Cellulose https://doi.org/10.1007/s10570-018-1863-7 ORIGINAL PAPER Role of low-concentration acetic acid in promoting cellulose dissolution . . . Yang Hu Vidura D. Thalangamaarachchige Sanjit Acharya Noureddine Abidi Received: 12 January 2018 / Accepted: 21 May 2018 Springer Science+Business Media B.V., part of Springer Nature 2018 Abstract In this study, we report on a new strategy and interact with inter and intra molecular hydrogen using low-concentration acetic acid (LCAA) to pro- bonds of cellulose. Understanding the role of LCAA in mote cellulose dissolution. High-molecular-weight the dissolution of cellulose is of particular interest in (HMW) cotton cellulose (DP [ 5000) was simply developing a new concept to design new solvents and soaked in a dilute acetic acid aqueous solution effective strategies for cellulose dissolution. (1 vol%) prior to dissolution. Using N,N-dimethylac- etamide/lithium chloride as the solvent system, the Keywords High-molecular-weight cellulose dissolution of LCAA-activated cellulose was signiﬁ- Rheology Low-concentration acetic acid cantly improved. Material characterization results Co-solvent DMAc/LiCl indicated that no cellulose acetylation occurred during the dissolution process and the acetic acid could be easily removed during cellulose regeneration. It was also noticed that using LCAA to activate cellulose Introduction signiﬁcantly reduced the viscosity of cellulose solu- tion and promoted the
Cellulose – Springer Journals
Published: May 28, 2018
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