高吸水性树脂

用热力学理论和相转变理论阐明了高吸水性树脂的吸水机理。解释了高分子链上的电荷密度、外界溶液离子强度以及交联度对吸水倍数的影响，并指出了影响吸水速率的因素。介绍了淀粉类、纤维素类、共聚合类、复合类以及可生物降解类高吸水性树脂近30年来的研究状况以及存在的问题，简要介绍了高吸水性树脂的应用。

Superabsorbent Polymer

The mechanism of high water absorbency of superabsorbent polymers was explained according to thermaldynamic theory and phase transition theory.Water absorbency was interpreted in terms of the presence of ionic groups on the backbone, ionic strength in external solution,as well as crosslinking density. Factors that affect water absorbent rate were presented. The development of super water absorbents based on starch, cellulose,copolymer, composite and biodegradable polymer during the last thirty years was describled.The tendency of the research of superabsorbent polymer was predicited and the application of super water absorbents was briefly introduced.