NMR Assignments of Propionyl Groups in Cellulose Tripropionate

All the NMR signals of cellulose tripropionate were completely assigned by a combined use of the techniques of 1H-1H homonuclear shift-correlation spectroscopy (H, H-COSY), 1H-13C heteronuclear shift-correlation spectroscopy (H, C-COSY), 1H-13C shift-correlation via long-range couplings (H, C-COLOC), and long-range selective proton decoupling (LSPD) with special emphasis on the signal assignments for propionyl groups.