Surface analysis of the grafted membrane by ATR-FTIR and ESCA and the water contact angle confirmed that N-methylene phosphonic chitosan (MPCS) were successfully grafted onto the chitosan membrane.

• 壳聚糖本身具有较强的凝血作用，但是，当对壳聚糖进行适当改性后，其凝血作用会转变为抗凝血作用。