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Synthesis of One-Dimensional Schiff Base Polymers that Contain an Oligothiophene Building Block on the Graphite Surface

机译:在一维石墨表面上包含寡聚噻吩结构单元的一维席夫碱聚合物的合成

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摘要

Surface-mediated Schiff base coupling reactions between oligothiophenes equipped with an aldehyde group and aromatic diamines were investigated on highly oriented pyrolytic graphite (HOPG) by means of scanning tunneling microscopy (STM) under ambient conditions. To investigate the evolution process from monomers to resultant polymers and the mechanism of reactions, we controlled the ratio of precursors and the reactive temperature, and we obtained high-resolution STM images of different stages of the surface reaction. The results suggest that preferential adsorption of one kind of monomer has a great influence on the onsurface Schiff base reaction.
机译:在环境条件下,通过扫描隧道显微镜(STM),在高度取向的热解石墨(HOPG)上研究了具有醛基的低聚噻吩与芳族二胺之间的表面介导的席夫碱偶联反应。为了研究从单体到最终聚合物的演化过程以及反应机理,我们控制了前体的比例和反应温度,并获得了表面反应不同阶段的高分辨率STM图像。结果表明,一种单体的优先吸附对表面席夫碱反应有很大的影响。

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