilic acid<i>-co-</i>o-phenylenediamine) copolymer. The P(NPA-<i>co</i>-OPD) copolymers were synthesized by in situ oxidative chemical polymerization of N-phenyl anthranilic acid (NPA) and o-phenylenediamine (OPD) comonomers using ferric chloride as oxidizing agent. Proton (<sup>1</sup>H) and carbon (<sup>13</sup>C) nuclear magnetic resonance spectra and Fourier transform infrared spectra revealed the higher reactivity of NPA compared to OPD in P(NPA-<i>co</i>-OPD) copolymers. Monomer reactivity ratios calculated from the Fineman–Ross method also indicated the higher reactivity of NPA monomer in copolymerization. Powder X-ray diffractograms and differential scanning calorimetry (DSC) thermograms revealed the development of crystallinity in copolymers. Field emission scanning electron microscopic images (FE-SEM) and high-resolution transmission electron microscopic images (HR-TEM) revealed the morphological transformation of semi-micro-spherical-shaped poly-N-phenyl anthranilic acid and micro-rod-shaped poly-o-phenylenediamine (POPD) into micro-blocks/microrod-shaped P(NPA-<i>co</i>-OPD) copolymers. Poly-o-phenylenediamine (POPD) has a yellow emission, and poly-N-phenyl anthranilic acid (PNPA) has a blue emission in the neutralized medium. The blue emission was dominated in copolymers due to the higher PNPA fragments than the POPD fragments in the copolymer chain, except for P(NPA-<i>co</i>-OPD) 10:90, which has yellow emission due to the dominant OPD fragments in the copolymer. The fluorescence properties of copolymer P(NPA-<i>co</i>-OPD) 10:90 were selectively tuned from yellow to blue by adding AgNO<sub>3</sub>, indicating the semi-oxidation of POPD fragments in the copolymer and, subsequently, blue to colorless by adding acidified KMnO<sub>4</sub>, indicating complete oxidation of both POPD and PNPA fragments in the copolymer. The selective fluorescence response suggests the ability of the copolymer to distinguish between mild or strong oxidizing agents via selective oxidation.</p>\u0000 </div>","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"142 13","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143466152","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Facile Strategy to Construct Eugenol-Derived Bifunctionality Epoxy Monomer for Preparation of Thermosetting Resin System With Desired Performances 构建丁香酚衍生双官能团环氧单体以制备具有所需性能的热固性树脂体系的简便策略
IF 2.7 3区 化学
Journal of Applied Polymer Science Pub Date : 2025-01-06 DOI: 10.1002/app.56657
Shujun Zhao, Yuanjian Li, Xuebin Lian, Jiehao Qu, Shengjiong Yin, Xiangdong Liu
{"title":"Facile Strategy to Construct Eugenol-Derived Bifunctionality Epoxy Monomer for Preparation of Thermosetting Resin System With Desired Performances","authors":"Shujun Zhao,&nbsp;Yuanjian Li,&nbsp;Xuebin Lian,&nbsp;Jiehao Qu,&nbsp;Shengjiong Yin,&nbsp;Xiangdong Liu","doi":"10.1002/app.56657","DOIUrl":"https://doi.org/10.1002/app.56657","url":null,"abstract":"<div>\u0000 \u0000 <p>Designing and preparing bio-based epoxy monomers to substitute hazardous and nonrenewable bisphenol A (BPA)-type epoxide are important for the development of new epoxy resins under the concept of healthy and sustainable concept. In this work, a “green” bifunctionality epoxy monomer derived from eugenol (EGE-EP) was fabricated by epoxidation functionalization of unsaturated double bond as well as using epichlorohydrin to epoxidize phenolic hydroxyl group. The effects of different hardeners on the properties of EGE-EP were analyzed, and the E51 epoxy cured with the same hardeners was employed as a reference. The results indicate that the EGE-EP/hardeners present desired curing behavior, mechanical performances, and thermal stability which are comparable to the commercial E51/hardeners epoxy resin. Most importantly, all EP/hardeners samples exhibit a lower onset temperature compared to E51/hardeners systems reflecting a faster curing properties of the EGE-EP/hardeners mixtures. Meanwhile, an obvious improvement of char yield is found in EGE-EP/hardeners in contrast to E51/hardeners thus possessing potential for flame retardancy applications. This study proposes an innovative path to prepare bio-based epoxy monomers as an alternative to BPA-type epoxide, which is of significance for eco-friendly epoxy resins and high-value utilization of biomass.</p>\u0000 </div>","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"142 13","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143466153","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Chitosan/Graphene Oxide/Ag Nanocomposites Loaded in Polyvinyl Alcohol Films as Biodegradable, UV-Blocking, and Antibacterial Film for Fruit Packaging
IF 2.7 3区 化学
Journal of Applied Polymer Science Pub Date : 2025-01-06 DOI: 10.1002/app.56677
Nhung Thi Tran, Giang Tien Nguyen, Tam Minh Le, Anh Tuan Nguyen Huynh
{"title":"Chitosan/Graphene Oxide/Ag Nanocomposites Loaded in Polyvinyl Alcohol Films as Biodegradable, UV-Blocking, and Antibacterial Film for Fruit Packaging","authors":"Nhung Thi Tran,&nbsp;Giang Tien Nguyen,&nbsp;Tam Minh Le,&nbsp;Anh Tuan Nguyen Huynh","doi":"10.1002/app.56677","DOIUrl":"https://doi.org/10.1002/app.56677","url":null,"abstract":"<div>\u0000 \u0000 <p>The polyvinyl alcohol/chitosan/graphene oxide/Ag composite films are facilely fabricated as active multifunctional food packaging materials. The AgNPs of less than 10 nm immobilized onto CS/GO matrices are in situ synthesized by using NaBH<sub>4</sub> as a reductant. The effect of different amounts of Ag and CS:GO weight ratios on the mechanical properties, water resistance, optical properties, thermal stability, and antibacterial activities of various films are systematically investigated. The composite film obtained at 0.5 wt% AgNP loading and a CS:GO ratio of 5:1 demonstrates significantly improved tensile strength (33.07 MPa, 1.7 times higher), reduced water swelling (2.4 times lower), increased contact angle (71.08° vs. 53.54°), and enhanced thermal stability compared to the neat PVA film. Additionally, these composite films exhibit excellent bacterial killing and inhibition activities against \u0000 <i>Escherichia coli</i>\u0000 and \u0000 <i>Staphylococcus aureus</i>\u0000 , with zones of inhibition of 10.09 nm and 12.66 mm, respectively. Interestingly, no viable bacteria were found with the film-forming dispersion at 10 μg/mL. Furthermore, the fabricated films exhibit excellent UV-blocking effects, sufficiently protecting exposed green plums from UV damage for 10 days. The membrane-packed acerola fruits also demonstrate better freshness, slower ripening rate, and no signs of microbial growth as compared to those packed with commercial polyethylene film.</p>\u0000 </div>","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"142 13","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143466187","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Photothermal-Responsive Electrospun Fibrous Membrane for Flux Tunable Oil-In-Water Emulsion Separation
IF 2.7 3区 化学
Journal of Applied Polymer Science Pub Date : 2025-01-05 DOI: 10.1002/app.56635
Yixin Zhang, Shuang Chen, Wenxuan Cao, Jichao Zhang, Lan Peng, Haifeng Lu, Wenjing Ma, Ranhua Xiong, Chaobo Huang
{"title":"Photothermal-Responsive Electrospun Fibrous Membrane for Flux Tunable Oil-In-Water Emulsion Separation","authors":"Yixin Zhang,&nbsp;Shuang Chen,&nbsp;Wenxuan Cao,&nbsp;Jichao Zhang,&nbsp;Lan Peng,&nbsp;Haifeng Lu,&nbsp;Wenjing Ma,&nbsp;Ranhua Xiong,&nbsp;Chaobo Huang","doi":"10.1002/app.56635","DOIUrl":"https://doi.org/10.1002/app.56635","url":null,"abstract":"<div>\u0000 \u0000 <p>Oil–water separation has attracted considerable concern for the increasing discharge of industrial oily wastewater and frequency of oil spill accidents. Conventional oil–water separation methods are not effective in treating emulsified oil. In this study, photothermal-responsive polyurethane (PU)/poly(methyl methacrylate)-block-poly(N-isopropylacrylamide) (PMMA-b-PNIPAM) fibrous membranes (denoted as PTFMs) with core-shell structure are fabricated. The as-prepared membranes exhibited photothermal-modulable water wettability. Significantly, the wettability and permeation flux can be tuned by light illumination during the oil–water separation process because of the incorporation of light-responsive Ag nanoparticles and thermal-responsive copolymers. In addition, the as-prepared membrane exhibited recyclability even for forty separation cycles. It was concluded that the photothermal-responsive composite fibrous membranes provide great potential for the development of remotely operated water treatment devices.</p>\u0000 </div>","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"142 12","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-01-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143404338","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Evolution of Morphological, Electrical, Thermal, and Mechanical Properties of Elastomer Nanocomposites With Different Sizes of MWCNTs
IF 2.7 3区 化学
Journal of Applied Polymer Science Pub Date : 2025-01-04 DOI: 10.1002/app.56628
Tuba Evgin, Matej Micusik, Halil Doğacan Koca, Hamed Peidayesh, Alpaslan Turgut, Miroslav Slouf, Ivan Chodak
{"title":"Evolution of Morphological, Electrical, Thermal, and Mechanical Properties of Elastomer Nanocomposites With Different Sizes of MWCNTs","authors":"Tuba Evgin,&nbsp;Matej Micusik,&nbsp;Halil Doğacan Koca,&nbsp;Hamed Peidayesh,&nbsp;Alpaslan Turgut,&nbsp;Miroslav Slouf,&nbsp;Ivan Chodak","doi":"10.1002/app.56628","DOIUrl":"https://doi.org/10.1002/app.56628","url":null,"abstract":"<div>\u0000 \u0000 <p>Ethylene-propylene-diene-monomer (EPDM) nanocomposites with three various types of multiwall carbon nanotubes (MWCNTs) were fabricated to investigate the size effect of MWCNTs on the morphological, electrical, thermal, mechanical, and viscoelastic properties, as well as swelling ratio and crosslinking density. MWCNTs enhance electrical, thermal, mechanical, and viscoelastic properties regardless of MWCNT size. The MWCNT size is vital in determining percolation thresholds and thermal conductivity; however, it considerably influences the electrical conductivity in only the percolation threshold region (2–10 phr). In addition, the diameter of MWCNTs is a more regulating factor for nanocomposites' electrical properties than length. The EPDM nanocomposites, including MWCNTs with a longer length, low diameter, and higher specific surface area (SSA), show a better thermal conductivity enhancement (95%) due to forming more easily thermally conductive networks. The size of MWCNTs is a negligible key factor for mechanical and viscoelastic properties. With increasing MWCNT contents, the swelling ratio decreases, and crosslinking density increases. MWCNTs with lower diameter, length, and higher SSA exhibit less enhancement in all mentioned properties of EPDM-based nanocomposites due to worse dispersion in the matrix.</p>\u0000 </div>","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"142 12","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143404560","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
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