| http://www.w3.org/ns/prov#value | - on atoms, preferably 10 to 18 carbon atoms, most preferably 12 to 15 carbon atoms; X is hydrogen or the residue of a hydrophobic end-cap, e.g., CH2 Ph, tert-butyl; Y is hydrogen, methyl, ethyl, or mixtures thereof; Z is hydrogen, methyl, or ethyl; m is 0 or 1; and, n is an integer of at least 1, preferably 1 to about 40, more preferably 2 to about 12, most preferably 3 to about 9.
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