Branched organosilicon compound, method of preparing same, and compositions comprising same

A method of preparing a branched organosilicon compound, said method comprising:

• reacting an organosilicon compound and a functional compound in the presence of a hydrosilylation catalyst to give a branched organosilicon compound;
• wherein the organosilicon compound includes one of a silicon-bonded hydrogen atom and a silicon-bonded ethylenically unsaturated group, with the proviso that when the organosilicon compound includes a silicon-bonded hydrogen atom, the functional compound includes an ethylenically unsaturated group, and when the organosilicon compound includes a silicon-bonded ethylenically unsaturated group, the functional compound includes a silicon-bonded hydrogen atom;
• and
• wherein the branched organosilicon compound has the general formula:
• where X is a divalent linking group, each R is independently a substituted or unsubstituted hydrocarbyl group, each R1 is selected from R and —OSi(R4)3, with the proviso that at least one R1 is —OSi(R4)3, and 1≤n≤10;
• where each R4 is selected from R,—OSi (R5)3, and —[OSiR2]mOSiR3;
• where each R5 is selected from R, —OSi(R6)3, and —[OSiR2]mOSiR3;
• where each R6 is selected from R and —[OSiR2]mOSiR3;
• with the proviso that at least one of R4, R5 and R6 is —[OSiR2]mOSiR3;
• where 0≤m≤100;
• and
• where R3 has the general formula -D-Op—(CqH2qO)r—R8, where D is a divalent hydrocarbon linking group having from 2 to 18 carbon atoms, subscript p is 0 or 1, subscript q is independently selected from 2 to 4 in each moiety indicated by subscript r, subscript r is from 1 to 500, and R8 is selected from substituted or unsubstituted hydrocarbyl groups and H.