About the SDS inclusion in PDMS/TEOS ORMOSIL: a vibrational spectroscopy and confocal Raman scattering study (pages 1601–1605)
A. R. Paschoal, A. P. Ayala, R. C. F. Pinto, C. W. A. Paschoal, A. A. Tanaka, J. S. Boaventura Filho and N. M. José
Article first published online: 6 APR 2011 | DOI: 10.1002/jrs.2908
The 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 the ORMOSIL membranes is investigated in the present work using Raman and infrared spectroscopy, confocal Raman microscopy and confocal imaging microscopy. The spectroscopic measurements allowed 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 in ORMOSIL. We observed that the SDS sizes are very irregular.