Reference : Functionalized polypropylenes as efficient dispersing agents for carbon nanotubes in ...
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Chemistry
Engineering, computing & technology : Materials science & engineering
http://hdl.handle.net/2268/34757
Functionalized polypropylenes as efficient dispersing agents for carbon nanotubes in a polypropylene matrix; application to electromagnetic interference (EMI) absorber materials
English
Thomassin, Jean-Michel [University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
Huynen, Isabelle [Université catholique de Louvain (UCL) > > Microwave Laboratory > >]
Jérôme, Robert 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) > >]
6-Jan-2010
Polymer
Elsevier Science
51
115-121
Yes (verified by ORBi)
International
0032-3861
Oxford
United Kingdom
[en] nanostructured materials ; nanocomposite ; carbon nanotube ; electromagnetic interferences (EMI) shielding material
[en] Carbon nanotubes (CNTs) have been dispersed within polypropylene with the purpose to prepare electromagnetic interference (EMI) absorbers. In order to limit the reflectivity of the electromagnetic waves at the interface of the materials while achieving good absorbing properties, the CNTs concentration must be kept low (<3 wt%) which means that a perfect dispersion must be ensured. Since CNTs do not disperse well within apolar polymer matrices such as polypropylene, two compatibilizers bearing aromatic moieties, i.e. pyrene and pyridine, able to develop π-π interactions with the CNTs have been synthesized starting from polypropylene grafted by maleic anhydride (PP-g-MA). A masterbatch is first prepared by dispersion of CNTs within the compatibilizers by melt-mixing and coprecipitation followed by further dispersion within the PP matrix. Rheological and electromagnetic characterizations of the nanocomposites have demonstrated the efficiency of these compatibilizers to promote the dispersion of CNTs in PP and the good EMI shielding effectiveness of the PP matrix at a low CNTs concentration (2 wt%).
Center for Education and Research on Macromolecules (CERM)
The "Région Wallonne" in the frame of the nanotechnologies program ENABLE and MULTIMASEC ; 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/2268/34757
10.1016/j.polymer.2009.11.012
http://www.sciencedirect.com/science?_ob=MImg&_imagekey=B6TXW-4XRJX8R-1-1&_cdi=5601&_user=532038&_orig=browse&_coverDate=01%2F06%2F2010&_sk=999489998&view=c&wchp=dGLbVzb-zSkWb&md5=2f005b5ec3344fe4ed260233004bd83a&ie=/sdarticle.pdf
http://www.elsevier.com/wps/find/journaldescription.cws_home/30466/description#description
The authors acknowledge Polymer (Elsevier) for allowing them to archive this paper.

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