反应详情

In connection with the aluminosiloxane compound additive, the preparation thereof may be accomplished according to K. Folting, W. E. Streib, K. G. Caulton, O. Poncelet and L. G. Hubert-Pfalzgraf, Polyhedron, 10 (14), 1639-1646 (1991). A mixture of trimethylsilylacetate and cyclohexane may be added to aluminum isopropoxide in the desired ratio so as to provide the desired relation of Si:Al of 1:1, 2:1 or 3:1. The mixtures so formed are then subjected to azeotropic distillation so as to obtain cyclohexane/isopropylacetate, and the solution can then be concentrated and distilled so as to provide the desired additive. Azeotropic distillation may be carried out at a temperature of approximately 80° C. and for a time period of between about 8 to about 24 hours. Of course, the time and temperature of the procedure may be adjusted to particular conditions and ingredients. The resulting additive product may suitably be identified and confirmed to possess the desired structure through IR and 1H NMR spectroscopies.

1. customIn connection with the aluminosiloxane compound additive, the preparation
2. customto provide the desired relation of Si
3. customThe mixtures so formed
4. distillationare then subjected to azeotropic distillation so as