Wang Jian-Ping, Chen Yong-Zhen, Ge Xue-Wu, Yu Han-Qing
Department of Chemistry, University of Science and Technology of China, Laboratory of Environmental Engineering, Hefei, Anhui 230026, China.
Chemosphere. 2007 Jan;66(9):1752-7. doi: 10.1016/j.chemosphere.2006.06.072. Epub 2006 Aug 10.
Grafting of (2-methacryloyloxyethyl) trimethyl ammonium chloride onto chitosan through gamma-radiation in acidic aqueous solutions was achieved for production of a novel flocculant. The grafted copolymer was characterized by Fourier-transform infrared, X-ray powder diffraction and thermogravimetric analysis. The effects of reaction parameters, such as total absorbed dose, dose rate, monomer concentration and temperature, on grafting percentage were investigated. The flocculation capacities of the grafted copolymer were evaluated with 0.25% (w/v) kaolin suspensions using the standard jar test. The results demonstrate the superiority of the grafted copolymer over chitosan as a flocculant.
通过在酸性水溶液中进行γ辐射，将（2-甲基丙烯酰氧基乙基）三甲基氯化铵接枝到壳聚糖上，以制备一种新型絮凝剂。通过傅里叶变换红外光谱、X射线粉末衍射和热重分析对接枝共聚物进行了表征。研究了总吸收剂量、剂量率、单体浓度和温度等反应参数对接枝率的影响。使用标准搅拌试验，以0.25%（w/v）高岭土悬浮液评估接枝共聚物的絮凝能力。结果表明，作为絮凝剂，接枝共聚物优于壳聚糖。
