Aggregate Structure and Rheological Properties of Mercerized Cellulose / LiCl·DMAc Solution

• DOI: 10.1678/rheology.32.169
• Publication Date: 2004-12-13T06:03:18Z
• Authors: Hajime Aono; Nobutake Tamai; Daisuke Tatsumi; Takayoshi Matsumoto
• Keywords: 02 engineering and technology; 0210 nano-technology

The effect of mercerization on the cellulose solution was investigated in terms rheological and dilute properties 8 wt % LiCl/N,N-dimethylacetamide (DMAc). Cotton lint, cotton linter, dissolving pulp were used for native samples. Static light scattering (SLS) measurements show that second virial coefficient, A2, solutions decreased by mercerization, indicating affinity between solvent molecules mercerization. A long time relaxation found only mercerized viscoelastic semidilute solutions. This indicates some heterogeneous structures formed solution. Some aggregate structures, which have slow decay time, observed 0.5 dynamic (DLS) measurements. According to these results, low makes LiCl·DMAc above overlap concentration.