A new
sustainable synthetic method for cellulose acetate was developed
by a combination of I2-catalyzed solid–liquid acetylation
of cellulose and a milling process reducing the crystallinity of cellulose
within a few seconds. Milled low-crystalline cellulose was acetylated
faster than the original cellulose with higher crystallinity. The
plausible factors of acceleration were the conversion of the hydroxy
group in hydrogen bonds into reactive ones and the efficient formation
of the catalytic species I+ by the enhanced formation of
I3– assisted by the amorphous domain
of the milled cellulose, while the morphological and structural changes
were ignorable.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.