Cellulose solutions in NaOH/water and ionic liquid (EMIMAc): Similarities and differences

Tatiana Budtova (1) , Martin Gericke (1, 2) , Magali Egal (1) , Cédric Roy (1) , Patrick Navard (1) , Thomas Heinze (3) , Tim Liebert (3)

1 CEMEF - Centre de Mise en Forme des Matériaux
2 Centre of Excellence for Polysaccharide Research
3 Research Centre for Medical Technology and Biotechnology GmbH

The understanding of the flow of cellulose solutions as well as their molecular organisation is a crucial need for a successful processing. The flow and molecular characteristics of cellulose solutions, cellulose/(7-9)%NaOH/water and cellulose/1-N-ethyl-3-methyl-imidazolium acetate (EMIMAc) were investigated and compared. Viscosity-cellulose concentration and viscosity-temperature dependences were built. Intrinsic viscosities were obtained considering solutions in dilute regime. Temperature increase leads to the decrease of both solvents thermodynamic quality.

Mots clés: cellulose

Domaines: Matériaux

Tatiana Budtova, Martin Gericke, Magali Egal, Cédric Roy, Patrick Navard, et al.. Cellulose solutions in NaOH/water and ionic liquid (EMIMAc): Similarities and differences. 235th American-Chemical-Society National Meeting, Apr 2008, New Orleans, LA, United States. pp.CELL 196. ⟨hal-00509576⟩