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2009-07-17 - Article/Dans un journal avec peer-review - Anglais - 12 page(s)

Labruyère Céline, Gorrasi G., Monteverde F., Alexandre M., Dubois Philippe , "Transport properties of organic vapours in silicone/clay nanocomposites" in Polymer, 50, 15, 3626-3637

  • Edition : Elsevier Science, Oxford (United Kingdom)
  • Codes CREF : Chimie macromoléculaire (DI1315), Catalyses hétérogène et homogène (DI1334)
  • Unités de recherche UMONS : Matériaux Polymères et Composites (S816)
  • Instituts UMONS : Institut de Recherche en Science et Ingénierie des Matériaux (Matériaux)
Texte intégral :

Abstract(s) :

(Anglais) Poly(dimethylsiloxane) (PDMS)/clay nanocomposites have been synthesized using a novel ?-ammonium functionalized oligo-PDMS surfactant (PDMS–N+(CH3)3) and processed in membrane form. In order to relate the clay morphological structure to the degree of dispersion and physical properties of the membrane, the clay ion-exchanged by PDMS–N+(CH3)3 has been compared to a non-exchanged sodium MMT and to two organoclays organo-modified by using either non-functional alkyl ammonium cations (C38H80N+) or hydroxyalkyl ammonium (C22H48ON+) cations. Morphological analysis and transport properties (sorption, diffusion and permeability) have been investigated using two penetrants: acetone and n-hexane. The mechanical and rheological properties of the PDMS nanocomposite membranes have also been studied. It has been found a significant effect of the clay organo-modifier on the morphology, physical and barrier properties of the systems.

Notes :
  • (Anglais) Lecture en ligne: http://www.sciencedirect.com/science?_ob=MImg&_imagekey=B6TXW-4WFG5VV-2-1&_cdi=5601&_user=532054&_pii=S0032386109004649&_origin=search&_coverDate=07%2F17%2F2009&_sk=999499984&view=c&wchp=dGLzVlb-zSkzk&md5=4f4956969d8bc4a2e12084958024b2ab
  • (Anglais) Publié en ligne le 3 juin 2009
Identifiants :
  • DOI : 10.1016/j.polymer.2009.05.054