Y. Abe, I. Kijima
Apr 1, 1969
Citations
0
Influential Citations
36
Citations
Journal
Bulletin of the Chemical Society of Japan
Abstract
Tributoxysiloxychlorosilanes [(BuO)3SiO]xSiCl4−x(Bu=t: x=1,2; Bu=s: x=1,2,3 or 4) were prepared by the reaction of silicon tetrachloride with tributoxysilanol in the presence of pyridine. The hydrolysis of these compounds led to the formation of tributoxysiloxysilanols [(BuO)3SiO]xSi(OH)4−x (Bu=t: x=2; Bu=s: x=2 or 3). Tri-t-butoxysiloxysilanetriol was obtained from the corresponding trichlorosilane under mild hydrolytic conditions by using aniline as an hydrogen-chloride acceptor. On the other hand, the hydrolysis of the trichlorosilane with excess water in the presence of pyridine gave a resinous product. The fractional precipitation of this product gave a white powder soluble in such organic solvents as benzene, n-hexane, ether, and carbon tetrachloride; the powder had a molecular weight between 2500 and 4300. This resin turned into glassy solids upon being heated at 200 or 300°C under reduced pressure; these solids had molecular weights between 5500 and 12500. The possible structures for these polymer...