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| Verfasst von: | Veschgini, Mariam [VerfasserIn]  |
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| | Habe, Taichi [VerfasserIn] |
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| | Mielke, Salomé [VerfasserIn] |
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| | Inoue, Shigeto [VerfasserIn] |
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| | Tanaka, Motomu [VerfasserIn] |
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| Titel: | Existence of two-dimensional physical gels even at zero surface pressure at the air/water interface |
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| Titelzusatz: | rheology of self-assembled domains of small molecules |
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| Verf.angabe: | Mariam Veschgini, Taichi Habe, Salomé Mielke, Shigeto Inoue, Xianhe Liu, Marie Pierre Krafft, Motomu Tanaka |
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| E-Jahr: | 2017 |
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| Jahr: | 14 August 2017 |
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| Umfang: | 5 S. |
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| Illustrationen: | Illustrationen |
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| Teil: | volume:56 |
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| | year:2017 |
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| | number:41 |
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| | pages:12603-12607 |
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| | extent:5 |
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| Fussnoten: | Gesehen am 20.09.2018 |
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| Titel Quelle: | Enthalten in: Angewandte Chemie / International edition |
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| Ort Quelle: | Weinheim : Wiley-VCH, 1962 |
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| Jahr Quelle: | 2017 |
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| Band/Heft Quelle: | 56(2017), 41, Seite 12603-12607 |
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| ISSN Quelle: | 1521-3773 |
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| Abstract: | Films of mesoscopic domains self-assembled from fluorocarbon/hydrocarbon diblock copolymers (FnHm) at the air/water interface were found to display highly elastic behavior. We determined the interfacial viscoelasticity of domain-patterned FnHm Langmuir monolayers by applying periodic shear stresses. Remarkably, we found the formation of two-dimensional gels even at zero surface pressure. These monolayers are predominantly elastic, which is unprecedented for surfactants, exhibiting gelation only at high surface pressures. Systematic variation of the hydrocarbon (n=8; m=14, 16, 18, 20) and fluorocarbon (n=8, 10, 12; m=16) block lengths demonstrated that subtle changes in the block length ratio significantly alter the mechanics of two-dimensional gels across one order of magnitude. These findings open perspectives for the fabrication of two-dimensional gels with tuneable viscoelasticity via self-assembly of mesoscale, low-molecular-weight materials. |
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| DOI: | doi:10.1002/anie.201707009 |
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| URL: | Bitte beachten Sie: Dies ist ein Bibliographieeintrag. Ein Volltextzugriff für Mitglieder der Universität besteht hier nur, falls für die entsprechende Zeitschrift/den entsprechenden Sammelband ein Abonnement besteht oder es sich um einen OpenAccess-Titel handelt.
Volltext ; Verlag: http://dx.doi.org/10.1002/anie.201707009 |
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| | Volltext: https://onlinelibrary.wiley.com/doi/abs/10.1002/anie.201707009 |
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| | DOI: https://doi.org/10.1002/anie.201707009 |
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| Datenträger: | Online-Ressource |
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| Sprache: | eng |
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| Sach-SW: | gels |
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| | polymers |
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| | self-assembly |
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| | shear rheology |
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| | viscoelasticity |
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| K10plus-PPN: | 1581151497 |
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| Verknüpfungen: | → Zeitschrift |
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Existence of two-dimensional physical gels even at zero surface pressure at the air/water interface / Veschgini, Mariam [VerfasserIn]; 14 August 2017 (Online-Ressource)
