| abstract |
(57) [Summary] [Object] To provide a method for producing a cellulose ester using acyl anhydride and trifluoroacetic anhydride as propellants. The present invention involves the formation of a cellulose triester and, optionally, a subsequent hydrolysis step. Moreover, the addition of trifluoroacetic acid directly produces cellulose esters having a degree of substitution of less than 3. |