Reference : Poly(caprolactone)/clay masterbatches prepared in supercritical CO2 as efficient clay de...
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Chemistry
Engineering, computing & technology : Materials science & engineering
http://hdl.handle.net/2268/7010
Poly(caprolactone)/clay masterbatches prepared in supercritical CO2 as efficient clay delamination promoters in poly(styrene-co-acrylonitrile)
English
Urbanczyk, Laetitia mailto [Univerity of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
Calberg, Cédric mailto [University of Liège (ULg) > Department of Applied Chemistry > Laboratory of Industrial Chemistry > >]
Benali, Samira [University of Mons-Hainaut (UMH) > > Laboratory of Polymeric and Composite Materials > >]
Bourgibot, Serge [Villeuneuve d’Ascq, France > > Equipe Procédés d’Elaboration de Revêtements Fonctionnels > >]
Espuche, Eliane [Villeurbanne, France > > Laboratoire des Matériaux Polymeères et des Biomatériaux > >]
Gouanvé, Fabrice [Villeurbanne, France > > Laboratoire des Matériaux Polymeères et des Biomatériaux > >]
Dubois, Philippe [University of Mons-Hainaut (UMH) and Materia Nova asbl > > Laboratory of Polymeric and Composite Materials (UMH) > >]
Germain, Albert mailto [University of Liège (ULg) > Department of Applied Chemistry > Laboratory of Industrial Chemistry > >]
Jérôme, Christine mailto [University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
Detrembleur, Christophe mailto [University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
Alexandre, Michaël mailto [University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
Aug-2008
Journal of Materials Chemistry
Royal Society Chemistry
18
39
4623-4630
Yes (verified by ORBi)
International
0959-9428
Cambridge
UK
[en] nanostructured material ; nanocomposite ; clay
[en] Poly(styrene-co-acrylonitrile) (SAN)/clay nanocomposites with a high degree of clay exfoliation were prepared upon melt blending of pre-exfoliated poly(-caprolactone) (PCL)/organoclay masterbatches in a Brabender-type internal mixer. These highly filled masterbatches were synthesized by a one-pot process using supercritical carbon dioxide as a polymerization medium. During their dispersion into SAN, PCL is expected to act as a compatibilizer at the polymer–clay interface as it is miscible with the host matrix under these conditions. Reference nanocomposites based on direct melt mixing of the commercial organoclay were also prepared for the sake of comparison. The superiority of the masterbatch route in term of clay delamination efficiency has been evidenced by XRD analysis, visual and TEM observations. The effect of the nanocomposite morphology on the polymer properties was then investigated. A substantial improvement of the fire behaviour and a decrease in gas permeability have been observed for the nanocomposite containing the highest level of clay exfoliation, accompanied with a higher brittleness as evidenced by traction and impact tests.
Center for Education and Research on Macromolecules (CERM)
The Region Wallonne in the frame of the WINNOMAT program PROCOMO ; Politique Scientifique Fédérale (Belgique) = Belgian Federal Science Policy ; Fonds de la Recherche Scientifique (Communauté française de Belgique) - F.R.S.-FNRS
Researchers
http://hdl.handle.net/2268/7010
10.1039/b807357k
http://www.rsc.org/ej/JM/2008/b807357k.pdf

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