摘要
合成了一种基于羧基功能化的苯并咪唑类有机凝胶因子(C11).该凝胶因子在水-乙醇体系中不仅能自组装成超分子有机凝胶(C11-OG),而且与银离子络合后可以自组装成具有多重刺激响应性能的金属凝胶(Ag-MG).有机凝胶C11-OG和金属凝胶Ag-MG都具有凝聚态荧光增强(AIEE)的性能.金属凝胶Ag-MG可对温度、EDTA和Na_2S的刺激进行可逆的溶液-凝胶变化响应及荧光响应.此外,通过扫描电镜(SEM)、X射线衍射(XRD)和红外光谱(FT-IR)研究了其刺激响应机理.
In this paper,a simple carboxylic-functionalized benzimidazole gelator(C11)is prepared.This gelator can self-assembled to supramolecular organogel and metallogel(C11-OG and Ag-MG)in EtOH-H_2 O with multi-stimuli responsive properties.Besides,the organogel C11-OG and metallogel Ag-MG have dramatic aggregation-induced fluorescence emission enhancement(AIEE).The Ag-MG reveals outstanding reversible sol-gel transitions and fluorescent changes induced by changing of temperature,EDTA and Na_2 S.In addition,the stimuli-responsive mechanism is tested by SEM,XRD and FT-IR.
引文
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