Reference : Motional heterogeneity of intercalated species in modified clays and poly(epsilon-caprol...
Scientific journals : Article
Engineering, computing & technology : Materials science & engineering
Physical, chemical, mathematical & earth Sciences : Chemistry
http://hdl.handle.net/2268/5262
Motional heterogeneity of intercalated species in modified clays and poly(epsilon-caprolactone)/clay nanocomposites
English
Urbanczyk, Laetitia [University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
Hrobarikova, Jana [University of Liège (ULg) > Department of Chemistry > Chimie organique et spectroscopie multinucléaire (COSM) > >]
Calberg, Cédric mailto [University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
Jérôme, Robert mailto [University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
Grandjean, Jean mailto [University of Liège (ULg) > Department of Chemistry > Chimie organique et spectroscopie multinucléaire (COSM) > >]
9-May-2006
Langmuir
Amer Chemical Soc
22
10
4818-4824
Yes (verified by ORBi)
International
0743-7463
Washington
[en] nanostructured material ; nanocomposite ; clay
[en] Modified laponites and synthetic saponites are used as precursors for the preparation of poly(epsilon-caprolactone) (PCL)/clay nanocomposites. The structure and dynamics of species intercalated in the modified clays and the corresponding nanocomposites are characterized by X-ray diffraction and magic-angle spinning NMR. The influence of the headgroup, the hydrocarbon chain length, and the loading of the surfactant on the nanocomposite formation are discussed. The yield of PCL intercalation is related to the probability of direct polymer-clay interactions and to the size of the clay platelets. Relaxation times in the laboratory and rotating frames that allow characterization of fast and slow molecular dynamics in these systems are discussed, showing a motional heterogeneity of the intercalated species.
Center for Education and Research on Macromolecules (CERM)
Politique Scientifique Fédérale (Belgique) = Belgian Federal Science Policy ; Fonds de la Recherche Scientifique (Communauté française de Belgique) - F.R.S.-FNRS ; The Région Wallonne for its financial support in the frame of the TECMAVER and PROCOMO projects
Researchers
http://hdl.handle.net/2268/5262
10.1021/la060041u
http://pubs.acs.org/doi/pdf/10.1021/la060041u

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