含金屬配位與主客體相互作用之多重響應可控制之超分子聚合物

Abstract

本論文成功設計合成出以聚集誘導發光為基礎的一種多刺激響應的金屬結合型超分子高分子網絡，藉由金屬配位相互作用形成正交集合和具有三聯吡啶共軛之官能基的雙苯環-24-冠-8(DB24C8)分子作為主體與具有四苯基乙烯官能基之衍生物作為客體建構而成。 金屬結合型超分子高分子網絡與四苯基乙烯官能基之衍生物之主客體相互作用，並藉由改變甘油與二甲基亞碸混合之比例觀察其聚集誘導發光之現象。 並且不同於以往所建構超分子高分子類型，這是一種新穎的超分子高分子可以藉由酸鹼控制與可逆的超分子相互作用造成其螢光放射訊號之可逆現象。 這種想法與設計超分子高分子可以藉由切換成聚集誘導發光藉以克服一般之超分子聚合物聚集而引起螢光猝滅的問題，並提供了一個新的概念來開發智能超分子聚合材料。

A multi-stimuli responsive metallosupramolecular polymer network was constructed by the orthogonal assembly of metal-ligand interaction and conjugated terpyridine functionalized dibnzo-24-crown-8 (DB24C8) host and a tetraphenylethylene derivative as a guest with based aggregation-induced emission (AIE) property is fabricated successfully. Investigations on their AIE behaviors of metallosupramolecular polymer network their corresponding guests by using various glycerol fractions of DMSO and glycerol mixtures. Consecutively, quite different from usual supramolecular polymers constructed before, this novel supramolecular polymer of reversible fluorescence emission are realized by acid-base controllable and reversible supramolecular interactions. This strategy to design supramolecular polymers with switchable AIE property overcomes the common problem of aggregation-caused quenching (ACQ) in usual supramolecular polymers and provides a new concept to develop smart supramolecular polymeric materials.