Two polymer were synthesized by copolymerization of acrylamide(AM) ,acrylic acid(AA),acrylo-nitrile(AN).They were used as absorbent for fresh water or salt water each.

• 采用丙烯酰胺(AM)、丙烯酸(AA)、丙烯腈(AN)三元共聚法合成了两种分别适于淡水和盐水的吸水膨胀聚合物。