Macromolecular Chemistry and Physics最新文献_第8页

Solvent Effects in the Synthesis of Highly Charged Foams of Poly(4-styrenesulfonate-co-glycidylmethacrylate) for Efficient Adsorption of Methylene Blue Enhanced by Aromatic–Aromatic Interactions 聚（4-苯乙烯磺酸盐-共缩水甘油基甲基丙烯酸酯）高电荷泡沫合成过程中的溶剂效应可通过芳香族-芳香族相互作用增强对亚甲蓝的有效吸附

IF 2.5 4区化学

Macromolecular Chemistry and Physics Pub Date : 2024-11-26 DOI: 10.1002/macp.202400381

Mario Estrada, Takeo Suga, Ignacio Moreno-Villoslada

{"title":"Solvent Effects in the Synthesis of Highly Charged Foams of Poly(4-styrenesulfonate-co-glycidylmethacrylate) for Efficient Adsorption of Methylene Blue Enhanced by Aromatic–Aromatic Interactions","authors":"Mario Estrada, Takeo Suga, Ignacio Moreno-Villoslada","doi":"10.1002/macp.202400381","DOIUrl":"https://doi.org/10.1002/macp.202400381","url":null,"abstract":"Water-resistant porous solid foams expressing a high amount of benzene sulfonate moieties have been fabricated to enhance the adsorption of cationic aromatic pollutants from wastewaters by aromatic–aromatic interactions. Copolymers of sodium 4-styrene sulfonate (NaSS) and glycidyl methacrylate (GMA) have been obtained and submitted to thermal treatment at 270 °C for 15 min. The influence of the solvent used in the copolymerization step on foamability and foam stability, when formed, has been studied. The use of water as cosolvent with N,N-dimethyl formamide (DMF) inhibited foam formation. The use of DMF or DMF/dimethyl sulfoxide (DMSO) = 1:1 as solvents allowed the expansion of copolymers, but the resulting foams are unstable in water, forming hydrogels. However, using DMF/DMSO = 5:1 as solvent, stable water-resistant foams showing NaSS molar fractions of 43, 57, and 68% are obtained, showing high maximum capacity of 244, 435 and 588 mg g−1 and outstanding pseudo-second-order kinetic constants of 1.78, 4.49 and 5.64 g mg−1 min−1 toward adsorption of methylene blue (MB), between 2 and 5 orders-of-magnitude higher than referenced adsorbents. This is due to the highly exposed benzene sulfonate active sites / adsorbent mass ratio that induces strong aromatic–aromatic interactions with the cationic aromatic dye.","PeriodicalId":18054,"journal":{"name":"Macromolecular Chemistry and Physics","volume":"226 4","pages":""},"PeriodicalIF":2.5,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143455928","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}

引用次数: 0

Pre-Treatment Effects on Isothermal Crystallization Behavior of Isotactic Polypropylene

IF 2.5 4区化学

Macromolecular Chemistry and Physics Pub Date : 2024-11-23 DOI: 10.1002/macp.202400376

Yoshitomo Furushima, Akihiko Toda, Masaru Nakada, Subaru Konishi, Hirotaka Shioji, Yuki Yoshida, E. Billur Sevinis Ozbulut, Mehmet Dinc, Benedikt Keitel, Boris Mizaikoff, Masatoshi Ohkura

{"title":"Pre-Treatment Effects on Isothermal Crystallization Behavior of Isotactic Polypropylene","authors":"Yoshitomo Furushima, Akihiko Toda, Masaru Nakada, Subaru Konishi, Hirotaka Shioji, Yuki Yoshida, E. Billur Sevinis Ozbulut, Mehmet Dinc, Benedikt Keitel, Boris Mizaikoff, Masatoshi Ohkura","doi":"10.1002/macp.202400376","DOIUrl":"https://doi.org/10.1002/macp.202400376","url":null,"abstract":"The effects of crystal nuclei or crystallization on the isothermal crystallization behavior of isotactic polypropylene homopolymer are examined using fast scanning calorimetry (FSC) and wide-angle X-ray scattering (WAXD). During crystalline nucleation below the glass transition temperature as described by Tammann's two-stage nucleation approach, an increased crystallization rate is observed, regardless of whether the mesophase structures formed in the low-temperature region or α-crystals formed in the high-temperature region. No increase in isothermal crystallization rate is detected following self-nucleation just above the melting point. Additionally, the influence of the pre-existing crystals on the subsequent crystallization behavior is investigated by combining crystallization time and temperature profiles, whereby crystallization at high temperatures is followed by slight crystallization at low temperatures, and in reverse order. Surprisingly, it is confirmed that the presence of pre-existing crystals do not affect the subsequent crystallization rate. The crystallization rate of iPP is influenced only by low-temperature pre-annealing that enhances the pre-nucleation.","PeriodicalId":18054,"journal":{"name":"Macromolecular Chemistry and Physics","volume":"226 3","pages":""},"PeriodicalIF":2.5,"publicationDate":"2024-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143253130","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}

引用次数: 0

Red-shifted and Dramatically Enhanced Fluorescence Emissions from Sodium Alginate-Polyethyleneimine Polyelectrolyte Complexes

IF 2.5 4区化学

Macromolecular Chemistry and Physics Pub Date : 2024-11-23 DOI: 10.1002/macp.202400411

Yunqi Shi, Xiaomi Zhang, Yunhao Bai, Wendi Xie, Junwen Deng, Huiliang Wang

{"title":"Red-shifted and Dramatically Enhanced Fluorescence Emissions from Sodium Alginate-Polyethyleneimine Polyelectrolyte Complexes","authors":"Yunqi Shi, Xiaomi Zhang, Yunhao Bai, Wendi Xie, Junwen Deng, Huiliang Wang","doi":"10.1002/macp.202400411","DOIUrl":"https://doi.org/10.1002/macp.202400411","url":null,"abstract":"The development of nontraditional luminogens (NTLs) with enhanced and red-shifted emissions has attracted rapidly increasing attention. Here, a new strategy is provided for preparing NTLs with enhanced and red-shifted emissions based on polyelectrolyte complexes (PECs) formed by an anionic polyelectrolyte sodium alginate (SA) and a cationic polyelectrolyte polyethyleneimine (PEI). The direct blending of SA and PEI leads to enhanced emissions but no red-shift in emission wavelengths in the solution and dried films. After soaking in HCl solutions (pH≤2.0), SA-PEI PEC films are obtained. The SA-PEI PEC wet and dried films show maximum emissions at ≈ 370 and 470 nm as well as a significantly red-shifted emission at 550 nm. The SA-PEI PEC dried films maintain high quantum yields under a wide range of excitation wavelengths and the quantum yield is as high as 29.4% under 470 nm excitation. Furthermore, the films emit nearly white fluorescence under the irradiation of 290 or 370 nm UV light. The enhanced and red-shifted emission is attributed to the formation of the compact luminescent clusters with more extended through-space conjugation and rigidified conformations through ionic bonding between NH+ groups and COO− groups and the enhanced hydrogen bonding.","PeriodicalId":18054,"journal":{"name":"Macromolecular Chemistry and Physics","volume":"226 5","pages":""},"PeriodicalIF":2.5,"publicationDate":"2024-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143555122","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}

引用次数: 0

Front Cover: Macromol. Chem. Phys. 22/2024 封面：Macromol.Chem.22/2024

IF 2.5 4区化学

Macromolecular Chemistry and Physics Pub Date : 2024-11-22 DOI: 10.1002/macp.202470044

引用次数: 0

Masthead: Macromol. Chem. Phys. 22/2024 刊头：Macromol.Chem.22/2024

IF 2.5 4区化学

Macromolecular Chemistry and Physics Pub Date : 2024-11-22 DOI: 10.1002/macp.202470045

引用次数: 0

Research Progress and Applications of Benzocyclobutene-Based Functional Polymers

IF 2.5 4区化学

Macromolecular Chemistry and Physics Pub Date : 2024-11-18 DOI: 10.1002/macp.202400338

Qi Wang, Meng Xie, Yan He, Rui Xue, Jin Guo, Wenxin Fu

{"title":"Research Progress and Applications of Benzocyclobutene-Based Functional Polymers","authors":"Qi Wang, Meng Xie, Yan He, Rui Xue, Jin Guo, Wenxin Fu","doi":"10.1002/macp.202400338","DOIUrl":"https://doi.org/10.1002/macp.202400338","url":null,"abstract":"Benzocyclobutene (BCB) stands out as a compound of remarkable structural distinction, featuring a thermodynamically stable benzene ring coupled with a kinetically dynamic four-membered ring. This unique structure allows for ring-opening reactions under specific conditions, leading to the formation of crosslinking products. The primary initiation for the ring-opening of the four-membered ring in BCB is heat, although mechanical stress and light exposure can also trigger this transformation. This ability has catapulted it to prominence in the field of polymer material development. It has spurred the creation of a vast array of polymers that incorporate BCB groups either in their main chains or side chains, showcasing BCB's extensive applicability as a crosslinking agent. Additionally, BCB-based polymers (BCB polymer) exhibit a suite of desirable properties, such as exceptional dielectric characteristics, chemical and thermal resilience, minimal thermal expansion, and low moisture uptake. These attributes render them particularly suitable for a range of applications, including electronic packaging, silicon-based photonic integration, flat panel display technology, biomedical devices, and beyond. This paper delves into the various methods of inducing ring-opening crosslinking in BCB, summarizes the recent advancements in performance enhancement of BCB polymer materials, and examines their wide applications in different fields.","PeriodicalId":18054,"journal":{"name":"Macromolecular Chemistry and Physics","volume":"226 1","pages":""},"PeriodicalIF":2.5,"publicationDate":"2024-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143116073","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}

引用次数: 0

Copolymerization of CO2 and Cyclohexene Oxide in the Presence of Functional Transfer Agents Provides Telechelic Polycarbonates: Synthesis of CO2-Containing Macromonomers and Macroinitiators

IF 2.5 4区化学

Macromolecular Chemistry and Physics Pub Date : 2024-11-18 DOI: 10.1002/macp.202400383

Riccardo Chiarcos, Katia Sparnacci, Diego Antonioli, Sabrina Carola Carroccio, Giusy Curcuruto, Riccardo Po, Paolo Biagini, Simona Losio, Michele Laus

{"title":"Copolymerization of CO2 and Cyclohexene Oxide in the Presence of Functional Transfer Agents Provides Telechelic Polycarbonates: Synthesis of CO2-Containing Macromonomers and Macroinitiators","authors":"Riccardo Chiarcos, Katia Sparnacci, Diego Antonioli, Sabrina Carola Carroccio, Giusy Curcuruto, Riccardo Po, Paolo Biagini, Simona Losio, Michele Laus","doi":"10.1002/macp.202400383","DOIUrl":"https://doi.org/10.1002/macp.202400383","url":null,"abstract":"One possible way to store the excess CO2 present in atmosphere is to use it as a reagent for the synthesis of commodities. In particular, CO2 and epoxides can be copolymerized to produce a large variety of polycarbonates which appear very promising in various application fields. Further, the addition of an appropriate transfer agent in the reaction mixture promotes the formation of telechelic polycarbonates which can be used where specific functional polymers are necessary. In this work, (hydroxyethyl) methacrylate and 2-hydroxyethyl-2-bromoisobutyrate species are exploited as transfer agents in the copolymerization of CO2 and cyclohexene oxide, in the presence of a macrocyclic phenolate dimagnesium catalyst. The effect of the transfer agent concentration on the polycarbonate characteristics is evaluated. Finally, the obtained telechelic polycarbonates are used as macromonomers and macroinitiators in the synthesis of statistical and block copolymers.","PeriodicalId":18054,"journal":{"name":"Macromolecular Chemistry and Physics","volume":"226 3","pages":""},"PeriodicalIF":2.5,"publicationDate":"2024-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/macp.202400383","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143252951","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}

引用次数: 0

Ionic Thermoelectric Materials Based on the Thermodiffusion Effect: Mechanism, Advancements, and Applications

IF 2.5 4区化学

Macromolecular Chemistry and Physics Pub Date : 2024-11-15 DOI: 10.1002/macp.202400358

Mi Fu, Zhenxuan Sun, Yuwei Yuan, Kan Yue

{"title":"Ionic Thermoelectric Materials Based on the Thermodiffusion Effect: Mechanism, Advancements, and Applications","authors":"Mi Fu, Zhenxuan Sun, Yuwei Yuan, Kan Yue","doi":"10.1002/macp.202400358","DOIUrl":"https://doi.org/10.1002/macp.202400358","url":null,"abstract":"The relentless increase in global energy consumption, coupled with the detrimental effects of over-reliance on non-renewable fossil fuels, has necessitated a paradigm shift in the energy industry towards sustainable energy sources. Thermoelectric materials have emerged as a promising avenue for harnessing waste heat, offering a viable solution to the dual challenges of energy scarcity and environmental pollution. Compared with traditional electronic thermoelectric materials, ionic thermoelectric (i-TE) materials have received increasing attention. This review provides an overview of the recent advancements in i-TE materials based on the thermodiffusion effect, including an in-depth analysis of the fundamental principle, material design, and potential applications. The significance of material selection is highlighted, with types of i-TE materials ranging from liquid to quasi-solid and solid states, each presenting unique advantages and challenges. The innovative microstructural engineering and regulating interactions are identified as key strategies to enhance the thermoelectric performance of i-TE materials. Furthermore, the applications in capacitors and generators and sensing devices are summarized, demonstrating their potentials in varieties of scenarios. Encouraged by the recent rapid progresses, it is believed that the ionic i-TE materials and related technology are expected to generate practical impacts in the future solutions for sustainable energy.","PeriodicalId":18054,"journal":{"name":"Macromolecular Chemistry and Physics","volume":"226 2","pages":""},"PeriodicalIF":2.5,"publicationDate":"2024-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143115128","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}

引用次数: 0

Reversible Demountable Coating Films Composed of Trifunctional Liquid Anthracene Compounds and Evaluation of Their Adhesive Properties

IF 2.5 4区化学

Macromolecular Chemistry and Physics Pub Date : 2024-11-15 DOI: 10.1002/macp.202400217

Haruhisa Akiyama, Tamaki Fukada, Yoko Matsuzawa, Kouki Akaike

{"title":"Reversible Demountable Coating Films Composed of Trifunctional Liquid Anthracene Compounds and Evaluation of Their Adhesive Properties","authors":"Haruhisa Akiyama, Tamaki Fukada, Yoko Matsuzawa, Kouki Akaike","doi":"10.1002/macp.202400217","DOIUrl":"https://doi.org/10.1002/macp.202400217","url":null,"abstract":"Technologies that facilitate recycling are attracting considerable interest from the perspective of resource constraints. In the present study, degradable primer films are to facilitate the removal of strongly bonded joints. This film consists of a light-cured trifunctional anthracene compound that thermally decomposes to its original liquid state. To demonstrate its function as a degradable primer film and verify its range of applications, various substrates, such as aluminum alloys, stainless steel, carbon fiber-reinforced plastics, carbon fiber-reinforced thermoplastics, and polyetheretherketone, are bonded through the primer film using a two-component epoxy adhesive. All the single-lap specimens exhibit strengths above 10 MPa, which is sufficient, or base material fracture. When adhesive bonding specimens prepared using the same procedure are heated at 180 °C to transform the coating film to a liquid state, the bond strength is significantly reduced. The primer film is expected to exhibit long-term stability of more than one year at ≈60 °C.","PeriodicalId":18054,"journal":{"name":"Macromolecular Chemistry and Physics","volume":"226 4","pages":""},"PeriodicalIF":2.5,"publicationDate":"2024-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/macp.202400217","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143456110","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}

引用次数: 0

Effect of Composition on Processing and Mechanical Properties of TPE for Injection Molding Automotive Skin

IF 2.5 4区化学

Macromolecular Chemistry and Physics Pub Date : 2024-11-15 DOI: 10.1002/macp.202400314

Shuwen Liu, Dong Wang, Guomin Guo, Jihai Zhang, Jun Qiu, Aimin Zhang

引用次数: 0