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Ion conductive behaviour in a confined nanostructure: NMR observation of self-diffusion in a liquid-crystalline bicontinuous cubic phase
KTH, Skolan för kemivetenskap (CHE), Kemi, Fysikalisk kemi.
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2010 (Engelska)Ingår i: Chemical Communications, ISSN 1359-7345, E-ISSN 1364-548X, Vol. 46, nr 5, s. 728-730Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

The diffusion of ions in an ionic liquid crystal exhibiting a bicontinuous cubic liquid-crystalline phase has been investigated by NMR spectroscopy in order to examine the behaviour of ions in an ordered nanostructure.

Ort, förlag, år, upplaga, sidor
2010. Vol. 46, nr 5, s. 728-730
Nationell ämneskategori
Kemi
Identifikatorer
URN: urn:nbn:se:kth:diva-19170DOI: 10.1039/b915931bISI: 000274207000017Scopus ID: 2-s2.0-74549136458OAI: oai:DiVA.org:kth-19170DiVA, id: diva2:337217
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Vetenskapsrådet
Anmärkning
QC 20110124Tillgänglig från: 2010-08-05 Skapad: 2010-08-05 Senast uppdaterad: 2017-12-12Bibliografiskt granskad
Ingår i avhandling
1. Nano-segregated soft materials observed by NMR spectroscopy
Öppna denna publikation i ny flik eller fönster >>Nano-segregated soft materials observed by NMR spectroscopy
2011 (Engelska)Doktorsavhandling, sammanläggning (Övrigt vetenskapligt)
Abstract [en]

This thesis is about using nuclear magnetic resonance (NMR) spectroscopy for studying soft materials. Soft materials may be encountered everyday by most readers of this thesis, for example when taking a shower or watching TV. The usefulness of these materials originates from them being soft yet, at the same time, having some kind of a structure. The characteristic length scale of those structures is often on the order of nanometers (10-9 m) and the structure can respond to various external stimuli such as temperature, electric and magnetic fields, or the presence of interfaces.

NMR spectroscopy excels when studying soft materials because it is a non-invasive technique with a large spectral resolution. Moreover, different NMR methods allow us to study local molecular dynamics or longer-range translational diffusion. Understanding those latter aspects is very important for the development of dynamic and responsive materials.

Papers I-III present our work on assessing molecular adsorption on interfaces in colloidal dispersions. Here, carbon nanotubes (CNTs) or silica particles were the colloidal substrates to which proteins, polymers or surfactants adsorbed. Papers IV-VI concern ionic mobility in liquid crystals (LCs). The influence of material structure on, for example, the anisotropy of diffusion or on the association/dissociation of ions was studied in several LC phases.

Ort, förlag, år, upplaga, sidor
Stockholm: KTH Royal Institute of Technology, 2011. s. 46
Serie
Trita-CHE-Report, ISSN 1654-1081 ; 2011:12
Nyckelord
nuclear magnetic resonance, soft matter, colloidal dispersion, carbon nanotubes, colloidal silica, adsorption, liquid crystals, ionic liquids, diffusion
Nationell ämneskategori
Fysikalisk kemi
Identifikatorer
urn:nbn:se:kth:diva-30337 (URN)978-91-7415-876-2 (ISBN)
Disputation
2011-03-18, Sal F3, Lindstedtsvägen 26, KTH, Stockholm, 09:30 (Engelska)
Opponent
Handledare
Anmärkning
QC 20110225Tillgänglig från: 2011-02-25 Skapad: 2011-02-23 Senast uppdaterad: 2011-02-25Bibliografiskt granskad

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Dvinskikh, Sergey V.Furo, Istvan

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Frise, Anton E.Dvinskikh, Sergey V.Furo, Istvan
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