Macromolecular Chemistry and Physics最新文献

Luminescent Hybrid Material Based on the Europium(III)–β‐Diketone Complex Doped with Smectite 基于掺杂了 Smectite 的铕(III)-β-二酮配合物的发光混合材料

IF 2.5 4区化学

Macromolecular Chemistry and Physics Pub Date : 2024-09-12 DOI: 10.1002/macp.202400208

Rong Cao, Ryota Nishiyama, Kazuki Nakamura, Norihisa Kobayashi

{"title":"Luminescent Hybrid Material Based on the Europium(III)–β‐Diketone Complex Doped with Smectite","authors":"Rong Cao, Ryota Nishiyama, Kazuki Nakamura, Norihisa Kobayashi","doi":"10.1002/macp.202400208","DOIUrl":"https://doi.org/10.1002/macp.202400208","url":null,"abstract":"Lanthanide‐containing organic–inorganic hybrid materials exhibit considerable potential for applications in optical devices. In this study, efficient luminescent hybrid materials are prepared by employing a straightforward doping method to mix the Eu(tta)3phen complex (tta = 2‐thenoyltrifluoroacetone, phen = 1,10‐phenanthroline) with a synthetic clay compound of hectorite (smectite). The comprehensive photophysical properties of dispersion solution containing the Eu(tta)3phen/smectite hybrid material are systematically investigated via ultraviolet‐visible absorption spectroscopy, luminescence spectra, luminescence lifetimes, and Judd–Ofelt analysis. The emission properties of the Eu(tta)3phen are enhanced by its interaction with smectite. Furthermore, the interaction suppressed the molecular vibration of Eu(tta)3phen, resulting in elevated luminescence intensity and quantum efficiency. Moreover, a highly luminescent and transparent polymeric film is prepared by incorporating Eu(tta)3phen/smectite hybrid material into a polymer (PMMA) matrix. With the addition of the smectite compound, the transparency and surface smoothness of the polymeric film are improved. Consistent with the solution state, smectite enhanced the luminescence intensity of Eu(tta)3phen in the film state. This strategy presents a novel opportunity for high‐luminescence imaging devices.","PeriodicalId":18054,"journal":{"name":"Macromolecular Chemistry and Physics","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142177839","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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Functionalized Polyisobutylene and Polyisobutylene‐Based Block Copolymers by Mechanistic Transformation from Cationic to Radical Process 通过从阳离子到自由基过程的机理转变获得功能化聚异丁烯和聚异丁烯基嵌段共聚物

IF 2.5 4区化学

Macromolecular Chemistry and Physics Pub Date : 2024-09-10 DOI: 10.1002/macp.202400261

Yusra Bahar Cakir, Miraslau Makarevich, Mikalai Bohdan, Tugba Celiker, Maksim Hulnik, Irina V. Vasilenko, Baris Kiskan, Sergei V. Kostjuk

{"title":"Functionalized Polyisobutylene and Polyisobutylene‐Based Block Copolymers by Mechanistic Transformation from Cationic to Radical Process","authors":"Yusra Bahar Cakir, Miraslau Makarevich, Mikalai Bohdan, Tugba Celiker, Maksim Hulnik, Irina V. Vasilenko, Baris Kiskan, Sergei V. Kostjuk","doi":"10.1002/macp.202400261","DOIUrl":"https://doi.org/10.1002/macp.202400261","url":null,"abstract":"The strategy for the preparation of polyisobutylene‐based block copolymers via mechanistic transformation from cationic to radical polymerization is reported. This strategy involves the synthesis of 2‐bromo‐2‐methylpropanoyl‐terminated difunctional polyisobutylene macroinitiator (BiBB‐PIB‐BiBB) via consecutive cationic polymerization, in situ preparation of hydroxyl‐terminated polyisobutylene and its acylation by 2‐bromo‐2‐methylpropanoyl bromide. The Mn2(CO)10−triggered photo‐induced radical polymerization of styrene in bulk using this macroinitiator leads to the formation of multiblock copolymer, while predominantly triblock copolymer is generated during the polymerization of methyl methacrylate. The possibility to functionalize the polyisobutylene by pyrene via photo‐induced radical addition of 1‐bromomethyl pyrene in the presence of Mn2(CO)10 is also demonstrated in this work.","PeriodicalId":18054,"journal":{"name":"Macromolecular Chemistry and Physics","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2024-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142177840","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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Masthead: Macromol. Chem. Phys. 17/2024 刊头：Macromol.Chem.17/2024

IF 2.5 4区化学

Macromolecular Chemistry and Physics Pub Date : 2024-09-08 DOI: 10.1002/macp.202470035

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Front Cover: Macromol. Chem. Phys. 17/2024 封面：Macromol.Chem.17/2024

IF 2.5 4区化学

Macromolecular Chemistry and Physics Pub Date : 2024-09-08 DOI: 10.1002/macp.202470034

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Solid‐State NMR Exploration of Factors for Enhancement of Hole Mobility by Introduction of Poly(styrene) Into Poly(3‐hexylthiophene) 固态核磁共振探究在聚(3-己基噻吩)中引入聚(苯乙烯)增强孔迁移率的因素

IF 2.5 4区化学

Macromolecular Chemistry and Physics Pub Date : 2024-08-30 DOI: 10.1002/macp.202400225

Riku Takahashi, Eri Tomita, Shinpei Mukadeyama, Shinji Kanehashi, Kenji Ogino

{"title":"Solid‐State NMR Exploration of Factors for Enhancement of Hole Mobility by Introduction of Poly(styrene) Into Poly(3‐hexylthiophene)","authors":"Riku Takahashi, Eri Tomita, Shinpei Mukadeyama, Shinji Kanehashi, Kenji Ogino","doi":"10.1002/macp.202400225","DOIUrl":"https://doi.org/10.1002/macp.202400225","url":null,"abstract":"Solid‐state cross‐polarization magic angle spinning (CPMAS) 13C NMR is employed to examine the morphological factors that contribute to the enhanced hole mobility observed in poly(3‐hexylthiophene) (P3HT) by the introduction of electrically inert poly(styrene) (PSt). Chain mobilities of crystalline and amorphous phases in the P3HT domain are evaluated utilizing T1C (13C spin‐lattice relaxation time in the laboratory frame). The crystallinity of P3HT component is estimated based on the spectral editing method through T1ρH (1H spin‐lattice relaxation time in the rotating frame) filtered CPMAS. Moreover, the miscibility of P3HT crystalline and P3HT amorphous domains is estimated. These results suggest the formation of the rigid amorphous (short‐range ordered amorphous) in a block copolymer (P3HT‐block‐PSt). An increase in the proportion of the crystallite and proximate presence of each crystallite in a blend sample of P3HT with PSt (P3HT‐blend‐PSt) are also indicated. Enhanced mobility is attributed to the larger portion of rigid amorphous domain for P3HT‐block‐PSt, and to higher crystalline content for P3HT‐blend‐PSt.","PeriodicalId":18054,"journal":{"name":"Macromolecular Chemistry and Physics","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2024-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142177841","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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Aggregation‐Induced Emission Near‐Infrared (NIR)‐II‐Conjugated Polymers Coupled With Nonconjugated Segments for NIR‐II Fluorescence Imaging–Guided NIR‐II Photothermal Therapy 聚合诱导发射的近红外 (NIR)-II 共轭聚合物与非共轭段耦合，用于 NIR-II 荧光成像引导的 NIR-II 光热疗法

IF 2.5 4区化学

Macromolecular Chemistry and Physics Pub Date : 2024-08-29 DOI: 10.1002/macp.202400268

Zixin Hu, Jiarong He, Chenhang Xi, Sicheng Xu, Qingming Shen, Pengfei Chen, Pengfei Sun, Quli Fan

{"title":"Aggregation‐Induced Emission Near‐Infrared (NIR)‐II‐Conjugated Polymers Coupled With Nonconjugated Segments for NIR‐II Fluorescence Imaging–Guided NIR‐II Photothermal Therapy","authors":"Zixin Hu, Jiarong He, Chenhang Xi, Sicheng Xu, Qingming Shen, Pengfei Chen, Pengfei Sun, Quli Fan","doi":"10.1002/macp.202400268","DOIUrl":"https://doi.org/10.1002/macp.202400268","url":null,"abstract":"The development of conjugated polymer–based water‐soluble nanoparticles for near‐infrared‐II (NIR‐II) fluorescence (FL; 1000–1700 nm)‐guided photothermal therapy holds promise in advancing cancer treatment. However, excessive nonradiative decay leads to almost complete quenching of conjugated polymers’ fluorescence. Therefore, a critical challenge is to suppress nonradiative decay while maintaining high‐quality fluorescence imaging and excellent photothermal conversion efficiency. In this study, a series of NIR‐II‐conjugated polymers with aggregation‐induced emission (AIE) effects are designed and synthesized using the Stille coupling reaction. The dual enhancement strategy of modulating the AIE units and introducing non‐conjugated backbone into the polymer backbone resulted in BCT1 with a high αAIE value of 3.27. BCT1 nanoparticles exhibit excellent NIR‐II fluorescence, a high photothermal conversion efficiency of 70.51%, and a tenfold enhancement in fluorescence compared with BT1. Both in vitro and in vivo experiments validated their good biocompatibility and outstanding performance in NIR‐II fluorescence imaging for accurately determining the location of tumors. This study provides a novel strategy and method for designing and developing multifunctional conjugated polymers for NIR‐II fluorescence imaging–guided photothermal therapy.","PeriodicalId":18054,"journal":{"name":"Macromolecular Chemistry and Physics","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2024-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142177842","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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[NVim]Br and Poly([NVim]Br‐Co‐AM): Synthesis and Effects on Inhibiting Clay Swelling and Dispersion and the Mechanisms [NVim]Br 和 Poly([NVim]Br-Co-AM)：合成、对抑制粘土膨胀和分散的作用及其机理

IF 2.5 4区化学

Macromolecular Chemistry and Physics Pub Date : 2024-08-29 DOI: 10.1002/macp.202400141

Lan Li, Yanjun Ren, Rugang Yao, Hong Yang

{"title":"[NVim]Br and Poly([NVim]Br‐Co‐AM): Synthesis and Effects on Inhibiting Clay Swelling and Dispersion and the Mechanisms","authors":"Lan Li, Yanjun Ren, Rugang Yao, Hong Yang","doi":"10.1002/macp.202400141","DOIUrl":"https://doi.org/10.1002/macp.202400141","url":null,"abstract":"To solve the downhole problems correlated with clay hydration swelling and dispersion under high‐temperature conditions, a 1‐aminoethyl‐3‐vinylimidazolium bromide ([NVim]Br) and a [NVim]Br/acrylamide copolymer (poly([NVim]Br‐co‐AM)) are synthesized and used as inhibitors. The molecular structures of [NVim]Br and poly([NVim]Br‐co‐AM) are characterized by FT‐IR and 1H‐NMR. The inhibition properties of [NVim]Br and poly([NVim]Br‐co‐AM) are evaluated by free swelling and dispersion tests, linear swelling, hot roll recovery experiments and thermogravimetric analyses.The inhibition mechanisms were revealed by X‐ray diffraction, zeta potential, wettability analysis and ESEM observation. The results showed that both [NVim]Br and poly([NVim]Br‐co‐AM) has significantly superior inhibition performance compared with the common inhibitors KCl, polyether amine D230 and polyquaternium‐7. Both [NVim]Br and poly([NVim]Br‐co‐AM) can resist 250 °C. [NVim]Br performed excellently in inihibiting both crystalline and osmotic swelling, which depended on the strong electrostatic adsorption and hydrogen bonds of imidazole cations and primary amine in [NVim]+. Poly([NVim]Br‐co‐AM) exerted excellent inhibition by minimizing osmotic swelling, reducing hydrophilicity and increasing clay bonding. The results are important for understanding the rational design of novel efficient inhibitors for drilling high‐temperature shale formation.","PeriodicalId":18054,"journal":{"name":"Macromolecular Chemistry and Physics","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2024-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142177858","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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Fabrication and Characterization of Carrageenan‐Biopolymer Composite Microneedles for Interstitial Fluid Collection 用于间质液体收集的卡拉胶-生物聚合物复合微针的制作与特性分析

IF 2.5 4区化学

Macromolecular Chemistry and Physics Pub Date : 2024-08-28 DOI: 10.1002/macp.202400160

Shreya Shashank Chauhan, Venkata Vamsi Krishna Venuganti

{"title":"Fabrication and Characterization of Carrageenan‐Biopolymer Composite Microneedles for Interstitial Fluid Collection","authors":"Shreya Shashank Chauhan, Venkata Vamsi Krishna Venuganti","doi":"10.1002/macp.202400160","DOIUrl":"https://doi.org/10.1002/macp.202400160","url":null,"abstract":"Identification of suitable polymeric materials to fabricate microneedles (MNs) for the collection of interstitial fluid (ISF) is a challenge. Here, characterization of different carrageenan‐biopolymer composites for MN patch fabrication intended for ISF collection is reported. Systematic oscillatory rheological studies of composites containing iota‐carrageenan mixed with alginate, gelatin, or pectin are performed to determine the linear viscoelastic region, gel point, tan delta, complex viscosity, and flow transition index. A polynomial equation is derived by relating flow transition index of biopolymer composites and compression strength of fabricated MNs. The biopolymer composite of iota‐carrageenan and gelatin at 2% and 14%, respectively, and CaCl2 crosslinker (80 mm) shows the greatest compression strength sufficient for MNs insertion into the excised porcine skin. MNs swell up on application in an agarose gel model and the ex vivo excised porcine skin model to collect 36 ± 5 and 14 ± 1 µL of fluid within 10 min, respectively. Taken together, it is demonstrated that rheological analysis can be performed to select suitable polymer composites that possess sufficient strength for the skin insertion and swellability for ISF collection.","PeriodicalId":18054,"journal":{"name":"Macromolecular Chemistry and Physics","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2024-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142177860","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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Polymer Composite Electrolytes Membrane Consisted of Polyacrylonitrile Nanofibers Containing Lithium Salts: Improved Ion Conductive Characteristics and All‐Solid‐State Battery Performance 由含锂盐的聚丙烯腈纳米纤维组成的聚合物复合电解质膜：改善离子导电特性和全固态电池性能

IF 2.5 4区化学

Macromolecular Chemistry and Physics Pub Date : 2024-08-28 DOI: 10.1002/macp.202400196

Yu Matsuda, Shun Nakazawa, Manabu Tanaka, Hiroyoshi Kawakami

{"title":"Polymer Composite Electrolytes Membrane Consisted of Polyacrylonitrile Nanofibers Containing Lithium Salts: Improved Ion Conductive Characteristics and All‐Solid‐State Battery Performance","authors":"Yu Matsuda, Shun Nakazawa, Manabu Tanaka, Hiroyoshi Kawakami","doi":"10.1002/macp.202400196","DOIUrl":"https://doi.org/10.1002/macp.202400196","url":null,"abstract":"Polymer electrolyte membranes with superior lithium‐ion (Li+) conductivity and sufficient electrochemical stability are desired for all‐solid‐state lithium‐ion batteries (ASS‐LIBs). This paper reports novel polymer composite membranes consisting of polyacrylonitrile (PAN) nanofibers (Nfs) containing lithium salts. It is first revealed that the lithium salt addition increases polar surface groups on the PAN nanofibers. Subsequently, the lithium salts‐containing PAN nanofiber (PAN/Li Nf) composite membrane affects the matrix poly(ethylene oxide) (PEO)/lithium bis(trifluoromethyl sulfonylimide) (LiTFSI) electrolyte to increase the numbers of Li+ with high mobility. Consequently, the PAN/Li Nf composite membrane shows relatively good ion conductivity (σ = 9.0 × 10−5 S cm−1) and a considerably large Li+ transference number (tLi+ = 0.41) at 60 °C, compared to the PEO/LiTFSI membrane without nanofibers. The 6Li solid‐state NMR study supports that the PAN/Li Nf bearing abundant polar nitrile groups at their surface enhances Li+ diffusion in the PEO‐based electrolyte membranes. The galvanostatic constant current cycling tests reveal that the PAN/Li Nf composite membrane possesses good electrochemical and mechanical stabilities. The ASS‐LIB consisting of the PAN/Li Nf composite membrane shows significantly improved charge and discharge cycling performances, promising future all‐solid‐state batteries.","PeriodicalId":18054,"journal":{"name":"Macromolecular Chemistry and Physics","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2024-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142177861","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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Fabrication of Cross‐Linked Polyimide Hollow Microspheres With Lightweight, Thermal Resistance and Controllable Size 制造轻质、耐热、尺寸可控的交联聚酰亚胺中空微球

IF 2.5 4区化学

Macromolecular Chemistry and Physics Pub Date : 2024-08-28 DOI: 10.1002/macp.202400227

Yuntao Fu, Haichao Meng, Fenglin Wang, Huawei Zou, Yinfu Luo, Mei Liang, Peng Xie

{"title":"Fabrication of Cross‐Linked Polyimide Hollow Microspheres With Lightweight, Thermal Resistance and Controllable Size","authors":"Yuntao Fu, Haichao Meng, Fenglin Wang, Huawei Zou, Yinfu Luo, Mei Liang, Peng Xie","doi":"10.1002/macp.202400227","DOIUrl":"https://doi.org/10.1002/macp.202400227","url":null,"abstract":"Polyimide (PI) hollow microspheres possess lightweight and excellent thermal resistance, which are widely used in microreactors, catalysis, adsorption separation, high‐temperature insulation, and so on. In this manuscript, PI hollow microspheres are fabricated by constructing a crosslinked structure combined with gradient heating. The formation of PI hollow microspheres includes gas nucleation, expansion, and imidization. The PI hollow microspheres size is controlled by adjusting polyester ammonium salts size, and microspheres size is distributed in 309–956 µm. PI hollow microspheres have lightweight, excellent heat resistance and carbonization performance, bulk density, initial decomposition temperature, and weight residue at 800 °C is 87.3–178.6 kg m−3, 533.6 °C and 59.8%. The PI hollow microspheres have potential applications in high‐temperature resistant and multifunctional composite materials preparation. Moreover, this method is simple, efficient, and highly operable, which can be used for large‐scale production of PI hollow microspheres.","PeriodicalId":18054,"journal":{"name":"Macromolecular Chemistry and Physics","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2024-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142177859","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