辐射交联聚丙烯腈偕胺肟纤维的制备及其对钒(Ⅲ)的吸附研究  

Amidoxime Reaction of Radiation Crosslinking Polyacrylonitrile Fiber and Its Adsorption of V(Ⅲ) Ions

作　　者：卢丽丽[1] 刘伟华[2] 吴国忠[2] 王谋华[2] 王幸宜[1] 李到[1] 

机构地区：[1]华东理工大学工业催化研究所,上海200237 [2]中国科学院上海应用物理研究所,上海201800

出　　处：《化学世界》2013年第4期207-210,共4页Chemical World

摘　　要：采用60Coγ射线对聚丙烯腈纤维进行预辐射交联,并经偕胺肟化反应,制备了含有偕胺肟基的聚丙烯腈螯合纤维,用于钒(Ⅲ)离子的吸附行为研究。结果表明,辐射交联可以有效提高聚丙烯腈纤维的肟胺化反应速率;经肟胺化和吸附之后的纤维力学性能良好;较高的肟胺化程度导致聚丙烯腈纤维对三氯化钒具有很高的吸附容量。Chelating fibers containing amidoxime groups were prepared by oxime amination reaction of γ-ray （^60Co） irradiation cross-linked polyacrylonitrile fibers, and used for the adsorption of V（Ⅲ） ions in VCl3 aqueous solution. The experimental results showed that the oxime amination reaction rate of polyacrylonitrile fibers was promoted by the radiation crosslinking, during which the nitrile groups were converted into amidoxime groups. Moreover, after amidoxime reaction the fiber presented good mechanical properties and adsorption behaviors. A high adsorption capacity of vanadium trichloride was related to a higher degree of oxime amination.

关 键 词：聚丙烯腈纤维 辐射交联 偕胺肟化反应 吸附 三氯化钒 

分 类 号：O632.62[理学—高分子化学]