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

文献类型： 外文期刊

作者： Wei, Xiaoyi 1 ; Chang, Gang 1 ; Li, Jihua 1 ; Wang, Fei 1 ; Cui, Lihong 1 ; Fu, Tiaokun 1 ; Kong, Lingxue 2 ;

作者机构： 1.Chinese Acad Trop Agr Sci, Agr Prod Proc Res Inst, Zhanjiang 524001, Peoples R China

2.Deakin Univ, Inst Frontier Mat, Waurn Ponds, Vic 3216, Australia

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 ）

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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.

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[1]Functional Cellulose by Microwave Initiated Grafting Polymerization in Homogeneous Media. Chang, Gang,Fu, Tiaokun,Wei, Xiaoyi,Li, Jihua,Wang, Fei,Feng, Haiyan. 2016

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