Pneumatic tire and rubber composition containing twin polymerization structures

The present invention is directed to a rubber composition and to a pneumatic tire comprising a component, the component comprising the rubber composition. The rubber composition comprises a diene based elastomer and 1 to 100 phr of: A) a twin polymerization reaction product of a silyl ether; or B) a twin polymerization reaction product of a boronic acid ester; or C) a twin polymerization reaction product of a titanium compound derived from tetraethyl orthotitanate and furfuryl alcohol; or D) a twin polymerization reaction product of a tungsten compound.