Dissolution, crystallisation and regeneration of cellulose in Nmethylmorpholine N-oxyde

Olga Biganska (1) , Patrick Navard (1)

1 CEMEF - Centre de Mise en Forme des Matériaux

Mixtures of N-methylmorpholine N-oxyde (NMMO) and water are direct solvents for cellulose, used for processing fibres (Lyocell process). The objective of this work is to study three aspects of the preparation of cellulose objects from NMMO-water solutions, the NMMO-water phase diagram in order to follow the dissolution-swelling path, the crystallisation of the cellulose solution that may occur under cooling and the regeneration of the cellulose from a solution.

Mots clés: Dissolution; crystallisation; cellulose

Domaines: Matériaux

Olga Biganska, Patrick Navard. Dissolution, crystallisation and regeneration of cellulose in Nmethylmorpholine N-oxyde. MACRO-2004 International Conference on Polymers for Advanced Technologies, Dec 2004, Thiruvananthapuram, India. 6 p. ⟨hal-00579382⟩