Compositions and method for producing poly-aminofunctionalized polymerization initiators and corresponding polymers

A functionalized polymer defined by at least one of the following formula:

• wherein Y1, Y2, Y3, and Y4 are independently substituted silyl groups or hydrogen atoms;
• wherein R1 and R2 are independently any alkylene or arylene groups having a carbon number of from 0 to 20, and may include heteroatoms;
• wherein R3 is a hydrogen atom or an alkyl or aryl group having a carbon number of from 1 to 20, and may include heteroatoms;
• wherein Y1, Y2, Y3, Y4, R1, R2, and/or R3 may be directly or indirectly bonded to each other to form one or more cyclic structures;
• wherein Z1 is an alkali metal, an alkaline earth metal, or a residue of a polymerization terminator;
• wherein X is a carbon atom or a tin atom, wherein Poly is a homopolymer of a conjugated diene compound or a copolymer of a conjugated diene compound and an aromatic vinyl compound.