Paper Title:

Perfluorocompound and Hexamethyldisilazane Thin Film Composite Material Used for Surface Modification

Periodical Materials Science Forum (Volumes 636 - 637)
Main Theme Advanced Materials Forum V
Edited by Luís Guerra ROSA and Fernanda MARGARIDO
Pages 1073-1078
DOI 10.4028/www.scientific.net/MSF.636-637.1073
Citation Roberto R. Lima et al., 2010, Materials Science Forum, 636-637, 1073
Online since January, 2010
Authors Roberto R. Lima, E.R. Fachini, Lilian Marques Silva, E.Y. Matsuy, E. Pecoraro, Maria Lucia Pereira Silva
Keywords Fluorinated Compound, Hexamethyldisilazane (HMDS), Plasma Polymerization, Selective Membrane, Volatile Organic Compound (VOC)
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Abstract

The aim of this work was to produce, to characterize and test selective membranes based on derivatives from organic fluorinated/silicon compounds. The produced composites presented silicon and fluorinated species on the surface. The morphology of these non uniform surfaces showed big domains in the micrometer scale but a closer view reveals structures also in the nanometer range. Contact angle measurements showed a mildly hydrophobic and organophilic surface. Polymeric tapes treated with this composite showed an increase on permeation rate for the organic compounds. An acrylic device that employed this modified polymeric tape was manufactured and used for sample pretreatment during chemical analysis.