Strict Size Specificity in Colorimetric Anion Detection Based on Poly(phenylacetylene) Receptor Bearing Second Generation Lysine Dendrons
作者:Ryosuke Sakai、Naoya Sakai、Toshifumi Satoh、Wen Li、Afang Zhang、Toyoji Kakuchi
DOI:10.1021/ma200710r
日期:2011.6.14
Poly(phenylacetylene) bearing second generation lysine dendrons through urea groups (poly-2) was demonstrated to be a superior anion receptor possessing strict size specificity in colorimetric anion detection. On the basis of the comparison of the colorimetric response behavior between poly-2 and poly-1, which is poly(phenylacetylene) bearing first generation lysine dendrons, the size of the pendant
通过尿素基团(poly- 2)带有第二代赖氨酸树突的聚(苯基乙炔)被证明是在比色阴离子检测中具有严格的尺寸特异性的高级阴离子受体。在比较poly- 2和poly- 1(即带有第一代赖氨酸树突的聚(苯乙炔))之间的比色响应行为的基础上,暗示了悬垂树突的大小决定了比色阴离子检测的选择性。各种仪器分析,其中包括11 H NMR,光散射和粘度测量得出的结论是,在尿素受体附近,庞大的G2树突的结合在赋予poly- 2阴离子传感能力严格的尺寸特异性方面起着至关重要的作用。