Patent ID: 8492491

Claim:
A method for producing a telechelic polyolefin, comprising contacting a terpene initiator with a Lewis acid in the presence of one or more monomers; wherein the terpene initiator contains (a) one or more tertiary carbons containing a leaving group, and (b) one or more functional groups, wherein the one or more functional groups are bonded to a primary or secondary carbon and are unmodified under polymerization conditions; and wherein the terpene initiator is selected from: (a) wherein: A 1 and A 2 are each independently a leaving group or H, wherein at least one of A 1 and A 2 is a leaving group; each X is independently (i) —OH, wherein X is bonded to a primary or secondary carbon; or (ii) —F, —Cl, —Br, —I, ═O, —OC(O)R A , —OR A , —NC, —NCO, —OCN, —SH, —SR A , —S(O)R A , —S(O) 2 R A , —SCN, —NO 2 , or —OS(O) 2 R A , wherein each R A is independently alkyl, alkenyl, or alkenyl, and X is bonded to a primary carbon; and each n is independently an integer from 1-3; (b) wherein: each A 1 and A 2 is independently a leaving group or H, wherein at least one of A 1 and A 2 is a leaving group; each X is independently —OH, —F, —Cl, —Br, —I, ═O, —OC(O)R A , —OR A , —NC, —NCO, —OCN, —SH, —SR A , —S(O)R A , —S(O) 2 R A , —SCN, —NO 2 , or —OS(O) 2 R A , wherein each R A is independently alkyl, alkenyl, or alkynyl, and X is bonded to a primary or secondary carbon; and each n is independently an integer from 1-3; and (c) wherein each A 1 and A 2 is independently —Cl, —Br, or —I.