Research Article

Reaction Behavior of Cellulose in the Homogeneous Esterification of Bagasse Modified with Phthalic Anhydride in Ionic Liquid 1-Allyl-3-methylimidazium Chloride

Figure 2

FT-IR spectra of unmodified cellulose (C0, spectrum a) and modified cellulose with phthalic anhydride dosage at 10 (C1, spectrum b), 30 (C3, spectrum c), and 40 (C4, spectrum d) mmol/g.