1.
Carbohydr Res
; 340(7): 1351-6, 2005 May 23.
Article
in English
| MEDLINE
| ID: mdl-15854605
ABSTRACT
Carboxymethyl chitosan was prepared by reacting chitosan with chloroacetic acid in water under microwave irradiation. The effect of the reaction conditions was investigated and optimal conditions were identified. The influence of mass ratio of chloroacetic acid to chitosan, microwave power and pH on the degree of substitution or intrinsic viscosity were further studied. The degree of substitution of the carboxymethyl chitosan synthesized exceeded 0.85.