title: Photopolymerisation and characterization of maleylatedcellulose-g-poly(acrylic acid) superabsorbent polymer.
abstract: A novel biodegradable superabsorbent polymer has been prepared from maleylated cotton stalk cellulose (MCSC) crosslinker and acrylic acid (AA) by ultraviolet (UV) photopolymerization in aqueous solution at room temperature, and irgacure 651 as a photoinitiator. The resulting superabsorbent was characterized by FT-IR, (1)H NMR, SEM and TGA. The effects of preparation conditions such as degree of substitution (DS), amount of maleylated cotton stalk cellulose, exposed time, photoinitiator amount and monomer concentration on the water absorbency and the monomer conversion in graft were evaluated. The swelling kinetics, salt-resistance, water retention capacity and biodegradability of the MCSC-g-PAA superabsorbent were investigated. It was found that, the obtained superabsorbent have good swelling degree that greatly affected by its composition and preparation conditions. Owing to its considerable good water retention capacity, being economical and environment-friendly, it might be useful for its application in agriculture field.
authors.affiliation: Key Laboratory of Oil and Gas Fine Chemicals, Educational Ministry of China, School of Chemistry and Chemical Engineering, Xinjiang University, Urumqi 830046, China.
authors.forename: Amatjan
authors.initials: A
authors.lastname: Sawut
authors.forename: Mamatjan
authors.initials: M
authors.lastname: Yimit
authors.forename: Wanfu
authors.initials: W
authors.lastname: Sun
authors.forename: Ismayil
authors.initials: I
authors.lastname: Nurulla
mesh_terms: D000042:Absorption; D000180:Acrylic Resins / Q000737:chemistry*; D002482:Cellulose / Q000737:chemistry*; D003368:Gossypium / Q000737:chemistry; D006863:Hydrogen-Ion Concentration; D008299:Maleic Anhydrides / Q000737:chemistry; D055668:Photochemical Processes; D058105:Polymerization; D014867:Water / Q000737:chemistry
chemical_list: D000180:Acrylic Resins; D008299:Maleic Anhydrides; D014867:Water; C006903:carbopol 940; D002482:Cellulose
keywords: Acrylic acid; Maleylated cotton stalk cellulose; Superabsorbent; Ultraviolet photopolymerisation