Macromolecular Chemistry and Physics最新文献_第9页

IF 2.7 4区化学

Macromolecular Chemistry and Physics Pub Date : 2026-05-26

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IF 2.7 4区化学

Macromolecular Chemistry and Physics Pub Date : 2026-05-26

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IF 2.7 4区化学

Macromolecular Chemistry and Physics Pub Date : 2026-05-26

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Ion Transport Mechanism in Solid Polymer Electrolyte Consisting of Varied Amount of Sodium Tetrafluoroborate in Poly(methyl methacrylate) Matrix: Experimental Investigations and Evidences 由四氟硼酸钠组成的固体聚合物电解质在聚甲基丙烯酸甲酯基质中的离子传输机制：实验研究和证据

IF 2.7 4区化学

Macromolecular Chemistry and Physics Pub Date : 2026-05-26 DOI: 10.1002/macp.70274

Ipsita Priyadarshini, Vaishali Madhani, Kuldeep Mishra, Poonam Jain, Yogesh Kumar, Deepak Kumar

{"title":"Ion Transport Mechanism in Solid Polymer Electrolyte Consisting of Varied Amount of Sodium Tetrafluoroborate in Poly(methyl methacrylate) Matrix: Experimental Investigations and Evidences","authors":"Ipsita Priyadarshini, Vaishali Madhani, Kuldeep Mishra, Poonam Jain, Yogesh Kumar, Deepak Kumar","doi":"10.1002/macp.70274","DOIUrl":"https://doi.org/10.1002/macp.70274","url":null,"abstract":"<div>\u0000 \u0000 Solid polymer electrolyte (SPE) films were prepared by the solution casting method using poly(methyl methacrylate) (PMMA) as the host polymer and sodium tetrafluoroborate (NaBF4) as the salt, with salt concentrations of 5, 10, and 15 wt.%. The thermal and electrical properties of the resulting polymer–salt complexes were investigated using differential scanning calorimetry (DSC) and electrochemical impedance spectroscopy, respectively. Structural features and morphology were further analyzed through X-ray diffraction (XRD) and scanning electron microscopy (SEM). The optimized electrolyte, including a PMMA matrix with 15 wt.% NaBF4 salt, demonstrates a significant conductivity of 7.81 × 10−5 S cm−1 at room temperature. The real and imaginary components of dielectric permittivity have been examined to statistically analyze ion movements in the SPE. XRD and SEM analyses validated the amorphous characteristics of PMMA-NaBF4 solid polymer electrolyte films. The fourier-transformed infra-red spectroscopy study revealed structural modifications in the polymer due to interaction with sodium salt. DSC studies show that raising the concentration of NaBF4 leads to an increase in glass transition temperature. An ion-transport model illustrating the migration of Na+ within the PMMA matrix is proposed and systematically discussed. The SPE film, which has strong ionic conductivity, is a strong component for usage in Na+ conducting solid-state applications.\u0000 </div>","PeriodicalId":18054,"journal":{"name":"Macromolecular Chemistry and Physics","volume":"227 10","pages":""},"PeriodicalIF":2.7,"publicationDate":"2026-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148092246","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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IF 2.7 4区化学

Macromolecular Chemistry and Physics Pub Date : 2026-05-26

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Synthesis of N,N-Disubstituted Methacrylamides Having Hydroxy Group and Their Radical Homopolymerization Behavior 含羟基N，N-二取代甲基丙烯酰胺的合成及其自由基均聚行为

IF 2.7 4区化学

Macromolecular Chemistry and Physics Pub Date : 2026-05-26 DOI: 10.1002/macp.70277

Ryu Tada, Yoshio Furusho

{"title":"Synthesis of N,N-Disubstituted Methacrylamides Having Hydroxy Group and Their Radical Homopolymerization Behavior","authors":"Ryu Tada, Yoshio Furusho","doi":"10.1002/macp.70277","DOIUrl":"https://doi.org/10.1002/macp.70277","url":null,"abstract":"In this study, we have synthesized N,N-disubstituted methacrylamides having hydroxy groups, and we have investigated their radical homopolymerization behavior. N,N-Disubstituted methacrylamide bearing two hydroxyurethane groups 2 and one with two hydroxyethyl groups 3 undergo radical homopolymerization in bulk. On the other hand, N,N-dimethylmethacrylamide 1 and N,N-disubstituted methacrylamide with two urethane groups 4 do not homopolymerize in bulk. These results suggest that the radical homopolymerizability in bulk of 2 and 3 is attributed to the hydroxy groups on the N-substituents. With the aim of disclosing the relationship between the radical homopolymerizability and the conjugation between C═O and C═C groups, we have measured carbon-13 nuclear magnetic resonance (13C NMR) spectra of 1–4 in bulk state, because the chemical shift of the β-carbon of methacrylamide reflects the efficiency of the conjugation. The β-carbon chemical shifts of 1–4 were observed in descending order as 2 > 3 > 4 > 1, which was in good agreement with their radical polymerizability in bulk, i.e., 2 > 3 >> 4, 1.","PeriodicalId":18054,"journal":{"name":"Macromolecular Chemistry and Physics","volume":"227 10","pages":""},"PeriodicalIF":2.7,"publicationDate":"2026-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/macp.70277","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148092254","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Morphology Evolution of α Poly(Vinylidene Fluoride) Single Crystals in Its Blend with Poly(1,4-Butylene Adipate) 聚己二酸1,4-丁烯共混物中α聚偏氟乙烯单晶的形态演变

IF 2.7 4区化学

Macromolecular Chemistry and Physics Pub Date : 2026-05-26 DOI: 10.1002/macp.70271

Shuchang Wang, Zhiyuan Zhang, Huihui Li, Shouke Yan

{"title":"Morphology Evolution of α Poly(Vinylidene Fluoride) Single Crystals in Its Blend with Poly(1,4-Butylene Adipate)","authors":"Shuchang Wang, Zhiyuan Zhang, Huihui Li, Shouke Yan","doi":"10.1002/macp.70271","DOIUrl":"https://doi.org/10.1002/macp.70271","url":null,"abstract":"<div>\u0000 \u0000 The morphology evolution of α poly(vinylidene fluoride) (PVDF) crystals in blends with poly(1,4-butylene adipate) (PBA) from single crystals to spherulites has been investigated. The crystals in approximately 5 nm-thick films exhibit primarily two-dimensional growth, due to the constraint of film thickness. When the PBA content is high, the lozenge-shaped α-PVDF single crystals appear. As the PBA content decreases, the single crystals bend into C-shapes, and adjacent C-shaped crystals grow side-by-side to form X-shaped structures, eventually developing an eye-like morphology. Branches preferentially grow on the convex side, resulting in dense proliferation. When the film thickness is increased to about 25 nm at a PVDF/PBA ratio of 20/80, in addition to branching within film surface, pronounced overgrowth on the crystal surface become visible, with growth displaying a certain degree of ordered alignment perpendicular to the b-axis. As the PBA content decreases, the overgrowth on the parent lamellae increases, exhibiting a more order arrangement and twisting. At a PVDF/PBA ratio of 70/30, a significant number of lamellae adopt an edge-on alignment. Further increasing the film thickness can result in spherulites with banded structures. Through this study, we have gained a clear understanding of the development process of α-PVDF, from single crystals to spherulites.\u0000 </div>","PeriodicalId":18054,"journal":{"name":"Macromolecular Chemistry and Physics","volume":"227 10","pages":""},"PeriodicalIF":2.7,"publicationDate":"2026-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148093108","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Design of a New LCST Copolymer Based on Hydrogen Bonding Regulation 基于氢键调节的新型lst共聚物的设计

IF 2.7 4区化学

Macromolecular Chemistry and Physics Pub Date : 2026-05-26 DOI: 10.1002/macp.70276

Wei Zhang, Qiurui Lin, Yanling Liu, Xinyue Zhao, Xinyu Ma, Xianru He

{"title":"Design of a New LCST Copolymer Based on Hydrogen Bonding Regulation","authors":"Wei Zhang, Qiurui Lin, Yanling Liu, Xinyue Zhao, Xinyu Ma, Xianru He","doi":"10.1002/macp.70276","DOIUrl":"https://doi.org/10.1002/macp.70276","url":null,"abstract":"<div>\u0000 \u0000 Hydrogen bonding is one of the key factors determining polymer thermoresponsiveness. For instance, in Upper Critical Solution Temperature (UCST) poly(acrylamide-co-acrylonitrile) (P(AAm-co-AN)) aqueous solution, hydrogen bonding between AAm units is the primary driving force for the UCST transition. If the hydrogen atoms on the amide group are substituted, the absence of hydrogen donors may influence the thermoresponsive behavior and could even induce a shift from Upper Critical Solution Temperature to Lower Critical Solution Temperature (LCST). In this work, poly(N,N-dimethylacrylamide-co-acrylonitrile) (P(DMAA-co-AN)) was synthesized. Because the copolymer contains only hydrogen acceptors, hydrogen bonding cannot form between polymer structural units in aqueous solution. Thus, only polymer–water hydrogen bonding is formed. P(DMAA-co-AN) exhibits typical LCST-type thermoresponsive behavior, which confirms the proposed hypothesis. The copolymers exhibited cloud points in the ambient temperature range of 19°C−68°C by varying the composition ratio of DMAA and AN. P(DMAA-co-AN) exhibits thermoresponsive, salt- and pH-responsive behaviors, which provide potential applications in the fields of biomedicine and petrochemical engineering. In this work, hydrogen bonding interactions were regulated by simply replacing hydrogen atoms on the functional groups, thus inducing changes in the thermoresponsiveness of the copolymer. It offers valuable insights for the design of novel thermoresponsive polymers.\u0000 </div>","PeriodicalId":18054,"journal":{"name":"Macromolecular Chemistry and Physics","volume":"227 10","pages":""},"PeriodicalIF":2.7,"publicationDate":"2026-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148092236","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Issue Information: Macromol. Chem. Phys. 10/2026 发布信息：Macromol。化学。理论物理的10/2026

IF 2.7 4区化学

Macromolecular Chemistry and Physics Pub Date : 2026-05-26 DOI: 10.1002/macp.70279

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Exploring Structure-Property Relationship on a Nanoscale for Tailoring Films of Amphiphilic Polymer Co-Networks 在纳米尺度上探索两亲性聚合物共网络裁剪薄膜的结构-性能关系

IF 2.7 4区化学

Macromolecular Chemistry and Physics Pub Date : 2026-05-26 DOI: 10.1002/macp.202500500

Kevin Hagmann, Carina Schneider, Stephanie Ihmann, Frank Böhme, Regine von Klitzing

{"title":"Exploring Structure-Property Relationship on a Nanoscale for Tailoring Films of Amphiphilic Polymer Co-Networks","authors":"Kevin Hagmann, Carina Schneider, Stephanie Ihmann, Frank Böhme, Regine von Klitzing","doi":"10.1002/macp.202500500","DOIUrl":"https://doi.org/10.1002/macp.202500500","url":null,"abstract":"Amphiphilic polymer co-networks (APCNs) provide a large toolbox for tuning coatings important for applications such as bio-interfaces. Therefore, we investigate the influence of network composition and environmental conditions on the structure and mechanical and adhesive properties of thin films composed of hydrophobic tetra-PCL and hydrophilic tetra-PEG stars of varying sizes. State-of-the-art atomic force microscopy (AFM) techniques, including phase imaging, fast quantitative static indentation, and dynamic indentation, provide insights into the structure-property-relationship on various length scales. PEG-rich networks exhibit amorphous morphologies with spherical nanodomains and elastic moduli of a few MPa, while PCL-rich networks form semicrystalline cylindrical arrangements with moduli up to several hundred MPa in water. Temperature-dependent measurements in water revealed a strong hysteresis of elastic moduli while shifting the melting/crystallization transitions or preventing crystallization in PEG-rich networks. All networks displayed predominantly elastic behavior. Co-networks in non-selective solvent conditions are overall softer, less adhesive, and structurally more homogeneous. These results establish a predictable correlation of network composition, physical and chemical environment, structure, and properties, which makes them suitable for a rational design of amphiphilic systems for various applications.","PeriodicalId":18054,"journal":{"name":"Macromolecular Chemistry and Physics","volume":"227 10","pages":""},"PeriodicalIF":2.7,"publicationDate":"2026-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/macp.202500500","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148093112","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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