Acetylation of cellulose in 'LI''CL'-N,N-dimethylacetamide: first report on the correlation between the reaction efficiency and the aggregation number of dissolved cellulose - Ramos, Ludmila Araujo; Morgado, Daniella Lury; El Seoud, Omar A; Silva, Valdinéia C. da; Frollini, Elisabete (Cellulose, 2011)