| Online-Ressource |
Verfasst von: | Veschgini, Mariam [VerfasserIn]  |
| Habe, Taichi [VerfasserIn]  |
| Mielke, Salomé [VerfasserIn]  |
| Inoue, Shigeto [VerfasserIn]  |
| Tanaka, Motomu [VerfasserIn]  |
Titel: | Existence of two-dimensional physical gels even at zero surface pressure at the air/water interface |
Titelzusatz: | rheology of self-assembled domains of small molecules |
Verf.angabe: | Mariam Veschgini, Taichi Habe, Salomé Mielke, Shigeto Inoue, Xianhe Liu, Marie Pierre Krafft, Motomu Tanaka |
E-Jahr: | 2017 |
Jahr: | 14 August 2017 |
Umfang: | 5 S. |
Illustrationen: | Illustrationen |
Teil: | volume:56 |
| year:2017 |
| number:41 |
| pages:12603-12607 |
| extent:5 |
Fussnoten: | Gesehen am 20.09.2018 |
Titel Quelle: | Enthalten in: Angewandte Chemie / International edition |
Ort Quelle: | Weinheim : Wiley-VCH, 1962 |
Jahr Quelle: | 2017 |
Band/Heft Quelle: | 56(2017), 41, Seite 12603-12607 |
ISSN Quelle: | 1521-3773 |
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. |
DOI: | doi:10.1002/anie.201707009 |
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 |
| Volltext: https://onlinelibrary.wiley.com/doi/abs/10.1002/anie.201707009 |
| DOI: https://doi.org/10.1002/anie.201707009 |
Datenträger: | Online-Ressource |
Sprache: | eng |
Sach-SW: | gels |
| polymers |
| self-assembly |
| shear rheology |
| viscoelasticity |
K10plus-PPN: | 1581151497 |
Verknüpfungen: | → Zeitschrift |
Existence of two-dimensional physical gels even at zero surface pressure at the air/water interface / Veschgini, Mariam [VerfasserIn]; 14 August 2017 (Online-Ressource)