Synthesis of an amphiphilic copolymer bearing rhodamine moieties and its self-assembly into micelles as chemosensors for Fe³⁺ in aqueous solution

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• 作者：Yu Wang ; Haiqiang Wu ; Jing Luo ; ^{jingluo19801007@126.com} ; Xiaoya Liu ; ^{lxyjiangnan@126.com}
• 关键词：Amphiphilic copolymer ; Micelles ; Rhodamine 6G ; Chemosensor
• 刊名：Reactive and Functional Polymers
• 出版年：2012
• 出版时间：March, 2012
• 年：2012
• 卷：72
• 期：3
• 页码：169-175
• 全文大小：1083 K

文摘

We report on the fabrication of an amphiphilic random copolymer-based colorimetric and fluorescent chemosensor for Fe³⁺ ions that was prepared by free radical polymerization of a novel rhodamine-based Fe³⁺-recognizing monomer, R6GEM, with N-vinylpyrrolidone (NVP). Because of its amphiphilic property, the copolymer P(NVP-co-R6GEM) can self-assemble into micelles, which allows it to be used as a chemosensor in aqueous solution. Upon addition of Fe³⁺ ions to the micelle solution, visual color change and fluorescence enhancement were observed. Moreover, other metal ions did not induce obvious changes to the absorption and fluorescence spectra. The water dispersibility and biocompatibility of these polymer micelles could provide a new strategy for detecting analytes in environmental and biological systems.