could not be adequately stabilized due to the presence of thermally
stable acetyl groups that would not crosslink, even when the
thermo-oxidation heating rate was as low as 0.01 C/min.
Consequently, SKL was reacted with a significantly lower
anhydride concentration (0.66 ml Ac2O/g SKL) for only 0.25 h
to produce acetylated SKL (Ace-SKL).