主权项 |
1. A compound comprising one or more fragments having structure V:wherein
α is an integer of at least 1; β is an integer of at least 1; each X is independently O or NR2—; each R1 is independently a linear, branched, or cyclic alkyl, a linear, branched, or cyclic alkenyl, alkynyl, aryl, or alkaryl group, optionally comprising one or more heteroatoms; each R2 is independently hydrogen or an alkyl group having between 1 and 6 carbon atoms, or a portion of a piperazine moiety wherein X is NR2; each R3, R4, R5, R6, and R7 is independently hydrogen, a linear, branched, or cyclic alkyl, a linear, branched, or cyclic alkenyl, alkynyl, aryl, or alkaryl group, optionally comprising one or more hetero atoms; each R8 is independently a covalent bond, methylene, ethylene, or hydroxymethylene; R9 and R10 are independently hydrogen, a linear, branched, or cyclic alkyl, a linear, branched, or cyclic alkenyl, alkynyl, aryl, alkaryl, or a polymeric moiety; and optionally comprises one or more heteroatoms; each a is independently 0 or an integer of 1 to 12; and each b is independently 0 or 1, wherein b=0 indicates a five membered ring:and b=1 indicates a 6 membered ring: |