Synthesis of Siloxyalumoxanes and Alumosiloxanes Based on Organosilicon Diols

Abstract

We have drawn a few interesting conclusions while studying reaction products of Ph2Si(OH)2 with Al( i Bu)3 and tetraisobutylalumoxane. In the first place, this is the production (at Ph2Si(OH)2 and Al( i Bu)3 equimolar ratio) of oligomer siloxyalumoxane structure with alternating four-and six-member rings, as well as isobutyl and phenyl groups migration between aluminum and silicon due to the formation of intramolecular four-member cyclic complex Tetraisobutylalumoxane reaction with α-and γ-diols results in oligomer compounds.