title: Manganese-containing cellulose nanocomposites: the restrain effect of cellulose treated with NaOH/urea aqueous solutions.
abstract: In this article, the manganese-containing cellulose nanocomposites were obtained using microcrystalline cellulose and Mn(CH3COO)2 · 4H2O in the NaOH/urea aqueous solutions by a efficient microwave-assisted method. The effects of the heating time and Mn(CH3COO)2 · 4H2O concentration on the cellulose nanocomposites were investigated. It was found that the microcrystalline cellulose pretreated with NaOH/urea aqueous solutions played an important role in the phase, shape, and thermal stability of manganese-containing cellulose nanocomposites. Well-crystalline phases of manganese oxides were not observed in the manganese-containing cellulose nanocomposites. Furthermore, well-crystalline phases of manganese oxides were not also observed by thermal treatment of the manganese-containing cellulose nanocomposites at 600 °C for 3h. These results could be attributed to the restrain effect of cellulose treated with NaOH/urea aqueous solutions. It was supposed the possible mechanism during the phase transformation of cellulose nanocomposites.
authors.affiliation: Beijing Key Laboratory of Lignocellulosic Chemistry, College of Materials Science and Technology, Beijing Forestry University, Beijing 100083, PR China. Electronic address: mg_ma@bjfu.edu.cn.
authors.forename: Ming-Guo
authors.initials: MG
authors.lastname: Ma
authors.affiliation: Beijing Key Laboratory of Lignocellulosic Chemistry, College of Materials Science and Technology, Beijing Forestry University, Beijing 100083, PR China.
authors.forename: Fu
authors.initials: F
authors.lastname: Deng
authors.affiliation: Beijing Key Laboratory of Lignocellulosic Chemistry, College of Materials Science and Technology, Beijing Forestry University, Beijing 100083, PR China.
authors.forename: Ke
authors.initials: K
authors.lastname: Yao
mesh_terms: D002482:Cellulose / Q000737:chemistry*; D008345:Manganese / Q000737:chemistry*; D053761:Nanocomposites / Q000737:chemistry*; D012972:Sodium Hydroxide / Q000737:chemistry*; D012996:Solutions; D014508:Urea / Q000737:chemistry*
chemical_list: D012996:Solutions; D008345:Manganese; D012972:Sodium Hydroxide; D014508:Urea; D002482:Cellulose; C109691:microcrystalline cellulose
keywords: Cellulose; Manganese; Microwave; NaOH/urea; Nanocomposites; Restrain effect