METHOD FOR PRODUCING MODIFIED CONJUGATED DIENE BASED (CO)POLYMER, MODIFIED CONJUGATED DIENE BASED (CO)POLYMER, AND RUBBER COMPOSITION

摘要

The manufacturing method of modified conjugated diene polymer of the invention, have following processes: process (a), it is primary polymer-modified to obtain to carry out a modified-reaction, which imports in the alkali metal active end of the conjugated diene polymer with alkali metal active end and be selected from least one of alkoxysilane compound containing trialkylsilyl group in molecular structure and silanol compound; Process (b), make it is obtained it is primary it is polymer-modified carry out include following processes (b1) and process (b2) reaction, to obtain twice-modified polymer (modified conjugated diene polymer), this method can manufacture the conjugated diene polymer that Mooney viscosity is high, shape stability is excellent well. Process (b1): it is reacted with the condensation accelerator containing metallic element. Process (b2): it is reacted with selected from least one of inorganic acid and metal halide.