【摘要】 利用γ辐射聚合法（总剂量３ｋＧｙ，剂量率３８．４Ｇｙ／ｍｉｎ）以ＮＩＰＡＡｍ和ＡＡｃ为单体在ＴＨＦ溶液中制备了二元线型共聚物，红外光谱证实了线型共聚物中羧基的存在；性质测定表明此共聚物具有温度敏感性，其相转变温度（ＬＣＳＴ）值随体系ｐＨ值而升高；利用这种共聚物对水溶液中微量Ｅｒ３＋、ＵＯ２＋２、Ｃｒ（Ⅵ）离子进行浓集分离研究，表明具有较好的浓集与分离效果，并对浓集机理进行了探讨更多还原

【Abstract】 Binary linear copolymers,poly NIPAAmAAc,are synthesized by radiation copolymerization (total dose 3kGy,dose rate 38.4 Gy/min at room temperature) in THF solutions of Nisopropylacrylamide (NIPAAm) and acrylic acid (AAc) with ratio of 9:1 (w/w).The product synthesized in this work is white powder and possessed thermal sensitivity. Concentration of Er3+,UO2+2 and Cr() in dilute aqueous solutions is studied by using the synthesited poly NIPAAmAAc.The conditions of concentration of Er3+,UO2+2 and Cr() in dilute aqueous solutions are given and the mechanism was discussed.更多还原