摘要：In this study, nano fibers were obtained from wheat bran, corn cob and sunflower receptacle by using micro-fluidization and then esterified with fatty acids (C6, C12, C18, C18:1) in different degrees of substitution. Firstly, cellulosic material was treated with NaOH and then milled through the colloid mill and micro-fluidizer to obtain nano-cellulose fiber. Cellulose, lignin and water holding capacity analyzes were made in these fiber. It was determined that as the cellulose content of the samples increased, their water holding capacity increased. These fibers were esterified with different fatty acids in different degrees of substitution to obtain nanocellulose-fatty acid esters. In this way, nanocellulose-fatty acid esters with different hydrophilic and lipophilic groups were obtained (degrees of substitution 0,41-2,99). Increasing the reaction time and increasing the amount of fatty acid used ensured that the esterification reaction took place at a high rate. Products with the maximum degree of esterification were obtained after 300 minute at 90°C with an average of 2.45 acetyl groups and 0.55 fatty substituents per anhydroglucose unit. As a result, cellulose was esterified with different fatty acids and acetic anhydride in DMAc/LiCl medium at different degrees.
