POLYMERIZATION INITIATOR, MODIFIED-CONJUGATED DIENE POLYMER AND TIRE PREPARED THEREFROM

摘要

The present invention relates to a polymerization initiator and a modified conjugate diene-based polymer produced using the same. More specifically, the polymerization initiator is a compound represented by Chemical Formula 1. [Chemical Formula 1] (The R_1 to R_5 are independently hydrogen, C 1-10 alkyl groups, or carbanions of the same. The n- means a negative charge number by the carbanions, which is 1- to 5-. The M is a metal. The n is the same as the number of the carbanions in the R_1 to R_5.) The modified conjugate diene-based polymer produced using the polymerization initiator of the present invention has a higher vinyl content than a polymer produced using an existing organic lithium initiator. Accordingly, the modified conjugate diene-based polymer of the present invention has remarkably improved compatibility with an inorganic filler included together when the same is included in a rubber composition for a tire tread compared to an existing product. Consequently, abrasion resistance required for a tire is improved and high humidity resistance and low rotation resistance values are exhibited.