Preparation of pH- and salinity-responsive cellulose copolymer in ionic liquid

文献类型: 外文期刊

第一作者: Wei, Xiaoyi

作者: Wei, Xiaoyi;Chang, Gang;Li, Jihua;Wang, Fei;Cui, Lihong;Fu, Tiaokun;Kong, Lingxue

作者机构:

关键词: Cellulose;2-(Dimethylamino) ethylmethacrylate;pH- and salinity-responsive;Homogeneous grafting

期刊名称:JOURNAL OF POLYMER RESEARCH ( 影响因子:3.097; 五年影响因子:2.599 )

ISSN:

年卷期:

页码:

收录情况: SCI

摘要: A novel biodegradable pH- and salinity-responsive cellulose copolymer was prepared by grafting 2-(Dimethylamino) ethylmethacrylate (DMAEMA) onto bagasse cellulose in ionic liquid. The grafting polymerization was achieved in 1-butyl-3-methylimidazolium chloride ([Bmim]Cl) under microwave irradiation. Copolymers were then characterized by Fourier transform infrared spectroscopy, scanning electron microscopy, X-ray diffraction and thermo gravimetric analysis measurements. The results revealed that polymer chains had been successfully bonded to the cellulose backbone. Furthermore, the self-assembly of cellulose-g- DMAEMA copolymers at various salt concentrations and pH solution were investigated by means of swelling behavior measurement. It indicated that the copolymers presented dual pH and salinity-responsive properties. The synthetic strategy showed great potential in the modification of other cellulosic biomass to afford new biomaterials with desired properties.

分类号: O6

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