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In-situ Polymerization vs direct Polymer Incorporation for the Nanocomposite PSS/LDH

Published online by Cambridge University Press:  01 February 2011

Fabrice Leroux ,
El Mostafa Moujahid ,
Joël Cellier  and
Jean-Pierre Besse
Fabrice Leroux
Affiliation:
Laboratoire des Matériaux Inorganiques, UMR 6002, Université Blaise Pascal, 63177 Aubière cédex. Email: [email protected]
El Mostafa Moujahid
Affiliation:
Laboratoire des Matériaux Inorganiques, UMR 6002, Université Blaise Pascal, 63177 Aubière cédex. Email: [email protected]
Joël Cellier
Affiliation:
Laboratoire des Matériaux Inorganiques, UMR 6002, Université Blaise Pascal, 63177 Aubière cédex. Email: [email protected]
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Abstract

Interleaved polystyrene sulfonate polymer between a layered double hydroxide of composition Zn2Al(OH)6Cl. nH2O are prepared either by direct exchange or by in-situ polymerization of the monomer. The latter is confirmed by 13C CP-MAS solid state NMR spectroscopy. This technique provides also clear evidence of the strong interaction between the incorporated monomer and the LDH inorganic framework. A shielding of the aromatic carbon attached to the sulfonate group is observed, this is transmitted through the carbonaceous skeleton to the vinylic carbon. The 2D structure is stabilized with the presence of organic moieties, and even more through the in-situ polymerization process, as exemplified with the conversion from Oh to Td aluminium cations environment. However the difference is diminished with the heating process. The exfoliation/restacking process is found to be here unappropriate, giving rise to ill-defined materials.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 726: Symposium Q – Hybrid Organic-Inorganic Materials , 2002 , Q2.2
Copyright
Copyright © Materials Research Society 2002

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