Surfactant molecules intercalated in laponite as studied by C-13 and Si-29 MAS NMR

[en] The structure and dynamics of surfactant molecules intercalated in Laponite have been characterized by solid-state C-13 NMR relaxation times and C-13- and Si-29-detected proton relaxation times. These results are compared to similar data obtained for a surfactant intercalated in montmorillonite and for different mesoporous materials. As compared with montmorillonite clay, a higher mobility and a greater percentage of the gauche conformation of the surfactant molecules are found in Laponite. The Si-29-detected proton relaxation times in the rotating frame are sensitive to the amount of intercalated surfactant.

Research Center/Unit :

Center for Education and Research on Macromolecules (CERM)

Disciplines :

Materials science & engineering
Chemistry

Author, co-author :

Kubies, Dana; Université de Liège - ULiège > Department of Chemistry > Center for Education and Research on Macromolecules (CERM)

Jérôme, Robert ; Université de Liège - ULiège > Department of Chemistry > Center for Education and Research on Macromolecules (CERM)

Grandjean, Jean ; Université de Liège - ULiège > Department of Chemistry > Chimie organique et spectroscopie multinucléaire (COSM)

Language :

English

Title :

Surfactant molecules intercalated in laponite as studied by C-13 and Si-29 MAS NMR

Publication date :

06 August 2002

Journal title :

Langmuir

ISSN :

0743-7463

eISSN :

1520-5827

Publisher :

Amer Chemical Soc, Washington, United States - Washington

Volume :

Issue :

Pages :

6159-6163

Peer reviewed :

Peer Reviewed verified by ORBi

Additional URL :

http://pubs.acs.org/doi/pdf/10.1021/la0117350

Funders :

BELSPO - SPP Politique scientifique - Service Public Fédéral de Programmation Politique scientifique
F.R.S.-FNRS - Fonds de la Recherche Scientifique

Available on ORBi :

since 18 March 2009

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