Cellulose pulp powder produced from oat straw with a
hemicellulose content of 22.6 % and 0.2 % residual
lignin (Jelucel OF300, Rosenberg, Germany) was used
as starting raw material for the production of CNF. The
anhydrides used for the esterification reaction, namely
acetic anhydride, butyric anhydride, hexanoic anhydride
and 2 dodecen-1-yl-succinnic anhydride were
purchased from Sigma Aldrich and used as received