Reference : Microscopic morphology of chlorinated polyethylene nanocomposites synthesized from po...
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Chemistry
http://hdl.handle.net/2268/126479
Microscopic morphology of chlorinated polyethylene nanocomposites synthesized from poly(e-caprolactone)/clay masterbatches
English
Brocorens, Patrick [Université de Mons-Hainaut - UMH > > Service de chimie des matériaux nouveaux > >]
Benali, Samira [Université de Mons-Hainaut - UMH > Center of Innovation and Research in Materials and Polymers (CIRMAP) > Laboratory of Polymeric and Composite Materials (LPCM) > >]
Broekaert, Cedric [Université de Mons-Hainaut - UMH > Center of Innovation and Research in Materials and Polymers (CIRMAP) > Laboratory of Polymeric and Composite Materials (LPCM) > >]
Monteverde, Fabien [Materia Nova asbl > > > >]
Miltner, Hans [Vrije Universiteit Brussel - VUB > > Physical Chemistry and Polymer > >]
Alexandre, Michaël mailto [Université de Mons-Hainaut - UMH > Center of Innovation and Research in Materials and Polymers (CIRMAP) > Laboratory of Polymeric and Composite Materials (LPCM) > >]
Dubois, Philippe [Université de Mons-Hainaut - UMH > Laboratory of Polymeric and Composite Materials (LPCM) > Center of Innovation and Research in Materials and Polymers (CIRMAP) > >]
Lazzaroni, Roberto [Université de Mons-Hainaut - UMH > > Service de chimie des matériaux nouveaux > >]
2008
Langmuir
24
2072-2080
Yes (verified by ORBi)
International
0743-7463
[en] nanocomposite ; clay ; ring-opening polymerization (ROP)
[en] Chlorinated polyethylene (CPE) nanocomposites were synthesized by melt blending clay-rich/poly( -caprolactone) (PCL) masterbatches to CPE matrices. The masterbatches were prepared following two synthetic routes: either PCL is melt-blended to the clay or it is grafted to the clay platelets by in situ polymerization. The microscopic morphology of the nanocomposites was characterized by X-ray diffraction, atomic force microscopy, transmission electron microscopy, and modulated temperature differential scanning calorimetry. When using free PCL, intercalated composites are formed, with clay aggregates that can have micrometric dimensions and a morphology similar to that of the talc particles used as fillers in commercial CPE. PCL crystallizes as long lamellae dispersed in the polymer matrix. When using grafted PCL, the nanocomposite is intercalated/exfoliated, and the clay stacks are small and homogeneously dispersed. PCL crystallizes as lamellae and smaller crystals, which are localized along the clay layers. Thanks to the grafting of PCL to the clay platelets, these crystalline domains are thought to form a network with the clay sheets, which is responsible for the large improvement of the mechanical properties of these materials.
Researchers
http://hdl.handle.net/2268/126479
10.1021/la702822d

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