Trimethoxy(methyl)silane (27.2 g, 0.20 mol) and MeOH (13.3 g, 0.42 mol) were placed into a 200 ml four-necked flask equipped with nitrogen inlet and outlet tubes and a mechanical stirrer.

Polysilsesquioxanes are defined as polysiloxanes, with the average formula (RSiO 3/2) n, and they are categorized as random, ladder or cage structures. 1 Ladder and cage silsesquioxanes are known ...