N-羧丁酰基-O-羧甲基壳聚糖 1. A new type of high efficiency moisturizer,N-carboxybutyryl-O-carboxymethyl chitosan (CB-CMCS) was synthesized. 通过分子设计,合成了一种新型高效的保湿剂,N-羧丁酰基-O-羧甲基壳聚糖(CB-CMCS),其吸湿保湿效果优于透明质酸。5...