期刊
MACROMOLECULAR RAPID COMMUNICATIONS
卷 31, 期 11, 页码 975-979出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/marc.200900833
关键词
amphiphiles; rod-coil assemblies; self-assembly; sheets; vesicles
资金
- Korean Ministry of Science and Technology
- Ministry of Education and Human Resource Developement
- National Research Foundation of Korea [2002-0046425] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Dumbbell-shaped amphiphiles based on an elongated rod segment can self-assemble into planar networks with in-plane hexagonally ordered pores in aqueous solution. On increasing temperature, the 2D networks change into hollow capsules passing through the closed sheets as an intermediate structure due to a LCST behavior of the oligoether dendritic exterior. The primary driving force for this interesting feature seems to originate from a consequence of the energy balance between hydrophobic interactions of anisotropic rod segments and alkyl chains, and repulsive interactions between dissimilar blocks. This dynamic structural variation triggered by external stimuli in a self-assembling system can provide a useful strategy to create smart supramolecular materials and biomimetic systems.
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