Artículos de revistas
Synthesis, characterization, and permeability evaluation of hybrid organic-inorganic films
Registro en:
Journal Of Polymer Science Part B-polymer Physics. John Wiley & Sons Inc, v. 42, n. 23, n. 4281, n. 4292, 2004.
0887-6266
WOS:000225194000007
10.1002/polb.20292
Autor
Jose, NM
Prado, LASA
Yoshida, IVP
Institución
Resumen
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. 42 23 4281 4292