Carboxymethyl chitosan(CMC) with high substitution degree(.9 ) was synthesized by aprotic solvent(DMSO-H_O) method from chitosan(CTS) and chloroacetic acid at 0 ℃ for h.

Carboxymethyl chitosan(CMC) with high substitution degree(.9 ) was synthesized by aprotic solvent(DMSO-H_O) method from chitosan(CTS) and chloroacetic acid at 0 ℃ for h.

用非质子溶剂法,以DMSO-HO为溶剂,在碱性条件下壳聚糖(CTS)与氯乙酸反应,制得取代度为.9 的羧甲基壳聚糖(CMC)。