With the increasing of NIPAm content, the salicylic acid loading ratio of P(NIPAm-co-AAm) andPAAc/P(NIPAm-co-AAm) inceased, and releasing ratio deceased.

• 随NIPAm含量的增大,P(NIPAm-co-AAm)凝胶对水杨酸钠的载药率增大,释药率增大;