MODIFIED DIENE RUBBER AND RUBBER COMPOSITION CONTAINING THE SAME

摘要

A diene rubber is modified for increasing the dispersibility of silica and improving wear resistance and resistance to heat generation. Specifically disclosed is a modified diene rubber which is obtained by adding a compound (B) having a nitroxide free radical, which is stable at room temperature in the presence of oxygen, in the molecule, a radical initiator (C) and a radically polymerizable monomer (D) having a functional group in the molecule to a diene rubber (A), and then reacting the resulting mixture. Also specifically disclosed are a rubber composition containing the modified diene rubber, and a pneumatic tire.