| http://www.w3.org/ns/prov#value | - In another embodiment, the present invention is a method to form an asymmetric siloxane containing at least one carbon to carbon double bonds comprising adding a molar excess of less than 4:1 of a dihydridosiloxane to an aliphatic unsaturated hydrocarbon containing one or more terminal carbon to carbon double bonds in the presence of a precious metal hydrosilylation catalyst and, in a second step,
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