POLYFUNCTIONAL VINYL AROMATIC COPOLYMER AND METHOD FOR MANUFACTURING SAME, COPOLYMER RUBBER OBTAINED THEREFROM, RUBBER COMPOSITION, RUBBER CROSSLINKED MATERIAL, AND TIRE MEMBER
Provided is a polyfunctional vinyl aromatic copolymer having reactivity and solubility that can be used for manufacturing a copolymer rubber and a copolymer rubber material having processability, stre…