Facile sulfation of cellulose via recyclable ternary deep eutectic solvents for low-cost cellulose nanofibril
Guangrui Ma1, Zhiguo Zhang1, Jiachuan Chen1
1State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology (Shandong Academy of Sciences) Jinan Shangdong Province 250353 People's Republic of China heming8916@qlu.edu.cn.
Abstract:
Here we present a new method to treat cellulose with a sulfamic acid-urea-choline chloride (ternary deep eutectic solvent) system, which can realize both swelling and sulfation of cellulose. This can greatly reduce the energy consumption in the process of cellulose nanoization, and use it to successfully prepare food packaging films for eliminating odors. We hope that due its simplicity and resource-efficiency, this method will have a widespread influence on currently used (nano) cellulose modification protocols.
