Physicochemical Characterization of Thermally Treated Chitosans and Chitosans Obtained by Alkaline Deacetylation

Table 2

Viscosity parameters of chitosans (for references and discussion, see Roberts [8]).

Code	Mv (g mol^−1)	Solvent	K (dm^3/g)	a
1	113,000–492,000	0.2 mol dm^−3 HOAc, 0.1 mol dm^−3 NaCl, 4 mol dm^−3	0.893 × 10^−4	0.71
2	90,000–1,140,000	0.1 mol dm^−3 HOAc, 0.2 mol dm^−3 NaCl	0.181 × 10^−5	0.93
3	13,000–135,000	0.33 mol dm^−3 HOAc, 0.3 mol dm^−3 NaCl	0.341 × 10^−5	1.02