Macromolecular Rapid Communications最新文献_第8页

Skeletal Modification of Polyisoindigo to Poly[3,3'-(Ethane-1,2-Diylidene)Bis(Indolin-2-One)] via Cleavage, Insertion, and Deletion. 通过切割、插入和缺失，聚异靛蓝骨架修饰为聚[3,3'-（乙烷-1,2-二酰基）二（吲哚林-2- 1）]。

IF 4.2 3区化学

Macromolecular Rapid Communications Pub Date : 2025-07-10 DOI: 10.1002/marc.202500474

Li-Chieh Chang, Hsiang-Jou Chang, Yen-Yu Chen, Ching-Wei Lin, Yu-Ying Lai

{"title":"Skeletal Modification of Polyisoindigo to Poly[3,3'-(Ethane-1,2-Diylidene)Bis(Indolin-2-One)] via Cleavage, Insertion, and Deletion.","authors":"Li-Chieh Chang, Hsiang-Jou Chang, Yen-Yu Chen, Ching-Wei Lin, Yu-Ying Lai","doi":"10.1002/marc.202500474","DOIUrl":"https://doi.org/10.1002/marc.202500474","url":null,"abstract":"Approaches for skeletal modification of conjugated polymers are limited. This study investigates the conversion of the isoindigo group into the 3,3'-(ethane-1,2-diylidene)bis(indolin-2-one) (EBI) moiety. Optimal reaction conditions, involving triethylamine (TEA), H2O, and O2, are employed for the skeletal modification of polyisoindigo P1 into polyEBI P2. The success of this transformation is confirmed through NMR, UV-vis spectroscopy, and gel permeation chromatography. A proposed mechanism for the P1-to-P2 conversion involves TEA activation, retro-aldol reactions, and subsequent aldol reactions. This modification is conceptually akin to CRISPR gene editing, encompassing three key steps: cleavage, insertion, and deletion. However, the skeletal modification of another polyisoindigo, P3, is unsuccessful, likely due to the absence of the insertion and deletion steps. Additionally, the thermal, electrochemical, optical, and scattering properties of the polymers are characterized. This study introduces a novel method for modifying polyisoindigo into polyEBI, advancing skeletal modification strategies for conjugated polymers.","PeriodicalId":205,"journal":{"name":"Macromolecular Rapid Communications","volume":" ","pages":"e00474"},"PeriodicalIF":4.2,"publicationDate":"2025-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144599007","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

Synthesis and Characterization of a New Wide Bandgap Donor Polymer through Direct Arylation Polycondensation Method for Enhanced Performance in Ternary Non-Fullerene Organic Solar Cells. 直接芳基化缩聚法合成一种新型宽禁带给体聚合物并表征其在三元非富勒烯有机太阳能电池中的性能。

IF 4.2 3区化学

Macromolecular Rapid Communications Pub Date : 2025-07-10 DOI: 10.1002/marc.202500357

M L Keshtov, A R Khokhlov, D P Kalinkin, D Y Shikin, Hemraj Dahya, S Karak, Ganesh D Sharma

{"title":"Synthesis and Characterization of a New Wide Bandgap Donor Polymer through Direct Arylation Polycondensation Method for Enhanced Performance in Ternary Non-Fullerene Organic Solar Cells.","authors":"M L Keshtov, A R Khokhlov, D P Kalinkin, D Y Shikin, Hemraj Dahya, S Karak, Ganesh D Sharma","doi":"10.1002/marc.202500357","DOIUrl":"https://doi.org/10.1002/marc.202500357","url":null,"abstract":"The ternary active layer approach has emerged as a promising approach to further boost the power conversion efficiency of organic solar cells. In order to absorb photons from the solar radiation below 600 nm, we have designed and synthesized a new wide bandgap polymer P(FCzNDT-DFTPhz) consisting of strong 5,6-bis(6-fluoro-9H-carbazol-3-yl)naphtho[2,1-b:3,4-b']dithiophene and di-fluoro-dithieno [3,2-a:2',3'-c]phenazine donor and acceptor units, respectively, its optical and electrochemical properties were investigated. The P(FCzNDT-DFTPhz) exhibits strong absorption spectrumbelow 650 nm along with deeper HOMO energy level (-5.46 eV), which is beneficial for attaining high open circuit voltage. Utilizing P(FCzNDT-DFTPhz) as donor and Y6 as acceptor, the organic solar cells fabricated under ambient conditions, processed with non-halogenated solvent (toluene) attained a power conversion efficiency of 15.59% which is higher than that for PTB7-Th:Y6 counterparts (12.98%). When P(FCzNDT-DFTPhz) is incorporated into PTB7-Th:Y6 binary active layer, the ternary organic solar cells fabricated under ambient conditions, attained power conversion efficiency of 17.36%, which is due to the fact that P(FCzNDT-DFTPhz) and PTB7-Th exhibits complementary absorption spectra, increasing thelight harvesting efficiency and exciton generation rate. This leads to a simultaneous increase in short circuit current and fill factor, originated exciton utilization via energy transfer from P(FCzNDT-DFTPhz) to PTB7-Th, efficient exciton dissociation owing to increase D/A interfaces in ternary active layer, higher charge carrier mobilities and well-balanced charge transport, suppressed carrier recombination and fast charge extraction time and prolonged charge carrier lifetime.","PeriodicalId":205,"journal":{"name":"Macromolecular Rapid Communications","volume":" ","pages":"e00357"},"PeriodicalIF":4.2,"publicationDate":"2025-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144599008","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

Controlled Degradation of PBAT for PBAT/PLA Blend Melt-Blown Nonwovens PBAT/PLA共混熔喷非织造布中PBAT的可控降解。

IF 4.3 3区化学

Macromolecular Rapid Communications Pub Date : 2025-07-10 DOI: 10.1002/marc.202500276

Gillian Binley, Tizazu H. Mekonnen

{"title":"Controlled Degradation of PBAT for PBAT/PLA Blend Melt-Blown Nonwovens","authors":"Gillian Binley, Tizazu H. Mekonnen","doi":"10.1002/marc.202500276","DOIUrl":"10.1002/marc.202500276","url":null,"abstract":"This study utilized the chain-scission capability of peroxides, such as aqueous hydrogen peroxide (H2O2), to induce controlled degradation of poly(butylene adipate-co-terephthalate)(PBAT) through reactive batch mixing with the objective of increasing the melt flow index (MFI). The effects of the peroxide concentration and processing time were examined, and the results showed that concentration had the greatest impact, with an approximate 450% increase in MFI at the optimal peroxide concentration. On the other hand, the peroxide treatment had a minimal impact on crystallinity and thermal properties. Degradation was deemed to occur chiefly via random chain scission with contributions from heat and hydrolysis, as supported by proton nuclear magnetic resonance spectroscopy (+HNMR). The treated PBAT sample showed promise in melt-blown micro-fiber production, producing fibers with a 68% smaller average diameter than that of the untreated PBAT. The treated PBAT was then blended with various levels of high MFI poly(lactic acid) (PLA) to optimize properties and cost of the resulting micro-fiber material. As expected, the blends demonstrated increased tensile strength and decreased elongation at break with higher PLA contents, up to 30% and 13%, respectively, successfully balancing the material properties of the PBAT starting material. Despite these favorable tensile properties, the material blend remained suboptimal due to evidence of phase separation. To bridge this incompatibility, maleation was implemented, resulting in a polymer characterized by improved homogeneity, thereby enabling the production of uniform fibers without compromising desired tensile properties. The melt-blowing generated PBAT-PLA micro-fibers can have applications as a sustainable alternative for polypropylene-dominated HVAC air filters, medical masks, etc.","PeriodicalId":205,"journal":{"name":"Macromolecular Rapid Communications","volume":"46 17","pages":""},"PeriodicalIF":4.3,"publicationDate":"2025-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/marc.202500276","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144599003","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

RAFT Polymers-Capped Lanthanide-Doped Nanoparticles via "One-Pot" Aminolysis/Thiolate-Grafting. 通过“一锅”氨解/硫代酸接枝的RAFT聚合物覆盖镧系掺杂纳米颗粒。

IF 4.2 3区化学

Macromolecular Rapid Communications Pub Date : 2025-07-10 DOI: 10.1002/marc.202500427

Srideep Dasari, Thavan Kasilingam, Priya Bhatt, Manu Smriti Singh, Sonu Kumar

{"title":"RAFT Polymers-Capped Lanthanide-Doped Nanoparticles via \"One-Pot\" Aminolysis/Thiolate-Grafting.","authors":"Srideep Dasari, Thavan Kasilingam, Priya Bhatt, Manu Smriti Singh, Sonu Kumar","doi":"10.1002/marc.202500427","DOIUrl":"https://doi.org/10.1002/marc.202500427","url":null,"abstract":"We here describe a synthetic strategy to efficiently prepare polymer-functionalized lanthanide-doped nanoparticles (LNPs) via \"one-pot\" ω-chain end aminolysis/thiolate-grafting of reversible addition-fragmentation chain-transfer (RAFT) polymers onto the surface of LNPs. Two representative polymers, poly(diethylene glycol methyl ether methacrylate) (PDEGMA) and poly[poly(ethylene glycol) methyl ether methacrylate] (PPEGMA), are prepared via RAFT, and their end-group functionalization onto the surface of NaYF4:Yb, Tm-based LNPs is demonstrated via an in situ tandem process. The achieved nanohybrids exhibit enhanced water-dispersibility and cellular compatibility. Structural integrity and grafting confirmation of the constructed nanoconjugates are successfully made by combined studies of NMR, Fourier transform infrared (FTIR), fluorescence spectroscopy, and X-ray diffraction (XRD). The size and morphology of the hybrid nanomaterials in solution are determined by dynamic light scattering (DLS) spectroscopy and high-resolution transmission electron microscopy (HR-TEM), and the photothermal activity is probed for their potential theranostic applications.","PeriodicalId":205,"journal":{"name":"Macromolecular Rapid Communications","volume":" ","pages":"e00427"},"PeriodicalIF":4.2,"publicationDate":"2025-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144599006","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

Accessing Equilibrious Modulation of Activity, Molecular Weight, and Tacticity for Syndiotactic Propylene Polymerization at Industrial Relevant Temperatures via Rational Design of Single-Site Catalysts. 通过合理设计单位点催化剂，在工业相关温度下获得顺规丙烯聚合的活性、分子量和策略的平衡调制。

IF 4.2 3区化学

Macromolecular Rapid Communications Pub Date : 2025-07-10 DOI: 10.1002/marc.202500517

Yong-Qing Li, Yu-Qing Peng, Gui-Ping Cao, Yu-Cai Cao

{"title":"Accessing Equilibrious Modulation of Activity, Molecular Weight, and Tacticity for Syndiotactic Propylene Polymerization at Industrial Relevant Temperatures via Rational Design of Single-Site Catalysts.","authors":"Yong-Qing Li, Yu-Qing Peng, Gui-Ping Cao, Yu-Cai Cao","doi":"10.1002/marc.202500517","DOIUrl":"https://doi.org/10.1002/marc.202500517","url":null,"abstract":"Single-site catalysts (SSC) have been widely applied for olefin coordination polymerization to generate high performance polyolefins. However, regular optimization of the structures of SSC would only enhance certain polymerization behaviors, such as polymerization activity, molecular weight, and syndiotacticity ([rrrr]) of syndiotactic polypropylene (sPP). In this work, we report the synthesis of Zr complexes Zr1, Zr2, and Zr3 bearing 3,5-tBu2, 2-Me, and 2-iPr substituted phenyl moiety and their application to syndiotactic propylene polymerization at industrial relevant temperatures based on the gradient modulation strategy of cyclopentadienyl-fluorenyl (Cp-Flu) ansa-zirconocenes. Equilibrious modulation of activity, molecular weight, and syndiotacticity was successfully achieved at industrial relevant temperatures. Zr2 exhibited equilibrious polymerization performance with high activity of 2.1 × 107 and 4.5 × 107 g/(mol·h), high molecular weight of 60.2 × 104 and 36.5 × 104, and high syndiotacticity of 87.1% and 80.6% at 30°C and 50°C, respectively. Tensile tests and hysteresis experiments of sPPs were performed to establish a relationship between mechanical and elastic properties with syndiotacticity and molecular weight of sPPs. Demonstrated by the molecular structures and topographic steric maps of ansa-zirconocenes, the equilibrious polymerization performance of Zr2 and Zr3 is attributed to the remote modulation of 2-substituted aryl groups, rather than the steric hindrance around the Zr center.","PeriodicalId":205,"journal":{"name":"Macromolecular Rapid Communications","volume":" ","pages":"e00517"},"PeriodicalIF":4.2,"publicationDate":"2025-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144599002","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

Multifunctional Electroactive 3D-Printed Scaffolds with Polypyrrole-Based Coatings for Biomedical Applications. 生物医学应用的多功能电活性3d打印支架与聚吡咯基涂层。

IF 4.2 3区化学

Macromolecular Rapid Communications Pub Date : 2025-07-10 DOI: 10.1002/marc.202500246

Felipe Olate-Moya, Francisco Fernández-Gil, Luis Solano, Luis Córdova, Humberto Palza

{"title":"Multifunctional Electroactive 3D-Printed Scaffolds with Polypyrrole-Based Coatings for Biomedical Applications.","authors":"Felipe Olate-Moya, Francisco Fernández-Gil, Luis Solano, Luis Córdova, Humberto Palza","doi":"10.1002/marc.202500246","DOIUrl":"https://doi.org/10.1002/marc.202500246","url":null,"abstract":"Several intrinsic electroconductive polymers have been studied for tissue engineering and biomedical applications, as they can mimic the cell microenvironment of some electroactive tissues and have body-sensing capacity. However, these polymers often lack good processability and biocompatibility, complicating the development of appropriate biomaterials or devices such as cell scaffolds and biosensors. To overcome these issues, a two-step method was introduced to coat 3D-printed poly (ε-caprolactone) (PCL) scaffolds with intrinsic electroconductive polypyrrole (PPy) and gelatin (GEL). Compared to pure 3D-printed PCL, the coated hybrid scaffolds exhibited 12 orders of magnitude higher electrical conductivity, ionic conduction capacity, rougher topography, and even a 5% higher compressive strength while maintaining the main properties of PCL. The proliferation of human mesenchymal stem cells (hMSCs) was 13% higher in the PPy-coated scaffolds after 14 days, further exhibiting rounded cell morphologies, unlike the flattened shapes seen on the PCL controls. The high conductivity of the scaffolds produced by our two-step methodology further allows their use as electrodes for electromyogram measurement and piezoresistive sensors. Noteworthy, the coated biomaterials can be used as a triboelectric nanogenerator (TENG), achieving an output power density of 4-6 mW m⁻2 under the mechanical contact-separation stimulus. These findings highlight the potential application of our approach for developing multifunctional electroactive PPy-coated PCL biomaterials for tissue engineering, biosensing, piezoresistive sensors, and TENG.","PeriodicalId":205,"journal":{"name":"Macromolecular Rapid Communications","volume":" ","pages":"e00246"},"PeriodicalIF":4.2,"publicationDate":"2025-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144599004","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

Progress on the Structure and Application of Porous Polyurethane Materials. 多孔聚氨酯材料的结构与应用研究进展。

IF 4.2 3区化学

Macromolecular Rapid Communications Pub Date : 2025-07-10 DOI: 10.1002/marc.202500294

Xin-Long Zhou, Xin-Yue Wei, Yong-Yue Peng, Xiao-Han Wang, Yi Liang, Shu-Yuan Chen, Xiao-Ting Niu

{"title":"Progress on the Structure and Application of Porous Polyurethane Materials.","authors":"Xin-Long Zhou, Xin-Yue Wei, Yong-Yue Peng, Xiao-Han Wang, Yi Liang, Shu-Yuan Chen, Xiao-Ting Niu","doi":"10.1002/marc.202500294","DOIUrl":"https://doi.org/10.1002/marc.202500294","url":null,"abstract":"The investigation of porous materials is pivotal to the advancement of science and technology. Polyurethane, a versatile and high-performance material, holds extensive application potential across various industries. This exceptional polymer exhibits unique chemical structures and superior performance characteristics, earning it the moniker of \"Transformers\" in the material world. Porous materials are characterized by their pore structure, which confers advantages such as high porosity, large specific surface area, low thermal conductivity, and lightweight properties. Porous polyurethane materials integrate the attributes of polyurethane with a porous architecture, demonstrating significant potential for diverse applications. This article first delineates the structure and properties of porous polyurethane materials, followed by an overview of synthesis methods including solution casting, sacrificial templating, phase separation, freeze drying, gas foaming method, electrospinning, and 3D printing method. This paper highlights the research status of on porous polyurethane materials in rigid and flexible foams, smart temperature-controlled textiles, biomedicine, electrochemistry, and oil-water separation, as well as electromagnetic shielding and piezoresistive sensors. Finally, this article addresses the challenges encountered in the preparation and application of porous polyurethane materials and provides insights into prospective development trends.","PeriodicalId":205,"journal":{"name":"Macromolecular Rapid Communications","volume":" ","pages":"e00294"},"PeriodicalIF":4.2,"publicationDate":"2025-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144599005","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

Polyesteracetals via TBD Catalyzed Ring-Opening Polymerization. TBD催化开环聚合聚酯缩醛。

IF 4.2 3区化学

Macromolecular Rapid Communications Pub Date : 2025-07-07 DOI: 10.1002/marc.202500273

Jakob Meyer, Natalie E Göppert, Leanne M Stafast, Christine Weber, Ulrich S Schubert

{"title":"Polyesteracetals via TBD Catalyzed Ring-Opening Polymerization.","authors":"Jakob Meyer, Natalie E Göppert, Leanne M Stafast, Christine Weber, Ulrich S Schubert","doi":"10.1002/marc.202500273","DOIUrl":"https://doi.org/10.1002/marc.202500273","url":null,"abstract":"Polyacetals represent a novel category of degradable polymers, exhibiting remarkable potential for utilization in biomedical and pharmaceutical applications due to their controllable degradation behavior under physiological conditions. The organocatalyst 1,5,7-triazabicyclo[4.4.0]dec-5-ene (TBD) was used for the ring-opening polymerization (ROP) of 2-methyl-1,3-dioxane-4-one. Whereas standard reaction conditions, suitable for lactide polymerization resulted in a polyester due to loss of acetaldehyde, the amount of esteracetal repeating units could be tailored by the polymerization conditions. Performing the ROP at -35°C at a monomer concentration of 15 mol L-1 maximized the incorporation of labile acetal groups to 50 mol%. The versatility of this polymerization system was demonstrated through the successful initiation with a wide range of alcohols, including 1-pyrenemethanol for end-group analysis via size exclusion chromatography with UV detection and matrix-assisted laser desorption-ionization mass spectrometry, as well as various macroinitiators such as mono- and bifunctional poly(ethylene glycol)s, poly(2-ethyl-2-oxazoline), poly(2-n-nonyl-2-oxazoline), and poly(2-iso-propyl-2-oxazoline), thereby facilitating the synthesis of well-defined block copolymers.","PeriodicalId":205,"journal":{"name":"Macromolecular Rapid Communications","volume":" ","pages":"e00273"},"PeriodicalIF":4.2,"publicationDate":"2025-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144582693","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

Recent Advances in Machine Learning-Assisted Design and Development of Polymer Materials. 机器学习辅助高分子材料设计与开发的最新进展。

IF 4.2 3区化学

Macromolecular Rapid Communications Pub Date : 2025-07-07 DOI: 10.1002/marc.202500361

Longyu Ma, Wenjing Li, Jian Yuan, Jian Zhu, Yan Wu, Hanliang He, Xiangqiang Pan

引用次数: 0

Halochromism in the UV-Vis-NIR Region of Polymers Incorporating Overcrowded Bistricyclic Aromatic Enes. 含过度拥挤双环芳烃聚合物的紫外-可见-近红外区荧光性。

IF 4.2 3区化学

Macromolecular Rapid Communications Pub Date : 2025-07-07 DOI: 10.1002/marc.202500319

Kohei Yamada, Yohei Adachi, Shota Terao, Yuto Hattori, Joji Ohshita

{"title":"Halochromism in the UV-Vis-NIR Region of Polymers Incorporating Overcrowded Bistricyclic Aromatic Enes.","authors":"Kohei Yamada, Yohei Adachi, Shota Terao, Yuto Hattori, Joji Ohshita","doi":"10.1002/marc.202500319","DOIUrl":"https://doi.org/10.1002/marc.202500319","url":null,"abstract":"Bistricyclic aromatic enes (BAEs) are known for their fascinating ability to change color in response to stimuli like heat or mechanical force. However, as this phenomenon is typically limited to the solid state, such as crystals, their incorporation into versatile polymer materials has remained to be investigated. To explore their potential in soft materials, we incorporated a BAE unit into the flexible main chains of poly(methyl acrylate) (PMA) and polyurethane (PU). We then investigated the chromic behavior of these polymers to mechanical and chemical stimuli. Although they did not change color when stretched, they revealed a striking halochromism. The polymer films, initially absorbing dominantly in the UV region, remained unchanged with acetic acid but underwent a dramatic transformation upon exposure to trifluoroacetic acid, causing their significant absorption band shifts into the visible and near-infrared (NIR) regions. DFT calculations suggest this halochromism originates from the protonation of the BAE unit. Furthermore, this process was found to be reversible, as the addition of an amine restored the original color. These findings highlight the potential of these BAE-containing polymers for advanced applications like sensors or NIR-light-responsive materials.","PeriodicalId":205,"journal":{"name":"Macromolecular Rapid Communications","volume":" ","pages":"e00319"},"PeriodicalIF":4.2,"publicationDate":"2025-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144582742","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