Guanidyl acetic acid chitosan has been synthesized with self-made chitosan and 1-chloro-glycocyamine,and its hydroscopicity and moisture retentive ability have been measured consequently.

• 以自制壳聚糖和1-氯胍乙酸为原料合成胍乙酸壳聚糖,并对其进行吸湿保湿性能测定。