Abstract: A modified conjugated diene rubber is disclosed. A method for producing the modified conjugated diene rubber includes providing an alkali metal ion-containing conjugated diene rubber; and reacting the alkali metal ion-containing conjugated diene rubber with an alkoxysilane to generate the modified conjugated diene rubber, the alkoxysilane being of the structural formula: wherein R1, R2, R3 are each independently selected from a group consisting of oxygen-containing C2-C12 group and nitrogen-containing C3-C12 group, the oxygen-containing C2-C12 group has a carbon atom directly connected to oxygen atom of the alkoxysilane, the nitrogen-containing C1-C12 group has a nitrogen atom directly connected to oxygen atom of the alkoxysilane, and R4 is selected from a group consisting of C3-C12 of alkyl, alkenyl, aryl, and alkoxy.

Abstract: A method of forming modified conjugated diene rubber includes (a) reacting an alkali metal ion-containing conjugated diene rubber with a first modifier having a structural formula (I), wherein R1, R2, R3 are each independently selected from the group consisting of C1-C12 of alkyl and C2-C12 of alkenyl groups and C6-C12 of aromatic group, and R4 is selected from the group consisting of C1-C12 of alkyl, C2-C12 of alkenyl, C1-C12 of alkoxy groups and C6-C12 of aromatic group; and (b) adding a second modifier having a structural formula (II) after (a), HO—R5—Y??(II) wherein R5 is selected from the group consisting of C1-C12 of alkylene, C2-C12 of alkenylene, C3-C12 of alicyclic groups and C6-C12 of aromatic group, and Y is selected from the group consisting of oxygen-containing C1-C12 group and nitrogen-containing, C1-C12 group, wherein Y has the oxygen atom or the nitrogen atom directly connected to a carbon atom of R5.

Abstract: A modified conjugated diene rubber is disclosed. A method for producing the modified conjugated diene rubber includes providing an alkali metal ion-containing conjugated diene rubber; and reacting the alkali metal ion-containing conjugated diene rubber with an alkoxysilane to generate the modified conjugated diene rubber, the alkoxysilane being of the structural formula: wherein R1, R2, R3 are each independently selected from a group consisting of oxygen-containing C2-C12 group and nitrogen-containing C3-C12 group, the oxygen-containing C2-C12 group has a carbon atom directly connected to oxygen atom of the alkoxysilane, the nitrogen-containing C1-C12 group has a nitrogen atom directly connected to oxygen atom of the alkoxysilane, and R4 is selected from a group consisting of C3-C12 of alkyl, alkenyl, aryl, and alkoxy.