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Templating porosity in polymethylsilsesquioxane coatings using trimethylsilylated hyperbranched polymers

Plummer, C. ; Garamszegi, L. ; Nguyen, T.-Q ; Rodlert, M. ; Månson, J.-A

In: Journal of Materials Science, 2002, vol. 37, no. 22, p. 4819-4829

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    Titre
    • Templating porosity in polymethylsilsesquioxane coatings using trimethylsilylated hyperbranched polymers
    Auteur
    • Plummer, C.. Laboratoire de Technologie des Composites et Polymères (LTC) and, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015, Switzerland
    • Garamszegi, L.. Laboratoire de Technologie des Composites et Polymères (LTC) and, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015, Switzerland
    • Nguyen, T.-Q. Laboratoire de Polymères (LP), Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015, Switzerland
    • Rodlert, M.. Laboratoire de Technologie des Composites et Polymères (LTC) and, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015, Switzerland
    • Månson, J.-A. Laboratoire de Technologie des Composites et Polymères (LTC). Laboratoire de Polymères (LP), Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015, Switzerland
    Type de document
    • Postprint
    Langue
    • Anglais
    Publié dans
    • Journal of Materials Science, 2002, vol. 37, no. 22, p. 4819-4829. Kluwer Academic Publishers
    Autre version électronique
    Classification
    • Technologie, Sciences de l'ingénieur
    Identifiant OAI-PMH
    • oai:doc.rero.ch:314412
    Summary
    A series of trimethylsilyl end-functionalized aliphatic hyperbranched polymers has been used to template porosity in polymethylsilsesquioxane films prepared by heat treatment of a spin cast methylsilsesquioxane precursor. By varying the extent of the end-functionalization, closed pore foams with controlled pore sizes and pore contents of up to 40 vol% were obtained by chemically-induced phase separation and thermal degradation of the hyperbranched polymers during the heat treatment