Article (Scientific journals)
Intercalative polymerization of cyclic esters in layered silicates : thermal vs. catalytic activation
Pantoustier, Nadège; Alexandre, Michaël; Degée, Philippe et al.
2003In Composite Interfaces, 10 (4-5), p. 423-433
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Keywords :
nanostructured material; nanocomposite; clay
Abstract :
[en] Poly(ε-caprolactone) layered silicate nanocomposites were synthesized by in situ inter-calative ring-opening polymerization (ROP) of ε-caprolactone. The polymerization was promoted by thermal or catalytic initiation starting from either non-modified natural sodium-montmorillonite (MMT-Na) or montmorillonite modified by different ammonium cations bearing either non-functional alkyl chains or chains terminated by carboxylic acid or hydroxyl functions. The resulting compositions were analyzed by small-angle X-ray diffraction and transmission electron microscopy. The clay dispersion depended on the structure of the alkyl ammonium. Exfoliated nanocomposites were formed when hydroxyl-containing alkyl-ammonium was used; otherwise, partially intercalated/partially exfoliated structures were observed. Moreover, caving to the inherent catalytic properties of the montmo-rillomte surface, it was also possible to prepare intercalated nanocomposites by in situ polymerization of ε-caprolactone in presence of non-modified montmorillonite-Na (MMT-Na) without any added catalyst.
Research center :
Center for Education and Research on Macromolecules (CERM)
Disciplines :
Materials science & engineering
Chemistry
Author, co-author :
Pantoustier, Nadège;  University of Mons-Hainaut (UMH) > Laboratory of Polymeric and Composite Materials (SMPC)
Alexandre, Michaël ;  University of Mons-Hainaut (UMH) > Laboratory of Polymeric and Composite Materials (SMPC)
Degée, Philippe;  University of Mons-Hainaut (UMH) > Laboratory of Polymeric and Composite Materials (SMPC)
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)
Henrist, Catherine ;  Université de Liège - ULiège > Department of Chemistry > Laboratory of Structural Inorganic Chemistry (LCIS)
Rulmont, André ;  Université de Liège - ULiège > Department of Chemistry > Laboratory of Structural Inorganic Chemistry (LCIS)
Dubois, Philippe ;  University of Mons-Hainaut (UMH) > Laboratory of Polymeric and Composite Materials (SMPC)
Language :
English
Title :
Intercalative polymerization of cyclic esters in layered silicates : thermal vs. catalytic activation
Publication date :
2003
Journal title :
Composite Interfaces
ISSN :
0927-6440
eISSN :
1568-5543
Publisher :
VSP BV, Zeist, Netherlands
Volume :
10
Issue :
4-5
Pages :
423-433
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
BELSPO - SPP Politique scientifique - Service Public Fédéral de Programmation Politique scientifique
the "Région Wallonne" and the "Fonds Social Européen" in the frame of Objectif 1-Hainaut: Materia Nova
The "Région Wallonne" in the framework of the WJD.U program TECMAVER
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