On the Specific Behaviour of Native Cellulose Fibers upon Dissolution
Résumé
This chapter deals with a description of the mechanisms of swelling and dissolution of native cellulose fibers at the different scale of the fiber structure, i.e. from the walls to the macromolecular chains. New observation by scanning electron microscopy of the cellulose fibers after regeneration upon dissolution suggest that the structural transition between primary wall and S1 wall is very sharp. The distribution of precipitated cellulose around swelling fibers shows that cellulose chains are escaping the fiber at an early stage of the dissolution process.