Macromolecular Rapid Communications最新文献_第5页

Monitoring Polypropylene Chain-Scission for Dissolution-Based Recycling by In Situ Near Infrared and Raman Spectroscopy. 用近红外和拉曼光谱原位监测溶解基回收聚丙烯链断裂。

IF 4.2 3区化学

Macromolecular Rapid Communications Pub Date : 2025-01-21 DOI: 10.1002/marc.202400748

Sofiane Ferchichi, Nida Sheibat-Othman, Olivier Boyron, Sébastien Norsic, Maud Rey-Bayle, Vincent Monteil

{"title":"Monitoring Polypropylene Chain-Scission for Dissolution-Based Recycling by In Situ Near Infrared and Raman Spectroscopy.","authors":"Sofiane Ferchichi, Nida Sheibat-Othman, Olivier Boyron, Sébastien Norsic, Maud Rey-Bayle, Vincent Monteil","doi":"10.1002/marc.202400748","DOIUrl":"https://doi.org/10.1002/marc.202400748","url":null,"abstract":"Within the context of polypropylene recycling by dissolution, the potential degradation of polypropylene in solution has been investigated using in situ NIR and Raman spectroscopy. Pure polypropylene, completely free of additives, and commercial polypropylene, low in additives, are degraded on purpose under different conditions. Genetic algorithm combined with partial least squares (GA-PLS) models have been built based on near-infrared (NIR) spectra, and partial least squares (PLS) models based on Raman spectra, to predict the mass average molar mass and the chain-scission rate, respectively, during the degradation process. The variables used in the GA-PLS model from NIR spectra suggest that the main variability is related to physical changes via the baseline. In Raman, a baseline drift due to coloration during the degradation has been used to correlate the spectra with the degradation phenomenon. Both techniques show good predictive performances and can potentially be implemented for real-time supervision of degradation during recycling processes.","PeriodicalId":205,"journal":{"name":"Macromolecular Rapid Communications","volume":" ","pages":"e2400748"},"PeriodicalIF":4.2,"publicationDate":"2025-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142997116","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

Novel AIE-Active Polyarylethersulfone Polymers Incorporating Tetraphenylethene for Enhanced Fluorescence. 新型含四苯乙烯的aie活性聚芳醚砜聚合物增强荧光。

IF 4.2 3区化学

Macromolecular Rapid Communications Pub Date : 2025-01-21 DOI: 10.1002/marc.202401056

Yuchao Luo, Xiang Li, Xinze Zhang, Haoxuan Ren, Haotian Shi, Yanchao Yang, Chunbao Liu, Bin Xu, Wenjing Tian, Guibin Wang

{"title":"Novel AIE-Active Polyarylethersulfone Polymers Incorporating Tetraphenylethene for Enhanced Fluorescence.","authors":"Yuchao Luo, Xiang Li, Xinze Zhang, Haoxuan Ren, Haotian Shi, Yanchao Yang, Chunbao Liu, Bin Xu, Wenjing Tian, Guibin Wang","doi":"10.1002/marc.202401056","DOIUrl":"https://doi.org/10.1002/marc.202401056","url":null,"abstract":"Aggregation-induced emission (AIE) materials have gained significant attention for their unique fluorescence enhancement in the aggregated state. However, combining rigid polymers with AIE molecules to enhance luminescent properties remains to be investigated. In this work, two novel AIE-active polyarylethersulfone (PAES) derivatives are synthesized by incorporating tetraphenylethene (TPE) into either the side chain or main chain of PAES, resulting in side-chain polyarylethersulfone-tetraphenylethene (PAES-TPE) and main-chain polyarylethersulfone-tetraphenylethene (m-PAES-TPE), respectively. These derivatives are designed to investigate the influence of the rigid polymer backbone on the AIE properties of TPE. The incorporation of TPE into PAES resulted in a notable redshift in fluorescence emission compared to pure TPE. Notably, m-PAES-TPE50%, a polymer with 50% molar content of TPE, exhibited a fluorescence quantum yield to 57.43%, more than twice that of TPE powder. Thermal analysis showed that both PAES-TPE and m-PAES-TPE have excellent thermal stability and temperature-dependent fluorescence. Additionally, these materials are processed into hydrophobic nanoparticles, and in vitro experiments demonstrated good fluorescence properties and biocompatibility for cancer cell bioimaging. This work highlights the potential of rigid AIE-active PAES derivatives for advanced bioimaging applications.","PeriodicalId":205,"journal":{"name":"Macromolecular Rapid Communications","volume":" ","pages":"e2401056"},"PeriodicalIF":4.2,"publicationDate":"2025-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142997118","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

Recyclable Nano Zero-Valent Iron (nZVI)-Catalyst-Mediated Sustainable Photopolymerization of Glycidyl Methacrylate in Ionic Liquid and Functional Copolymers Thereof. 可回收纳米零价铁(nZVI)-催化剂介导甲基丙烯酸缩水甘油酯在离子液体中的持续光聚合及其功能共聚物。

IF 4.2 3区化学

Macromolecular Rapid Communications Pub Date : 2025-01-21 DOI: 10.1002/marc.202400971

Amul Jain, Bhanendra Sahu, Nishikanta Singh, Sanjib Banerjee

引用次数: 0

Artificial Cephalopod Skins with Switchable Appearance Color. 具有可切换外观颜色的人工头足类动物皮肤。

IF 4.2 3区化学

Macromolecular Rapid Communications Pub Date : 2025-01-21 DOI: 10.1002/marc.202400937

Jie Zhou, Ziqi Teng, Zongchen Han, Kaiyuan Wang, Jianfeng Hu, Yiran Li, Shengjie Wang, Yongqing Xia

{"title":"Artificial Cephalopod Skins with Switchable Appearance Color.","authors":"Jie Zhou, Ziqi Teng, Zongchen Han, Kaiyuan Wang, Jianfeng Hu, Yiran Li, Shengjie Wang, Yongqing Xia","doi":"10.1002/marc.202400937","DOIUrl":"https://doi.org/10.1002/marc.202400937","url":null,"abstract":"Cephalopods such as squids, octopuses, and cuttlefishes can change their bodies' color to match the surrounding environments by contracting or expanding the sac just below the surface of the skin. Inspired by this mechanism, artificial cephalopod chromatophores which are prepared by thermoresponsive poly(N-isopropyl acrylamide)-based hydrogel films embedded with black, red, and yellow pigments are presented, they can swell and shrink under temperature stimuli, like the natural chromatophores. The artificial chromatophores embedded with cuttlefish ink are further used to fabricate artificial J.heathi octopus skin by sandwiched between a transparent outer layer and a transparency-switchable substrate, thus camouflage skin can be achieved by controlling temperature or NIR irradiation. The artificial chromatophores with red and yellow pigments are further incorporated with the colloidal photonic crystals patches which are embedded in a white substrate, and the iridescence patches keep disappearing-reappearing with the expanding-contracting behavior of the pigment-containing chromatophores, like the skin of squids. These bioinspired artificial skins with the excellent capability of dynamic camouflage have potential applications for color displaying, camouflage, and smart wearable devices.","PeriodicalId":205,"journal":{"name":"Macromolecular Rapid Communications","volume":" ","pages":"e2400937"},"PeriodicalIF":4.2,"publicationDate":"2025-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142997099","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

Graft-to/Graft-From Synthesis of Janus Graft Copolymers for Bottlebrush Polymer Electrolytes. 瓶刷聚合物电解质用Janus接枝共聚物的接枝/接枝合成。

IF 4.2 3区化学

Macromolecular Rapid Communications Pub Date : 2025-01-21 DOI: 10.1002/marc.202400975

Shaoqiao Li, Kairui Guo, Zhigang Xue

{"title":"Graft-to/Graft-From Synthesis of Janus Graft Copolymers for Bottlebrush Polymer Electrolytes.","authors":"Shaoqiao Li, Kairui Guo, Zhigang Xue","doi":"10.1002/marc.202400975","DOIUrl":"https://doi.org/10.1002/marc.202400975","url":null,"abstract":"Janus graft copolymers, which combine the characteristics of block and graft copolymers, have been used in the fields of reaction catalysis, surface modification, and drug delivery, but their applications in lithium batteries have rarely been reported. Herein, Janus graft copolymers with polyethylene glycol (PEG) and polystyrene (PS) side chains are synthesized by combining reversible addition-fragmentation chain transfer (RAFT) polymerization and atom transfer radical polymerization (ATRP) methods and doped with lithium salts to fabricate Janus bottlebrush polymer electrolytes (PEG-J-PS). The PEG side chains of the brush polymers impart good ion-conducting properties to the electrolytes, while the PS side chains improve the mechanical strength and thermal and chemical stability of the electrolytes. Notably, the PEG-J-PS can effectively improve the motility of the polymer chain segments compared to the conventional block copolymer electrolytes (PEG-b-PS). The prepared PEG-J-PS exhibits a considerable ionic conductivity of 2.06 × 10-5 S cm-1 at 30 °C and high tensile stress (2.39 MPa) and tensile strain (143%) of the PEG45-J-PS20 owing to its Janus graft structure.","PeriodicalId":205,"journal":{"name":"Macromolecular Rapid Communications","volume":" ","pages":"e2400975"},"PeriodicalIF":4.2,"publicationDate":"2025-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142997104","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

Rational Design of Quinoidal Conjugated Polymers for Photothermal Antibacterial Therapy. 光热抗菌用奎氏共轭聚合物的合理设计。

IF 4.2 3区化学

Macromolecular Rapid Communications Pub Date : 2025-01-21 DOI: 10.1002/marc.202401031

Zhide Hao, Hailin Zhou, Dong Gao, Liang Qiu, Chengfen Xing

{"title":"Rational Design of Quinoidal Conjugated Polymers for Photothermal Antibacterial Therapy.","authors":"Zhide Hao, Hailin Zhou, Dong Gao, Liang Qiu, Chengfen Xing","doi":"10.1002/marc.202401031","DOIUrl":"https://doi.org/10.1002/marc.202401031","url":null,"abstract":"The increasing prevalence of antibiotic resistance, driven by the overuse and misuse of conventional antibiotics, has become a critical public health concern. Photothermal antibacterial therapy (PTAT) utilizes heat generated by photothermal agents under light exposure to inhibit bacterial growth without inducing resistance, attracting more and more attention. Quinoid conjugated polymers, especially para-azaquinodimethane (AQM) polymer, are a class of organic semiconductors known for efficient π-electron delocalization, near-infrared absorption, and narrow bandgap, showing great potential in the application of photothermal reagents. However, current AQM polymers face challenges related to their solubility, photostability, and biocompability. In this study, tetraglycol is introduced onto the AQM core for improving the drawbacks of the resulting polymers. Two AQM polymers with different electron donor (thiophene and 2,2'-bithiophene) are synthesized and evaluated for their various properties. PAQMT exhibited superior performance, including higher extinction coefficients, improved light absorption, and greater stability under repeated NIR irradiation. PAQMT is further developed into nanoparticles via encapsulation, resulting in excellent colloidal stability, effective bacterial inhibition under 808 nm NIR light. This work provides new strategy in improving the solubility, photostability, and photothermal properties of AQM polymers, offers opportunities for promoting the application of quinoidal conjugated polymers in PTAT.","PeriodicalId":205,"journal":{"name":"Macromolecular Rapid Communications","volume":" ","pages":"e2401031"},"PeriodicalIF":4.2,"publicationDate":"2025-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142997121","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

Aptamer-Coupled Polymer-Grafted Fe₃O₄ Nanoparticles for Highly Efficient Isolation of Exosomes. 高效分离外泌体的适体偶联聚合物接枝Fe3O4纳米颗粒。

IF 4.2 3区化学

Macromolecular Rapid Communications Pub Date : 2025-01-21 DOI: 10.1002/marc.202400819

Daqiang Huang, Junjun Yu, Jia Tian, Haibo Cai, Weian Zhang

{"title":"Aptamer-Coupled Polymer-Grafted Fe3O4 Nanoparticles for Highly Efficient Isolation of Exosomes.","authors":"Daqiang Huang, Junjun Yu, Jia Tian, Haibo Cai, Weian Zhang","doi":"10.1002/marc.202400819","DOIUrl":"https://doi.org/10.1002/marc.202400819","url":null,"abstract":"Exosomes, the bioactive particles secreted by various cells, are essential in mediating cellular communication. However, their small size and the interference from non-exosome proteins present significant hurdles for their rapid and non-destructive capture and release. To overcome these obstacles, a promising strategy to efficiently and selectively isolate exosomes from mesenchymal stem cells (MSCs) is developed by using CD63 aptamer-conjugated magnetic nanoparticles (Fe3O4-Aptamer). The Fe3O4 nanoparticles are first modified by RAFT polymerization of N-(methacryloyloxy) succinimide and oligoethylene glycol methacrylate, and subsequently, CD63 aptamers are grafted onto the surface of nanoparticles to produce Fe3O4-Aptamer. These aptamer units act as a \"lock and key\" recognition with the CD63 proteins on exosomes, enabling specific binding to exosomes. The Fe3O4-Aptamer can efficiently capture exosomes in a conditioned medium, and be easily collected by an external magnetic field, facilitating the facile collection and multiple-cycle reuse of Fe3O4-Aptamer. By introducing the complementary sequence of the CD63 aptamer, the captured exosomes can be rapidly released from Fe3O4-Aptamer because of the stronger binding affinity between the complementary sequence and the aptamers. When utilized for exosome isolation, the exosome-capture and release efficiency of Fe3O4-Aptamer can achieve up to ca. 82.9% and 96.1%, respectively. Thus, Fe3O4-Aptamer offers a promising and facile strategy for the highly efficient isolation of exosomes.","PeriodicalId":205,"journal":{"name":"Macromolecular Rapid Communications","volume":" ","pages":"e2400819"},"PeriodicalIF":4.2,"publicationDate":"2025-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142997096","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

Photoswitchable Branched Polyurethanes Based on Hexaarylbiimidazole for Photolithography. 光刻用六芳基双咪唑支化聚氨酯。

IF 4.2 3区化学

Macromolecular Rapid Communications Pub Date : 2025-01-21 DOI: 10.1002/marc.202401081

Ying-Yi Ren, Peng-Fei Luo, Jun-Dan Huang, Hong-Qiang Li, Mei Wu, Chong Li, Shi-Li Xiang, Ming-Qiang Zhu

{"title":"Photoswitchable Branched Polyurethanes Based on Hexaarylbiimidazole for Photolithography.","authors":"Ying-Yi Ren, Peng-Fei Luo, Jun-Dan Huang, Hong-Qiang Li, Mei Wu, Chong Li, Shi-Li Xiang, Ming-Qiang Zhu","doi":"10.1002/marc.202401081","DOIUrl":"https://doi.org/10.1002/marc.202401081","url":null,"abstract":"Hexaarylbiimidazole (HABI) molecules have awakened a broad interest in photo-processing, super-resolution imaging, photoinduced self-healing materials, and photomechanical hydrogels due to their excellent photosensitivity and photo-induced cleavage properties. In this work, a novel photoswitchable branched polyurethanes (BPU), which are synthesized by copolymerizing HABI with glycerol, isophorone diisocyanate (IPDI), and polyethylene glycol (PEG400), is designed. 7-Diethylamino-4-methylcoumarin (DMCO) is introduced as a radical quencher, which can not only avoid the hydroxyl interfering from conventional radical scavengers during the polymerization process but also promote efficient quenching of TPIR radicals. By optimizing the DMCO concentration, and HABI content, high-quality lithographic patterns are achieved with high film retention at low exposure doses. The branched structure exhibits superior photosensitivity and solubility after exposure compared to previous crosslinked systems. This work provides HABI-based branched polyurethane, which acts as one of the potential candidates for UV-positive photoresists.","PeriodicalId":205,"journal":{"name":"Macromolecular Rapid Communications","volume":" ","pages":"e2401081"},"PeriodicalIF":4.2,"publicationDate":"2025-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142997119","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

Halogen-Bearing Peptide Liquid Crystals to Elicit Molecular Alignments for Residual Dipolar Coupling Measurement. 含卤素肽液晶引出残余偶极耦合测量的分子排列。

IF 4.2 3区化学

Macromolecular Rapid Communications Pub Date : 2025-01-21 DOI: 10.1002/marc.202401002

Yu Chen, Jin-Hao He, Tian-Zi Luo, Si-Yong Qin, Xinxiang Lei

引用次数: 0

Synthesis of Biomass-Based Linear Aliphatic Polyesters Based on Sebacic Acid and 1,18-Octadecanedioic Acid and Their Thermal Properties and Odd-Even Effect. 癸二酸和1,18-十八烯二酸基生物质直线型脂肪族聚酯的合成及其热性能和奇偶效应

IF 4.2 3区化学

Macromolecular Rapid Communications Pub Date : 2025-01-16 DOI: 10.1002/marc.202400941

Joshua Wen Jun Loh, Nam-Hai Chua, Atsushi Goto

{"title":"Synthesis of Biomass-Based Linear Aliphatic Polyesters Based on Sebacic Acid and 1,18-Octadecanedioic Acid and Their Thermal Properties and Odd-Even Effect.","authors":"Joshua Wen Jun Loh, Nam-Hai Chua, Atsushi Goto","doi":"10.1002/marc.202400941","DOIUrl":"https://doi.org/10.1002/marc.202400941","url":null,"abstract":"A series of biomass-based linear aliphatic polyesters are synthesized by combining sebacic acid (SA) (C10 diacid) and 1,18-octadecanedioic acid (OA) (C18 diacid) with a series of diols with varied alkyl chain lengths (C2 to C10 diols). SA and OA are obtainable from castor oil and palm oil, respectively. The reaction extent (polymerization extent) is high (≥96%) in all cases, and the number-average molecular weight (Mn) is 10 000-43 000 g mol-1 after purification. A possible limitation of currently available biomass-derived polyesters is their relatively low melting temperatures (Tm). The polyesters synthesized using OA with a long alkyl chain (C18 chain) in the present work exhibit relatively high Tm values of 78-93 °C, which are rather close to that (105-118 °C) of low-density polyethylene (LDPE), and may serve as biomass-based alternatives to LDPE with respect to thermal properties. Scientifically notably, an odd-even effect is observed in the Tm values. Polyesters with an even total-number of carbon atoms in the repeating unit have higher Tm values than their odd total-number counterparts likely due to their different orientations of dipoles of the polar ester groups along the backbone chain.","PeriodicalId":205,"journal":{"name":"Macromolecular Rapid Communications","volume":" ","pages":"e2400941"},"PeriodicalIF":4.2,"publicationDate":"2025-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142997125","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