
Synthesis of polytitanosiloxanes by reaction of diphenylsilanediol with tetrabutoxytitanium
Journal of Beijing University of Chemical Technology ›› 2010, Vol. 37 ›› Issue (5) : 51-56.
Synthesis of polytitanosiloxanes by reaction of diphenylsilanediol with tetrabutoxytitanium
Polytitanosiloxanes have been synthesized by reaction of diphenylsilanediol with tetrabutoxytitanium in a bulk polymerization system. The oligomers were characterized by gel permeation chromatography (GPC), energy dispersive X-ray spectroscopy (EDS), Fourier transform infrared spectroscopy (FT-IR), nuclear magnetic resonance spectroscopy (NMR), mass spectrometry (MS), X-ray diffraction (XRD) and thermogravimetric analysis (TGA) methods. The results show that the oligomers were composed of a series of compounds with molecular weights in the range 517-1248. Some of the oligomers were oligo-polytitanosiloxanes, and some were just oligomers of diphenylsilanediol. The TGA study showed that the residue after heating the oligomers to 1000 ℃ in a nitrogen atmosphere was about 48.9% and that they had good thermal resistance.
/
〈 |
|
〉 |