Macromolecular Chemistry and Physics最新文献

Issue Information: Macromol. Chem. Phys. 19/2025 发布信息：Macromol。化学。理论物理的19/2025

IF 2.7 4区化学

Macromolecular Chemistry and Physics Pub Date : 2025-10-06 DOI: 10.1002/macp.70139

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Issue Information: Macromol. Chem. Phys. 18/2025 发布信息：Macromol。化学。理论物理的18/2025

IF 2.7 4区化学

Macromolecular Chemistry and Physics Pub Date : 2025-09-19 DOI: 10.1002/macp.70131

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Metal-Free Synthesis of π-Conjugated Polyisoxazoles by 1,3-Dipolar Cycloaddition of Divanillin-Based Nitrile N-Oxides and Dialkynes 二苯胺基腈n-氧化物和二炔的1,3-偶极环加成法无金属合成π共轭多异恶唑

IF 2.7 4区化学

Macromolecular Chemistry and Physics Pub Date : 2025-09-19 DOI: 10.1002/macp.70111

Hiromitsu Sogawa, Yuki Kakita, Maki Kanda, Fumio Sanda

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Issue Information: Macromol. Chem. Phys. 17/2025 发布信息：Macromol。化学。理论物理的17/2025

IF 2.7 4区化学

Macromolecular Chemistry and Physics Pub Date : 2025-09-05 DOI: 10.1002/macp.70110

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Research Progress and Application Prospects of Reactive Flame-Retardant Polyamide 反应性阻燃聚酰胺的研究进展及应用前景

IF 2.7 4区化学

Macromolecular Chemistry and Physics Pub Date : 2025-09-02 DOI: 10.1002/macp.202400499

Haiying Lu, Minghui Wu, Kejian Yang, Rui Chen, Zhaocong He, Xudong Chen

{"title":"Research Progress and Application Prospects of Reactive Flame-Retardant Polyamide","authors":"Haiying Lu, Minghui Wu, Kejian Yang, Rui Chen, Zhaocong He, Xudong Chen","doi":"10.1002/macp.202400499","DOIUrl":"https://doi.org/10.1002/macp.202400499","url":null,"abstract":"<div>\u0000 \u0000 <p>Reactive flame-retardant polyamide addresses key limitations of additive types, such as low efficiency, dispersion issues, and compromised mechanical properties, providing superior mechanical strength, toughness, and flame retardancy for demanding applications like military textiles, electric vehicle components, and smart grids. Primary systems include phosphorus-based (promoting char formation), nitrogen-based (releasing inert gases and forming char), and silicon-based (forming a protective layer) flame retardancy. Synergistic combinations, such as nitrogen-phosphorus for enhanced gas-phase effects or nitrogen-silicon for reinforced condensed-phase char, offer performance benefits. Current challenges include insufficient flame-retardant heat resistance for polyamide polymerization conditions, low active element content necessitating high loadings that disrupt polymer structure, and limited inherent char-forming varieties with anti-dripping properties. Future development focuses on designing molecular structures to achieve heat-resistant reactive flame retardants with minimal impact on crystallization, enabling high molecular weight resins suitable for high-speed fiber spinning. Concurrently, innovation in flame retardant mechanisms aims to combine flame retardant and polymer chain design, creating intrinsic anti-dripping char-forming polyamide materials that eliminate the wick effect during modification and enable additive-free, cost-effective composites. Renewable bio-based flame-retardant polyamides also present significant potential due to their combined flame retardancy, environmental benefits, and ability to meet performance and sustainability requirements.</p>\u0000 </div>","PeriodicalId":18054,"journal":{"name":"Macromolecular Chemistry and Physics","volume":"226 18","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145100956","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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Multifunctional Benzoxazine Resins Containing Biphenyl Structures: Synthesis, Characterization and Properties 含联苯结构的多功能苯并恶嗪树脂：合成、表征及性能

IF 2.7 4区化学

Macromolecular Chemistry and Physics Pub Date : 2025-09-01 DOI: 10.1002/macp.202500175

Yiqing Xia, Junlong Zhu, Yuping Sheng, Wilfred Emori, Renfei Zhang, Yuntao Zeng, Zhenggang Zhou, Chenghong Fu

{"title":"Multifunctional Benzoxazine Resins Containing Biphenyl Structures: Synthesis, Characterization and Properties","authors":"Yiqing Xia, Junlong Zhu, Yuping Sheng, Wilfred Emori, Renfei Zhang, Yuntao Zeng, Zhenggang Zhou, Chenghong Fu","doi":"10.1002/macp.202500175","DOIUrl":"https://doi.org/10.1002/macp.202500175","url":null,"abstract":"<div>\u0000 \u0000 <p>In order to enhance the thermal stability and dielectric properties of benzoxazine resins, four biphenyl-containing polyaromatic amine-type benzoxazine resins (BOZ-P, BOZ-B, BOZ-A and BOZ-T) were prepared by molecular design in this paper, and the effects of the biphenyl structure and different substituents on the properties of benzoxazine resins were investigated. The results showed that the introduction of biphenyl structure effectively enhanced the thermal stability and dielectric properties of benzoxazine resins. Among them, the 5% thermal decomposition temperature of P(BOZ-P) was 411.4°C, the residual carbon rate was 58.6% at 800°C, the glass transition temperature was 194.5°C, the dielectric constant was 2.808 at 10 MHz, and the surface free energy was 39.95 mJ·m<sup>−2</sup>. P(BOZ-T), which was introduced with trifluoromethyl group, showed the best low dielectric properties, and the dielectric constant and dielectric loss at MHz are 2.698 and 0.00758, respectively.</p>\u0000 </div>","PeriodicalId":18054,"journal":{"name":"Macromolecular Chemistry and Physics","volume":"226 18","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145100838","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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Front Cover: Macromol. Chem. Phys. 16/2025 封面：Macromol。化学。理论物理的16/2025

IF 2.7 4区化学

Macromolecular Chemistry and Physics Pub Date : 2025-08-21 DOI: 10.1002/macp.70096

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Issue Information: Macromol. Chem. Phys. 16/2025 发布信息：Macromol。化学。理论物理的16/2025

IF 2.7 4区化学

Macromolecular Chemistry and Physics Pub Date : 2025-08-21 DOI: 10.1002/macp.70097

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Front Cover: Macromol. Chem. Phys. 15/2025 封面：Macromol。化学。理论物理的15/2025

IF 2.7 4区化学

Macromolecular Chemistry and Physics Pub Date : 2025-08-04 DOI: 10.1002/macp.70082

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Quasiliving Cationic Polymerization of Isobutylene with FeCl3×iPrOH as Co-Initiator in Toluene: A Step Toward Greener Process 以FeCl3×iPrOH为共引发剂的异丁烯在甲苯中的准活阳离子聚合：迈向绿色工艺的一步

IF 2.7 4区化学

Macromolecular Chemistry and Physics Pub Date : 2025-08-04 DOI: 10.1002/macp.202500232

Mikalai Bohdan, Marat Klachok, Dmitriy I. Shiman, Sergei V. Kostjuk

{"title":"Quasiliving Cationic Polymerization of Isobutylene with FeCl3×iPrOH as Co-Initiator in Toluene: A Step Toward Greener Process","authors":"Mikalai Bohdan, Marat Klachok, Dmitriy I. Shiman, Sergei V. Kostjuk","doi":"10.1002/macp.202500232","DOIUrl":"https://doi.org/10.1002/macp.202500232","url":null,"abstract":"<div>\u0000 \u0000 <p>A quasiliving carbocationic polymerization of isobutylene (IB) in toluene using DiCumCl/FeCl<sub>3</sub>×<sup>i</sup>PrOH initiating system at −80°C is investigated. The optimal composition of catalytic complex is found to be FeCl<sub>3</sub>×1.0<sup>i</sup>PrOH, while at lower content of <sup>i</sup>PrOH in a complex side reactions occur resulting in generation of monofunctional polyisobutylene (PIB) fraction. The experiments at different monomer to initiator ratios in conjunction with chain extension experiment confirm the quasiliving nature of the polymerization resulting in well-defined difunctional low molecular weight PIB (M<sub>n</sub> from 1200 to 7000 g⋅mol<sup>−1</sup>, Đ < 1.3). Synthesis of higher molecular weight PIB in toluene leads to the gelation of the polymerization system, hence, the toluene/<i>n</i>-hexane 50:50 v/v mixture is successfully used for the synthesis of PIB with M<sub>n</sub> up to 52 000 g⋅mol<sup>−1</sup> with low dispersity Đ < 1.3. In addition, one-pot syntheses of end-functional PIB are conducted in toluene resulting in vinylidene- and hydroxyl-terminated PIBs with near quantitative functionality.</p>\u0000 </div>","PeriodicalId":18054,"journal":{"name":"Macromolecular Chemistry and Physics","volume":"226 19","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145228153","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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