作者:V. I. Shcherbakov、G. V. Basova、S. Ya. Khorshev、I. P. Malysheva、G. A. Domrachev
DOI:10.1023/a:1015443601131
日期:——
Reaction of potassium (or sodium) triethoxysilanolate with AlBr3 in benzene in a 3 : 1 or 4 : 1 ratio yields, respectively, tris(triethoxysiloxy)aluminum AI[OSi(OEt)(3)](3) or potassium (or sodium) tetrakis(triethoxysiloxy)aluminate MAl[OSi(OEt)(3)](4)} (M = K, Na). Single-stage thermolysis of tris(triethoxysiloxy)aluminum (200degreesC) and potassium tetrakis(triethoxysiloxy)aluminate (300degreesC), followed by annealing of the solid residues at 1000-1250degreesC, yields ceramic materials, which were examined by X-ray diffraction. The crystalline phase obtained from tris(triethoxysiloxy)aluminum is aluminum metasilicate Al6Si2O13 (mullite), and the product obtained from potassium tetrakis(triethoxysiloxy)aluminate is a mixture of aluminum orthosilicate Al2SiO5 (kyanite) and feldspar aluminosilicate KAlSi3O8 (microcline).
REBROV, E. A.;MUZAFAROV, A. M.;ZHDANOV, A. A., DOKL. AN CCCP, 302,(1988) N 2, S. 346-348
作者:REBROV, E. A.、MUZAFAROV, A. M.、ZHDANOV, A. A.
DOI:——
日期:——
Monosodiumoxyorganoalkoxysilanes: Synthesis and properties
作者:E. A. Rebrov、A. M. Muzafarov
DOI:10.1002/hc.20280
日期:——
leads to the formation of both monosodiumoxyorganoalkoxysilanes (MSOAS) and several secondary products. Analysis of experimental evidence makes it possible to advance the mechanism behind this phenomenon and to define the optimum conditions for the preparation of pure MSOAS with high yields. Different MSOAS were synthesized and their basic physicochemical properties were studied. MSOAS are shown to