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    姜思思, 苟超, 吴海强, 王宝清, 罗静, 刘晓亚. 水溶性大分子汞离子荧光-比色探针RhBH-P(VP-co-GMA)的合成与性能[J]. 功能高分子学报, 2011, 24(4).
    引用本文: 姜思思, 苟超, 吴海强, 王宝清, 罗静, 刘晓亚. 水溶性大分子汞离子荧光-比色探针RhBH-P(VP-co-GMA)的合成与性能[J]. 功能高分子学报, 2011, 24(4).
    JIANG Si-si, GOU Chao, WU Hai-qiang, WANG Bao-qing, LUO Jing, LIU Xiao-ya. Synthesis and Photophysical Behaviors of WaterSoluble Copolymer as Chemosensor for Hg2+ in Aqueous Solution[J]. Journal of Functional Polymers, 2011, 24(4).
    Citation: JIANG Si-si, GOU Chao, WU Hai-qiang, WANG Bao-qing, LUO Jing, LIU Xiao-ya. Synthesis and Photophysical Behaviors of WaterSoluble Copolymer as Chemosensor for Hg2+ in Aqueous Solution[J]. Journal of Functional Polymers, 2011, 24(4).

    水溶性大分子汞离子荧光-比色探针RhBH-P(VP-co-GMA)的合成与性能

    Synthesis and Photophysical Behaviors of WaterSoluble Copolymer as Chemosensor for Hg2+ in Aqueous Solution

    • 摘要: 采用活性基团修饰法,通过罗丹明B酰肼(RhBH)与乙烯基吡咯烷酮-甲基丙烯酸缩水甘油酯共聚物(P(VP-co-GMA))侧链上环氧基团的开环反应,制得一种键合有罗丹明B酰肼的水溶性聚合物RhBH-P(VP-co-GMA)。在水溶液中,该聚合物本身无色且无荧光,加入汞离子后,罗丹明的螺环结构打开,出现显著的荧光增强和颜色变红,实现了在水溶液中对汞离子的“关开”荧光检测和裸眼检测。在此条件下,其他共存离子没有明显响应。研究表明:该聚合物是一种高选择性的Hg2+探针,可以实现水溶液中的汞离子检测。

       

      Abstract: A novel watersoluble copolymer RhBH-P(VP-co-GMA) bearing rhodamine B hydrazine (RhBH) was prepared by ringopening reaction between RhBH and a watersoluble copolymer P(VPcoGMA) which was synthesized by radical polymerization of N-vinyl pyrolidone (VP) and glycidyl methacrylate (GMA). Upon addition of Hg2+, the spirocyclic ring of RhBH-P(VP-co-GMA) was opened and a significant fluorescence enhancement as well as colorimetric change was observed, which allowed to detect Hg2+ in aqueous solution by both fluorescence technique and naked eye. In addition, the feeding of other transition metal ions has no interference, which shows RhBH-P(VP-co-GMA) is a highly selective macromolecular probe for detection of Hg2+ in aqueous solution.

       

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