Acetylation of Isobutyric Anhydride on Lignin

by Lia Novak

We aim to determine if isobutyric anhydride (IA) can be added to lignin via an acylation reaction catalyzed by hafnium triflate. Lignin, IA, and Hf(OTf)4 were dissolved in 1,4-dioxane, which was allowed to react and subsequently centrifuged to recover modified lignin. It was then dried and prepped for 31P-NMR spectroscopy. The 31P-NMR spectrum shows there were no aliphatic hydroxyl groups which indicates some of the hydroxyl groups on lignin were acylated.

Major: 
Biorenewable Systems - Bioproducts
Exhibition Category: 
Engineering
Exhibition Format: 
Poster Presentation
Campus: 
University Park
Faculty Sponsor: 
Stephen Chmely
Poster Number: 
17012