New solvents for cellulose: dimethyl sulfoxide/ammonium fluorides.

  title={New solvents for cellulose: dimethyl sulfoxide/ammonium fluorides.},
  author={Sarah K{\"o}hler and Thomas Heinze},
  journal={Macromolecular bioscience},
  volume={7 3},
New solvents based on DMSO in combination with alkylammonium fluorides, in particular TBAF . 3H(2)O and BTMAF . H(2)O, were established as media for homogeneous functionalization of cellulose. Even DMSO in combination with freshly prepared, anhydrous TBAF, obtained by the reaction of tetrabutylammonium cyanide and hexafluorobenzene, dissolves cellulose. In contrast, a mixture of DMSO and tetramethylammonium fluoride does not dissolve cellulose. The solvents were characterized by capillary… CONTINUE READING


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