Journal
LANGMUIR
Volume 25, Issue 15, Pages 8548-8555Publisher
AMER CHEMICAL SOC
DOI: 10.1021/la803436h
Keywords
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Funding
- Nature Science Foundation of China [20834006, 20423003, 50521302]
- Open Project of State Key Laboratory of Supramolecular Structure and Materials [SKLSSM200706]
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A novel class of dumbbell-shaped dendritic molecules with a p-terphenylene core was synthesized, and their self-assembling properties were investigated. The incorporation of bulky dendritic wedges to the central stiff aromatic scaffolds could finely time their solubility in many organic solvents. Unlike the self-assembly behavior of p-terphenylen-1,4 ''-ylenebis(dodecanamide), the p-terphenylene cored different generation dendritic molecules could form gels in several kinds of organic solvents through a cooperative effect of the pi-pi stacking, hydrogen-bonding, and van der Waals forces. Interestingly, significant fluorescence enhancement was observed after gelation. Extensive investigations with atomic force microscopy (AFM), scanning electron microscopy (SEM), transmission electron microscopy (TEM), rheological measurements, UV-vis absorption spectroscopy, FT-IR spectroscopy, H-1 NMR, and X-ray powder diffraction (XRD) revealed that these dendritic molecules self-assembled into elastically interpenetrating one-dimensional nanostructures in organogels.
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