Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 3 of 3 for “"polyethoxysiloxane"”.
-
Silica-based nanocomposite membranes via the sol gel process of polyethoxysiloxane within a sulfonated poly(ether-ether-ketone) matrix: morphology and proton mobility
… from the in situ "water free" sol-gel process of polyethoxysiloxane (PEOS). PEOS is a soluble and liquid hyperbranched polymer of low viscosity synthesized in our laboratories via a one pot reaction between tetraethoxysilane (TEOS) and acetic anhydride. The PEOS used within this thesis contains ca …
-
Hyperbranched polyalkoxysiloxanes, synthesis, characterization and applications
… are discussed. Different hyperbranched polyethoxysiloxane polymers using triethoxysilanol and acetoxytriethoxysilane as AB3 type monomers were synthesized. Beside of using AB3 monomers, it was possible to synthesize hyperbranched polyethoxysiloxanes also via a titaniumalkoxide catalyzed …
-
Science and history explored by nuclear magnetic resonance
… are more efficient when low concentrations of polyethoxysiloxane (PEOS) are used for the membrane preparation. Proton 1D exchange spectroscopy combined with transverse relaxation measurements offered good insight in the state of water in hydrated SPEEK/SiO2 membranes revealing that …