Abstract:Environment responsive superabsorbent can produce rapid response in the face of external stimulation and make changes in physical structure and swelling performance, which is expected to be applied in artificial muscles, drug controlled release carriers, adsorption and separation, fine coal dehydration and other fields. With the development of science and technology, new requirements and applications for the structure and properties of environment responsive superabsorbent have been put forward. This review briefly introduces the research progress of environment responsive superabsorbent in recent years. The response mechanism, research level and application of four kinds of superabsorbents with different sensitive types (temperature, pH, salt and magnetic) are mainly introduced. Finally, The key scientific problems to be solved in the application-oriented research of environmental responsive superabsorbent are discussed. It is proposed that the preparation of superabsorbent with multiple response mechanisms and mechanical properties can accelerate the transition from basic laboratory research to practical industrial application.