摘要
A mixture of dimethyl sulfoxide (DMSO) and N,N-diethyl-N-(2-methoxyethyl)-N-methylammonium alanine ([N-221ME][Ala]) dissolved cellulose at rt; the solubility of cellulose depended on the content of the ionic liquid in DMSO and reached 23 wt % (vs. solvent) in a 1:1 mixture. The solution coagulated in water or ethanol to obtain a transparent regenerated cellulose in quantitative yield.
- 出版日期2012-9-5