Department;
of;
Pharmaceutical;
Engineering,;
School;
of;
Chemistry;
Engineering,;
Wuhan;
University;
of;
Technology,;
Wuhan;
430070,;
China;
School;
of;
Chemistry;
and;
Chemical;
Engineering,;
Huazhong;
University;
of;
Science;
and;
Technology,;
Wuhan;
430074,;
China;
聚丙烯酸凝胶; 接枝共聚反应; 溶胀行为; 给药系统; 壳聚糖; 结肠; 定位; 体外降解;