期刊
CHEMISTRY-A EUROPEAN JOURNAL
卷 21, 期 18, 页码 6898-6905出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.201406287
关键词
adsorption; oligothiophenes; polymers; scanning probe microscopy; Schiff bases
资金
- National Science Foundation of China [21173061, 21373070, 21403266]
- Open Project of State Key Laboratory of Supramolecular Structure and Materials (JLU) [SKLSSM201432]
- Natural Science Foundation of Shandong Province [ZR2014EMQ001]
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.
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