Preparation of nanocomposite dispersions based on cellulose whiskers and acrylic copolymer by miniemulsion polymerization: Effect of the silane content

Authors

  • Ayman Ben Mabrouk,

    1. Laboratoire Sciences des Matériaux et Environnement, LMSE, Faculté des Sciences de Sfax, BP 802-3018 Sfax, Tunisia
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  • Hamid Kaddami,

    1. Université Cadi Ayyad, Laboratoire de Chimie Bioorganique et Macromoléculaire, Faculté des Sciences et Techniques-Guéliz, av. A. El Khattabi, BP 618, Marrakech, Morocco
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  • Albert Magnin,

    1. Laboratoire de Rhéologie, Grenoble-INP, UJF Grenoble 1, UMR CNRS 5520, BP 53, 38041 Grenoble Cedex 9, France
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  • Mohamed Naceur Belgacem,

    1. Grenoble Institute of Technology, The International School of Paper, Print Media and Biomaterials (Pagora), UMR CNRS 5518, BP 65, 38402 Saint Martin d'Hères Cedex, France
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  • Alain Dufresne,

    1. Laboratoire de Rhéologie, Grenoble-INP, UJF Grenoble 1, UMR CNRS 5520, BP 53, 38041 Grenoble Cedex 9, France
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  • Sami Boufi

    Corresponding author
    1. Laboratoire Sciences des Matériaux et Environnement, LMSE, Faculté des Sciences de Sfax, BP 802-3018 Sfax, Tunisia
    • Laboratoire Sciences des Matériaux et Environnement, LMSE, Faculté des Sciences de Sfax, BP 802-3018 Sfax, Tunisia
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Abstract

A one-step method was used to prepare stable aqueous nanocomposite dispersions based on cellulose whiskers extracted from the rachis of the date palm tree and a poly(styrene-co-2-ethyl hexylacrylate) copolymer via miniemulsion polymerization. A reactive silane, i.e., methacryloxypropyl triethoxysilane was added to stabilize the dispersion and favor the anchoring of the whiskers on polymer particles. Dynamic light scattering was used to study the effect of the silane and whiskers contents on the average particle size of the polymer. Nanocomposites materials were prepared from these dispersions using a casting/evaporation method. The effect of the silane and whiskers contents on the thermal and mechanical properties were studied using differential scanning calorimetry and dynamic mechanical analysis. POLYM. ENG. SCI., 2011. © 2010 Society of Plastics Engineers

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