English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/44028
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:


Polymers under extreme two-dimensional confinement: Poly(ethylene oxide) in graphite oxide

AuthorsBarroso-Bujans, Fabienne ; Fernández-Alonso, Félix; Cerveny, Silvina ; Parker, Stewart F.; Alegría, Ángel ; Colmenero de León, Juan
Issue Date2011
PublisherRoyal Society of Chemistry (UK)
CitationSoft Matter 7(16): 7173-7176 (2011)
AbstractThe confinement of poly(ethylene oxide) in graphite oxide is studied using a combination of diffraction, calorimetric, and spectroscopic methods. Polymer intercalation into subnanometer graphite oxide layers leads to the complete suppression of crystallization phenomena and dielectric α-relaxation processes, as well as a slowdown of β-relaxation modes. For the first time, high-resolution inelastic neutron scattering shows that poly(ethylene oxide) under these extreme confinement conditions adopts a planar zig-zag conformation, in no way resembling the characteristic 72 helical structure of the bulk crystal. The neutron data also shows a strong suppression of the COC and OCC bending modes and a distinct broadening of C–O torsional bands.
Description4 páginas, 4 figuras.
Publisher version (URL)http://dx.doi.org/10.1039/C1SM05661A
Appears in Collections:(CFM) Artículos
Files in This Item:
There are no files associated with this item.
Show full item record
Review this work

Related articles:

WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.