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About the SDS inclusion in PDMS/TEOS ORMOSIL: a vibrational spectroscopy and confocal Raman scattering study
Author(s) -
Paschoal A. R.,
Ayala A. P.,
Pinto R. C. F.,
Paschoal C. W. A.,
Tanaka A. A.,
Boaventura Filho J. S.,
José N. M.
Publication year - 2011
Publication title -
journal of raman spectroscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.748
H-Index - 110
eISSN - 1097-4555
pISSN - 0377-0486
DOI - 10.1002/jrs.2908
Subject(s) - ormosil , raman spectroscopy , confocal , raman scattering , sodium dodecyl sulfate , materials science , confocal microscopy , microscopy , analytical chemistry (journal) , spectroscopy , membrane , chemistry , chemical engineering , nanotechnology , sol gel , optics , chromatography , physics , engineering , biochemistry , quantum mechanics
Organically modified silicates (ORMOSILs) are attractive materials due to their vast applicability and easy synthesis. The doping of these materials with sodium dodecyl sulfate (SDS) is interesting in the search for good protonic conductors. The inclusion of different concentrations of SDS in ORMOSIL membranes is investigated in the present work using Raman and infrared spectroscopy, confocal Raman microscopy and confocal imaging microscopy. The spectroscopic measurements allow us to assign the vibrational modes to the chemical groups of the structures of SDS and ORMOSIL. Furthermore, these measurements show that these materials are composites, as no interactions are observed between the SDS and the ORMOSIL matrix. The confocal Raman and confocal imaging techniques are useful to study qualitatively the SDS insertion on the surface of ORMOSIL. It was observed that the SDS sizes are very nonuniform. Copyright © 2011 John Wiley & Sons, Ltd.