Polymeric Chemosensors: A Conventional Platform with New Click Chemistry
Polymeric Chemosensors: A Conventional Platform with New Click Chemistry
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DOI：
10.1246/bcsj.20170294
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发表时间：
2017-10
影响因子：
4
通讯作者：
Yang Wang;T. Michinobu
中科院分区：
文献类型：
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作者：
Yang Wang;T. Michinobu
聚合物是生产各种功能材料的良好平台，因为功能基团可以通过优雅的分子设计和高效的合成方案引入到主链，主链和侧链垂坠中。高着色和荧光π系经常被用作离子传感单元，特别是当杂芳环被包括在内时。杂芳环可与金属离子或阴离子形成超分子配合物，引起吸收和荧光的视觉颜色变化。共轭聚合物传统上用于此目的，因为它们具有高发射性并且对各种离子非常敏感。然而，这些共轭聚合物大多是通过昂贵的交叉偶联缩聚合成的，不符合本世纪绿色化学的概念。点击化学是一个代表高效和原子经济合成的新概念，其中最常见的反应是Cu(I)催化叠氮-炔环加反应。
Polymers are a good platform for the production of various functional materials, since functional moieties can be introduced into both the main chain backbone and side chain pendants by elegant molecular design and utilizing efficient synthetic protocols. Highly colored and fluorescent π-systems have often been employed as ion sensing units especially when heteroaromatic rings are included. The heteroaromatic rings can form supramolecular complexes with metal ions or anions, resulting in the visual color changes of absorption and fluorescence. Conjugated polymers have been traditionally employed to this end, because they are highly emissive and very sensitive to various ions. However, most of such conjugated polymers are synthesized by costly cross-coupling polycondensations, which do not meet the green chemistry concepts of this century. Click chemistry is a new concept representing an efficient and atom-economic synthesis, and one of the most common reactions is the Cu(I)-catalyzed azide-alkyne cycloadd...