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Type: Artigo de periódico
Title: Synthesis, characterization, and permeability evaluation of hybrid organic-inorganic films
Author: Jose, NM
Prado, LASA
Yoshida, IVP
Abstract: The preparation and characterization of hybrid organic-inorganic films based on poly(dimethylsiloxane), PDMS, crosslinked with nanoclusters obtained from pentaerythrithol triacrylate (PETA) and 2-aminoethyl-3-aminopropyltrimethoxysilane (AS), are reported. The introduction of silica nanoclusters, obtained from tetraethoxysilane as an additional crosslinker, improved the mechanical stability of the films and also produced a noticeable decrease in the solvent sorption and in the distance between the nodes of the polymeric networks. The performance of these films as membranes for gas separation processes was similar to those reported for commercial PDMS, although they presented polar organic PETA/AS crosslinker nuclei. (C) 2004 Wiley Periodicals, Inc.
Subject: crosslinking
gas permeation
Country: EUA
Editor: John Wiley & Sons Inc
Citation: Journal Of Polymer Science Part B-polymer Physics. John Wiley & Sons Inc, v. 42, n. 23, n. 4281, n. 4292, 2004.
Rights: fechado
Identifier DOI: 10.1002/polb.20292
Date Issue: 2004
Appears in Collections:Unicamp - Artigos e Outros Documentos

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