Preparation method of anionic polymerization initiator, device for manufacturing anionic polymerization initiator and anionic polymerization initiator prepared therefrom

A method for preparing an anionic polymerization initiator comprising:

• introducing an amine compound of Formula 2 below and an organometallic compound into a continuous reactor to react them:
• wherein,
• R23, R24 and R25 independently represent hydrogen, an alkyl group having 1 to 6 carbon atoms, an alkenyl group having 1 to 6 carbon atoms or an alkynyl group having 1 to 6 carbon atoms,
• Y represents nitrogen, oxygen or sulfur,
• R26 is absent when Y is oxygen or sulfur, and represents an alkyl group having 1 to 6 carbon atoms, an alkenyl group having 1 to 6 carbon atoms, an alkynyl group having 1 to 6 carbon atoms or a hetero atom when Y is nitrogen, and
• b is an integer of 1 to 20.