| abstract |
A silicone-polyether copolymer has the formula X g -Y, wherein each X is an independently selected silicone moiety having a specific structure, Y is a linear or branched polyether moiety, and the subscript g is on average greater than 1. A method of preparing the silicone-polyether copolymer, the method comprising reacting a polyether compound and an organosilicon compound in the presence of a hydrosilylation catalyst. Also disclosed is a sealant comprising the silicone-polyether copolymer and a condensation reaction catalyst. |