Scheme 1.

Syntheses of cellulose acetates functionalized with the selectors including 2,3,4,5,6-pentafluorophenylacetyl (F5Ph, 1), phenylacetyl (Ph, 2), pyrene (Py, 3), and benzoate (Benz, 4) groups. Pyrene and benzoate selectors were incorporated into the backbone via copper(I)-catalyzed azide-alkyne cycloaddition reaction between propargyl pyrenebutyl ether 3 and benzoate 4 and azide-functionalized cellulose acetate (CA-N₃). The degree of substitution (DS) is determined from elemental analysis (see Supplementary Material).