ISOPRENE OLIGOMER, POLYISOPRENE, AND METHOD FOR PRODUCING THE SAME, RUBBER COMPOSITION, AND PNEUMATIC TIRE

摘要

To provide an isoprene oligomer and a polyisoprene with a modified main chain of a molecule, and a rubber composition containing the isoprene oligomer and/or the polyisoprene, and a pneumatic tire with the rubber composition used for each member of a tire.SOLUTION: The present invention provides an isoprene oligomer synthesized from an allyl diphosphoric acid represented by a formula (X) and a compound represented by a formula (Y) (n is an integer of 1-10, R is a group other than a methyl group).SELECTED DRAWING: None