“…sponge, cotton, wood pulp and colloidal silica, etc. ), superabsorbents have been extensively applied in many fields such as hygienic products (Kosemund et al, 2009), agriculture (Doane & Doane, 2005;Liang, Yuan, Xi, & Zhou, 2009;Puoci et al, 2008) wastewater treatment (Kaş göz & Durmus, 2008;Kaş göz, Durmuş , & Kaş göz, 2008;Wang, Zhang, & Wang, 2008) and drug-delivery systems (Sadeghi & Hosseinzadeh, 2008;Wang, Zhang & Wang, 2009), etc. However, there are limitations to such applications because most of superabsorbents used as disposable particles are based on fully petroleum-based polymers with high production cost and serious environment impact (Kiatkamjornwong, Mongkolsawat, & Sonsuk, 2002).…”