The polyelectrolyte sponges(CSAL) were satisfactorily prepared by freeze-drying the mixing solution of chitosan(CS) and sodium alginate(AL).

• 将壳聚糖(CS)和海藻酸钠(AL)溶液混合,利用冷冻干燥的方法成功地制备出CSAL聚电解质海绵。