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http://dx.doi.org/10.5012/bkcs.2008.29.8.1485

Self-assembly of Dumbbell-shaped Rod Amphiphiles Based on Dodeca-p-phenylene  

Huang, Zhegang (Center for Supramolecular Nano-Assembly and Department of Chemistry, Yonsei University)
Liu, Libin (Center for Supramolecular Nano-Assembly and Department of Chemistry, Yonsei University)
Lee, Eun-Ji (Center for Supramolecular Nano-Assembly and Department of Chemistry, Yonsei University)
Lee, Myong-Soo (Center for Supramolecular Nano-Assembly and Department of Chemistry, Yonsei University)
Publication Information
Abstract
Dumbbell-shaped aromatic amphiphilic molecules consisting of a dodeca-p-phenylene as a rigid segment and oligoether dendrons as a flexible chains were synthesized, characterized, and their aggregation behavior was investigated in the bulk and at the air-water interface. In contrast to the molecule 2 which shows a nematic liquid crystalline state, molecule 1 based on shorter dendritic chains was observed to self-assemble into a 3-D primitive orthorhombic supercrystal. And molecule 1 at the air-water interface was observed to reorganize from circular plates to ring structures by lateral compressions.
Keywords
Dumbbell-shape; Self-assembly; Nanocrystal; Nanoring; Circular plate
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