[Perfluorosulfonate Ionomer] [Mixed Inorganic Oxide] Nanocomposites via Polymer In-Situ Sol-Gel Chemistry
Polymers and High Performance Materials
[Mixed-metal oxide]/[Nafion] hybrid films were formulated via in situ sol-gel reactions for tetrabutyl titanate/tetraethoxysilane and for aluminum tri-sec-butoxide/tetraethoxysilane alkoxide pairs. Inorganic composition profiles across film thicknesses were investigated via X-ray energy dispersive spectroscopy with an environmental scanning microscope. Mechanical tensile analysis was used to infer inorganic oxide nanophase/Nafion interfacial interactions, as well as interknitting of inorganic oxide nanoparticles. The TiO2 component within the titaniasilicate-filled hybrids was concentrated in glassy near-surface regions, whereas the SiO2-Al2O3 phase within aluminasilicate-filled hybrids was distributed homogeneously causing mechanical ductility. Investigations of structural topology within the inorganic oxide phases were conducted via IR and NMR spectroscopies.
Chemistry of Materials
Shao, P. L.,
Mauritz, K. A.,
(1995). [Perfluorosulfonate Ionomer] [Mixed Inorganic Oxide] Nanocomposites via Polymer In-Situ Sol-Gel Chemistry. Chemistry of Materials, 7(1), 192-200.
Available at: https://aquila.usm.edu/fac_pubs/5780