Example 2
To a graduated flask in a nitrogen atmosphere were added 3-dimethylaminopropyltrimethoxysilane and then anhydrous hexane to prepare a terminal modifier.
A sufficiently nitrogen-purged pressure-proof vessel was charged with n-hexane, butadiene, and TMEDA, followed by heating to 60° C. Next, butyllithium was added, and the mixture was then heated to 50° C. and stirred for three hours. Subsequently, the terminal modifier was added, and the mixture was stirred for 30 minutes. To the reaction solution were added methanol and 2,6-tert-butyl-p-cresol, and the resulting reaction solution was put into a stainless steel vessel containing methanol. Then, aggregates were collected. The aggregates were dried under reduced pressure for 24 hours to obtain a modified polybutadiene rubber (BR 1).
