STRUCTURE OF REGENERATED CELLULOSE FIBERS FROM DMAC LICL SOLUTION/

Solutions of cellulose (Cell) in dimethylacetamide (DMAc)/lithium chlo ride (LiCl) solvent are spun and annealed. The resulting fibers show v arious polymorphs with the different coagulants and annealing temperat ures. Prior to annealing, as-spun fibers show Cell III morphology with out differentiating the kind of coagulants. Fibers annealed at 170 deg rees C show Cell IV morphology and have better tensile strength than f ibers annealed at 190 degrees C, which show Cell III morphology.