Preparation of SiO<sub>2</sub>-TiO<sub>2</sub> Fibers from Polytitanosiloxanes
Yoshimoto AbeTakahiro GunjiMichiro HikitaYukinori NagaoTakahisa MISONO
Abstract
Silicic acid was extracted with tetrahydrofuran from an (2, 4-pentanedionato) titanium diisopropoaqueous sodium metasilicate solution neutralized with hydrochloric acid. The reaction of silicic acid with his xide led to polytitanosiloxane polymers with good spinnability and stability against condensations. Precursor fiber was obtained on dry spinning of the polymer. Pyrolysis of the precursor at ca. 1000°C provided with SiO2-TiO2 fibers of 9.5-9.6μm in diameter.
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