| abstract |
Novel, reactive, selectively hydrogenated block copolymers are claimed having the structures AB, ABA, (AB) m Y, (AB) n Y--A) o and (AB) n Y--B) p where each A block is a copolymer block of a monoalkenyl arene monomer and a benzocyclobutene monomer of the formula ##STR1## where R is H or CH 3 and each B block is a substantially completely hydrogenated conjugated diene polymer block. |