Patent ID: 8222456

Claim:
An oligomer of Formula Ia R 1 -A 1 - s -A 2 - s -A 1 -R 2 (Ia) or an acceptable salt or solvate thereof, wherein A 1 and A 2 are each m-phenylene, wherein one of A 1 or A 2 is substituted with a polar (PL) group and the other of A 1 or A 2 is unsubstituted; s is —C≡C—; R 1 is a polar (PL) group in addition to the polar (PL) group attached to A 1 , if A 1 is substituted with the polar (PL) group, or -s-A′, wherein A′ is aryl or heteroaryl, either of which is optionally substituted with one or more polar (PL) group(s); R 2 is R 1 ; PL is a polar group selected from the group consisting of halo, hydroxyethoxymethyl, methoxyethoxy methyl, polyoxyethylene, and —(NR 5′ ) q1PLn —U PL —(CH 2 ) pPL —(NR 5″ ) q2PL —V, wherein: R 5 , R 5′ , and R 5″ are independently selected from the group consisting of hydrogen, alkyl, and alkoxy; U PL is absent or selected from the group consisting of O, S, —S(═O)—, —S(═O) 2 —, —NR 5 —, —(C═O)—, —(C═O)—N═N—NR 5 —, —(C═O)—NR 5 —N═N—, —N═N—NR 5 —, —C(═N—N(R 5 ) 2 )—, —C(═NR 5 )—, —C(═O)O—, —C(═O)S—, —C(═S)—, —O—P(═O) 2 O—, —R 5 O—, —R 5 S—, —S—C═N— and —(C═O)—NR 5 —O—, wherein groups with two chemically nonequivalent termini can adopt both possible orientations; V is selected from the group consisting of cyano, amino, alkylthio, alkylamino, dialkylamino, —NH(CH 2 ) p NH 2 , —N(CH 2 CH 2 NH 2 ) 2 , diazamino, amidino, guanidino, guanyl, and semicarbazone, any of which is optionally substituted with one or more of amino, halo, cyano, —NH(CH 2 ) p NH 2 , —N(CH 2 CH 2 NH 2 ) 2 , amidino, guanidino, guanyl, aminosulfonyl, aminoalkoxy, aminoalkythio, lower acylamino, or benzyloxycarbonyl; the alkylene chain —(CH 2 ) pPL — is optionally substituted with one or more amino or hydroxyl groups, or the alkylene chain is unsaturated; pPL is 0 to 8; and q1PL and q2PL are independently 0 to 2.