Macromolecular Rapid Communications最新文献_第2页

Front Cover: Adhesion of Hydrogels to Fluoropolymers by Electrophoretic Fluoropolymer Coating 封面：电泳含氟聚合物涂层的水凝胶与含氟聚合物的粘附

IF 4.1 3区化学

Macromolecular Rapid Communications Pub Date : 2026-10-20 DOI: 10.1002/marc.70431

Yoshiaki Kobayashi, Tatsumi Shigenari, Syuuhei Komatsu, Akihiko Kikuchi, Taka-Aki Asoh

引用次数: 0

Superior High-Temperature Capacitive Energy Storage in Dielectric Random Copolymer by Constructing Staggered Barriers 构建交错势垒在介电无规共聚物中的优越高温电容储能。

IF 4.1 3区化学

Macromolecular Rapid Communications Pub Date : 2026-10-20 Epub Date: 2026-09-01 DOI: 10.1002/marc.70370

Xinru Yang, Yang Feng, Yida Lu, Yi Qiao, Yijun Zhen, Anquan Xue, Shengtao Li

{"title":"Superior High-Temperature Capacitive Energy Storage in Dielectric Random Copolymer by Constructing Staggered Barriers","authors":"Xinru Yang, Yang Feng, Yida Lu, Yi Qiao, Yijun Zhen, Anquan Xue, Shengtao Li","doi":"10.1002/marc.70370","DOIUrl":"10.1002/marc.70370","url":null,"abstract":"<div>\u0000 \u0000 Dielectric polymers with high glass transition temperatures (Tg) are widely employed in capacitive energy storage applications for electronic equipment and power systems. However, polyetherimide (PEI) suffers from significant leakage current and a pronounced increase in conductivity loss at high temperatures, which prominently restricts its operational reliability under extreme conditions. In this work, an all-organic strategy is proposed by random blocking the 2, 2-Bis [4-(4-aminophenoxy) phenyl] propane (BAPP) into the PEI backbones. The staggered potential barriers between distinct chains create local electronic trap states and increase the energy barrier for trapped carriers to escape. Furthermore, the incorporation of the BAPP segments effectively decreases the interchain spacing and fractional free volume (FFV). Experimental studies and density functional theory (DFT) calculations reveal that a large number of deep traps combined with a reduced FFV, enhance electron capture capability and restrict charge transport. As a result, the random copolymer with 50 mol% BAPP segments (C50PEI) exhibits superior high-temperature capacitive performance, delivering an exceptional discharged energy density (Ue) of 4.68 J/cm3 with a charge–discharge efficiency (𝜂) exceeding 90% at 200°C. This work provides an all-organic design strategy for the development of dielectric capacitors under extreme high-temperature conditions.\u0000 </div>","PeriodicalId":205,"journal":{"name":"Macromolecular Rapid Communications","volume":"47 20","pages":""},"PeriodicalIF":4.1,"publicationDate":"2026-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148872250","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

Digital Printing of Photoreversible Protective Films 光可逆保护膜的数码印刷。

IF 4.1 3区化学

Macromolecular Rapid Communications Pub Date : 2026-10-20 Epub Date: 2026-08-17 DOI: 10.1002/marc.70408

Morris Wolf, Alper Balkan, René Schneider, Stefan Mommer, Yves Leterrier, Mark W. Tibbitt

{"title":"Digital Printing of Photoreversible Protective Films","authors":"Morris Wolf, Alper Balkan, René Schneider, Stefan Mommer, Yves Leterrier, Mark W. Tibbitt","doi":"10.1002/marc.70408","DOIUrl":"10.1002/marc.70408","url":null,"abstract":"Temporary protective coatings are widely used in modern production processes. Yet, while highly desirable, their high-resolution printing and stimuli-responsive removal remain challenging. To address this need, we introduce acrylate-based photopolymerized and photoreversible protective films that can be applied using aerosol jet printing. The acrylate films were formulated using aqueous solutions of a photocleavable diacrylate cross-linker and acrylated macromers. To form films, the precursor solution was cured with 405 nm light for 120 s. The films were subsequently removed via photodegradation upon exposure to 365 nm light within minutes to hours depending on film thickness and light intensity. The addition of a polyethyleneimine-based adhesion promoter, Lupasol WF, led to significant improvement of adhesion to industry-relevant surfaces. Quantification using a rheometer in extensional mode showed a fracture energy of the films 3.25x higher than without the adhesion promoter. The protective films were applied using aerosol jet printing, enabling a feature resolution below 30 µm and a spatially selective treatment of metallic surfaces with Paris oxide. These results demonstrate how photopolymerized and photoreversible polymer networks enable temporary protective coatings in industry-relevant applications.","PeriodicalId":205,"journal":{"name":"Macromolecular Rapid Communications","volume":"47 20","pages":""},"PeriodicalIF":4.1,"publicationDate":"2026-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/marc.70408","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148786356","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

Adhesion of Hydrogels to Fluoropolymers by Electrophoretic Fluoropolymer Coating 电泳含氟聚合物涂层水凝胶与含氟聚合物的粘附性。

IF 4.1 3区化学

Macromolecular Rapid Communications Pub Date : 2026-10-20 Epub Date: 2026-08-28 DOI: 10.1002/marc.70414

Yoshiaki Kobayashi, Tatsumi Shigenari, Syuuhei Komatsu, Akihiko Kikuchi, Taka-Aki Asoh

{"title":"Adhesion of Hydrogels to Fluoropolymers by Electrophoretic Fluoropolymer Coating","authors":"Yoshiaki Kobayashi, Tatsumi Shigenari, Syuuhei Komatsu, Akihiko Kikuchi, Taka-Aki Asoh","doi":"10.1002/marc.70414","DOIUrl":"10.1002/marc.70414","url":null,"abstract":"Although hydrogels are widely used in bio-integrated devices and soft systems, their robust adhesion to polymers with low surface energies remains a fundamental challenge. Fluoropolymers such as polytetrafluoroethylene (PTFE) are notoriously difficult to adhere to because of their chemical inertness and non-wetting surfaces. In this study, we demonstrate that water-stable adhesion between hydrogels and fluoropolymers can be achieved by engineering interfacial dipole–dipole interactions. In particular, a fluoropolymer coating was deposited on hydrogel surfaces via the electrophoretic deposition of an anionic fluoro-copolymer, resulting in a polyion-complexed interfacial layer. The coated hydrogels exhibited stable adhesion to PTFE, even in water. Notably, adhesion to PTFE displayed an on/off transition with slight changes in copolymer composition, while adhesion to other substrates remained unaffected. This unique composition sensitivity revealed that adhesion to PTFE required exceeding the critical surface density of fluorinated dipoles, which distinguishes it from conventional wetting-driven adhesion mechanisms. Consequently, this study highlights dipole–dipole interactions as a decisive design principle for bonding hydrogels to chemically inert fluoropolymers.","PeriodicalId":205,"journal":{"name":"Macromolecular Rapid Communications","volume":"47 20","pages":""},"PeriodicalIF":4.1,"publicationDate":"2026-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/marc.70414","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148838538","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

Bio-Pd-Mediated In Situ Polymerization of Conjugated Microporous Polymers on Bacterial Surfaces for Biofilm Eradication and Infected Wound Healing. 生物pd介导的细菌表面共轭微孔聚合物原位聚合用于生物膜清除和感染伤口愈合。

IF 4.1 3区化学

Macromolecular Rapid Communications Pub Date : 2026-10-15 DOI: 10.1002/marc.70460

Yajie Long, Mengpan Zhang, Ling Li, Yanjie Shi, Yuze Wang, Meiqi Li, Yuxin Ren, Yanli Tang

{"title":"Bio-Pd-Mediated In Situ Polymerization of Conjugated Microporous Polymers on Bacterial Surfaces for Biofilm Eradication and Infected Wound Healing.","authors":"Yajie Long, Mengpan Zhang, Ling Li, Yanjie Shi, Yuze Wang, Meiqi Li, Yuxin Ren, Yanli Tang","doi":"10.1002/marc.70460","DOIUrl":"https://doi.org/10.1002/marc.70460","url":null,"abstract":"Bacterial biofilms exhibit remarkable resistance to conventional antibiotics and host immune responses, posing a major challenge for the treatment of bacterial infections and infected wounds. Herein, we propose a Bio‑Pd‑driven in‑situ polymerization strategy on bacterial surfaces to fabricate a cationic conjugated microporous polymer (CCMPM) that achieves synergistic antibacterial and antibiofilm performance. A mannose-functionalized monomer and a quaternary ammonium-functionalized monomer were rationally designed to enhance bacterial targeting, water solubility, and bacterial membrane affinity. Under Bio-Pd catalysis, the two monomers underwent Sonogashira coupling directly on bacterial surfaces to generate CCMPM in situ. The intimate interactions between CCMPM and bacterial cells effectively shortened the diffusion distance of reactive oxygen species (ROS), thereby enhancing photodynamic antibacterial efficacy, while the cationic polymer coating inhibited bacterial adhesion and biofilm formation. Benefiting from these synergistic effects, the in situ polymerized CCMPM achieved complete eradication of Escherichia coli under light irradiation and efficiently eliminated biofilm-embedded bacteria. Furthermore, CCMPM significantly accelerated infected wound healing and promoted tissue regeneration without inducing obvious systemic toxicity. This work establishes Bio-Pd-mediated in situ polymerization as an effective strategy for constructing functional conjugated microporous polymers on bacterial surfaces for antibacterial and antibiofilm applications.","PeriodicalId":205,"journal":{"name":"Macromolecular Rapid Communications","volume":" ","pages":"e70460"},"PeriodicalIF":4.1,"publicationDate":"2026-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149190402","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

Control of Chain Transfer by Tailored Metal-Phenyl π-Interactions in Bis(Imino)Pyridyl Cobalt-Catalyzed Ethylene Polymerization. 双（亚胺）吡啶基钴催化乙烯聚合中金属-苯基π-相互作用对链转移的控制。

IF 4.1 3区化学

Macromolecular Rapid Communications Pub Date : 2026-10-14 DOI: 10.1002/marc.70458

Heng Gao, Chong Wang, Xieyi Xiao, Chunyu Feng, Handou Zheng, Aoxiang Liu, Haiyang Gao

{"title":"Control of Chain Transfer by Tailored Metal-Phenyl π-Interactions in Bis(Imino)Pyridyl Cobalt-Catalyzed Ethylene Polymerization.","authors":"Heng Gao, Chong Wang, Xieyi Xiao, Chunyu Feng, Handou Zheng, Aoxiang Liu, Haiyang Gao","doi":"10.1002/marc.70458","DOIUrl":"https://doi.org/10.1002/marc.70458","url":null,"abstract":"In bis(imino)pyridyl iron/cobalt-catalyzed ethylene polymerization, broad and bimodal molecular weight distributions of polyethylenes (PEs) are often produced because of two different chain transfer pathways. In this paper, a combined theoretical and experimental study demonstrates how weak attractive metal-phenyl π-interactions can favor β-H transfer to ethylene over chain transfer to Al to achieve a unimodal distribution. A series of bis(imino)pyridyl cobalt complexes with a substituted 8-(p-R-phenyl)naphthylamine (R = OMe, Me, CF3) were designed and synthesized for ethylene polymerization. The intramolecular Co-phenyl π-interactions between the capping aryl groups and the cobalt metal are clearly identified in \"half-sandwich\" bis(imino)pyridyl cobalt complexes. Ethylene polymerization results show that bis(imino)pyridyl cobalt catalyst with an electron-donating methoxy group can produce low-molecular-weight polyethylene with a unimodal distribution. This control of β-H transfer to ethylene monomer is promoted by weak Co-phenyl interactions, operative only for the case of sufficiently electron-rich aryls (R = OMe) and low temperatures (-10°C-30°C).","PeriodicalId":205,"journal":{"name":"Macromolecular Rapid Communications","volume":" ","pages":"e70458"},"PeriodicalIF":4.1,"publicationDate":"2026-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149178224","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

Salt Spray Resistant Silver-Plated Graphite Flake/Polyurethane Foam for Efficient Electromagnetic Interference Shielding. 耐盐雾镀银石墨片/聚氨酯泡沫，用于高效电磁干扰屏蔽。

IF 4.1 3区化学

Macromolecular Rapid Communications Pub Date : 2026-10-12 DOI: 10.1002/marc.70452

Yang Chen, Liang He, Linqian Yin, Mengchen Wang, Mingyang Zhang, Wen Zhao, Wencai Wang

{"title":"Salt Spray Resistant Silver-Plated Graphite Flake/Polyurethane Foam for Efficient Electromagnetic Interference Shielding.","authors":"Yang Chen, Liang He, Linqian Yin, Mengchen Wang, Mingyang Zhang, Wen Zhao, Wencai Wang","doi":"10.1002/marc.70452","DOIUrl":"https://doi.org/10.1002/marc.70452","url":null,"abstract":"Porous polymer-matrix electromagnetic interference (EMI) shielding composites can effectively lower density, and their multiple interfaces facilitate microwave attenuation by enhancing the internal scattering of electromagnetic waves. However, owing to the large specific surface area originating from the porous structure, such materials generally suffer from poor salt spray corrosion resistance, which limits their applications in coastal and marine service scenarios. Here, silver-coated polydopamine-modified graphite flake (Ag/pG) was first prepared as the conductive filler. Subsequently, the Ag/pG was further surface modified with γ-aminopropyltriethoxysilane (KH550). Finally, the modified Ag/pG was incorporated into the polyurethane (PU) foam matrix via a co-foaming process, fabricating porous EMI shielding composites with good salt spray corrosion resistance. The KH550 could form an organosilane protective layer on the silver surface, passivating the metal surface and suppressing the corrosion process. Meanwhile, the amino moieties in KH550 could chemically bond with PU macromolecular chains, effectively improving the interfacial compatibility. Such dual functions synergistically enhanced the salt spray corrosion resistance of the composites. After eight cycles of salt spray corrosion testing, the prepared composites maintained EMI shielding effectiveness above 90 dB with negligible attenuation. This study offers a facile design strategy toward high-performance EMI shielding materials applicable to complex and harsh service environments.","PeriodicalId":205,"journal":{"name":"Macromolecular Rapid Communications","volume":" ","pages":"e70452"},"PeriodicalIF":4.1,"publicationDate":"2026-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149163834","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

Color Alleviation in Hybrid Electrospun-Electrosprayed Magnetic Paper. 静电纺-静电喷涂复合磁纸的减色性能。

IF 4.1 3区化学

Macromolecular Rapid Communications Pub Date : 2026-10-12 DOI: 10.1002/marc.70454

Stefanos Savva, Andreas Hadjianastasi, Viktoria Theodorou, Kyriaki Louka, Vlad Mircea Socoliuc, Rodica Paula Turcu, Septimiu Cassian Tripon, Theodora Krasia-Christoforou

{"title":"Color Alleviation in Hybrid Electrospun-Electrosprayed Magnetic Paper.","authors":"Stefanos Savva, Andreas Hadjianastasi, Viktoria Theodorou, Kyriaki Louka, Vlad Mircea Socoliuc, Rodica Paula Turcu, Septimiu Cassian Tripon, Theodora Krasia-Christoforou","doi":"10.1002/marc.70454","DOIUrl":"https://doi.org/10.1002/marc.70454","url":null,"abstract":"Chromatic alleviation on magnetic paper is achieved through the sequential application of electrospinning and electrospraying techniques. By embedding the brown-colored oleic acid-coated superparamagnetic Fe3O4 nanoparticles (NPs) within polyethylene oxide/poly(L-lactide) (PEO/PLLA) blended microparticles via electrospraying and further integrating the latter within electrospun cellulose acetate microfibers, a composite material was engineered to exhibit both magnetic responsiveness and optical neutrality. The process enabled homogeneous distribution of magnetic microparticles without compromising the structural or visual integrity of the fibrous network. The resulting hybrid material demonstrates homogeneity in respect to its magnetic properties, superparamagnetic behaviour, and ability to be attracted by an external magnet, while maintaining the appearance of conventional white paper. The presented approach involving the integration of magnetic additives into visually neutral, fibrous substrates, unlocks new opportunities toward the development of multifunctional, magnetically active substrates for secure document technologies and related fields.","PeriodicalId":205,"journal":{"name":"Macromolecular Rapid Communications","volume":" ","pages":"e70454"},"PeriodicalIF":4.1,"publicationDate":"2026-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149163885","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

Biodegradable Hybrid Scaffolds Integrating Synergistic Chemical and NIR-II Photothermal Antibacterial Activity. 整合协同化学和NIR-II光热抗菌活性的可生物降解杂化支架。

IF 4.1 3区化学

Macromolecular Rapid Communications Pub Date : 2026-10-10 DOI: 10.1002/marc.70455

Xueping Kong, Zhaoyi Wang, Tianyi Zheng, Tong Zhou, Ying Wang

{"title":"Biodegradable Hybrid Scaffolds Integrating Synergistic Chemical and NIR-II Photothermal Antibacterial Activity.","authors":"Xueping Kong, Zhaoyi Wang, Tianyi Zheng, Tong Zhou, Ying Wang","doi":"10.1002/marc.70455","DOIUrl":"https://doi.org/10.1002/marc.70455","url":null,"abstract":"Biodegradable orthopedic materials have attracted increasing attention due to their excellent biocompatibility, controllable degradation behavior, and capacity for osteointegration, enabling effective bone regeneration while eliminating the need for secondary implant-removal surgery. However, bacterial colonization and subsequent dense biofilm formation on implanted scaffolds often lead to persistent infections, posing a major barrier to clinical translation. The development of antibacterial-functionalized biodegradable scaffolds is therefore crucial for advancing next-generation orthopedic implants. Herein, we report the fabrication of a biodegradable hybrid scaffold exhibiting synergistic chemical and second near-infrared (NIR-II) photothermal antibacterial activity. The scaffold was fabricated via a precisely controlled thermally induced phase separation (TIPS) technique, integrating a poly(lactic acid)-poly(ethylene glycol)-poly(lactic acid) (PELA) triblock copolymer, hydroxyapatite (HA), and mesoporous polydopamine microspheres modified with silver nanoparticles (Ag-mPDA). The biodegradable PELA matrix establishes an optimal mechanical microenvironment for bone regeneration, while HA incorporation enhances scaffold osteoconductivity. Notably, the Ag-mPDA nanoparticles exhibit a dual-mode antibacterial action, combining sustained Ag+ release with NIR-II laser-triggered photothermal effect. This synergistic chemo-photothermal antibacterial strategy effectively combats implant-associated bacterial infections, offering a promising and versatile platform for smart biodegradable orthopedic implants.","PeriodicalId":205,"journal":{"name":"Macromolecular Rapid Communications","volume":" ","pages":"e70455"},"PeriodicalIF":4.1,"publicationDate":"2026-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149163723","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

Gamma Irradiation-Based Free Radical Grafting of N-Hydroxyethyl Acrylamide onto Poly[(R)-3-hydroxybutyrate]. γ辐照自由基接枝n-羟乙基丙烯酰胺在聚[(R)-3-羟基丁酸盐]上的研究。

IF 4.1 3区化学

Macromolecular Rapid Communications Pub Date : 2026-10-08 DOI: 10.1002/marc.70453

Cole Walchle, Céline Chaléat, Paul Lant, Bronwyn Laycock, Steven Pratt, Samuel Lawless

{"title":"Gamma Irradiation-Based Free Radical Grafting of N-Hydroxyethyl Acrylamide onto Poly[(R)-3-hydroxybutyrate].","authors":"Cole Walchle, Céline Chaléat, Paul Lant, Bronwyn Laycock, Steven Pratt, Samuel Lawless","doi":"10.1002/marc.70453","DOIUrl":"https://doi.org/10.1002/marc.70453","url":null,"abstract":"This work demonstrates successful grafting of N-hydroxyethyl acrylamide (HEAA) onto poly[(R)-3-hydroxybutyrate] (P[(R)-3HB]), up to 156 wt.% using 60Co gamma irradiation (10.1 kGy) and a 1:4 P[(R)-3HB]:HEAA molar ratio in ethyl acetate. The resulting N-hydroxyethyl acrylamide-grafted poly[(R)-3-hydroxybutyrate] (P3HB-HEAA) was comprehensively characterized using FTIR, NMR, SEM, DSC, TGA/DTG, tensile testing, and water uptake, and exhibited striking property changes relative to the native polymer. The modified material showed a Tg of 124°C, reduced melting enthalpy (ΔHm = 12 J/g), increased Td,10 and Td,50 of 260°C and 340°C, respectively, increased elongation at break (ɛ = 65%), increased toughness (by 378%), exceptional water absorption capacity (610 wt.%), a markedly less ordered surface structure compared to the starting materials. These changes indicate formation of a less crystalline, highly hygroscopic, hydrogel-like system. HEAA grafting generated a biphasic architecture comprising a semicrystalline, structurally robust, P[(R)-3HB] backbone coupled with an amorphous, hydrogel-like HEAA surface layer, yielding a potentially biodegradable polymer with enhanced hydration capacity. The structure retains structural integrity while enabling substantial water uptake properties not accessible with either component alone. Combining mechanical strength with tuneable hydration behavior, HEAA-grafted P[(R)-3HB] expands the functional and commercial potential of P[(R)-3HB] into applications requiring simultaneous structural integrity, controlled swelling, and potential biocompatibility.","PeriodicalId":205,"journal":{"name":"Macromolecular Rapid Communications","volume":" ","pages":"e70453"},"PeriodicalIF":4.1,"publicationDate":"2026-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149134355","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