ORBi: Pantoustier Nadège - Intercalative polymerization of cyclic esters in layered silicates : thermal vs. catalytic activation

Reference : Intercalative polymerization of cyclic esters in layered silicates : thermal vs. catalyt...


	Document type :	Scientific journals : Article
	Discipline(s) :	Physical, chemical, mathematical & earth Sciences : Chemistry Engineering, computing & technology : Materials science & engineering
	To cite this reference:	http://hdl.handle.net/2268/9047

Title :	Intercalative polymerization of cyclic esters in layered silicates : thermal vs. catalytic activation
Language :	English
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 [University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
	Jérôme, Robert [University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
	Henrist, Catherine [University of Liège (ULg) > Department of Chemistry > Laboratory of Structural Inorganic Chemistry (LCIS) > >]
	Rulmont, André [University of Liège (ULg) > Department of Chemistry > Laboratory of Structural Inorganic Chemistry (LCIS) > >]
	Dubois, Philippe [University of Mons-Hainaut (UMH) > > Laboratory of Polymeric and Composite Materials (SMPC) > >]
Publication date :	2003
Journal title :	Composite Interfaces
Publisher :	VSP BV
Volume :	10
Issue/season :	4-5
Pages :	423-433
Audience :	International
ISSN :	0927-6440
City :	Zeist
Keywords :	[en] 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 units :	Center for Education and Research on Macromolecules (CERM)
Funders :	Politique Scientifique Fédérale (Belgique) = Belgian Federal Science Policy ; 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
Target :	Researchers
Permalink :	http://hdl.handle.net/2268/9047
DOI :	10.1163/156855403771953678
Other URL :	http://brill.publisher.ingentaconnect.com/content/vsp/ci/2003/00000010/F0020004/art00005

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