Sebastian Seitel, Nora Fribiczer, Sebastian Seiffert
{"title":"Establishing Structure-Property Relationships in Model Amphiphilic Polymer Co-Networks","authors":"Sebastian Seitel, Nora Fribiczer, Sebastian Seiffert","doi":"10.1002/macp.70303","DOIUrl":"https://doi.org/10.1002/macp.70303","url":null,"abstract":"<p>Amphiphilic polymer co-networks (APCNs) offer a versatile platform as materials for numerous applications, yet their rational design requires a fundamental understanding of the complex interplay between molecular architecture and macroscopic properties. Here, we present a well-defined model platform based on the heterocomplementary coupling of tetra-PEG and tetra-PCL star polymers. This system enables the systematic exploration of how synthesis conditions govern network formation, mechanical response, and transport behavior. Network properties were characterized through swelling studies and rheology, while the diffusion of star polymers was probed using combined Fluorescence Recovery After Photobleaching (FRAP) and Forced Rayleigh Scattering (FRS). Complementary Dynamic Light Scattering (DLS) experiments with diffusive probes enabled the extraction of diffusion-governing length scales, such as the network correlation length and the hydrodynamic screening length. This multi-methodological approach establishes quantitative structure–property–transport relationships and highlights the interplay between synthesis, network architecture, and functional properties. The PEG–PCL model APCN platform thus provides a predictive framework for the rational design of tailor-made amphiphilic materials with tunable mechanics and transport characteristics.</p>","PeriodicalId":18054,"journal":{"name":"Macromolecular Chemistry and Physics","volume":"227 14","pages":""},"PeriodicalIF":2.8,"publicationDate":"2026-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/macp.70303","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148533963","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}
{"title":"Atomistic Simulations of Betaine-Based Ionic Liquids Composite With Nafion Polymer Membranes","authors":"Sonia Yadav, Anurag Prakash Sunda","doi":"10.1002/macp.70304","DOIUrl":"https://doi.org/10.1002/macp.70304","url":null,"abstract":"<div>\u0000 \u0000 <p>With the exponential increase in demand for energy due to population growth and technological advancement, a drive to develop sustainable alternatives to traditional electrolytes has emerged at the cost of efficiency. Polymer electrolyte fuel cells are the best choice to generate the desired power in static and portable electrochemical devices, where Nafion polymer membranes serve as one of the best choice of electrolyte. Ionic liquid (IL) doped membrane can serve as a good alternative to meet performance and sustainability. This work focuses on Betaine-based Ionic Liquids composite with Nafion to address the compatibility. The structure properties were analyzed by performing classical molecular dynamics at 300 and 393 K. Radial distribution function profile and spatial density maps reveal strong ionic interactions of [C4BET] cations with the sulfonate group of Nafion membrane. The higher ionic mobility at 393 K for [C4BET][DCA] IL compared to [C4BET][TFSI IL] suggests that it can be a very good composite for Nafion membrane toward the development of new biodegradable electrolytes.</p>\u0000 </div>","PeriodicalId":18054,"journal":{"name":"Macromolecular Chemistry and Physics","volume":"227 14","pages":""},"PeriodicalIF":2.8,"publicationDate":"2026-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148533966","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}
Maria Kowalewska, Dominik Wołosz, Magdalena Mazurek-Budzyńska
{"title":"From Amino Acids to Nature-Inspired Polyurethane Materials: A Review of Synthesis Pathways, Structure–Property Relationships, and Potential Applications","authors":"Maria Kowalewska, Dominik Wołosz, Magdalena Mazurek-Budzyńska","doi":"10.1002/macp.70295","DOIUrl":"https://doi.org/10.1002/macp.70295","url":null,"abstract":"<div>\u0000 \u0000 <p>Amino acid-based polyurethanes (PUs) belong to a versatile group of biomaterials with extensive applications. Their structure can be adjusted by modification of hard and soft segments, side groups, and chain extenders, allowing precise control over their behavior, performance, and degradation rates. Incorporating nature-inspired amino acid derivatives into the structure enhances biocompatibility and makes them more susceptible to enzymatic and hydrolytic breakdown. Recent studies have revealed varied materials from durable elastomers to stimuli-responsive nanoparticles. These moieties can be incorporated through typical or non-isocyanate pathways (including polycondensation or polyaddition reactions). It demonstrates a significant potential of amino acids and their derivatives to be used as chain extenders or precursors during PU production, advancing the development of novel materials tailored to specific applications. This review comprehensively describes the preparation of conventional PU from amino acid-based diisocyanates and/or aliphatic/aromatic chain extenders, as well as their non-isocyanate alternatives. Significant emphasis is placed on the elucidation of structure-property behaviors and discussion of the products' properties related to their potential applications.</p>\u0000 </div>","PeriodicalId":18054,"journal":{"name":"Macromolecular Chemistry and Physics","volume":"227 14","pages":""},"PeriodicalIF":2.8,"publicationDate":"2026-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148533626","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}
{"title":"MOCA-Based Poly(Urethane–Urea) Elastomers With High Stretchability, Strength, and Self-Healing via Synergistic Dynamic Bonds","authors":"Xiangrong Zheng, Junqing Li, Lindan Gong, Yihao Guo, Aohui Qin, Zelin Zhu, Guanyu Di, Yining Huang, Xingbao Gao, Lu-an Fan","doi":"10.1002/macp.70301","DOIUrl":"https://doi.org/10.1002/macp.70301","url":null,"abstract":"<div>\u0000 \u0000 <p>Simultaneously achieving high strength and efficient self-healing in a single material remains a fundamental challenge in the field of elastomeric materials. In this study, self-healing poly(urethane-urea) (PU) elastomers were successfully prepared through the strategic incorporation of both rigid MOCA (4,4'-methylenebis(2-chloroaniline)) structures and thermo-reversible oxime-urethane bonds into the main chains, coupled with dynamic zinc-ion coordination. Due to the synergistic interactions among hydrogen bonding networks, oxime-amino ester bonds, and metal-ligand bonds, PU elastomers exhibited high tensile strength (8.07 MPa), elongation at break (771.72%), and healing efficiency (92.29%). Moreover, an excessively high content of MOCA can lead to a transition from hydrophilic to a hydrophobic state. With the exceptional performance, PU materials demonstrated strong potential for practical implementation in protective coatings, flexible electronic substrates, stimuli-responsive thin films, and related advanced functional material systems.</p>\u0000 </div>","PeriodicalId":18054,"journal":{"name":"Macromolecular Chemistry and Physics","volume":"227 13","pages":""},"PeriodicalIF":2.8,"publicationDate":"2026-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148533546","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}
Bhuvanesh Gupta, Vipula Sethi, Chetna Verma, Susheel Kalia, Samrat Mukhopadhyay, Hanène Salmi-Mani, Nadine Barroca-Aubry, Caroline Aymes-Chodur, Philippe Roger
{"title":"An Insight Into the Grafting Mechanism of Polypropylene by Oxygen Plasma Activation","authors":"Bhuvanesh Gupta, Vipula Sethi, Chetna Verma, Susheel Kalia, Samrat Mukhopadhyay, Hanène Salmi-Mani, Nadine Barroca-Aubry, Caroline Aymes-Chodur, Philippe Roger","doi":"10.1002/macp.70300","DOIUrl":"https://doi.org/10.1002/macp.70300","url":null,"abstract":"<div>\u0000 \u0000 <p>Plasma grafting of itaconic acid ontopolypropylene (PP) surface was carried out to investigate the nature of the graft-initiating sites in the system. It has been observed that the grafting is initiated by three mechanisms: peroxy, alkoxy, and alkyl linkages. The relative contribution of the three routes shows that the alkoxy linkage plays a significant role in graft initiation. The investigations were carried out using different techniques, such as Energy- Dispersive X-ray Spectroscopy (EDX) and X-ray Photoelectron Spectroscopy (XPS), and the results support the findings., Although a small fraction of grafting was initiated by alkyl and peroxide linkages, the observations highlighted the prominence of the alkoxy route.. The study presents an interesting aspect of graft functionalization on polymeric materials to design the material surfaces for specific applications. Almost 68% of the grafts follow the hydroperoxide decomposition route, giving alkoxy linkage.</p>\u0000 </div>","PeriodicalId":18054,"journal":{"name":"Macromolecular Chemistry and Physics","volume":"227 13","pages":""},"PeriodicalIF":2.8,"publicationDate":"2026-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148533542","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}
{"title":"Polymersome Crack Film and Its Templating Function in Silica and Gold Deposition","authors":"Yuya Saza, Riku Matsuda, Yohei Kawabata, Tomomasa Satou, Nobuyuki Matsuki, Ren-Hua Jin","doi":"10.1002/macp.70302","DOIUrl":"https://doi.org/10.1002/macp.70302","url":null,"abstract":"<p>Here, we report for the first time the formation of unique self-cracking films prepared by drop-casting polymersomes self-assembled from the block copolymer PEI-b-PPOZ, composed of polyethyleneimine (PEI) and poly(2-phenyl-2-oxazoline) (PPOZ). Using optical and electron microscopy, we investigated the relation between the evolution of self-cracking films with various substrate types and over time. We found that crack-patterned films, interconnected by a dense, channel-like network, are readily and efficiently generated during water evaporation under ambient conditions (20°C–27°C and 40%–50% RH). The concentration of polymersomes and the drying temperature of polymersome cast films have a significant impact on crack formation and crack density. Interestingly, the crack-patterned films served as a catalytic template to promote the hydrolytic polycondensation of tetramethoxysilane (TMOS), resulting in silica-coated films that preserve the original crack pattern. SEM observations before and after silica deposition confirmed that the crack films are composed of stacked spherical polymersomes. The resulting silica-hybrid crack films exhibited enhanced solvent resistance, and the crack channels concentrated target materials via capillary effects when immersed in an aqueous solution of silver acetate. Moreover, deposition of gold on the cracked film by resistance heating evaporation afforded effectively a transparent conductive gold mesh with sheet resistance of 19.9 Ω/◻ and optical transparency of > 90%.</p>","PeriodicalId":18054,"journal":{"name":"Macromolecular Chemistry and Physics","volume":"227 13","pages":""},"PeriodicalIF":2.8,"publicationDate":"2026-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/macp.70302","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148533547","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}
{"title":"Curing Kinetics of Hydrazide-Substituted Phthalonitrile Resin (HYZ-PN) via Model-Based and Model-Free Kinetic (MFK) Methods","authors":"Jeetendra Kumar Banshiwal, Shailendra Kumar Shukla, Preeti Mishra, Dibyendu Sekhar Bag, Kingsuk Mukhopadhyay, Ajit Shankar Singh","doi":"10.1002/macp.70298","DOIUrl":"https://doi.org/10.1002/macp.70298","url":null,"abstract":"<div>\u0000 \u0000 <p>The curing kinetics of (3,4-dicyano-<i>N</i>'-(3,4-dicyanobenzoyl) benzo-hydrazide) (HYZ-PN) with meta-aminophenoxydiphenylsulfone (m-BAPS) were investigated using nonisothermal differential-scanning-calorimetry (DSC) at heating rates of 5–20 K/min. Kinetic parameters were determined via model-based and model-free kinetics (MFK) methods. The average activation energy (<i>E</i><sub>α</sub>), calculated using Ozawa and Kissinger methods, was ∼140.16 kJ/mol. A reaction order “<i>n</i>” of ∼0.967, determined from Crane's equation, indicates an autocatalytic curing mechanism. The frequency factor (<i>A =</i> ∼ 6.5 × 10<sup>11</sup> sec<sup>−1</sup>) is consistent with chemically controlled solid-state-polymerization using model-fitting methods. <i>E</i><sub>α</sub> and <i>A</i> were also further evaluated as a function of the degree of cure (<i>α</i>) using MFK methods. To achieve maximum conversion, an optimized curing profile was established; a hold at 540 K, followed by successive heating to 558 and 590 K. Experimental cure rates showed good agreement with theoretical estimates for heating rates upto 15 K/min.</p>\u0000 </div>","PeriodicalId":18054,"journal":{"name":"Macromolecular Chemistry and Physics","volume":"227 13","pages":""},"PeriodicalIF":2.8,"publicationDate":"2026-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148533541","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}
Jie Tang, Zhicheng Wang, Pingzhong Guan, Xuncheng Liu
{"title":"Side-Chain Positional Engineering Enables Order-of-Magnitude Charge Transport Enhancement in Structurally Simple, Cost-Effective Quinoid Polymer Transistors","authors":"Jie Tang, Zhicheng Wang, Pingzhong Guan, Xuncheng Liu","doi":"10.1002/macp.70296","DOIUrl":"https://doi.org/10.1002/macp.70296","url":null,"abstract":"<div>\u0000 \u0000 <p>Quinoid thiophene-based conjugated polymers are promising semiconductors for organic field-effect transistors (OFETs), yet precise control of interchain aggregation and packing remains challenging. Here, we demonstrate a side-chain positional engineering strategy for high-performance OFETs based on a structurally simple and cost-effective quinoid polymer platform. Using PA4T, constructed from para-azaquinodimethane and quaterthiophene, identical linear n-dodecyl side chains were installed at different thiophene positions to afford a well-defined series of isomeric polymers, enabling systematic investigation of substitution-position effects on aggregation and microstructure. Although their electrochemical properties remain nearly unchanged, side-chain position markedly modulates backbone coplanarity, optical absorption, intermolecular interactions, and interchain packing. All substituted polymers show improved solubility and weakened aggregation compared with unsubstituted PA4T. Notably, PA4T-4, with alkyl substituents at the first and fourth thiophenes oriented toward each other, exhibits reduced backbone torsion, moderate aggregation, and enhanced crystallinity with minimal lattice disorder. Consequently, PA4T-4-based OFETs deliver a reliable hole mobility of 0.813 cm<sup>2</sup> V<sup>−1</sup> s<sup>−1</sup>, nearly an order of magnitude higher than unsubstituted PA4T and superior to the other isomers. These results establish side-chain positional engineering as an effective molecular lever for programming aggregation and charge transport in structurally simple quinoid polymer semiconductors.</p>\u0000 </div>","PeriodicalId":18054,"journal":{"name":"Macromolecular Chemistry and Physics","volume":"227 13","pages":""},"PeriodicalIF":2.8,"publicationDate":"2026-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148533540","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}