On the dissolution of cellulose in tetrabutylammonium acetate/dimethyl sulfoxide: a frustrated solvent
作者： Alexander Idström , Luigi Gentile , Marta Gubitosi , Carina Olsson , Björn Stenqvist
DOI: 10.1007/S10570-017-1370-2
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摘要: We have found that the dissolution of cellulose in binary mixed solvent tetrabutylammonium acetate/dimethyl sulfoxide follows a previously overlooked near-stoichiometric relationship such one dissolved acetate ion is able to dissolve an amount corresponding about glucose residue. The structure and dynamics resulting solutions were investigated using small-angle X-ray scattering (SAXS) nuclear magnetic resonance techniques as well molecular simulation. This yielded detailed picture mechanism which ions form hydrogen bonds causes diffuse solvation sheath bulky counterions form. In turn, this leads steric repulsion helps keep chains apart. Structural similarities aqueous hydroxide revealed by SAXS measurement. To what extent corresponds discussed.
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